In Positive Pressure Reactor Patents (Class 422/226)
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Patent number: 11110411Abstract: The present invention relates to a vertical low-pressure reactor with stirred tank for leaching polymetal minerals and concentrates of lead, copper, zinc, iron and/or the mixtures thereof, in a solid-gas-liquid three-phase suspension system. The low-pressure vertical reactor with stirred tank consists of: a cylindrical vertical container with three or four deflectors equidistantly distributed across the 360°; a stirring system made up of two impellers coupled to a rotary shaft, that provides adequate reaction and interaction of the metal species of interest; a space of the volume of the reactor, corresponding to 20% to 35% of the total volume of the container, located at the top of the reactor and which acts as a gas chamber that provides a continuous feed of oxygen; and a system of coils placed on the outside or inside surface of the reactor to ensure efficient heat-transfer reactions and controlled kinetics.Type: GrantFiled: November 6, 2017Date of Patent: September 7, 2021Assignee: PENOLES TECNOLOGIA S.A. DE C.V.Inventors: Ricardo Benavides Perez, Isaias Almaguer Guzman, David Ezequiel Vazquez Vazquez
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Patent number: 10230290Abstract: A fluid circulating assembly includes a fan impeller having an inlet ring and a rear plate that together define a central fan chamber. The fluid circulating assembly also includes an electrical machine having a rotor assembly, a stator assembly, and a housing. The rotor assembly is attached to the fan impeller rear plate such that the electrical machine is located entirely outside the central fan chamber. The housing includes an annular center section and at least two extension portions extending radially outward from the annular center section.Type: GrantFiled: September 8, 2014Date of Patent: March 12, 2019Assignee: Regal Beloit America, Inc.Inventors: Jason Jon Kreidler, Rafal Pawel Rohoza
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Patent number: 9643146Abstract: A unit for processing a liquid/gas phase mixture, a mercaptan oxidation apparatus, and a method of processing a liquid/gas phase mixture are provided. In an embodiment, a unit for processing a liquid/gas phase mixture includes a vessel that is adapted to receive the liquid/gas phase mixture and a distributor that is disposed in the vessel. The distributor is adapted for flow of the liquid/gas phase mixture into the vessel, and the distributor includes a first outlet pipe that is horizontally disposed within the vessel. The first outlet pipe includes top orifices and bottom orifices that are spaced along the first outlet pipe, and the first outlet pipe is in fluid communication with the vessel through the top orifices and the bottom orifices. The top orifices have a smaller cross-sectional area than the bottom orifices.Type: GrantFiled: November 29, 2013Date of Patent: May 9, 2017Assignee: UOP LLCInventors: Jonathan Andrew Tertel, Quan Yuan, Stephen R. Addison
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Patent number: 9278324Abstract: A reactor and a reactor system for carrying out high temperature and high pressure reactions is disclosed herein. The reactor has an isolatable inner vessel for allowing for heat energy efficient cooling and heating of the reactor.Type: GrantFiled: March 27, 2007Date of Patent: March 8, 2016Assignee: RUBRECO INC.Inventors: Brian Harrison, Hurdon A. Hooper
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Patent number: 9018428Abstract: Disclosed is a reactor and agitator useful in a high pressure process for making 1-chloro-3,3,3-trifluoropropene (1233zd) from the reaction of 1,1,1,3,3-pentachloropropane (240fa) and HF, wherein the agitator includes one or more of the following design improvements: (a) double mechanical seals with an inert barrier fluid or a single seal; (b) ceramics on the rotating faces of the seal; (c) ceramics on the static faces of seal; (d) wetted o-rings constructed of spring-energized Teflon and PTFE wedge or dynamic o-ring designs; and (e) wetted metal surfaces of the agitator constructed of a corrosion resistant alloy.Type: GrantFiled: March 14, 2013Date of Patent: April 28, 2015Assignee: Honeywell International Inc.Inventor: Stephen A. Cottrell
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Patent number: 8992851Abstract: Continuous flow water treatment systems, devices and methods that reduce the costs associated with using oxidizing agents in water treatment by maximizing mixing energy with pressure of the solution in a continuous flow system. The systems comprise an inflow conduit that provides water to be treated to a mixing chamber in a housing, a first chemical injector mounted into either the inflow conduit or the housing that provides an oxidizing agent into the water flow, a driven impeller mounted within the mixing chamber that maintains the flow of fluid through the apparatus and provides agitation to the fluid within the mixing chamber, and an outflow conduit for expelling the treated water from the mixing chamber. The outflow conduit may be pressurized to increase the mixing energy in the mixing chamber.Type: GrantFiled: September 19, 2008Date of Patent: March 31, 2015Assignee: 0832521 B.C. Ltd.Inventors: Marten Hebert, Clifford Oleksiew
