Aluminum Containing Patents (Class 423/327.1)
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Patent number: 7335342Abstract: In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting Kimberlite tailing with mineral acid to remove acid soluble impurities followed by digesting acid treated Kimberlite tailing with alkali solution in a open or closed system to obtain sodium silicate useful for commercial applications.Type: GrantFiled: March 14, 2006Date of Patent: February 26, 2008Assignee: Council of Scientific and Industrial ResearchInventors: Raksh Vir Jasra, Hari Chand Bajaj, Rajesh Shantilal Somani, Haresh Mahipatlal Mody, Jatin Rameshchandra Chunawala, Devendra Lalijibhai Ghelani, Hemal Narendrakumar Ranpara, Dipti Jivanbhai Barochiya, Suresh Chandra, Maharaj Kishan Dhar, C. Kesava Rao, Kamlesh Kumar
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Patent number: 7285260Abstract: Method of synthesis for a material made of particles having a core and a coating and/or being connected to each other by carbon cross-linking, the core of these particles containing at least one compound of formula LixM1?yM?y(XO4)n, in which x,y and n are numbers such as 0?x?2, 0?y?0.6 and 1?n?1.5, M is a transition metal, M? is an element with fixed valency, and the synthesis is carried out by reaction and bringing into equilibrium the mixture of precursors, with a reducing gaseous atmosphere, in such a way as to bring the transition metal or metals to the desired valency level, the synthesis being carried out in the presence of a source of carbon called carbon conductor, which is subjected to pyrolysis. The materials obtained have excellent electrical conductivity as well as very improved chemical activity.Type: GrantFiled: September 21, 2001Date of Patent: October 23, 2007Assignees: Hydro Quebec, CNRS, Universite de MontrealInventors: Michel Armand, Michel Gauthier, Jean-Francois Magnan, Nathalie Ravet
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Patent number: 7241336Abstract: Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. AI2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis or preferably flame hydrolysis by a joint combustion of the gaseous raw substances. They can be used to produce coating colors, especially for inkjet papers or inkjet foils or other inkjet materials.Type: GrantFiled: July 22, 2002Date of Patent: July 10, 2007Assignee: Degussa GmbHInventors: Thomas Scharfe, Ronald Apel, Alfons Moster, Helmut Mangold, Ralph Brandes
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Patent number: 7201826Abstract: A microparticle retention aid for use in papermaking containing a high performance purified natural zeolite pigment is disclosed. Use of the pigment facilitates manufacture of papers with improved quality and economics. When used as filler, the novel zeolite pigment is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction.Type: GrantFiled: May 17, 2004Date of Patent: April 10, 2007Assignee: ZO Mineral Partners Ltd.Inventors: Charles P. Klass, Martin D. Sikora
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Patent number: 7163669Abstract: Disclosed is a fluid cosmetic composition comprising a sebum-absorbing calcium silicate. These cosmetic compositions provide effective, long-lasting facial cosmetic coverage that is highly resistant to the sebum-caused deterioration that results in the discoloration and fading typically experienced by conventional cosmetic compositions after a sustained period of use. The cosmetic composition may be in the form of a créme, lotion, gel, semi-solid, dispersion, suspension, foam, mousse or spray.Type: GrantFiled: June 19, 2002Date of Patent: January 16, 2007Assignee: J.M. Huber CorporationInventors: Michael C. Withiam, Donald P. Conley, Robert S. Zonis
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Patent number: 7105140Abstract: A composition comprising manganese oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: GrantFiled: March 4, 2002Date of Patent: September 12, 2006Assignee: ConocoPhillips CompanyInventors: Ashley G. Price, Jason J. Gislason, Glenn W. Dodwell, Robert W. Morton, George D. Parks
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Patent number: 7097818Abstract: Precipitated silica or silicates, obtainable by acid precipitation of aqueous silicate solutions while maintaining a constant alkali number of at least 1.Type: GrantFiled: January 31, 2005Date of Patent: August 29, 2006Assignee: Degussa AGInventors: Gottlieb-Georg Lindner, Robert Kuhlmann, Claus-Peter Drexel
