Having Rotating Member Within Chamber Patents (Class 422/259)
  • Patent number: 10710100
    Abstract: An apparatus for mass transfer between a liquid and a gas inside a rotor having a packing. The liquid is introduced at a center of the rotor and driven outward through the packing by centrifugal force generated by rotation of the rotor, and the gas surrounding the rotor is forced inward through the rotor by a pressure of the gas, counter to the liquid flow in the rotor. The packing inside the rotor is divided into individual packing segments that together form a circular disk. Each circular ring segment is formed by at least one structured packing formed of a plurality of superimposed woven, knitted, mesh or lattice structured surfaces composed of metal, in particular sheet-metal strips, or plastic or glass fibers, to which the axis of rotation of the rotor runs perpendicular.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 14, 2020
    Assignee: JULIUS MONTZ GmbH
    Inventors: Robin Schulz, Egon Zich, Helmut Jansen, Thorsten Erik Alexander Hugen
  • Patent number: 10702836
    Abstract: In an apparatus for mass transfer between a liquid and a gas inside a rotor, the liquid is supplied to a center of the rotor and is driven outward by centrifugal force generated by rotation of the rotor, the gas surrounding the rotor is forced inward through the rotor by a pressure of the gas, counter to the liquid flow in the rotor, and the rotor has a plurality of passages lying in the plane of the rotor that begin at a center of the rotor and terminate at an outer circumference of the rotor. The passages are each filled with a packing that increases the area of contact between the liquid and the gas.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: July 7, 2020
    Assignee: JULIUS MONTZ GmbH
    Inventors: Robin Schulz, Egon Zich, Helmut Jansen, Thorsten Erik Alexander Hugen
  • Patent number: 10343965
    Abstract: Various processes for the separation of a mixture containing dichlorophenols are described. In various aspects, the present invention relates to separation processes that produce an extract enriched in 2,4-dichlorophenol content and an extract enriched in 2,5-dichlorophenol content. The present invention further relates to various processes that integrate with these separation processes, such as a process for producing 3,6-dichloro-2-methoxybenzoic acid (dicamba) or salt or ester thereof or a process for producing 2,4-dichlorophenoxyacetic acid (2,4-D) or salt or ester thereof.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 9, 2019
    Assignee: Monsanto Technology LLC
    Inventors: Kam-To Wan, Eduardo A. Casanova, John H. Ahn, Junqiu Yang
  • Patent number: 10252184
    Abstract: An extracting method includes: an extracting step of extracting a specific component from a material fluid to an extraction agent while allowing the material fluid and the extraction agent to flow in a channel of the extraction unit for each stage; an outflowing step of outflowing a mixture fluid from the channel of the extraction unit for each stage before the extraction of the specific component reaches an extraction equilibrium; and a pH regulating step of regulating the pH of the material fluid separated in a separating step after flowing out of the channel of the extraction unit for a predetermined stage so as to cause a reverse change from a change caused in the pH of the material fluid in the extracting step, before the material fluid is introduced into the channel of the extraction unit for a stage succeeding to the predetermined stage.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: April 9, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Akira Matsuoka, Koji Noishiki
  • Patent number: 8961893
    Abstract: A chemical diluter system includes a housing. A container is mounted in the housing and is adapted for storing soluble flowable chemical solids. A mixing chamber is disposed within the housing and adjacent to the container. A disposable dispenser is attached to the container for automatically dispensing a measured amount of the chemical solids from the container into the mixing chamber via gravity flow. The mixing chamber is adapted to receive fluid for dissolution of the chemical solids and for dispensing a diluted chemical solution of the chemical solids.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: February 24, 2015
    Assignee: NCH Corporation
    Inventors: Wayne Anthony Fleming, Jose Eduardo G. Evaro
  • Patent number: 8702863
    Abstract: A method for the evaporative production of phenol-BPA adduct crystals in a crystallizer is provided. First, a supersaturated BPA solution is introduced into a crystallizer that includes a cylindrical vessel and a concentrically-disposed draft tube that defines an annular space between the vessel and tube. Next, the BPA solution is circulated through the draft tube and annular space while a coolant is uniformly distributed in the circulating flow by radially injecting a volatile hydrocarbon compound at between about 30% and 60% of a radial extent of the annular space of to form a BPA mixture. Phenol-BPA adduct crystals are produced in the vessel by evaporating the volatile hydrocarbon compound out of the BPA mixture. The method provides a consistent and uniform concentration of coolant across the surface of the boiling zone that prevents or at least reduces unwanted crystal nucleation.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 22, 2014