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Publication number: 20150086450Abstract: In an autoclave in a high pressure acid leaching process in which starting material slurry and sulfuric acid are stirred by stirring machines in each compartment in the autoclave partitioned by partition walls to proceed leaching, and slurry is transferred from a compartment on an upstream side to a compartment on a downstream side to sequentially proceed leaching, wherein starting material slurry supply tubes having the starting material slurry discharge ports and sulfuric acid supply tubes having sulfuric acid discharge ports are alternately disposed on a perimeter of stirring blades of the stirring machine provided in the compartment at an upstream end, and the starting material slurry and sulfuric acid are added to the compartment at the upstream end from the starting material slurry discharge ports and the sulfuric acid discharge ports positioned higher than an uppermost part of the stirring blades and lower than a contained liquid surface.Type: ApplicationFiled: April 15, 2013Publication date: March 26, 2015Inventors: Satoshi Matsubara, Osamu Nakai, Yoji Kyoda, Takashi Sakamoto, Koichiro Maki, Masaki Kitahara, Haruo Ishikawa
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Patent number: 8845976Abstract: The present invention relates to an apparatus, which can be part of a pre-treatment system in a plant for the production of fuels, e.g. bio-ethanol, derived from plant biomass, e.g. first generation crops, such as grain, sugarcane and corn or second generation crops such as lignocellulosic biomass. The invention relates to an apparatus for processing, such as fluffing and mixing, at least two media, such as a solid, e.g. biomass, and a fluid, e.g. steam, so as to rendering the first medium susceptible to efficient receiving of energy and/or mass which is provided by localized release of the second medium. Although the description of the present invention focuses on biomass, it is envisaged that the invention is generally applicable to control the mixing of at least two media by crossing their stream of while dispersing at least one of them.Type: GrantFiled: January 12, 2010Date of Patent: September 30, 2014Assignee: Biogasol ApSInventors: Finn Beldring, Dragan Lukic, Troels Hilstrom
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Publication number: 20140246366Abstract: A method of treating a site containing perfluoroalkyl compounds (PFCs) is described. The method and apparatus treats the site with fine oxygen/ozone gas bubbles delivered with a hydroperoxide coating and solution which is activated by self-created temperature or applied temperature to raise the oxidation potential above 2.9 volts. Once begun, the reaction is often self-promulgating until the PFC is exhausted, if PFC concentrations are sufficiently elevated.Type: ApplicationFiled: March 4, 2013Publication date: September 4, 2014Applicant: ThinkVillage-Kerfoot, LLCInventor: William B. Kerfoot
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Patent number: 8771605Abstract: Use of a high shear mechanical device incorporated into a process for the production of chlorobenzene is capable of decreasing mass transfer limitations, thereby enhancing the chlorobenzene production process. A system for the production of chlorobenzene from benzene and chlorine, the system comprising a reactor and an external high shear device, the outlet of which is fluidly connected to the inlet of the reactor; the high shear device capable of providing an emulsion of chlorine gas bubbles within liquid benzene.Type: GrantFiled: March 31, 2010Date of Patent: July 8, 2014Assignee: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
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Publication number: 20140066670Abstract: Disclosed is a reactor and agitator useful in a high pressure process for making 1-chloro-3,3,3-trifluoropropene (1233zd) from the reaction of 1,1,1,3,3-pentachloropropane (240fa) and HF, wherein the agitator includes one or more of the following design improvements: (a) double mechanical seals with an inert barrier fluid or a single seal; (b) ceramics on the rotating faces of the seal; (c) ceramics on the static faces of seal; (d) wetted o-rings constructed of spring-energized Teflon and PTFE wedge or dynamic o-ring designs; and (e) wetted metal surfaces of the agitator constructed of a corrosion resistant alloy.Type: ApplicationFiled: March 14, 2013Publication date: March 6, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventor: Stephen A. Cottrell
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Patent number: 8653207Abstract: The invention relates to a process and apparatus for preparing an ethylene polymer by free radical polymerization under ultra-high pressure. The polymerization is carried out in an autoclave reactor in the presence of a free radical initiator. The autoclave reactor is characterized by having one or more elongated baffles affixed to the interior reactor wall.Type: GrantFiled: November 30, 2012Date of Patent: February 18, 2014Assignee: Westlake Longview CorporationInventors: Bailey James Salmon, Alan G. Wonders, Wayne S. Strasser
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Patent number: 8617480Abstract: A concentrated acid treatment unit is composed of a reaction section and an agitation extraction section. A phenol sorped raw material obtained by defatting botanical resource-derived raw material by solvent to subject sorption phenols to sorption is introduced, thus obtaining mixed solution of phenol solution including a lignophenol derivative and concentrated acid solution including a cellulose hydrolysate. The reaction section agitates and mixes the phenol sorped raw material and concentrated acid to cause cellulose to be swollen to thereby convert lignin to lignophenol. A part of the cellulose is subjected to hydrolysis. The agitation extraction section receives the treated liquid sent from the reaction section and adds phenols for extraction thereto to cause lignophenol dispersed in the concentrated acid solution to be dissolved and extracted in phenols for extraction.Type: GrantFiled: October 21, 2009Date of Patent: December 31, 2013Assignees: Japan Science and Technology Agency, Kansai Chemical Engineering Co., Ltd.Inventors: Masamitsu Funaoka, Keigo Mikame, Hideo Noda