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Patent number: 7090809Abstract: A method for the production of inorganic aluminum substances and amorphous silica from aluminum oxide containing ores, comprising: (a) leaching of said ores with fluorosilicic acid to obtain aluminum fluosilicate solution; (b) filtering said leached solution from insoluble materials; and (c) washing said insoluble materials.Type: GrantFiled: December 27, 2001Date of Patent: August 15, 2006Assignee: ATI-Aluminum Technologies Israel Ltd.Inventors: Simcha Harel, Lev Shapira
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Patent number: 6982069Abstract: A dye fixing agent for water-color ink to be contained in the water-color ink accepting layer of an ink jet recording medium having an water-color ink accepting layer formed on a substrate, which is a hydrotalcite compound containing a silicic acid anion and a sulfuric acid ion, or a silicic acid anion as an anion(s). An ink jet recording medium comprising the dye fixing agent for water-color ink formed on a substrate. The dye fixing agent for water-color ink of the present invention is excellent in the fixability of water-color ink, the resolution of an image recorded on a medium, water resistance and light resistance.Type: GrantFiled: June 30, 2003Date of Patent: January 3, 2006Assignee: Kyowa Chemical Industry Co., Ltd.Inventors: Kanako Tanaka, Akira Okada
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Patent number: 6953767Abstract: The present invention relates to a silicoaluminophosphate molecular sieve comprising at least one intergrown phase of molecular sieves having AEI and CHA framework types, wherein said intergrown phase has an AEI/CHA ratio of from about 5/95 to 40/60 as determined by DIFFaX analysis, using the powder X-ray diffraction pattern of a calcined sample of said silicoaluminophosphate molecular sieve. It also relates to methods for its preparation and to its use in the catalytic conversion of methanol to olefins.Type: GrantFiled: March 7, 2002Date of Patent: October 11, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Marcel J. G. Janssen, An Verberckmoes, Machteld M. Mertens, Antonie Jan Bons, Wilfried J. Mortier
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Patent number: 6939825Abstract: It is to provide a catalyst carrier having large pore size and porosity and a small pressure loss. The catalyst carrier is characterized by covering a surface of each particle in a silicon-containing ceramic carrier with alumina thin film, and is produced by immersing a carrier having an oxide film of a silicide in its surface in a solution of aluminum containing metal compound, drying by heating, calcining, subjecting to an immersion treatment in hot water and thereafter firing.Type: GrantFiled: June 22, 2000Date of Patent: September 6, 2005Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Teruo Komori, Akira Hasegawa, Noriyoshi Kakuta
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Patent number: 6933259Abstract: This composite oxide powder can secure a large pore volume even after calcination at high temperature and, when a catalyst is formed by loading a noble metal on this composite oxide powder, noble metal grain growth can be suppressed. The composite oxide powder comprises particles of an oxide of a metal M1 and an oxide of a metal M2 which does not dissolve in the oxide of the metal M1, the oxide of the metal M1 and the oxide of the metal M2 being dispersed at the nanometer level. Since different oxides serve as a barrier to each other, sintering is suppressed. Therefore, in the case of composite oxide powder comprising Ce as a metal M1 and Al as a metal M2, grain growth is small even after exposed to high temperature and pores of 3.5-100 nm secure a volume of 0.07 cc/g or more after calcination at 600° C. for 5 hours and a volume of 0.04 cc/g or more after calcination at 800° C. for 5 hours.Type: GrantFiled: November 14, 2001Date of Patent: August 23, 2005Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Miho Hatanaka, Akira Morikawa, Akihiko Suda, Hideo Sobukawa, Kiyoshi Yamazaki
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Patent number: 6929787Abstract: A composite which is easy to manufacture and has excellent catalytic activity and mechanical strength is obtained by heating and drying a mixture of a carrier in powder form and a metal hydroxide in powder form or in molten form under a gas flow or under reduced pressure. The composite can be used as a catalyst for the isomerization of an olefin or for the oxidation reaction of an alcohol.Type: GrantFiled: February 13, 2002Date of Patent: August 16, 2005Assignee: Kuraray Co., Ltd.Inventor: Yasuo Tokitoh