    Assignee: Badger Licensing LLC
    Inventor: Stephen W. Fetsko
  • Patent number: 8591825
    Abstract: An extraction apparatus capable of continuously and efficiently extracting a biological substance is provided. Multiple rotation discs are utilized in the extraction apparatus to significantly improve the efficiency of extracting the biological substance by using an extraction solvent. Specifically, when the extraction solvent is applied to extract lipids from microalgae, retention time of the microalgae in the extraction solvent can be significantly increased, and solubility of the microalgal lipids in the extraction solvent can be improved. Hence, the efficiency of extracting the lipids from the microalgae by using the extraction solvent can be enhanced. On the other hand, owing to the improvement of the efficiency of extracting the lipids from the microalgae, the amount of the extraction solvent can be reduced, and production costs can be reduced as well.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: November 26, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chen-Hsi Cheng, Chung-Cheng Han, Tz-Bang Du, Yun-Huin Lin, Hom-Ti Lee
  • Patent number: 8524859
    Abstract: In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Yu Feng Wang, Richard C-M Yeh
  • Patent number: 8491857
    Abstract: Processes and apparatus produce economically feasible biodiesel without subsidies. Toward that end, integrated small plants process materials containing lipids with anhydrous bioethanol as solvent and reactant, and sulfuric acid and potassium hydroxide mainly as catalysts to produce up to 3 million gallons of biodiesel per plant per year. The product is predominantly fatty acids ethyl esters (FAEE) and a chemically-enhanced organic fertilizer as byproduct. The raw material may include a wide variety of non-edible solid matter that contains lipids, which normally have from 0.5% to 80% by weight of free fatty acids in total oils. Multiple apparatus makes this process feasible. In addition to not competing with food production, since they supply fertilizer for small scale farmers, the processes and apparatus allow sustainable liquid fuel production.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 23, 2013
    Inventor: Antonio Cantizani
  • Patent number: 8431084
    Abstract: A crystallizer for the evaporative production of phenol-BPA adduct crystals is provided that achieves more uniform crystal growth while suppressing undesired crystal nucleation. The crystallizer includes a cylindrical vessel; a draft tube concentrically disposed within the cylindrical vessel such that an annular space is defined between the vessel and tube; an impeller that circulates liquid in the vessel through the draft tube and the annular space, and a plurality of nozzles mounted around an inner wall of said cylindrical vessel that introduce an evaporative coolant into the vessel. Each of the nozzles includes a discharge end disposed between about 30% and 60% of a radial extent of the annular space, and is located below an upper end of the draft tube a distance of between about 50% to 150% of the diameter of the vessel. Such a nozzle arrangement provides a consistent and uniform concentration of coolant across the surface of the boiling zone that prevents or at least reduces unwanted crystal nucleation.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 30, 2013
    Assignee: Badger Licensing LLC
    Inventor: Stephen W. Fetsko
  • Patent number: 8163248
    Abstract: According to the method of an aspect of the present invention, by forming the laminated body of the liquids by laminating a plurality of liquids after discharging the plurality of liquids from a central portion of the rotational stage onto the rotational stage and rotating the rotational stage after the formation, the centrifugal force by the rotation enables the laminated body to form a thin layer. Accordingly, because the diffusion between the layers can be executed rapidly in the latter mixing process, a mixing of liquids is allowed to advance immediately.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: April 24, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Kazunori Takahashi
  • Patent number: 8092076
    Abstract: A device for extracting and fragmenting substances, especially infectious or malodorous substances, in a laboratory test vessel (3) is provided. The device includes a processing tool (11) and a stirrer element (33). An interior of the laboratory test vessel (3) is subdivided by a sieve (59) into a collection chamber and a processing chamber. The sieve (59) prevents parts of the substances having a defined rain size from reaching the collection chamber (73). A sample can be taken from the collection chamber using a pipette (45) which is passed through the stirrer element (33) and the sieve (59).