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Patent number: 8535526Abstract: The present discloses a method and a device for biogenic waste, or bio-waste treatment, and said method is as follows: Firstly, the biogenic waste is evenly mixed with water vapor, or steam, heating and pressurizing so that the temperature reaches 130-190° C. and the pressure reaches 1.5-1.9 MPa after mixture, and this state is maintained for 1-25 minutes; Then, the pressure of the mixture of said biogenic waste and water vapor is reduced to normal pressure, such as atmospheric pressure so as to conduct low-molecularization, such as decreasing or reduction of molecular weight of the biogenic waste to obtain a low-molecularized mixture, such as a low molecular weight mixture; finally, the low-molecularized mixture, such as low-molecular weight mixture is separated so as to obtain the final products. Said device includes reaction vessel, stirring device, vapor input device, pressure-reducing regulator and separation device.Type: GrantFiled: March 20, 2007Date of Patent: September 17, 2013Inventors: Joji Takase, Jun Yang
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Patent number: 8512573Abstract: Provided is an apparatus for treating by itself an organic waste material which can treat the waste material with steam having a high temperature and a high pressure and which can separate and recover the waste material and a liquid material given by performing the treatment continuously by a simple operation. An apparatus (10) for treating an organic waste material characterized in that it comprises a sealed vessel (12) having a closed space (S1) for holding an organic waste material therein, a steam jet means (14) provided in the sealed vessel (12) for providing a steam jet having such temperature and pressure that the waste material can be carbonized, a discharge port (16) arranged at the bottom of the sealed vessel (12) and having an opening/closing mechanism, and a separating and recovering means (18) for separating the waste material and a liquid material given after the treatment only by direct discharge operation from the discharge port (16) and recovering the waste material and the liquid material.Type: GrantFiled: May 27, 2005Date of Patent: August 20, 2013Assignee: G-8 International Trading Co., Ltd.Inventor: Kousaku Mabuchi
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Publication number: 20130030205Abstract: A method of esterifying free fatty acid in natural oil comprises heating the natural oil (2) to a first temperature above a reaction temperature, feeding the heated natural oil into an acid-resistant pipe reactor (5), providing a mixture of acid catalyst (6) and short chain alcohol (8) at a second temperature below the reaction temperature, and feeding the mixture of acid catalyst and short chain alcohol into the natural oil in the pipe reactor (5). The short chain alcohol and free fatty acid react at the reaction temperature to form an ester.Type: ApplicationFiled: February 7, 2011Publication date: January 31, 2013Inventors: Richard Davis Jackson, Owen Matthew Davies
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Publication number: 20120177544Abstract: A system for production of nitrobenzene that may include a high shear device configured to produce a nanoemulsion having benzene particles dispersed in a mixture of nitric acid and sulfuric acid, wherein the particles have a mean diameter of less than about 1.5 microns; a pump configured to deliver a pressurized liquid stream to the high shear device; and a vessel operated under a pressure of greater than 304 kPa and less than 6080 kPa, the vessel configured to receive the nanoemulsion from the high shear device.Type: ApplicationFiled: March 9, 2012Publication date: July 12, 2012Applicant: H R D CorporationInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory G. Borsinger, Aziz Hassan
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Patent number: 8216345Abstract: A gasification system is disclosed having a combustion or reaction vessel, a scrubber housing, and a filter housing. A carbonaceous fuel is partially combusted in the reaction vessel to generate a combustible gas. An improved ash support and removal system reduces clogging and other problems in the reaction vessel. The combustible gas passes through the scrubber housing to remove matter such as tar and oil, and the scrubbed gas passes through a hybrid blower to the filter housing. Wood chips are used in the filter housing to provide a relatively clean, dry gas. Wastewater and other waste products from the scrubber housing and filter housing are captured and returned to the reaction vessel.Type: GrantFiled: April 10, 2008Date of Patent: July 10, 2012Assignee: Verde Reformation, Inc.Inventors: Jackie W. Rogers, Michael W. Rogers