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Patent number: 6927187Abstract: The invention is directed to a method of synthesising silicoaluminophosphate molecular sieves and in particular those of framework type CHA and AEL. The method uses synthesis templates that comprise one or more tertiary dialkylbutylamines, wherein the alkyl groups are not butyl. The use of such templates. especially N,N-dimethylbutylamine, results in SAPO-11 of a desirable platelet morphology.Type: GrantFiled: July 11, 2003Date of Patent: August 9, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Guang Cao, Matu J. Shah, John F. Brody
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Patent number: 6914030Abstract: The invention is directed to a method of synthesizing silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety, selected from one or more of N,N-dimethylethanolamine, N,N-dimethylpropanolamine, N,N-dimethylbutanolamine, N,N-dimethylheptanolamine, N,N-dimethylhexanolamine, N,N-dimethylethylenediamine, N,N-dimethylbutylenediamine, N,N-dimethylheptylenediamine, N,N-dimethylhexylenediamine 1-dimethylamino-2-propanol, N,N-dimethylethylamine, N,N-dimethylpropylamine, N,N-dimethylpentylamine, N,N-dimethylhexylamine and N,N-dimethylheptylamine. The use of dimethylamino moiety containing templates results in good quality SAPO molecular sieves of CHA framework type.Type: GrantFiled: April 24, 2003Date of Patent: July 5, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Guang Cao, Matu J. Shah
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Patent number: 6908879Abstract: A ceramic article is disclosed which contains aluminum, silicon, and titanium in a total amount of at least 99% by weight as reduced to the oxides (Al2O3+SiO2+TiO2) and assumes an acidic color in methyl red, an indicator of at least pKa+4.8. It can be used as a carried for a catalyst. This ceramic article is obtained by mixing an aluminum compound, a silicon compound, and a titanium compound and calcining the resultant mixture at a temperature in the range of 1,000°-2,000° C. A catalyst for preparing ethylene oxide is obtained by depositing silver and a reaction promoter on the ceramic carrier and ethylene oxide is obtained by oxidizing ethylene with a molecular oxygen-containing gas in the presence of the catalyst in vapor phase.Type: GrantFiled: September 5, 2000Date of Patent: June 21, 2005Assignee: Nippon Shokubai Co., Ltd.Inventors: Masahide Shima, Hitoshi Takada
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Patent number: 6866925Abstract: The invention concerns a heat-stable ordered mesoporous or mesostructured material comprising a mineral phase wherein are dispersed particles of nanometric dimension at least partly crystaline, the global crystallinity index of said mesostructured or ordered mesoporous material being less than 10% in volume. The invention also concern a method for obtaining such a material.Type: GrantFiled: November 2, 2000Date of Patent: March 15, 2005Assignee: Rhodia ChimieInventor: Jean-Yves Chane-Ching
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Patent number: 6852300Abstract: A sol-gel process allowing preparation, on a substrate, of glassy films of silicon oxide or mixed oxides based on silicon oxide, of thickness above 1 micrometer, generally between 2 and 20 micrometers and characterized by absence of defects, that turn out to be particularly suitable as waveguides in flat optical devices.Type: GrantFiled: February 7, 2003Date of Patent: February 8, 2005Assignee: Novara Technology S.r.l.Inventors: Lorenzo Costa, Pier Paolo Costa, Stefania Grandi
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Patent number: 6849112Abstract: Amorphous inorganic particles as a dental material includes silica and inorganic oxide(s) other than silica and has high x-ray impermeability. The inorganic particles as a dental material includes silica with the content in the range from 70 to 98 weight % and oxide(s) of one or more elements selected from the group of Zr, Ti, La, Ba, Sr, Hf, Y, Zn, AL, and B, wherein 5 to 70 weight % of the silica is originated from an acidic silicic acid solution and 30 to 95 weight % of the silica is originated from a sol of silica. The inorganic particles as a dental material have an average particle diameter in the range from 1 to 10 ?m, specific surface area in the range from 50 to 350 m2/g, pore volume in the range from 0.05 to 0.5 ml/g, amorphous crystallinity as observed by x-ray diffraction, and the refractive index in the range from 1.47 to 1.60.Type: GrantFiled: November 12, 2002Date of Patent: February 1, 2005Assignee: Catalysts & Chemicals Industries Co., Ltd.Inventors: Hiroyasu Nishida, Noboru Senju, Michio Komatsu