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: January 10, 2012
    Assignee: Medic Tools AG
    Inventor: Franz Gregor Bucher
  • Patent number: 8020710
    Abstract: The invention relates to a method for reversing the dispersion formed in the mixing section of liquid-liquid extraction and kept condensed in the separation section and the separated solutions form the rear end of the separation section to flow back towards the feed end of the separation section. The invention also refers to the extraction equipment for implementing the reversed flow.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: September 20, 2011
    Assignee: Outotec Oyj
    Inventors: Bror Nyman, Eero Ekman, Stig-Erik Hultholm, Pertti Pekkala, Juhani Lyyra, Launo Lilja, Raimo Kuusisto
  • Patent number: 7972561
    Abstract: The invention relates to a microfluidic device comprising at least one micro-channel connected at one end to an enclosed area, characterized in that it also comprises an inlet circuit and an outlet circuit connected to the enclosed area and between which the fluid can be discharged without any contact with the micro-channel, wherein at least one of said inlet and outlet circuits can be controlled in such a way that the pressure at the end of the micro-channel can be modified independently from the pressure at the other end of the micro-channel.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: July 5, 2011
    Assignees: Centre National de la Recherche, Institut Curie
    Inventors: Jean-Louis Viovy, Claus Futterer, Nicolas Davis Minc, Jean Rossier, Jean-Hugues Codarbox
  • Publication number: 20110147305
    Abstract: This invention relates to a liquid-liquid extraction tower comprising a feed inlet and a plurality of stages and an area for collection of the extract; at least one stage comprising a mixing zone having a driven center horizontal impeller positioned between a pair of horizontal annular shroud baffles having open centers, the impeller having a center impeller plate; wherein the feed inlet is positioned adjacent the center impeller plate. This invention also relates to an improved liquid-liquid extraction process comprising symmetrically introducing the feed adjacent the center impeller plate.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Donald Hugh Marlow, Minye Liu
  • Patent number: 7927006
    Abstract: A device for extracting and fragmenting substances, especially infectious or malodorous substances, in a laboratory test vessel (3) is provided. The device includes a processing tool (11) and a stirrer element (33). An interior of the laboratory test vessel (3) is subdivided by a sieve (59) into a collection chamber and a processing chamber. The sieve (59) prevents parts of the substances having a defined rain size from reaching the collection chamber (73). A sample can be taken from the collection chamber using a pipette (45) which is passed through the stirrer element (33) and the sieve (59).
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: April 19, 2011
    Assignee: Medic Tools AG
    Inventor: Franz Gregor Bucher
  • Patent number: 7906016
    Abstract: A system includes a first source including a first reactant; a second source including a second reactant capable of reacting with the first reactant to form a first product; and a reactor. The reactor includes a first element having a wall connecting a first point and a second point, the wall extending more than 180° around the first point; and a second element movably engaged with the first element to define a reconfigurable reaction chamber capable of being in fluid communication with the first and second reactants.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: March 15, 2011
    Assignee: TIAX LLC
    Inventors: Robert S. Weber, Mark Marion, Jayanti Sinha, William Barney
  • Publication number: 20100184946
    Abstract: A process and device for the precipitation of an organic compound comprising the steps: (a) providing a first stream comprising an organic compound and a solvent for the organic compound; (b) providing a second stream comprising an anti-solvent for the organic compound; (c) providing a third stream comprising a second stabilising agent; (d) intermixing the first and second streams to form a precipitate of the organic compound in particulate form; and (e) following step (d), intermixing the third stream with the intermixed first and second streams containing the precipitated organic compound in particulate form wherein the first and/or the second stream comprises a first stabilising agent.
    Type: Application
    Filed: July 17, 2008
    Publication date: July 22, 2010
    Inventor: Huibert Albertus Van Boxtel
  • Patent number: 7666368
    Abstract: The invention provides an apparatus for continuously and efficiently treating volume-reduced polystyrene resin in gel state, thereby removing solvent and recovering resin. A volume-reduced gel-state polystyrene resin is heated in the separation/recovery apparatus under ambient pressure or reduced pressure, for removal of solvent and recovery of resin.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: February 23, 2010
    Assignees: Meishin Kogyo Kabushikigaisha
    Inventors: Shigenobu Hamano, Noriomi Hayashi
  • Patent number: 7507343
    Abstract: The device of the invention includes the following 5 new elements in each mixer-settler: a) agitators with blunt edged turbines, b) decreasing degree of agitation throughout the series of mixing compartments, c) baffle with a central window in the settler interface, located after the flow buffers, and d) baffle without a window, centered in the settler interface, located after the baffle with a window. These elements allow for an operative method which inhibits secondary dispersion, reducing the formation of micro-droplets, without affecting the mass transfer between the phases. Consequently, this obtains a phase separation process with entrainments so small that it is possible to drastically increase the quality of the product, by obtaining an ultra-pure aqueous extract, simultaneously reducing the settling surface required.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 24, 2009
    Assignee: Tecnicas Reunidas S.A.