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Patent number: 8206653Abstract: To provide an organic synthesizer that can conduct a pressure reaction and an atmospheric reaction in one organic synthesizer. An organic synthesizer comprising a reaction vessel support part (160), which can support two or more reaction vessels, and pressure regulation means (164) for regulating the pressure within the reaction vessel supported by the reaction vessel support part (160) by supplying/discharging gas. Two or more pressure regulation means (164) are provided for each reaction vessel supported by the reaction vessel support part (160). At least one pressure regulation means (164A) in the two or more pressure regulation means (164) is constructed so as to be detachable from and attachable to the other pressure regulation means (164B). The gas supply/discharge pipes (174a to 174d) are constructed so that a part near the front end can be flexed in a vertical direction and in a lateral direction.Type: GrantFiled: October 11, 2010Date of Patent: June 26, 2012Assignee: Sibata Scientific Technology Ltd.Inventors: Masatoshi Shibata, Yutaka Mashiyama, Yasuyuki Suzuki, Isamu Hiruta, Toshiaki Wada, Tetsuo Tomoda
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Publication number: 20120100045Abstract: The present invention relates to an apparatus, which can be part of a pre-treatment system in a plant for the production of fuels, e. g. bio-ethanol, derived from plant biomass, e. g. first generation crops, such as grain, sugarcane and corn or second generation crops such as lignocellulosic biomass. The invention relates to an apparatus for processing, such as fluffing and mixing, at least two media, such as a solid, e. g. biomass, and a fluid, e. g. steam, so as to rendering the first medium susceptible to efficient receiving of energy and/or mass which is provided by localized release of the second medium. Although the description of the present invention focuses on biomass, it is envisaged that the invention is generally applicable to control the mixing of at least two media by crossing their stream of while dispersing at least one of them.Type: ApplicationFiled: January 12, 2010Publication date: April 26, 2012Applicant: Biogasol IPR ApSInventors: Finn Beldring, Dragan Lukic, Troels Hilstrøm
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Publication number: 20120058024Abstract: Systems disclosed herein may include at least one high shear mixing device configured to produce a dispersion of oxygen-containing gas bubbles in toluene liquid phase, wherein the dispersion has a mean bubble diameter of less than 5 microns; a pump configured to deliver a liquid stream comprising the toluene to the high shear mixing device; and a vessel configured to receive the dispersion from the high shear mixing device and configured to maintain a predetermined pressure and temperature.Type: ApplicationFiled: November 16, 2011Publication date: March 8, 2012Applicant: H R D CorporationInventors: Abbas HASSAN, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
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Patent number: 8066953Abstract: Apparatus and method for hydrolyzing biological material for safe disposal thereof without the necessity of incineration or use of disinfectants are described. An alkaline solution having a concentration and an amount effective for hydrolyzing the biological material is brought into contact therewith by means of rotating paddles which both pound the biological material into small pieces and thoroughly mix the alkaline solution with the material under pressure and at elevated temperature. Following the hydrolysis of the biological material, a chosen portion of the water is removed from the alkaline solution and from the liquefied biological material, such that the resulting product solidifies when cooled. The present safe disposal of the biological material does not require incineration thereof, the addition of disinfectants thereto, or the discharge of liquid effluent containing processed biological material into the sewage system.Type: GrantFiled: June 15, 2008Date of Patent: November 29, 2011Assignee: Gyver L. Electric, Inc.Inventor: Mark R. Muth
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Patent number: 8038958Abstract: The present invention relates to a method for decomposing and recovering an isocyanate compound, which comprises: continuously mixing and dispersing into water at high pressure and high temperature an isocyanate compound having at least one isocyanate group or group derived from an isocyanate group in a molten state or solution state, supplying a liquid mixture containing the isocyanate compound and the water at high pressure and high temperature continuously to a reactor, followed by subjecting the isocyanate compound to a decomposition reaction in the reactor, and recovering a raw material for the isocyanate compound or a derivative thereof; and an apparatus for decomposing and recovering an isocyanate compound, which comprises: a reactor which brings water at high pressure and high temperature into contact with an isocyanate compound having at least one isocyanate group or group derived from an isocyanate group to cause a decomposition reaction, a water supply line which continuously supplies the water atType: GrantFiled: July 12, 2006Date of Patent: October 18, 2011Assignees: Kobe Steel, Ltd., Mitsui Chemicals, Inc.Inventors: Fumihiko Kasuya, Masahiro Yamagata, Shigetoshi Suzuki, Tadashi Yoshida
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Patent number: 8017089Abstract: A method and apparatus for conducting supercritical wet oxidation reactions wherein any precipitated solids do not contact the solid side walls of the containment vessel so as to prevent any of these precipitated solids from adhering to or corrode the vessel walls is provided. To do this, a controlled, continuous flow of clean fluid, preferably under supercritical conditions, is introduced to the process so as to form a film-like, clean fluid surface between the physical containment vessel walls and the supercritical wet oxidation reactants.Type: GrantFiled: July 25, 2008Date of Patent: September 13, 2011Assignee: Eau-Viron IncorporatedInventor: James Titmas
