Method Of Making Including Comminuting Of Solid Material (e.g., Grinding, Crushing, Etc.) Patents (Class 502/151)
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Patent number: 12208373Abstract: Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.Type: GrantFiled: April 19, 2023Date of Patent: January 28, 2025Assignee: NOVA Chemicals (International) S.A.Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Sullivan, Yipei Styles, Yoonhee Kim, Hanna Drag, Marie Barnes
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Patent number: 12076714Abstract: The present disclosure relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present disclosure includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.Type: GrantFiled: September 28, 2020Date of Patent: September 3, 2024Assignee: LG Chem, Ltd.Inventors: Kyung Min Min, Seung Young Park, Sung Kyoung Kim, Sang Cheol Shin, Won Seok Kim, Won Hee Woo
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Patent number: 10892387Abstract: A lighting device comprises a light-emitting module with light-emitting elements, wherein the light-emitting elements are arranged adjacent to each other and are configured to emit light towards a light-emitting side. The light-emitting module is configured such that the light-emitting elements can be addressed partially independently of each other, such that some may be brought into a switched-on state while others are brought into a switched-off state. A top layer is disposed on the light-emitting module at the light-emitting side. Further comprising a switching material capable of a reversible change in transmittance for the light emitted by changing to a higher transmittance in regions where the top layer situated on light-emitting elements in the switched-on state or to a lower transmittance in regions of the top layer situated in the switched-off state. The invention further refers to methods for producing and operating a lighting device and using a lighting device.Type: GrantFiled: December 20, 2018Date of Patent: January 12, 2021Assignee: Lumileds, LLCInventors: Nicola Bettina Pfeffer, Arjen Van Der Sijde, Marcel Bohmer
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Patent number: 9861515Abstract: Methods for the synthesis and use of several variations of styrene maleic acid-based polymers and the hydrogel tissue bridges that can be formed from such polymers. Specifically, a method is disclosed for synthesizing a styrene maleic acid-based polymer that can be dissolved in DMSO and injected into the vasa deferentia of male subjects, creating a hydrogel tissue bridge. This hydrogel tissue bridge can occlude the vas deferens, thus forming an effective male contraceptive. Additionally, this male contraceptive can be reversed by injecting the lumen of the vas deferens with a basic buffer solution to dissolve and remove the hydrogel tissue bridge.Type: GrantFiled: October 17, 2014Date of Patent: January 9, 2018Assignee: Revolution Contraceptives LLCInventors: Jeffrey T. DePinto, David A. Templer, Antonina A. Nikitenko, Gary Gamerman, Donald P. Waller, David Bolick, Elaine Lissner
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Patent number: 9815222Abstract: A process for the preparation of a metal-organic compound, said metal-organic compound comprising at least one metal ion and at least one organic ligand, wherein said organic ligand is capable of associating with said metal ion, comprising at least the steps of; providing a first reactant comprising at least one metal in ionic form; providing a second reactant comprising at least one organic ligand capable of associating with said metal in ionic form; and admixing said first and second reactants under conditions of prolonged and sustained pressure and shear sufficient to synthesize said metal-organic compound.Type: GrantFiled: May 27, 2014Date of Patent: November 14, 2017Assignee: The Queen's University of BelfastInventors: Stuart James, Tony McNally, Robert Haydon
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Patent number: 9018124Abstract: An improved process for preparing a slurry catalyst for the upgrade of heavy oil feedstock is provided. The process employs a polar aprotic solvent to mix with the inorganic metal precursor feed to form an oil-dispersible inorganic metal precursor, at a weight ratio of solvent to inorganic metal precursor of 1:1 to 10:1; the oil-dispersible inorganic metal precursor is subsequently sulfided forming the slurry catalyst. In one embodiment, the sulfiding is in-situ upon mixing the oil-dispersible inorganic metal precursor with a hydrocarbon diluent containing a heavy oil feedstock under in-situ sulfiding conditions.Type: GrantFiled: December 20, 2011Date of Patent: April 28, 2015Assignee: Chevron U.S.A. Inc.Inventors: Oleg Mironov, Alexander E. Kuperman