    Inventors: Daniel Martin San Lorenzo, Gustavo Diaz Nogueira, Maria Frades Tapia
  • Publication number: 20080233238
    Abstract: The present invention provides methods for producing carrot fiber product by contacting carrot feedstock with supercritical carbon dioxide.
    Type: Application
    Filed: February 6, 2008
    Publication date: September 25, 2008
    Applicant: Grimmway Enterprises, Inc.
    Inventors: David Roney, Brian Waibel, Rodger Marentis
  • Patent number: 7390420
    Abstract: The invention relates to a method for controlling and compressing a dispersion formed in the mixing stage of liquid-liquid extraction. The compression of the dispersion is achieved by reducing the cross-section of the separation section in the direction of flow and by equipping the separation section with a dispersion-damming member. The equipment according to the invention thus comprises a settler, which is essentially trapezoid in shape so that its cross-section is wider at the feed end of the settler and gets smaller towards the rear end of the settler, from whence the separated solutions are discharged from the settler, and the settler is equipped with at least one device to dam up the dispersion. In particular the method and equipment relate to the extraction process used in the recovery of metals.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: June 24, 2008
    Assignee: Outotec Oyj
    Inventors: Bror Nyman, Stig-Erik Hultholm, Eero Ekman, Launo Lilja, Juhani Lyyra, Pertti Pekkala, Raimo Kuusisto
  • Patent number: 7235219
    Abstract: There is provided a treatment method of efficiently separating an additive component from a resin component for the purpose of treating and recycling a thermoplastic resin composition containing an additive. The treatment method includes heating and agitating the thermoplastic resin composition containing the additive together with a solvent for dissolving at least part of the additive at a temperature ranging from the glass transition temperature of the thermoplastic resin to the boiling point of the solvent inclusive, and separating and recovering the solvent in a liquid state in which at least part of the additive is dissolved, so that at least part of the additive is separated and removed from the thermoplastic resin composition.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: June 26, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keizo Nakajima, Tetsuji Kawakami, Hiroshi Onishi, Takayoshi Ueno, Takahiko Terada
  • Patent number: 7166260
    Abstract: A reactor containing a plurality of porous rotors is disclosed. A liquid sprayed in a direction from a rotating axis to the rotors is hit by the porous rotors, creating fine liquid particles, so that a mass transfer takes place between the surfaces of the liquid particles and a gas injected into the reactor, and thus a crystallization reaction is initiated. The crystallization reaction is confined by the amounts of the reactants contained in the liquid particles, and will stop as soon as one of the reactants is consumed, so that the resulting crystals can be controlled in nanometer level. The reactor of the present invention is also suitable for use in a liquid-liquid reaction, wherein two different liquids are separately sprayed in a direction from the rotating axis and hit by the porous rotors, and the resulting fine liquid particles of the two different liquids contact and react with each other, so that ultra fine particles are formed.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 23, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Ruey-Fwu Shih, Sheng Yang, Mu-Jen Young, Meng-Zhi Ye
  • Patent number: 7011708
    Abstract: A device includes an agitation tank, a liquid circulation means for circulating a liquid along a tank wall of the agitation tank, and at least one auxiliary heat transfer means provided inside the agitation tank, wherein the auxiliary heat transfer means is constantly put in a wetted state.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: March 14, 2006
    Assignee: Kansai Chemical Engineering Co. Ltd.