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Publication number: 20110196136Abstract: Provided is a Phase-Separation system plant for botanical resource, a conversion method, a concentrated acid treatment unit, and a concentrated acid treatment method by which lignin derivatives and hydrolyzed carbohydrate are manufactured out of a botanical resource efficiently and continuously. A concentrated acid treatment unit (3) is composed of a reaction section (20) and an agitation extraction section (25). A phenol sorped raw material (16) obtained by defatting botanical resource-derived raw material (15) by solvent (14) to subject sorption phenols (13) to sorption is introduced, thus obtaining mixed solution of phenol solution including a lignophenol derivative and concentrated acid solution including a cellulose hydrolysate. The reaction section (20) agitates and mixes the phenol sorped raw material (16) and concentrated acid (21A) to cause cellulose to be swollen to thereby convert lignin to lignophenol. A part of the cellulose is subjected to hydrolysis.Type: ApplicationFiled: October 21, 2009Publication date: August 11, 2011Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, KANSAI CHEMICAL ENGINEERING CO., LTD.Inventors: Masamitsu Funaoka, Keigo Mikame, Hideo Noda
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Patent number: 7988869Abstract: A reactor for treating with pressurized water a material in a fluid reaction medium. It comprises a body (2) delimiting a reaction area (10), an inlet (48) for the material to be treated in the reaction area (10), a point (46) for introducing an oxidant into the reaction area (10), at least one outlet for the treated material outside the reaction area (10), the material to be treated follows a path defined in the reaction area between its inlet and its outlet. The point (46) for introducing the oxidant in the reaction area (10) is located downstream from the inlet (48) for the material and is spaced apart from the latter by a certain distance so as to define an anoxic area (20) comprised between the inlet for the material to be treated and the point for introducing the oxidant, an area in which the fluid medium is in anoxia.Type: GrantFiled: September 26, 2006Date of Patent: August 2, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Hubert-Alexandre Turc, Christophe Joussot-Dubien
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Patent number: 7964026Abstract: A gasification system having a combustor vessel, an optional scrubber vessel, an optional fixer vessel, an optional cyclone vessel and an optional demister vessel. A wide variety of possibly moist solid or semi-solid carbonaceous fuels may be partially combusted in the combustor to generate a combustible gas and a mineral ash. An improved ash support and removal subsystem reduces clogging and other problems. The combustible gas is conveyed by optional heavy-duty blowers through the optional vessels to remove liquids and particulates and to undergo catalytic chemical reactions to provide a relatively clean, dry, highly-combustible hydrocarbon gas that captures a relatively high fraction of the potential heating value of the fuel. Internal gases, liquids and particulates from the vessels may be recycled inside the system to improve efficiency and prevent liquid waste. A portion of the internal liquids may also be extracted for other uses.Type: GrantFiled: July 17, 2006Date of Patent: June 21, 2011Assignee: Power Reclamation, Inc.Inventor: Michael W. Rogers
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Patent number: 7931876Abstract: The invention provides a method and an apparatus for manufacturing a developer, which can manufacture a developer having a uniform and fine particle shape in a narrow particle size distribution and having a coloring agent highly dispersed therein at the primary particle level, the method and apparatus at the same time enabling continuous and efficient production without opening and closing a reactor. The method comprises the steps of: dissolving a binding resin component in a supercritical or subcritical fluid so that the binding resin component is blended with a coloring agent component; and reducing the solubility of the binding resin component in the supercritical or subcritical fluid so that the binding resin component is precipitated in the form of particles with the coloring agent component dispersed in the interior thereof.Type: GrantFiled: December 17, 2008Date of Patent: April 26, 2011Assignee: Sharp Kabushiki KaishaInventors: Shinichi Nakano, Yasuhiro Shibai, Keiichi Kikawa
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Publication number: 20110027144Abstract: To provide an organic synthesizer that can conduct a pressure reaction and an atmospheric reaction in one organic synthesizer and can realize attachment of reaction vessels to the organic synthesizer and detachment of the reaction vessels from the organic synthesizer without applying any load to gas supply/discharge pipes. [Means For Solving Problems] An organic synthesizer comprising a reaction vessel support part (160), which can support two or more reaction vessels, and pressure regulation means (164) for regulating the pressure within the reaction vessel supported by the reaction vessel support part (160) by supplying/discharging gas. Two or more pressure regulation means (164) are provided for each reaction vessel supported by the reaction vessel support part (160). At least one pressure regulation means (164A) in the two or more pressure regulation means (164) is constructed so as to be detachable from and attachable to the other pressure regulation means (164B).Type: ApplicationFiled: October 11, 2010Publication date: February 3, 2011Applicant: Sibata Scientific Technology Ltd.Inventors: Masatoshi Shibata, Yutaka Mashiyama, Yasuyuki Suzuki, Isamu Hiruta, Toshiaki Wada, Tetsuo Tomoda