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Patent number: 8993470Abstract: Organometallic compounds of the general formula (I), in which M=Mo, W, are claimed.Type: GrantFiled: March 31, 2011Date of Patent: March 31, 2015Assignee: Studiengesellschaft Kohle mbHInventors: Alois Fuerstner, Johannes Heppekausen, Volker Hickmann, Robert Stade
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Patent number: 8932371Abstract: A process is disclosed for preparing fluidizable particles of a biomass/catalyst composite material. The process comprises the steps of (i) providing a particulate, solid biomass material; (ii) forming a composite of the biomass material and a catalytic material; (iii) subjecting the biomass material to a thermal treatment at a torrefaction temperature at or above 200° C., and low enough to avoid significant conversion of the biomass material to liquid conversion products; and (iv) forming fluidizable particles from the biomass material. Step (ii) may be carried out before or after step (iii).Type: GrantFiled: December 10, 2009Date of Patent: January 13, 2015Assignee: KiOR, Inc.Inventors: Robert Bartek, Dennis Stamires, Michael Brady
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Patent number: 8846996Abstract: The present invention provides a process for the manufacture of an efficient and robust catalyst for the oxidative dehydrogenation of paraffins to olefins, preferably lower C2-4 paraffins. The present invention provides a process for the preparation of an oxidative dehydrogenation catalyst of C2-4 paraffins to olefins comprising comminuting: from 10 to 99 weight % of a mixed oxide catalyst of the formula VxMoyNbzTemMenOp, wherein Me is a metal selected from the group consisting of Ta, Ti, W, Hf, Zr, Sb and mixtures thereof; with from 90 to 1 weight % of an inert matrix selected from oxides of titanium, zirconia, aluminum, magnesium, yttria, lantana, silica and their mixed compositions or a carbon matrix to produce particles having a size from 1 to 100 microns and forming the resulting particles into pellets having a size from 0.1 to 2 mm.Type: GrantFiled: February 22, 2010Date of Patent: September 30, 2014Assignee: Nova Chemicals (International) S.A.Inventors: Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina, Tatyana Nikolaevna Kucherova, Vera Ilynichna Isaeva, Andrzej Krzywicki, Haiyong Cai
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Patent number: 8697597Abstract: A method and system for the reduction of pollutant NOx gases from automobile exhaust, as well as a method of reforming hydrocarbons, using a self-sustaining catalyst comprising an ion conductive support, a dispersed cathodic phase, a dispersed anodic phase, and a dispersed sacrificial phase, and a method of forming the self-sustaining catalyst.Type: GrantFiled: April 6, 2010Date of Patent: April 15, 2014Assignee: University of MiamiInventor: Xiangyang Zhou
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Publication number: 20140081059Abstract: Disclosed herein is an external, fixed bed, agglomerated nano catalyst of the general formula; AxByOz.Qn.(OH)m where, ‘A’ represents transition element ‘B’ represents rare earth elements including the lanthanide series, and actinide series either alone or mixture thereof in metallic or oxide or as hydroxides; ‘Q’ represents montmorillonate clay or its derivatives; and optionally along with an organic binder; for conversion of various homogeneous and heterogeneous waste material into useful hydrocarbon fuel as oil, gas and as solid carbon.Type: ApplicationFiled: November 20, 2013Publication date: March 20, 2014Inventor: Raghavendra Rao TURLAPATI
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Publication number: 20140056992Abstract: A method for preparing suspension of inorganic nanoparticles is described herein. The method includes mixing a dispersing medium (102) with a dispersant (104) and a metal oxide powder (106) to form a primary mixture (110), the dispersant (104) being selected based on interaction energy of the dispersant (104) with respect to the dispersing medium (102) and the metal oxide powder (106). The method further includes grinding the primary mixture (110) to obtain a suspension (116), wherein at least the dispersant (104) is added to the primary mixture (110) during the grinding after predetermined time intervals.Type: ApplicationFiled: August 25, 2011Publication date: February 27, 2014Applicant: TATA CONSULTANCY SERVICES LIMITEDInventors: Beena Rai, Pradip .