    Inventors: Hideo Noda, Hiroshi Ooshima, Takaya Inoue, Hiroaki Ueda
  • Patent number: 6569339
    Abstract: A method and cell for reducing the size of a solvent extraction process in which a series of cells are arranged in an extraction process. The process includes the use of conventional settlers at the beginning and at the end of the extraction process with at least one reduced-size extraction cell in the middle of the extraction process.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: May 27, 2003
    Assignee: Outokumpu Oyj
    Inventors: Hannu Laitala, Sipilä Jussi
  • Patent number: 6458332
    Abstract: The invention provides a crystallization apparatus that includes an agitation tank, a liquid circulation means for circulating a liquid or a slurry along a wall of the agitation tank, and one or more temperature difference creation means capable of creating a temperature difference at the wall of the agitation tank, wherein the temperature difference creation means is installed to the agitation tank. The temperature difference creation means is, for example, arranged at a region where liquid or slurry spouted by rotating the liquid spouting device contacts the wall of the agitation tank or a region below that region, and which increases or decreases the temperature of the spouted liquid or slurry compared to the temperature of surrounding liquid or slurry. Since the apparatus with this configuration has a large vaporization area and a large heat transfer area, the induction period for crystal generation can be shortened, and crystals with narrow size distribution and large size can be obtained.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: October 1, 2002
    Assignee: Kansai Chemical Engineering Co., Ltd.
    Inventors: Hiroshi Ooshima, Hideo Noda
  • Patent number: 6432370
    Abstract: In a method according to the invention, a dispersion coming from a mixer part is conducted from downwards to the liquid part of the settler, into the middle part of the feed end, wherefrom it is set to be distributed to inside the settler part, in a closed channel-like space located in the immediate vicinity of the settler along the whole width of the settler and the flow therefrom mainly above the channel-like part towards the rear end of the settler. The method according to the invention is realized by means of an apparatus where an uptake shaft extending from the dispersion mixing tank to the settler opens into the feed end of the settler, from where there are further directed distribution channels towards the settler side edges. The distribution channels are placed in the bottom part of the settler.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: August 13, 2002
    Assignee: Outokumpu Oyj
    Inventors: Bror Nyman, Launo Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale, Timo Saarenpää
  • Patent number: 6426055
    Abstract: Described is a fragrance control release system which is an emulsifier-free, single phase, nonporous, continuous, permeable polymeric film having a substantially uniform thickness of from about 1 up to about 150 microns, having entrapped and dissolved therein molecules of at least one fragrance substance capable of evolving from said film into the environment proximate said film by means of molecular diffusion at a permeation rate of from about 1×10−7 up to about 0.1 mg-mm/cm2-min in a sustained and controlled release manner. Also described is a process for using the aforementioned system for imparting a fragrance into the environment above the unobstructed outer surface of the aforementioned polymer film which is coated on the surface of a solid or semi-solid support, e.g., a solid surface or human epidermis.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: July 30, 2002
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Adi Shefer, Shmuel David Shefer, John M. Teffenhart
  • Patent number: 6315966
    Abstract: Continuously operated, two-part crystallizer which is particularly suitable for the resolution of racemic mixtures, and process for separating solid mixtures which are difficult to separate, in particular racemates.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: November 13, 2001
    Assignee: Haarmann & Reimer GmbH
    Inventors: Hans-Dieter Baumgard, Bernhard Haedke, Josef Himmelreich, Helmut Judat
  • Patent number: 6251267
    Abstract: An apparatus for supercritical extraction is disclosed herein. The apparatus includes a plurality of containers adapted to hold a different one of a corresponding plurality of samples, a first transport means for carrying the plurality of sample containers, and a second transport means for transporting a selected container from the first transport means to a supercritical extractor. The supercritical extractor includes a heating means having a recess for receiving the selected container, means for passing fluid at a supercritical condition through the selected container, and a receiving means for receiving extractant from the selected container. A programming means is provided to control the first and second transport means.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: June 26, 2001
    Assignee: Isco, Inc.