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Patent number: 7871509Abstract: Apparatus for modifying bitumen. The apparatus includes a multi-section loop tube reactor A circulation pump (11) circulates bitumen in the reactor (10) and air is introduced at air injection point (13). Bitumen is introduced into the reactor (10) at inlet (14) by variable speed pump P1. A plurality of mixers (15) are located between the air injection point (13) and a head section (24) beyond which is an outlet (27) where modified bitumen is drawn off by variable speed pump P2.Type: GrantFiled: July 20, 2005Date of Patent: January 18, 2011Inventor: John Brodie Matthews
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Publication number: 20100183486Abstract: Use of a high shear mechanical device incorporated into a process for the production of chlorobenzene is capable of decreasing mass transfer limitations, thereby enhancing the chlorobenzene production process.Type: ApplicationFiled: March 31, 2010Publication date: July 22, 2010Applicant: H R D CORPORATIONInventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
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Patent number: 7648635Abstract: In a method for extracting ingredients, particularly foreign substances, from liquids or solids dispersions by using compressed extraction agents such as, for instance, supercritical or liquid carbon dioxide, the liquid or dispersion is applied as a thin film in a pressure-tight reactor and the surface of the thin film is treated with the extraction agent, particularly carbon dioxide, wherein the surface of the thin film is constantly renewed over at least a portion of the layer thickness of the thin film by mechanically acting on said liquid or dispersion.Type: GrantFiled: August 26, 2003Date of Patent: January 19, 2010Assignee: Natex Prozesstechnologie GesmbhInventors: Helmut Seidlitz, Eduard Lack
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Patent number: 7556784Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically producing aromatic discarboxylic acids. The process reduces costs associated with hydrogenation by forming a final composite product containing unhydrogenated acid particles.Type: GrantFiled: March 18, 2008Date of Patent: July 7, 2009Assignee: Eastman Chemical CompanyInventors: Robert Lin, Marcel de Vreede
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Publication number: 20090110609Abstract: A pressurization device is for a flexible enclosure disposable within an environment having air at a pressure and configured to define an interior chamber having a sufficient volume to entirely contain at least one person and containing air. The device includes a gas generator configured to generate and release a gas into the enclosure chamber such that the enclosure air pressure is increased or maintained above the environment air pressure to prevent entry of environment air into the enclosure chamber. The generator is preferably configured to generate the gas by a chemical reaction, and preferably includes a quantity of at least one reactant, such as sodium nitrate, sulfuric acid or ammonium chloride, and initiates chemical reaction of the reactant to generate the gas. Furthermore, the pressurization device is preferably incorporated into an air treatment system including an oxygen generator that generates and discharges oxygen into the enclosure chamber.Type: ApplicationFiled: November 22, 2005Publication date: April 30, 2009Inventor: Edward V. Roscioli
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Patent number: 7402290Abstract: Methods and apparatus are disclosed for mixing fluid streams of different compositions to minimize fluid condensation inside a mixing vessel where the objective is to produce an all-vapor mixture product.Type: GrantFiled: July 2, 2003Date of Patent: July 22, 2008Assignee: Stone & Webster Process Technology Inc.Inventors: Douglas S. Hubbell, Dino Pizzelli, Edward P. Hunt, Glenn D. Nasman
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Patent number: 7399408Abstract: A method and device for oxidization of materials in supercritical water. The method involves a) introducing a fluid containing water and an oxidizing agent in a ring-shaped area and through a first end of a substantially tube-shaped reactor comprising an external wall and an internal tube, b) heating the fluid in the ring-shaped area, c) introducing the heated fluid into the internal tube and simultaneously introducing material to be treated into said internal tube at a second end of the reactor, d) mixing the fluid and the material to be treated in a first portion of the internal tube, followed by cooling the obtained mixture in a second portion of the internal tube, and e) isobarically discharging the fluid/oxidized material from the internal tube of the reactor.Type: GrantFiled: November 19, 2004Date of Patent: July 15, 2008Assignee: Commissariat A l'Energie AtomiqueInventors: Christophe Joussot-Dubien, Gérard Didier, Hubert-Alexandre Turc
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Patent number: 7230037Abstract: The present invention relates to a method for the continuous mixing of at least one polyol component and at least one isocyanate component and optionally additives to form a polyurethane reaction mixture in a stirrer mixer with an axially conveying stirrer.Type: GrantFiled: September 5, 2003Date of Patent: June 12, 2007Assignee: Hennecke GmbHInventors: Hans-Michael Sulzbach, Reiner Raffel, Jürgen Wirth, Wolfgang Pawlik, Florian Thiebes, Lothar Röhrig