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Patent number: 8618013Abstract: A method for forming a coating on an ionic liquid includes placing an ionic liquid on a surface of a substrate, thereby forming an ionic liquid coated substrate. The ionic liquid coated substrate is introduced into a physical deposition chamber having a physical deposition target. One or more materials are directed from the physical deposition target onto the ionic liquid of the ionic liquid coated substrate by physical vapor deposition to form a coating on the ionic liquid of the ionic liquid coated substrate.Type: GrantFiled: January 14, 2013Date of Patent: December 31, 2013Assignee: PPG Industries Ohio, Inc.Inventor: James J. Finley
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Patent number: 8466285Abstract: A process for the preparation of a multi-dimensional microporous metal-organic compound comprising the steps of providing a first reactant which includes at least one metal in ionic form, providing a second reactant which includes a bridging organic ligand, grinding the first and second reactants together, wholly or substantially in the absence of solvent.Type: GrantFiled: August 25, 2006Date of Patent: June 18, 2013Assignee: The Queen's University of BelfastInventors: Stuart Lloyd James, Ana Lazuen-Garay, Anne Pichon
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Publication number: 20130149213Abstract: One exemplary embodiment can be a process for making a catalyst including an effective amount of iron for catalyzing one or more reactions in a hydrocarbon conversion system. The process can include grinding and coating the particles. The ground particles can have an effective amount of iron, and substantially all the particles may have a maximum dimension no larger than about 130 microns. The coating can have an effective amount of one or more hydrocarbons to provide the catalyst with improved flowability.Type: ApplicationFiled: February 8, 2013Publication date: June 13, 2013Applicant: UOP LLCInventor: UOP LLC
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Patent number: 8410010Abstract: The present disclosure relates to a process for the production of a base complex catalyst comprising reacting a hydroxide base with a polyalcohol, under vacuum pressure, at a temperature in the range of about 60° C. to about 220° C., wherein the mole ratio of the hydroxide base to the polyalcohol is greater than about 2:1.Type: GrantFiled: December 1, 2008Date of Patent: April 2, 2013Assignee: University of SaskatchewanInventors: Martin J. T. Reaney, Jianheng Shen, Douglas W. Soveran
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Publication number: 20130059725Abstract: This invention concerns a new material with enhanced catalytic properties, produced by mechanical alloying of microbially encapsulated metallic (or zerovalent) nanoparticles with a second metallic component. The bioencapsulation ensures a maximized contact area for molecular restructuring, since the microbial biomass can prevent agglomeration during the mechanical alloying process. The resulting product is a metallic alloy with at least 1% of the material dry weight comprising microbial biomass and with enhanced catalytic properties.Type: ApplicationFiled: May 9, 2011Publication date: March 7, 2013Applicant: BIOREM ENGINEERING SARLInventors: Frederic Lakaye, Wim De Windt
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Patent number: 8372773Abstract: One exemplary embodiment can be a process for making a catalyst including an effective amount of iron for catalyzing one or more reactions in a hydrocarbon conversion system. The process can include grinding and coating the particles. The ground particles can have an effective amount of iron, and substantially all the particles may have a maximum dimension no larger than about 130 microns. The coating can have an effective amount of one or more hydrocarbons to provide the catalyst with improved flowability.Type: GrantFiled: March 27, 2009Date of Patent: February 12, 2013Assignee: UOP LLCInventors: Lorenz J. Bauer, James F. McGehee
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Patent number: 8354355Abstract: A method is provided for producing particles, such as nanoparticles. The method includes introducing an ionic liquid into a deposition chamber, and directing one or more material toward or depositing one or more materials onto the ionic liquid by physical vapor deposition to form nanoparticles in the ionic liquid.Type: GrantFiled: January 17, 2007Date of Patent: January 15, 2013Assignee: PPG Industries Ohio, Inc.Inventor: James J. Finley
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Patent number: 8293675Abstract: The invention relates to a process for producing a catalyst comprising a metal of the platinum group and a second metal selected from among the metals of the platinum group or the transition metals, in which a catalyst comprising the metal of the platinum group is mixed with a complex comprising the second metal to give a dry powder in a first step and the powder is subsequently heat treated to form a compound between the metal of the platinum group and the second metal. The invention further relates to the use of the catalyst produced according to the invention.Type: GrantFiled: November 6, 2008Date of Patent: October 23, 2012Assignee: BASF SEInventors: Stefan Kotrel, Gerhard Cox, Ekkehard Schwab, Alexander Panchenko