    Inventors: Robert William Allington, Daniel Gene Jameson, Robin Randall Winter, Dale Lee Clay
  • Patent number: 6048513
    Abstract: This invention is a method for forming hypohalous acid in a mass transfer device. The method comprises: (1) feeding into the device a stream of caustic solution comprising at least one alkali or alkaline earth metal of a hydroxide, oxide, hypohalite, bicarbonate, or carbonate; (2) feeding a stream comprising halogen gas into the device; (3) reacting at least some of the halogen gas with the caustic solution to form a solution containing hypohalous acid; (4) desorbing the hypohalous acid from the solution and into the stream of halogen gas; and (5) removing the stream of halogen gas from the device. In this method, the mass transfer device comprises a porous rotor which is permeable to the streams, and is rotated about an axis such that the streams flow through the rotor and the stream of caustic solution flows radially outward from the axis.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: April 11, 2000
    Assignee: The Dow Chemical Company
    Inventors: George J. Quarderer, David L. Trent, Erik J. Stewart, Danil Tirtowidjojo, Anil J. Mehta, Cheryl A. Tirtowidjojo
  • Patent number: 6042792
    Abstract: Described are controlled, time-release microparticulate active and bioactive compositions (including perfuming compositions) for targeted delivery to services such as skin, hair and fabric and the environment proximate thereto, where the active and bioactive materials have a calculated log.sub.10 P values of between 1 and 8 (P being the n-octanol-water partition coefficient). Such compositions include the active or bioactive material in single phase, solid solution in a wax or polymer matrix also having coated thereon and/or containing a compatible surfactant. Also described are processes and apparatus for preparing such compositions and processes for using same. Furthermore, certain component(s) of the aforementioned compositions in combination with one another are novel, and other components have novel uses in increasing fragrance substantivity.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: March 28, 2000
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Adi Shefer, Keith J. McDermott, Shmuel David Shefer, Chee-Teck Tan
  • Patent number: 5993670
    Abstract: There is provided an apparatus in which a distribution head 6 is arranged in a sludge pipe 1, through which a wastewater or sewage sludge stream 2 flows, is associated with a rotational plane 18 and includes flocculation liquid outlets (10) and mixing blades (11). It is desirable to provide for a better admixing of the flocculant liquid to the wastewater or sewage sludge. This is achieved by forming the flocculant liquid outlets 10 as slots and the mixing blades 11 as strips which extend transverse to the rotational plane 18 and have a length equal to at least half of the width of the sludge stream. The flocculant liquid exits from each slot as a broad strip into which a following blade extends and pulls along its outer edge the flocculant liquid in a form of a foggy strip through the wastewater or sewage sludge. The water content of the flocculant liquid should be such that maximum 3 parts of the flocculant liquid is admixed to 100 parts of the wastewater or sewage sludge.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: November 30, 1999
    Inventor: Joachim Friedrich Knauer
  • Patent number: 5662871
    Abstract: The invention relates to a method for extracting metals from large solution flows in liquid--liquid solvent extraction and to an apparatus for realizing the same. By employing the method and apparatus of the invention, it is possible to choose which phase is maintained continuous at the dispersion stage, while the other phase remains as drops, to prevent the aeration of the organic phase and to pump the phases further at a low circumferential speed in order to prevent emulsification. Another object of the invention is to make the dispersion removed from the settler unit spread in the settler unit over the whole transversal area thereof. The method and apparatus of the invention are particularly well suited to large copper extraction plants.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: September 2, 1997
    Assignee: Outokumpu Engineering Contractors Oy
    Inventors: Bror Nyman, Valto Makitalo, Launo Lilja, Sti-Erik Hultholm, Timo Saarenpaa
  • Patent number: 5628969
    Abstract: The present invention is an apparatus for use in the separation of volatile from non-volatile substances, separation of volatile substances, one from the other, and for performing various chemical reactions and, in particular, to an apparatus which performs these functions utilizing a combination of above ambient temperatures and above one inch of mercury vacuum within a rotating vessel fitted with or without an internal filter through which exiting gases and vapors must pass. Because of the compactness allowed by the present invention, the apparatus can also be configured to operate in a self contained mobile mode.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: May 13, 1997
    Assignee: Mercury Treatment Alternatives, Inc.
    Inventors: Randy Aulbaugh, Gregory G. Hawk
  • Patent number: 5558845
    Abstract: A device for applying an evaporation-inhibiting film to an exposed liquid surface of a liquid body, which includes an impeller disposed below and coplanar with the exposed liquid surface; means for rotating said impeller; means for delivering the evaporation-inhibiting film to the exposed liquid surface at a location immediately above said impeller; and means for bringing liquid from beneath the exposed surface of the liquid body to above said impeller.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: September 24, 1996
    Assignee: Georgia Tech Research Corp.