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Patent number: 6835320Abstract: A composite metal polybasic salt containing a trivalent metal, zinc metal and a divalent metal as metal components and having a novel crystal structure, and a method of preparing the same. The invention further deals with a composite metal polybasic salt which has anion-exchanging property, which by itself is useful as an anion-exchanger, capable of introducing anions suited for the use upon anion-exchange, and finds a wide range of applications, and a method of preparing the same. The composite metal polybasic salt has a particular chemical composition and X-ray diffraction peaks, exhibiting peaks at 2&thgr;=2 to 15°, 2&thgr;=19.5 to 24° and 2&thgr;=33 to 50°, and a single peak at 2&thgr;=60 to 64° in the X-ray diffraction (Cu-&agr;).Type: GrantFiled: March 6, 2001Date of Patent: December 28, 2004Assignee: Mizusawa Industrial Chemicals, Ltd.Inventors: Yoshinobu Komatsu, Hitoshi Ishida, Hiroshi Igarashi, Masami Kondo, Madoka Minagawa, Tetsu Sato, Teiji Sato
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Patent number: 6812372Abstract: The present invention relates to a silicoaluminophosphate molecular sieve comprising at least one intergrown phase of molecular sieves having AEI and CHA framework types, wherein said intergrown phase has an AEI/CHA ratio of from about 5/95 to 40/60 as determined by DIFFaX analysis, using the powder X-ray diffraction pattern of a calcined sample of said silicoaluminophosphate molecular sieve. It also relates to methods for its preparation and to its use in the catalytic conversion of methanol to olefins.Type: GrantFiled: August 7, 2001Date of Patent: November 2, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Marcel J. G. Janssen, An Verberckmoes, Machteld M. Mertens, Antonie Jan Bons, Wilfried J. Mortier
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Publication number: 20040191151Abstract: Novel superhard dielectric compounds useful as gate dielectrics discovered. Low temperature methods for making thin films of the compounds on substrate silicon are provided. The methods comprise the step of contacting a precursor having the formula H3X—O—XH3, wherein X is silicon or carbon with a compound comprising boron or nitrogen in a chemical vapor deposition (CVD) chamber or with one or more atomic elements in a molecular beam epitaxial deposition (MBE) chamber. These thin film constructs are useful as components of microelectronic devices, and specifically as gate dielectrics in CMOS devices.Type: ApplicationFiled: April 8, 2004Publication date: September 30, 2004Inventors: John Kouvetakis, I S T Tsong, Levi Torrison, John Tolle
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Patent number: 6743766Abstract: The invention relates to a sparingly soluble alkali metal silicate which comprises alkali metal phyllosilicate in finely divided form in a non-phyllosilicatic alkali metal silicate environment of the formula x MI2O.y SiO2, in which MI is an alkali metal and y/x (1.9 to 500): 1; a process for its preparation and its use in detergents and cleaners.Type: GrantFiled: September 11, 2000Date of Patent: June 1, 2004Assignee: Clariant GmbHInventors: Harald Bauer, Josef Holz, Guenther Schimmel, Alexander Tapper
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Publication number: 20040086445Abstract: Method of synthesis for a material made of particles having a core and a coating and/or being connected to each other by carbon cross-linking, the core of these particles containing at least one compound of formula LixM1−yM′y(XO4)n, in which x,y and n are numbers such as 0≦x≦2, 0≦y≦0.6 and 1≦n≦1.5, M is a transition metal, M′ is an element with fixed valency, and the synthesis is carried out by reaction and bringing into equilibrium the mixture of precursors, with a reducing gaseous atmosphere, in such a way as to bring the transition metal or metals to the desired valency level, the synthesis being carried out in the presence of a source of carbon called carbon conductor, which is subjected to pyrolysis. The materials obtained have excellent electrical conductivity as well as very improved chemical activity.Type: ApplicationFiled: June 19, 2003Publication date: May 6, 2004Inventors: Michel Armand, Michel Gauthier, Jean-Francois Magnan, Nathalie Ravet
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Patent number: 6723297Abstract: An acidic amorphous silica-alumina having large specific surface area and a large pore volume, a carrier complex and a hydrotreating catalyst containing said acidic amorphous silica-alumina, in particular a hydrocracking catalyst containing said acidic amorphous silica-alumina in combination with a modified zeolite-Y for treating petroleum hydrocarbon materials to produce middle distillates, and processes for the preparation thereof. Said amorphous silica-alumina has a SiO2 content of 10-50 wt %, a specific surface area of 300-600 m2/g, a pore volume of 0.8-1.5 ml/g and an IR acidity of 0.25-0.60 mmol/g. The catalyst according to the present invention shows a relatively high activity and mid-distillate selectivity and can be particularly used in hydrocracking process for producing mid-distillates in a higher yield.Type: GrantFiled: April 25, 2002Date of Patent: April 20, 2004Assignees: China Petrochemical Corp., Fushun Research Institute of Petroleum & Petrochemical, SINOPECInventors: Song Chen, Tingyu Li, Guangwei Cao, Minghua Guan