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Publication number: 20120115064Abstract: It is an object of the present invention to provide a production process which can produce a fuel cell catalyst having excellent durability and high oxygen reducing activity. The process for producing a fuel cell catalyst including a metal-containing oxycarbonitride of the present invention includes a grinding step for grinding the oxycarbonitride using a ball mill, wherein the metal-containing oxycarbonitride is represented by a specific compositional formula; balls in the ball mill have a diameter of 0.1 to 1.0 mm; the grinding time using the ball mill is 1 to 45 minutes; the rotating centrifugal acceleration in grinding using the ball mill is 2 to 20 G; the grinding using the ball mill is carried out in such a state that the metal-containing oxycarbonitride is mixed with a solvent containing no oxygen atom in the molecule; and when the ball mill is a planetary ball mill, the orbital centrifugal acceleration mill is 5 to 50 G.Type: ApplicationFiled: July 14, 2010Publication date: May 10, 2012Applicant: SHOWA DENKO K.K.Inventors: Yasuaki Wakizaka, Ryuji Monden, Toshikazu Shishikura, Takuya Imai, Kenichiro Ota
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Publication number: 20120064787Abstract: A method is disclosed of producing stable nanosized colloidal suspensions of particles with limited crystallinity loss, products thereof, use of the products and an apparatus for the method. In particular the present invention relates to a wet milling method with small beads wherein the size of the final particles in suspension are stabilized in the nanorange (D50<75 nm) and at the same time the particles substantially maintain the crystallinity.Type: ApplicationFiled: March 22, 2010Publication date: March 15, 2012Applicant: VALINGE PHOTOCATALYTIC ABInventors: Steen Brummerstedt Iversen, Hans Rasmussen, Christian Ausig Christensen, Henrik Jensen, Theis Reenberg
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Publication number: 20120060408Abstract: A process is disclosed for preparing fluidizable particles of a biomass/catalyst composite material. The process comprises the steps of (i) providing a particulate, solid biomass material; (ii) forming a composite of the biomass material and a catalytic material; (iii) subjecting the biomass material to a thermal treatment at a torrefaction temperature at or above 200° C., and low enough to avoid significant conversion of the biomass material to liquid conversion products; and (iv) forming fluidizable particles from the biomass material. Step (ii) may be carried out before or after step (iii).Type: ApplicationFiled: December 10, 2009Publication date: March 15, 2012Applicant: KIOR INC.Inventors: Robert Bartek, Dennis Stamires, Michael Brady
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Publication number: 20120027670Abstract: A method and system for the reduction of pollutant NOx gases from automobile exhaust, as well as a method of reforming hydrocarbons, using a self-sustaining catalyst comprising an ion conductive support, a dispersed cathodic phase, a dispersed anodic phase, and a dispersed sacrificial phase, and a method of forming the self-sustaining catalyst.Type: ApplicationFiled: April 6, 2010Publication date: February 2, 2012Applicant: University of MiamiInventor: Xiangyang Zhou
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Patent number: 8039414Abstract: A method for preparing a metal catalyst includes a proton conductive material coating layer formed on the surface of a conductive material. Also, an electrode may be prepared using the metal catalyst. The method for preparing the metal catalyst comprises mixing the conductive catalyst material, the proton conductive material, and a first solvent, casting the mixture onto a supporting layer and drying the mixture to form a conductive catalyst containing film. The method further comprises separating the conductive catalyst containing film from the supporting layer and pulverizing the conductive catalyst containing film to obtain the metal catalyst. The method for preparing the electrode comprises mixing the metal catalyst with a hydrophobic binder and a second solvent, coating the mixture on an electrode support, and drying it.Type: GrantFiled: November 21, 2005Date of Patent: October 18, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Suk-gi Hong, Tao-young Kim, Duck-young Yoo