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Patent number: 7182861Abstract: A method for use in two-components electrostatic image developers is disclosed, in which secure separation of a carrier coating resinous materials from a core magnetic material is achieved without affecting the properties of the core materials through process steps benign to the environment in super- or sub-critical water compositions under the conditions of a temperature of 300° C. or more and a pressure of 20 MPa. The core magnetic material is subsequently recycled for forming carrier. This method may also be useful for processing waste including magnetic materials with silicone resin coating.Type: GrantFiled: July 16, 2002Date of Patent: February 27, 2007Assignee: Ricoh Company, Ltd.Inventors: Kunitoshi Sugiyama, Yoshihiko Itoh, Hideyuki Santoh, Kunio Arai, Tadafumi Ajiri
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Patent number: 7045100Abstract: Method for producing fatty acid methyl ester, including compounding saturated and unsaturated higher fatty substances from at least one of vegetable and animal with an alkaline solution dissolved in alcohol to form a mixture. The method also includes emulsifying the mixture to reach a chemical balance state in a reaction section, wherein fats are transesterified into fatty acid methyl ester, wherein border surfaces of the mixture are enlarged by dynamic turbulence in the reaction section and the transesterification is performed under pressure, and wherein the pressure is reduced during transesterification. The method further includes after reaching a chemical balance state, separating residues from the fatty acid methyl ester in a phase separation section. Apparatus for producing fatty acid methyl ester.Type: GrantFiled: September 28, 2001Date of Patent: May 16, 2006Assignee: Energea Unwelttechnologie GmbHInventors: Nurhan Ergün, Peter Panning
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Patent number: 6759014Abstract: A parallel reactor system including a reactor and vessels in the reactor for holding reaction mixtures, and a cannula for introducing fluid reaction material into the vessels. A robot system is operable to insert the cannula into cannula passages in the reactor for delivery of reaction materials, including slurries, to respective vessels, and to withdraw the cannula from the cannula passages after delivery. Related methods are also disclosed.Type: GrantFiled: January 26, 2001Date of Patent: July 6, 2004Assignee: Symyx Technologies, Inc.Inventors: G. Cameron Dales, Jonah R. Troth, Kenneth S. Higashihara, Gary Diamond, Vince Murphy, William H. Chandler, Jr., Trevor G. Frank, J. Christopher Freitag
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Patent number: 6673211Abstract: An apparatus for loading fibers in a fiber suspension with calcium carbonate has a housing with an inlet and an accept outlet. A rotatable distribution member is positioned within the housing. A rotor and stator assembly is positioned within the housing radially outside of the distribution member. A toothed ring is interposed between the distribution rotor and the rotor and stator assembly. The toothed ring and the rotor and stator assembly define a gas ring therebetween. A reactant gas supply is fluidly coupled with the gas ring.Type: GrantFiled: July 11, 2001Date of Patent: January 6, 2004Assignee: Voith Paper Patent GmbHInventor: Klaus Doelle
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Patent number: 6648932Abstract: A gasification reactor apparatus (10) comprising a gasification vessel (12), a gas-fired combustion chamber (70) and a combination fan and cyclone unit (20) in an upper part (12′) of the vessel (12) with two functions: first, the fan (62, 64) impels incoming feedstock (14, 14′) centrifugally into contact with the hot inside surface of the vessel to produce rapid onset of gasification. Second, the unit (20) exerts a cyclonic motion on the product gas causing outward separation of particulate matter from the gas, which passes to the outlet via a path through the middle of the vessel (12).Type: GrantFiled: March 15, 2000Date of Patent: November 18, 2003Assignee: Graveson Energy Management Ltd.Inventor: Maurice Edward George Maton
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Publication number: 20030157003Abstract: This invention relates to apparatus particularly a monolith catalytic reactor in a stirred tank reactor.Type: ApplicationFiled: February 15, 2002Publication date: August 21, 2003Inventors: Reinaldo Mario Machado, James Edward Koniski, Stephen Kohler
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Patent number: 6350054Abstract: Improved apparatus for mechanically stirring a quench-cooled subfluidized particulate bed of polymerized monomer lowers lumping of polymer particles by using substantially contiguous paddle stations disposed along the drive shaft within the reactor in combination with a plurality of sub-stations in at least one paddle station class, each sub-station having a width along the shaft of no more than 50 percent of the total width of the paddle station, and sub-station paddles attached to the shaft at each sub-station so as to sweep through the particulate bed.Type: GrantFiled: December 7, 1998Date of Patent: February 26, 2002Assignee: BP Corporation North America Inc.Inventors: James Hanawalt Lee, Chi-Hung Lin, Barry F. Wood