    Inventors: Michael T. Pauken, Sheldon M. Jeter, Said I. Abdel-Khalik
  • Patent number: 5487876
    Abstract: In a method for the continuous synthesis of vanadium oxide from ammonium metavanadate, ammonium metavanadate is fed to the interior of a dryer apparatus through an inlet opening. The interior of the apparatus is maintained at a temperature of approximately 440.degree. C. and an inert carrier gas flows through the interior of the apparatus. The ammonium metavanadate is conveyed through the interior of the dryer apparatus on a conveyer to an outlet opening over a period of approximately two hours, during which period the ammonium metavanadate is continuously agitated so that it is uniformly exposed to heat and to the carrier gas, thereby synthesizing homogeneous vanadium oxide. The vanadium oxide is continuously removed from the apparatus.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: January 30, 1996
    Inventors: Steven M. Mallinson, Michael E. McAleavey
  • Patent number: 5374672
    Abstract: The invention relates to a method for producing an aqueous asphalt binder emulsion which makes it possible to control the viscosity and breaking properties of the emulsion.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: December 20, 1994
    Assignee: Koch Materials Company
    Inventors: Pierre Chaverot, Francis Demangeon, Regis Vincent
  • Patent number: 5338779
    Abstract: Polymer activation apparatus for activating a batch of dry polymer in dilution water includes a tank which contains the dilution water in a mixing vessel and a mixing assembly within the mixing vessel. The dilution water is circulated at a high rate through the mixing assembly to create a high shear flow condition within the mixing assembly. The polymer is introduced into the mixing assembly to disperse the polymer in the dilution water and form a slurry in the vessel without causing agglomeration of the dry polymer. After dispersion and before hydration of the polymer, the rate of circulation through the mixing assembly is reduced to create a low shear flow condition. The low shear condition is maintained as the viscosity of the solution increases.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: August 16, 1994
    Assignee: Stranco, Inc
    Inventor: Carl L. Brazelton
  • Patent number: 5290433
    Abstract: The washer comprises an open-topped vessel having a tube mounted vertically and centrally therein. Post-primary bitumen froth is fed to the upper end of the tube. Pairs of down throw and up throw propellers mounted to rotate in the tube act to shear the froth as it passes down through the tube. At its lower end, the tube is closed off by a transverse wall. Slots are formed in the tube side wall to provide an exit. The sheared mixture thus changes direction as it leaves the tube. In the vessel chamber, solids and water sink downwardly and are removed as tailings through a bottom outlet. The sheared aerated bitumen rises and forms a new forth that is recovered in a launder. Middlings are withdrawn from the chamber and recycled to join the feed. The product froth is reduced in water and solids relative to the feed froth.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: March 1, 1994
    Assignees: Alberta Energy Company Ltd., Canadian Occidental Petroleum Ltd., Esso Resources Canada Limited, Gulf Canada Resources Limited, Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources, HBOG-Oil Sands Limited Partnership, PanCanadian Petroleum Limited, Petro-Canada Inc.