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Patent number: 7932206Abstract: Solid Lewis adducts comprising MgCl2, a Lewis base (LB) belonging to ethers, esters, ketones, silanes or amines and an alcohol ROH, in which R is a C1-C15 hydrocarbon group optionally substituted with heteroatoms containing groups, which compounds are in molar ratios to each other defined by the following formula MgCl2(ROH)m(LB)n in which m ranges from 0.05 to 6, n ranges from 0.08 to 6. The solid Lewis adducts herein can be used to prepare catalysts having good morphological stability, and high polymerization activity.Type: GrantFiled: November 25, 2003Date of Patent: April 26, 2011Assignee: Basell Poliolefine Italia S.p.A.Inventors: Diego Brita, Andrea Casalini, Daniele Evangelisti, Ofelia Fusco, Gianni Collina
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Patent number: 7932209Abstract: Disclosed are a liquid heating element and a method for production thereof, and more particularly a solid ingredient A, a liquid ingredient B produced from the solid ingredient A, a liquid heating element produced from the liquid ingredient B and a method for producing the liquid heating element. The solid ingredient is produced by heating activated carbon, kaolin, copper sulfide and phosphoric acid (H3PO4) to a temperature ranging from 1,000 to 1,200° C. The liquid ingredient H is produced by mixing the solid ingredient A with silicon powder and distilled water and heating the mixture. The liquid heating element is produced by mixing the liquid ingredient B with ethylene glycol, leaving the mixture and then filtering the mixture. Since the liquid heating element is very stable and generates heat with minimum power consumption, it can be applied to various heat management systems.Type: GrantFiled: November 7, 2003Date of Patent: April 26, 2011Inventor: Dong-Soon Kwon
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Patent number: 7919424Abstract: Disclosed herein are a platinum-based catalyst for oxidation/reduction reactions and the use thereof. The platinum-based catalyst is prepared by loading a catalyst composition comprising a water soluble salt of at least one metal selected from among cerium (Ce), zirconium (Zr) and rhenium (Re), on a support comprising at least one selected from among alumina, silica and titania. The disclosed catalyst can be prepared in a simple manner without any particular limitation as to the kind of usable water soluble platinum salt, and when it is applied to various oxidation reactions, including water gas shift reactions of carbon monoxide, three-way catalytic reactions, and selective oxidation reactions of carbon monoxide, and to reduction reactions, such as reactions of removing nitrogen oxide (NOx), it will show excellent catalytic activity.Type: GrantFiled: July 30, 2009Date of Patent: April 5, 2011Assignee: SK Energy Co., Ltd.Inventors: Byong Sung Kwak, Young Seek Yoon, Jin Hong Kim, Mee Sook Lim
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Publication number: 20100248946Abstract: One exemplary embodiment can be a process for making a catalyst including an effective amount of iron for catalyzing one or more reactions in a hydrocarbon conversion system. The process can include grinding and coating the particles. The ground particles can have an effective amount of iron, and substantially all the particles may have a maximum dimension no larger than about 130 microns. The coating can have an effective amount of one or more hydrocarbons to provide the catalyst with improved flowability.Type: ApplicationFiled: March 27, 2009Publication date: September 30, 2010Inventors: Lorenz J. Bauer, James F. McGehee
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Patent number: 7754642Abstract: Disclosed are a hydrophobic oil-adsorbent material that is capable of adsorbing oil and separating oil from water and methods for production and application of said material, suitable for collecting and removing hydrocarbons and other contaminations of oil content from solid surfaces and water.Type: GrantFiled: March 2, 2007Date of Patent: July 13, 2010Assignee: Sineol Hungary KFT.Inventor: János Kátay
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Patent number: 7754641Abstract: Disclosed herein is a composition comprising a complex hydride and a borohydride catalyst wherein the borohydride catalyst comprises a BH4 group, and a group IV metal, a group V metal, or a combination of a group IV and a group V metal. Also disclosed herein are methods of making the composition.Type: GrantFiled: February 14, 2008Date of Patent: July 13, 2010Assignee: General Electric CompanyInventors: Grigorii Lev Soloveichik, Matthew John Andrus
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Publication number: 20100004120Abstract: Disclosed herein are a platinum-based catalyst for oxidation/reduction reactions and the use thereof. The platinum-based catalyst is prepared by loading a catalyst composition comprising a water soluble salt of at least one metal selected from among cerium (Ce), zirconium (Zr) and rhenium (Re), on a support comprising at least one selected from among alumina, silica and titania. The disclosed catalyst can be prepared in a simple manner without any particular limitation as to the kind of usable water soluble platinum salt, and when it is applied to various oxidation reactions, including water gas shift reactions of carbon monoxide, three-way catalytic reactions, and selective oxidation reactions of carbon monoxide, and to reduction reactions, such as reactions of removing nitrogen oxide (NOx), it will show excellent catalytic activity.Type: ApplicationFiled: July 30, 2009Publication date: January 7, 2010Applicant: SK Energy Co., Ltd.Inventors: Byong Sung Kwak, Young Seek Yoon, Jin Kim Kim, Mee Sook Lim