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Patent number: 6267934Abstract: The present invention relates to an apparatus for the continuous manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous solution of an alkali metal salt and crystallization of the persalt. The persalt is formed in a crystallizer classifier, which is made up of stirred region and a growth region for the persalt crystals a non-stirred clarifying region for the solution and a classification region for the particles obtained by elutriation in a liquid stream withdrawn in the clarifying region.Type: GrantFiled: February 22, 1999Date of Patent: July 31, 2001Assignee: Solvay Interox (Société Anonyme)Inventors: Romano Pardini, Soraya Parvaneh, Corrado Baccani
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Patent number: 6183706Abstract: A method is disclosed for recovering a metal from a metal containing material by autoclaving with an autoclave which includes an agitator that includes a first inlet for a recycled oxygen-containing gas, a second inlet for a fresh oxygen-containing gas, an impeller having a plurality of outlets to recirculate or introduce the oxygen-containing gases into the slurry and a set of mixing blades located below the outlets to radially disperse gas bubbles substantially uniformly throughout the slurry. The outlets for the gas can be located in an intermediate set of blades for thorough dispersion of the gas bubbles in the slurry.Type: GrantFiled: March 11, 1998Date of Patent: February 6, 2001Assignee: Placer Dome, Inc.Inventor: James A. King
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Patent number: 6146613Abstract: A method is provided for zeolite synthesis from a synthesis medium containing in particular a trivalent aluminum source, a tetravalent silicon source, at least an alkaline or alkaline-earth cation in hydroxide form and water in a reactor containing a solid helical moving body in a guiding tube defining an internal space and a space external to the tube. The invention is characterized in that the synthesis medium is circulated in the reactor in a continuous flow passing through the internal space then the space external to the tube and returning to the internal space, only driven by the roation of the solid helical moving body, at a speed of less than 500 rpm, in the tube which is kept fixed, the synthesis medium being kept at a temperature suitable for at least one of the ripening operations or the crystal growth of the synthesized zeolite. The invention also is directed to a device for implementing the method.Type: GrantFiled: April 5, 1999Date of Patent: November 14, 2000Assignee: Elf AquitaineInventors: Didier Anglerot, Jacques Bousquet, Francesco Di Renzo, Jean-Paul Klein, Philippe Schulz, Christine Bebon, Didier Colson
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Patent number: 6139755Abstract: The invention relates to a method for oxidizing substances contained in sewage, a nozzle system, and a plant for carrying out this method. The method is characterized in that three radical chain circuits are superimposed, thus producing a continuous reaction chain which is maintained by incorporating a radical starter, a catalyst and oxygen into the sewage flow. The reaction is characterized in that the reaction partners are brought together via a nozzle system which creates unsteady flowing conditions. To reduce operational costs, the sewage is fed by the nozzle system to the autothermic reactor via a heat exchanger which is heated by the treated sewage flow. The method is characterized by its flexibility in treating different kinds of sewage flow of different concentrations. The advantages are, above all, the following: reduced sludge production, high biocompatibility of the residues to be transported, and low consumption of chemical substances.Type: GrantFiled: March 23, 1999Date of Patent: October 31, 2000Inventors: Walter Marte, Martin Meyer, Ulrich Meyer
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Patent number: 6096170Abstract: A pressure vessel 1 with an output arrangement 5, primarily for use with pulp bleaching using peroxide at high temperature and high pressure, comprising a pressure vessel housing 1, a first end 2, as well as an output arrangement 3 at a second end, whereby the output arrangement 3 comprises an output scraper 4 with at least one scraper arm 5, as well as at least one cleaning member 6, a driving arrangement 7, a driving axle 8, a bearing 9, a supporting structure 10 for the driving arrangement 7, a normally open first outlet 11, as well as, preferably, a normally closed second outlet, whereby the first outlet 11 and the second outlet 12 are provided in the wall 1 of the pressure vessel.Type: GrantFiled: December 22, 1997Date of Patent: August 1, 2000Assignee: Kvaerner Pulping AktiebolagInventors: Hans Olsson, Yrjo Schildt
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Patent number: 6054103Abstract: A mixing vessel for a process using supercritical process media, the vessel including an agitator for mixing a batch of materials and a process media in a supercritical state in the vessel to produce a reaction mixture based on a selectable reaction process; and heat transfer system for controlling temperature of the reaction mixture, the heat transfer system comprising a liner that generally conforms to an interior surface geometry of the vessel, with the liner comprising a high thermal conductivity material; the liner comprising an interior heat transfer surface in thermal exchange with the reaction mixture, and a plurality of fluid channels; heat transfer fluid that circulates through the channels and in thermal exchange with the heat transfer surface; and a heat transfer fluid supply exterior the pressure vessel for circulating the heat transfer fluid through the channels.Type: GrantFiled: June 25, 1997Date of Patent: April 25, 2000Assignee: Ferro CorporationInventor: Frederick S. Mandel