    Inventors: Edward Wing-Kee Chan, Robert B. Stovall
  • Patent number: 5267936
    Abstract: Multi-Stage centrifugal extractors for separating two liquids of differing densities wherein each stage includes a decantation chamber which surrounds and receives liquids from a mixing chamber and wherein a portion of at least one of the separated liquids is recycled from the decantation chamber to the mixing chamber at each stage.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: December 7, 1993
    Assignee: Societe Robatel
    Inventor: Jean-Paul A. Miachon
  • Patent number: 5254076
    Abstract: A method for mixing and separating immiscible liquid salts and liquid metals in a centrifugal contractor. The method includes introducing the liquids into an annular mixing zone and intensely mixing the liquids using vertical vanes attached to a rotor cooperating with vertical baffles, a horizontal baffle, and bottom vanes attached to the contactor housing. The liquids enter the contactor in the range of 700-800 degrees Celsius. The liquids are separated in the rotor into a dense phase and a light phase which are discharged from the contactor.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: October 19, 1993
    Assignee: ARCH Development Corporation
    Inventors: Lorac S. Chow, Ralph A. Leonard
  • Patent number: 5254244
    Abstract: A mixer-settler is provided which is modulatable and permits use, manipulation and maintenance within a tight, shielded enclosure using a telemanipulator. The mixer-settler is constituted by several modules (M1, M2, M3), which can be reciprocally dismantled by using tight connecting means (19, 20, 21). The inlets and outlets (17, 18) for the heavy and light phases are located on the front face (40) of each module. Regulating members (9, 10, 11) issue onto the upper surface of each module close to the front face (40). Preferably, shield windows (12) make it possible in each case to see the interphase of a stage comprising a mixing chamber (1) and a settling chamber (2). This is completed by a motorization assembly (3) placed above the module. Application to the treatment of radioactive liquids.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: October 19, 1993
    Assignee: Cogema Compagnie Generale des Matieres Nucleaires
    Inventor: Rodolph Chomel
  • Patent number: 5188808
    Abstract: The invention relates to a method for maintaining a continuous mixing extending throughout the transversal section of the reactor space in a liquid containing solids and gas, and for simultaneously separating gas or gas and solids from the liquid. The invention also relates to an apparatus whereby the mixing is maintained, and simultaneously at least one phase is removed from the liquid under agitation. In a particularly advantageous fashion the method and apparatus of the present invention are suited for the stirring of bioreactors, as well as to removing gas and solids from the said reactors.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: February 23, 1993
    Assignee: Outokumpu Oy
    Inventors: Launo L. Lilja, Valto J. Makitalo, Stig-Erik Hultholm, Bror G. Nyman
  • Patent number: 5185081
    Abstract: A method and apparatus for mixing two different phases in a liquid-liquid extraction process and for separating the phases employs a spiral stirrer having two tubular coils for creating homogeneous circulation throughout a mixer. The stirrer rotates at a relatively slow speed to create an upward flow from bottom to top of the mixer near the mixer periphery and a downward flow in the middle of the mixer. The mixer has a flow reversing profile ring and is designed to prevent aeration and formation of an emulsion.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: February 9, 1993
    Assignee: Outokumpu Oy
    Inventors: Bror G. Nyman, Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo
  • Patent number: 5182087
    Abstract: The invention relates to a method for maintaining a continuous mixing in a liquid throughout the transversal reactor space, and for simultaneously separating from the liquid either another liquid, a solid material or possibly gas. The invention also relates to an apparatus whereby the mixing is maintained and simultaneously another phase is separated from the liquid under agitation.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: January 26, 1993
    Assignee: Outokumpu Oy
    Inventors: Launo L. Lilja, Valto J. Makitalo, Stig-Erik Hultholm, Bror G. Nyman
  • Patent number: 5160623
    Abstract: A process and apparatus for effecting liquid-liquid contact in a plurality of stages between heavy and light liquid streams is provided wherein said streams are capable of undergoing mass transfer with one another or constituents in either stream are capable of reaction therebetween and where either of said streams can be intercirculated or intracirculated through each stage.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: November 3, 1992
    Assignee: Stone & Webster Engineering Corp.
    Inventor: Jacob N. Rubin
  • Patent number: 5154891
    Abstract: The laboratory apparatus is used for separating gaseous, liquid and solid substances from gas samples (for example air) to be trace analyzed. It comprises a vessel and a mixer insert with nozzles. The gas fed into the mixer insert emerges from the nozzles at high speed into an absorption liquid held in the vessel so that intensive mixing and hence high absorption of the substances takes place. After passing through the liquid the gas leaves the vessel via an outlet. The substances absorbed in the liquid are available for analysis.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 13, 1992
    Inventor: Karl S. Brenner
  • Patent number: 5104524
    Abstract: The invention is directed to an apparatus for washing a solvent in the recessing of irradiated nuclear fuel. The solvent is washed with an aqueous solution in a mixer-settler having at least one stage which includes a mixing chamber and a settling chamber. The pH is measured by a sensor adjacent stirring means in the mixing chamber and is coupled to a controller controlling metering of the washing solution. The pH of the dispersion in the mixing chamber is measured and an amount of washing solution is added which influences the pH toward the desired operational value. Various recycling means and weir overflow means also influence pH control and the washing operation.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: April 14, 1992
    Assignee: Deutsche Gesellschaft fur Wiederaufarbeitung von Kernbrennstoffen GmbH
    Inventors: Klaus Eiben, Heinz Evers