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Publication number: 20090209409Abstract: Disclosed herein is a composition comprising a complex hydride and a borohydride catalyst wherein the borohydride catalyst comprises a BH4 group, and a group IV metal, a group V metal, or a combination of a group IV and a group V metal. Also disclosed herein are methods of making the composition.Type: ApplicationFiled: February 14, 2008Publication date: August 20, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Grigorii Lev Soloveichik, Matthew John Andrus
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Publication number: 20090202883Abstract: Catalyst-polymer liquid dispersion (LD) comprising (i) catalyst particles, (ii) polymer particles consisting of at least one (per)fluoro sulfonyl fluoride polymer in the —SO2F form, and (iii) an aqueous suspending medium. Catalyst coated membrane precursor (CCMP), catalyst coated membrane (CCM) and catalytic ionomeric ink (CII) derived therefrom and methods for their manufacture. Catalyst coated membrane (CCM-CII) derived from said (CII).Type: ApplicationFiled: June 25, 2007Publication date: August 13, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Alessandro Ghielmi, Luca Merlo, Gilberto Nucida, Vincenzo Arcella
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Publication number: 20090149319Abstract: To provide a production process of an oxidation catalyst apparatus for purifying an exhaust gas which enables to oxidize and purify particulate matter in the exhaust gas of an internal combustion engine at a lower temperature. The production process of the oxidation catalyst apparatus 1 for purifying an exhaust gas comprises a step of burning a plurality of metal compounds to obtain a burnt product, a step of mixing and grinding the obtained burnt product with water and a binder which is a sol comprising zirconia to prepare a slurry, a step of applying the slurry to a porous filter base material 2, and a step of burning the porous filter base material 2 to form a porous catalyst layer 3 supported on the porous filter base material 2. The porous catalyst layer 3 has a thickness in a range of 10 to 150 ?m and fine pores having a diameter in a range of 0.01 to 5 ?m, the total porosity of and the porous filter base material 2 and the porous catalyst layer 3 have a porosity of 35 to 70% as a whole.Type: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Inventors: Kiyoshi Tanaami, Yuji Isogai
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Publication number: 20080274878Abstract: Disclosed herein are a platinum-based catalyst for oxidation/reduction reactions and the use thereof. The platinum-based catalyst is prepared by loading a catalyst composition comprising a water-soluble salt of at least one metal selected from among cerium (Ce), zirconium (Zr) and rhenium (Re), on a support comprising at least one selected from among alumina, silica and titania. The disclosed catalyst can be prepared in a simple manner without any particular limitation as to the kind of usable water-soluble platinum salt, and when it is applied to various oxidation reactions, including water gas shift reactions of carbon monoxide, three-way catalytic reactions, and selective oxidation reactions of carbon monoxide, and to reduction reactions, such as reactions of removing nitrogen oxide (NOx), it will show excellent catalytic activity.Type: ApplicationFiled: November 29, 2006Publication date: November 6, 2008Applicant: Sk Energy Co. LtdInventors: Byong Sung Kwak, Young Seek Yoon, Jin Hong Kim, Mee Sook Lim
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Patent number: 7425520Abstract: A supported catalyst for hydrogenating nitro groups of halonitro compounds manufactured from a support, a solvent, and one or more types of organometallic complexes. The organometallic complexes have the formula: wherein, R1-R6 are independently an R, OR, OC(?O)R, halogen, or combination thereof, where R stands for an alkyl or aryl group; Y1-Y4 are independently an O, S, N, or P atom; and M is a metal atom. The supported catalysts show much higher selectivity and activity when used to hydrogenate nitro groups on halonitro aromatic compounds than catalyst currently being used for such hydrogenation.Type: GrantFiled: June 18, 2007Date of Patent: September 16, 2008Assignee: Headwaters Technology Innovation, LLCInventors: Changkun Liu, Bing Zhou
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Patent number: 7307113Abstract: The present invention provides for a composition and a process for forming the composition. The composition comprises an organic polymer and 0.Type: GrantFiled: May 14, 2001Date of Patent: December 11, 2007Assignee: E.I. du Pont de Nemours and CompanyInventor: Zhenyu Yang