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Patent number: 6719821Abstract: The production and selection of precursor mixtures used to produce fine powders and methods for making fine powders using the selected precursor. The precursor mixture comprises at least one metal containing precursor, the metal containing precursor has an average molecular weight of less than 2000 grams per unit mol of the metal, the metal containing precursor has a normal boiling point greater than 350K, and the viscosity of the precursor mixture is between 0.1 to 250 cP. The precursor mixture is processed under conditions that produce a fine powder from the precursor mixture. Fine powders produced are of size less than 100 microns, preferably less than 10 micron, more preferably less than 1 micron, and most preferably less than 100 nanometers.Type: GrantFiled: February 8, 2002Date of Patent: April 13, 2004Assignee: NanoProducts CorporationInventors: Tapesh Yadav, Elena Mardilovich
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Publication number: 20040062701Abstract: The invention concerns a method for preparing precipitated silica comprising reaction of a silicate with an acidifying agent whereby is obtained a precipitated silica suspension, then separating and drying said suspension. The invention is characterised in that said method comprises the following process: adding to the reaction medium at least a compound A of aluminium; then adding to the reaction medium an acidifying agent, said separation comprising filtration and disintegration of the cake derived from said filtration, said disintegration being preferably carried out in the presence of at least a compound B of aluminium. The thus prepared silica precipitates are particularly well adapted for use as reinforcing elastomer filler.Type: ApplicationFiled: October 22, 2003Publication date: April 1, 2004Inventors: Remi Valero, Yvonick Chevallier
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Patent number: 6706249Abstract: A composite metal polybasic salt containing a trivalent metal and magnesium as metal components and having a novel crystal structure, and a method of preparing the same. The invention further deals with a composite metal polybasic salt which has anion-exchanging property, which by itself is useful as an anion-exchanger, capable of introducing anions suited for the use upon anion-exchange, and finds a wide range of applications, and a method of preparing the same. The composite metal polybasic salt has a particular chemical composition and X-ray diffraction peaks, and further has a degree of orientation (Io) of not smaller than 1.5.Type: GrantFiled: March 6, 2001Date of Patent: March 16, 2004Assignee: Mizusawa Industrial Chemicals Ltd.Inventors: Yoshinobu Komatsu, Hitoshi Ishida, Hiroshi Igarashi, Masami Kondo, Madoka Minagawa, Tetsu Sato, Teiji Sato
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Publication number: 20040047791Abstract: A method for the production of inorganic aluminum substances and amorphous silica from aluminum oxide containing ores, comprising: (a) leaching of said ores with fluorosilicic acid to obtain aluminum fluosilicate solution; (b) filtering said leached solution from insoluble materials; and (c) washing said insoluble materials.Type: ApplicationFiled: June 27, 2003Publication date: March 11, 2004Inventors: Simcha Harel, Lev Shapira
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Patent number: 6699797Abstract: The present provides a method for forming a porous metal silicate dielectric layer having a dielectric constant of less than 2.0. The porous metal silicate dielectric formed by embodiments of the present invention is suitable for integration into the microelectric device manufacturing process. By carefully controlling the amount and type of surfactant used, the pore size and structure of the dielectric layer can be predetermined.Type: GrantFiled: December 17, 2002Date of Patent: March 2, 2004Assignee: Intel CorporationInventors: Michael A. Morris, Kevin M. Ryan, Justin D. Holmes, Willie J. Lawton
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Patent number: 6680278Abstract: The invention is directed to a method of synthesising silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety. The use of dimethylamino moiety containing templates results in good quality SAPO molecular sieves of CHA framework type.Type: GrantFiled: June 12, 2002Date of Patent: January 20, 2004Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Guang Cao, Matu J. Shah
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Publication number: 20030198583Abstract: A catalyst composition is disclosed for the reduction of soot and undesirable gaseous emissions from engine exhaust, particularly exhaust from diesel engines. The catalyst contains an alkali metal catalytic metal oxide, preferably lithium platinum oxide, in which the catalytic metal is atomically isolated. For improved performance in a diesel particulate filter, the alkali catalytic metal oxide is uniformly dispersed on an alkali metal aluminate such as lithium aluminate. Also disclosed is the catalytic device comprising this catalyst.Type: ApplicationFiled: April 22, 2002Publication date: October 23, 2003Inventor: Wenzhong Zhang
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Publication number: 20030187312Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a making a molecular sieve catalyst composition by forming a slurry by combining a molecular sieve, a binder and a matrix material, wherein the slurry has a pH, above or below the isoelectric point of the molecular sieve. The catalyst composition has improved attrition resistance, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: June 24, 2002Publication date: October 2, 2003Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc R.M. Martens, Joseph E. Baumgartner, Stuart L. Soled, Kenneth R. Clem
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Patent number: 6620983Abstract: The invention is directed to a method of synthesizing aluminophosphate or silicoaluminophosphate molecular sieves and in particular to the synthesis of silicoaluminophosphate molecular sieves using synthesis templates in combination with a source of fluoride comprising at least two fluoride substituents. The use of such fluorine containing compounds results in good quality low silica SAPO molecular sieves of CHA framework type.Type: GrantFiled: June 12, 2002Date of Patent: September 16, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Guang Cao, Matu J. Shah, Karl G. Strohmaier, Richard B. Hall
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Patent number: 6589899Abstract: A high pressure phase spinel type sialon represented by the chemical formula Si6−xAlxOxN8−x (0<x≦4.2), and a high pressure phase spinel type silicon oxynitride represented by the chemical formula Si3+xO2xN4 (═Si3N4.xSiO2, 0<x<1). Methods for their production by instantaneous pressing by means of an impulse wave.Type: GrantFiled: March 12, 2001Date of Patent: July 8, 2003Assignee: National Institute for Research in Inorganic MaterialsInventors: Toshimori Sekine, Hongliang He, Takamichi Kobayashi, Koji Kimoto, Mamoru Mitomo
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Patent number: 6572964Abstract: A process for producing an ultrafine mixed-crystal oxide characterized by producing an ultrafine mixed crystal oxide comprising primary particles in a mixed crystal state with a BET specific surface area of 10 to 200 m2/g, comprising the step of subjecting a halogenated metal to high temperature oxidation with an oxidizing gas to produce a metal oxide by a vapor phase production method, wherein said halogenated metal is in the form of a mixed gas (a mixed halogenated metal gas) comprising at least two compounds having a different metal elements selected from the group consisting of chlorides, bromides, and iodides of titanium, silicon, and aluminum, and said mixed halogenated metal gas and said oxidizing gas are independently preheated to 500° C. or more prior to a reaction, a ultrafine mixed crystal oxide obtained by the process, and use of the oxide.Type: GrantFiled: February 5, 2001Date of Patent: June 3, 2003Assignee: Showa Denko K.K.Inventors: Jun Tanaka, Shinichiro Tomikawa
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Publication number: 20030095905Abstract: Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. Al2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis or preferably flame hydrolysis by a joint combustion of the gaseous raw substances. They can be used to produce coating colors, especially for inkjet papers or inkjet foils or other inkjet materials.Type: ApplicationFiled: July 22, 2002Publication date: May 22, 2003Inventors: Thomas Scharfe, Ronald Apel, Alfons Moster, Helmut Mangold, Ralph Brandes