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Catalyst for the synthesis of dimethyl carbonate from urea and methanol, preparation and use thereof
Patent number: 7271120Abstract: A catalyst for the preparation of dimethyl carbonate from urea and methanol having a composition on weight base of: active component of from 20 to 50 wt %, and carrier of from 80 to 50 wt %, and prepared by equal-volume spraying and impregnating method is disclosed. The method for the synthesis of dimethyl carbonate can be carried out in a catalytic rectification reactor, said method comprising: (1) dissolving urea in methanol to form a methanol solution of urea; and (2) feeding the methanol solution of urea and methanol counter-currently into the reaction zone, wherein the reaction is carried out at conditions including reaction temperature of from 120° C. to 250° C., reaction pressure of from 0.1 MPa to 5 MPa, kettle bottom temperature of from 70° C. to 210° C., stripping section temperature of from 70° C. to 250° C., rectifying section temperature of from 70° C. to 280° C., and reflux ratio of from 1:1 to 20:1.Type: GrantFiled: August 22, 2005Date of Patent: September 18, 2007Assignees: Institute of Coal Chemistry, Chinese Academy of Sciences, Feicheng Acid Chemicals Co., Ltd.Inventors: Yuhan Sun, Wei Wei, Ning Zhao, Baoyuan Sun, Bingsheng Zhang, Yanjun Chen -
Patent number: 7261872Abstract: A method of producing nano metal fluoride powders comprising the steps of mixing an aqueous or organic continuous phase comprising at least one metal cation salt with a hydrophilic or organic polymeric disperse phase forming a metal cation salt/polymer gel and then treating said gel with anhydrous hydrofluoric acid to convert said metal cation salt to metal cation fluoride and heat treating the gel at a temperature sufficient to drive off water and/or organics within the gel, leaving a residue of nano-size metal fluoride powder.Type: GrantFiled: September 15, 2003Date of Patent: August 28, 2007Assignee: Platinum Intellectual Property, LPInventor: F. Conrad Greer
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Patent number: 7259122Abstract: A shelter coating comprising polyvinyl alcohol and polyethyleneimine is disclosed. The shelter coating may optionally further include a photocatalyst capable of generating singlet oxygen from ambient air. The shelter coating may optionally include a singlet oxygen scavenger.Type: GrantFiled: August 30, 2004Date of Patent: August 21, 2007Inventor: John Lombardi
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Patent number: 7208642Abstract: A production process and a catalyst are provided, which can be less decreased in activity of the catalyst even when CO2, water and the like are present in the starting material and/or the reaction system, and which can produce a formic ester or a methanol at a low temperature and a low pressure. The present invention relates to a process for producing methanol, comprising reacting carbon monoxide with an alcohol in the presence of an alkali metal-type catalyst, and/or an alkaline earth metal-type catalyst to produce a formic ester, wherein a hydrogenolysis catalyst of formic ester and hydrogen are allowed to be present together in the reaction system to hydrogenate the produced formic ester and thereby obtain a methanol.Type: GrantFiled: February 23, 2001Date of Patent: April 24, 2007Assignee: Nippon Steel CorporationInventors: Kaoru Fujimoto, Noritatsu Tsubaki, Kenichiro Fujimoto
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Patent number: 7148317Abstract: Disclosed is a method of preparing a catalyst for polymerization of an aliphatic polycarbonate including oxidizing a dicarboxylic acid precursor and a zinc precursor under a pressurized condition, and a method for polymerizing the aliphatic polycarbonate.Type: GrantFiled: June 19, 2003Date of Patent: December 12, 2006Assignees: Posco, Postech FoundationInventors: Seung-Jae Moon, Moon-Hor Ree, Jong-Sung Kim, Kie-Soo Kim
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Patent number: 7049262Abstract: The present invention provides a method of preparing a supported catalyst from a liquid catalyst system dispersed on a solid carrier. The method of this embodiment comprises freezing the liquid catalyst system in a non-reactive liquid to form a frozen catalyst system dispersed within the non-reactive liquid. The frozen catalyst system is then contacted with a solid carrier. Finally, the non-reactive liquid is removed to yield the supported catalyst. In another embodiment, a supported catalyst made by the methods of the present invention is provided.Type: GrantFiled: October 20, 2003Date of Patent: May 23, 2006Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Kenneth W. Johnson
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Patent number: 6893564Abstract: The present invention relates to a novel class of shaped bodies containing metal-organic frameworks. Said metal-organic frameworks comprise at least one metal ion and at least one at least bidentate organic compound and contain at least one type of micro- and mesopores or micro- or mesopores. Said shaped bodies comprise at least one metal-organic framework material and may optionally contain further substances, in particular at least one supporting material.Type: GrantFiled: May 30, 2002Date of Patent: May 17, 2005Assignees: BASF Aktiengesellschaft, The Regents of the University of MichiganInventors: Ulrich Mueller, Lisa Lobree, Michael Hesse, Omar Yaghi, Mohamed Eddaoudi
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Patent number: 6844287Abstract: The present invention provides a process for preparing supported zinc dicarboxylate catalysts with high activity for the copolymerization of carbon dioxide and epoxides by supporting zinc dicarboxylate on silica support. The zinc dicarboxylate may be synthesized from zinc oxide and dicarboxylic acid such as succinic acid, glutaric acid, adipic acid, pimelic acid and suberic acid. The silica support can be selected from the group consisting of aerosil, silica gel for chromatography or reagent grade silicon dioxide. The supporting process is performed in a planetary ball grinder under vacuum.Type: GrantFiled: December 13, 2002Date of Patent: January 18, 2005Assignee: Guangzhou Institute of Chemistry, Chinese Academy of SciencesInventors: Yuezhong Meng, Quan Zhu, Shizhen Zhang, Xiuhua Li, Longchao Du
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Patent number: 6828396Abstract: There are provided: (I) a solid catalyst component (A-1) for olefin polymerization, which is obtained by a process comprising the step of contacting: (a-1) a carrier of carboxyl group-carrying polymer particles having an average particle diameter of from 1 to 300 &mgr;m, and (b) a transition metal compound of the number 4 group of metals in the periodic table of elements; (II) a catalyst for olefin polymerization, which is obtained by a process comprising the step of contacting: (A-1) the above solid catalyst component, and (B) at least one compound selected from the group consisting of an organoaluminum compound and an organoaluminumoxy compound; (III) a process for producing an olefin polymer, which comprises the step of polymerizing an olefin in the presence of the above catalyst; and (IV) a process for producing the above solid catalyst component (A-1), which comprises the step of contacting: (a-1) the above carrier, and (b) the above transition metal compound.Type: GrantFiled: January 21, 2003Date of Patent: December 7, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Tatsuya Miyatake, Masaaki Nabika, Seiki Kiuchi
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Patent number: 6815529Abstract: This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The catalytic efficiency of the catalyst of the present invention is more than 8×104 g polymer/mol RE(RE is rare earth metal). The number average molecular weight of the polymer is higher than 30,000. The degree of carbon dioxide fixation is more than 42 wt % and the content of alternative sequence structure exceeds 97%.Type: GrantFiled: August 29, 2001Date of Patent: November 9, 2004Assignee: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Xiaojiang Zhao, Xianhong Wang, Fosong Wang
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Patent number: 6809056Abstract: The present invention relates to a process for manufacturing polyolefin polymerization catalysts and provides a process for manufacturing polyolefin polymerization catalysts, wherein after manufacturing a homogeneous solution of magnesium compounds using magnesium compounds and alcohols along with hydrocarbon solvents and contacting with titanium compounds by adding organic aluminum, the mixture is treated again with organic aluminum or alcohols having 5 or less carbon atoms, then contacted with titanium compounds. Polyolefin polymerization catalysts prepared by the preparation process of the present invention have superior polyolefin polymerization activities, they prepare polymers having high Melt Flow Ratios, and produce a lesser amount of fine particle polymers.Type: GrantFiled: January 31, 2001Date of Patent: October 26, 2004Assignee: LG Chemical LtdInventors: Hong-Ki Choi, Joo-Kee Yoon, Churl-Young Park, Jae-Seung Oh
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Patent number: 6777449Abstract: When elemental iron is in the presence of chlorinated compounds (contaminants) a naturally occurring reaction takes place and the chlorinated compounds are reduced and form harmless compounds. The production of extremely small metal particles containing elemental iron or a mixture of elemental iron and a second metal is imperative to this method of treating contaminants and is the subject of the present invention. When the particle is made small enough a surfactant is not required for the particle to do its job. The elemental metal may be kept in an elemental state by keeping it in an oxygen-scavenging environment. This is achieved by either suspending the nanoscale metal in a carbohydrate solution or by injecting a carbohydrate solution in atomized form into the gas used to inject the metal into the subsurface soil.Type: GrantFiled: December 19, 2001Date of Patent: August 17, 2004Assignee: Case Logic, Inc.Inventors: David Vance, Suthan S. Suthersan, Peter Palmer