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Publication number: 20030082088Abstract: A silica-rich support is developed, which is used for preparing catalysts and may be employed in other fields of engineering: for producing fiber optic materials, in the manufacture of filters, etc.Type: ApplicationFiled: June 27, 2002Publication date: May 1, 2003Inventors: Viktor Vladimirovich Barelko, Bair Sydypovich Balzhinimaev, Sergei Petrovich Kildyashev, Mikhail Grigorievich Makarenko, Anatoly Nikolaevich Parfenov, Ljudmila Grigorievna Simonova, Alexandr Viktorovich Toktarev
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Patent number: 6544631Abstract: A dye fixing agent for water-color ink to be contained in the water-color ink accepting layer of an ink jet recording medium having a water-color ink accepting layer formed on a substrate, which is a hydrotalcite compound containing a silicic acid anion and a sulfuric acid ion, or a silicic acid anion as an anion(s) and metal lithium. An ink jet recording medium comprising the dye fixing agent for water-color ink on a substrate. The dye fixing agent for water-color ink provided by the present invention is excellent in the fixability of water-color ink and the ink jet recording medium provided by the present invention is excellent in the resolution, water resistance and light resistance of an image recorded on the medium.Type: GrantFiled: July 13, 2001Date of Patent: April 8, 2003Assignee: Kyowa Chemical Industry Co., Ltd.Inventors: Kanako Tanaka, Akira Okada
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Patent number: 6533923Abstract: The present invention relates to stevensite or kerolite type trioctahedral phyllosilicates 2:1 containing fluorine, fluorinated in synthesis in an acid medium and modified post-synthesis to bring about Si/Al and/or Mg/Al substitutions which impart acid properties to the solid. These phyllosilicates may be incorporated in the composition of catalysts used to convert hydrocarbons, in particular for hydrocracking.Type: GrantFiled: December 26, 2000Date of Patent: March 18, 2003Assignee: Institut Francais du PétroleInventors: Sylvie Lacombe, Véronique Schlussel, Jacques Baron, Ronan Le Dred
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Patent number: 6531552Abstract: An olefin polymerization catalyst comprising the following components (A) and (B): Component (A): an ion-exchange layered silicate having an acid site of at most −8.2 pKa, the amount of the acid site is equivalent to at least 0.05 mmol/g of 2,6-dimethylpyridine consumed for neutralization; and Component (B): a compound of a transition metal belonging to Group 3 to Group 12 of the Periodic Table.Type: GrantFiled: January 10, 2001Date of Patent: March 11, 2003Assignee: Japan Polychem CorporationInventors: Hiroshi Nakano, Takao Tayano, Hideshi Uchino, Tadashi Takahashi
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Patent number: 6521563Abstract: Disclosed are silicoaluminates (SAPOs) having unique silicon distributions, a method for their preparation and their use as naphtha cracking catalysts. More particularly, the new SAPOs have a high silica:alumina ratio and favorable Si atom distribution.Type: GrantFiled: December 13, 2000Date of Patent: February 18, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Karl G. Strohmaier, David E. W. Vaughan
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Publication number: 20020164380Abstract: The present invention encompasses novel mesoporous compositions comprising vitamin E and alumina, and methods for their synthesis. The mesoporous compositions of the present invention have applications as drug-delivery vehicles.Type: ApplicationFiled: February 19, 2002Publication date: November 7, 2002Inventors: Ying Ma, Kenneth J. Balkus
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Publication number: 20020160906Abstract: The present invention relates to an acidic amorphous silica-alumina having large specific surface area and a large pore volume, a carrier complex and a hydrotreating catalyst containing said acidic amorphous silica-alumina, in particular a hydrocracking catalyst containing said acidic amorphous silica-alumina in combination with a modified zeolite-Y for treating petroleum hydrocarbon materials to produce middle distillates, and processes for the preparation thereof. Said amorphous silica-alumina has a SiO2 content of 10-50 wt %, a specific surface area of 300-600 m2/g, a pore volume of 0.8-1.5 ml/g and an IR acidity of 0.25-0.60 mmol/g. The catalyst according to the present invention shows a relatively high activity and mid-distillate selectivity and can be particularly used in hydrocracking process for producing mid-distillates in a higher yield.Type: ApplicationFiled: April 25, 2002Publication date: October 31, 2002Applicant: China Petrochemical CorporationInventors: Song Chen, Tingyu Li, Guangwei Cao, Minghua Guan
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Patent number: 6430966Abstract: The present invention is a glass-ceramic material and method of making useful for joining at least two solid ceramic parts. The seal is a blend of MAO—MBOy—SiO2 that substantially matches a coefficient of thermal expansion of the solid electrolyte. According to the present invention, a series of glass ceramics in the MAO—MBOy—SiO2 system can be used to join or seal both tubular and planar ceramic solid oxide fuel cells, oxygen electrolyzers, and membrane reactors for the production of syngas, commodity chemicals and other products.Type: GrantFiled: July 30, 1999Date of Patent: August 13, 2002Assignee: Battelle Memorial InstituteInventors: Kerry D. Meinhardt, John D. Vienna, Timothy R. Armstrong, Larry R. Pederson
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Patent number: 6418661Abstract: A hydrotalcite compound which has the excellent ability to absorb infrared rays and has excellent light transmission when contained in an agricultural film; a process for producing the compound; and an infrared absorber and an agricultural film both containing the compound. The hydrotalcite compound is characterized by retaining as the interlayer anions at least one kind of anions selected among ions of silicon-, phosphorus-, and boron-containing polymeric oxyacids and another kind of anions.Type: GrantFiled: August 1, 2000Date of Patent: July 16, 2002Assignee: Kyowa Chemical Industry Co LtdInventors: Hideo Takahashi, Akira Okada
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Patent number: 6409978Abstract: A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice which contains an impurity in its crystal lattice and a halogen anion, and water; heating the mixture to the mineral's structural reorganization transition temperature; holding the mixture at the structural reorganization transition temperature for a sufficient period of time to allow the impurity to freely migrate from the lattice to combine with the halogen anion; and separating the combined impurity and anion from the mixture to render the mineral essentially free of the impurity. The process is applicable to numerous minerals and impurities, but is especially useful to remove arsenic from fluorspar. Numerous halogen anions can be employed, such as chlorides, fluorides, bromides and iodides, but the preferred halogen anion is a metal chloride such as calcium chloride.Type: GrantFiled: July 13, 2000Date of Patent: June 25, 2002Assignee: Svedala Industries, Inc.Inventors: Bobby P. Faulkner, John M. Paustian
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Patent number: 6379641Abstract: Crystalline microporous rare earth silicates are provided. These microporous compositions have a three dimensional framework structure of at least silicon tetrahedral oxide units and at least one M oxide unit. M is a rare earth element. Optionally, the microporous compositions may contain as part of the framework an M′ element having a valence of +2, +3, +4 or +5 such as zinc (+2), iron (+3), zirconium (+4) and tantalum (+5). The composition is represented by the empirical formula: An(M1−zM′z)wSi1−yGeyOx where A is a cation such as sodium and “n”, “z”, “w”, “y” and “x” are the mole fractions of the various elements.Type: GrantFiled: May 1, 2000Date of Patent: April 30, 2002Assignee: UOP LLCInventors: Robert L. Bedard, Jana L. Gisselquist, Lisa M. King, Elaine F. Schumacher
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Publication number: 20010053744Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions and their preparation. More particularly, the new SAPOs have a high silica:alumina ratio, and are prepared from single phase synthesis solutions, or from microemulsions containing surfactants.Type: ApplicationFiled: May 20, 1999Publication date: December 20, 2001Inventors: KARL G. STROHMAIER, DAVID E. W. VAUGHAN
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Patent number: 6319486Abstract: The present invention relates to a method for synthesizing mesoporous aluminosilicate or pure-silica molecular sieves with newly hierarchical morphologies by adding suitable amount of alcohol. There are hollow sphere, hollow sphere with a pillar in it and solid sphere by adjusting the Al2O3/SiO2 and tetraethylorthosilicate/SiO2 ratio. The wall of the micron-sized spherical structure consisted of well-ordered cylindrical pores of nanometer size. The dimensions and the morphologies of the mesoporous structure are adjustable by varying the reaction components as the water content, the silicon/surfactant ratio and the reaction and the hydrothermal temperature.Type: GrantFiled: September 22, 1999Date of Patent: November 20, 2001Assignee: Chinese Petroleum Corp.Inventors: Chung-Yuan Mou, Hong-Ping Lin