Tin Containing Patents (Class 502/310)
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Patent number: 4908192Abstract: 2-way and 3-way catalyst compositions comprising tin(IV) oxide (SnO.sub.2) and chromium(VI) oxide (CrO.sub.3) are disclosed for use in catalytic converters for vehicle exhaust gas systems, such catalyst compositions being effective in the catalytic oxidation of carbon monoxide and unburnt hydrocarbons, and in the catalytic reduction of nitrogen oxides contained in the vehicle exhaust.Type: GrantFiled: March 10, 1988Date of Patent: March 13, 1990Assignee: TI Corporate Services LimitedInventors: Philip G. Harrison, Peter J. F. Harris
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Patent number: 4843055Abstract: Disclosed is ammoxidation of C.sub.3 to C.sub.5 acyclic alkanes with NH.sub.3 and O.sub.2 using (1) a mole ratio of alkane:NH.sub.3 in the range from 2 to 16 and a mole ratio of alkane:O.sub.2 in the range 1 to 10 and (2) a mixture of particulate catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated mononitrile. Catalyst compositions useful in the process are also disclosed.Type: GrantFiled: May 16, 1988Date of Patent: June 27, 1989Assignee: The Standard Oil CompanyInventors: Linda C. Glaeser, James F. Brazdil, Jr.
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Patent number: 4835125Abstract: Disclosed is ammoxidation of C.sub.3 to C.sub.5 acyclic alkanes with NH.sub.3 and O.sub.2 using (1) a mole ratio of alkane:NH.sub.3 in the range from 2 to 16 and a mole ratio of alkane:O.sub.2 in the range 1 to 10 and (2) a mixture of particular catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated mononitrile. Catalyst compositions useful in the process are also disclosed.Type: GrantFiled: May 31, 1988Date of Patent: May 30, 1989Assignee: The Standard Oil CompanyInventors: Linda C. Glaeser, James F. Brazdil, Jr., Mark A. Toft
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Patent number: 4830844Abstract: A composition of matter comprising monolith support material, SnO.sub.2, Pt and/or Pd and at least one Cr compound is prepared by a process comprising the steps of coating a monolith material with colloidal SnO.sub.2, drying, impregnation with compounds of Pt and/or Pd and Cr (and preferably Mn), drying/calcining, and heating in a reducing gas at a temperature of about 0-300.degree. C. This composition of matter is used as a catalyst in a process for oxidizing CO with O.sub.2 to CO.sub.2, preferably in a CO.sub.2 laser.Type: GrantFiled: October 6, 1987Date of Patent: May 16, 1989Assignee: Phillips Petroleum CompanyInventor: John H. Kolts
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Patent number: 4816603Abstract: The present invention provides a process for the production of methacrolein and methacrylic acid by the gas phase catalytic oxidation of isobutylene or t-butanol at high temperature using molecular oxygen in the presence of catalyst consisting of molybdenum, tungsten, bismuth, iron, nickel, antimony, and an alkali metal, to which zinc or lead is added, and further phosphorus sulfur, silicon, selenium, germanium or boron, and magnesium, cobalt, manganese or tin are added.Type: GrantFiled: November 26, 1985Date of Patent: March 28, 1989Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Motomu Oh-Kita, Yoshiyuki Taniguchi, Masaaki Kato, Masao Kobayashi
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Patent number: 4808563Abstract: A catalyst is disclosed which comprises a molybdenum-tungsten-containing complex represented by the formulaMo.sub.a W.sub.b M.sub.c A.sub.d O.sub.Type: GrantFiled: August 19, 1987Date of Patent: February 28, 1989Assignee: The Standard Oil CompanyInventor: Louis J. Velenyi
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Patent number: 4801568Abstract: Ammoxidation of C.sub.3 to C.sub.5 acyclic alkanes with NH.sub.3 and O.sub.2 using (1) a mole ratio of alkane:NH.sub.3 in the range from 2 to 16 and a mole ratio of alkane:O.sub.2 in the range 1 to 10 and (2) a mixture of particulate catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated nitrile. Catalytic compositions useful in the process are disclosed.Type: GrantFiled: October 22, 1987Date of Patent: January 31, 1989Assignee: The Standard Oil CompanyInventors: James F. Brazdil, Jr., Linda C. Glaeser, Mark A. Toft
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Patent number: 4705772Abstract: Novel compositions of matter include: mixed oxides of (a) at least one oxide of chromium, at least one oxide of manganese and at least one oxide of magnesium, Lanthanum Series Metals, preferably lanthanum and cerium, and/or niobium; (b) at least one oxide of chromium, at least one oxide of calcium, strontium, tin and/or antimony, at least one oxide of manganese and at least one oxide of magnesium, Lanthanum Series metals and/or niobium; (c) at least one oxide of chromium, at least one oxide of iron and at least one oxide of magnesium, Lanthanum Series metals and/or niobium; and (d) at least one oxide of chromium, at least one oxide of iron, at least one oxide of manganese and at least one oxide of magnesium, Lanthanum Series metals and/or niobium. These compositions are particularly effective as catalyst compositions for the conversion of C.sub.3 and C.sub.Type: GrantFiled: July 31, 1986Date of Patent: November 10, 1987Assignee: Phillips Petroleum CompanyInventors: John H. Kolts, Gary A. Delzer
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Patent number: 4629719Abstract: An improved olefin disproportionation catalyst produced by contacting an inorganic refractory oxide containing a catalytic amount of molybdenum oxide with a promoting amount of elemental metals of the group consisting of tin and magnesium.Type: GrantFiled: December 7, 1984Date of Patent: December 16, 1986Assignee: Phillips Petroleum CompanyInventors: Simon G. Kukes, Robert L. Banks
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Patent number: 4621072Abstract: A process is disclosed for preparing coated catalysts, inter alia, for gas phase oxidations in organic chemistry, comprised of an inert support and a coating of catalyst material enclosing this support, wherein a suspension of the starting material for the coating is sprayed onto an agitated bed of the support, while the suspending medium is being partially removed by a gas stream, and the raw material is then dried and heat-treated. For this purpose, the support bed is mechanically agitated and loosened by a gas stream blown in from below. The catalyst precursor containing a binder and, if appropriate, a pore-former is sprayed in an increasing amount from above onto the bed, the ratio between suspending medium sprayed on and drawn off remaining about constant. The thermal expansion coefficient of the precursor as a dry powder must not deviate by more than 15% from that of the support.Type: GrantFiled: February 26, 1985Date of Patent: November 4, 1986Assignee: Degussa AktiengesellschaftInventors: Dietrich Arntz, Gunter Prescher, Werner Burkhardt, Johannes Heilos, Reinhard Manner
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Patent number: 4568662Abstract: Preparation of alkylation catalysts containing iron oxide and/or chromium oxide, by means of a process which comprises:(a) precipitating hydrate oxides of iron and/or chromium from an aqueous solution of soluble compounds of said elements;(b) separating the thus obtained precipitate, and washing said precipitate;(c) granulating the washed precipitate, and drying the granules so obtained;(d) calcining said dried granules at high temperature;in which an organic carboxylic acid salt of iron and/or chromium is added to and homogenized with the washed precipitate from stage (b), and/or the dried granules from stage (c) are impregnated with an aqueous solution of an organic carboxylic acid salt of iron and/or chromium.The catalysts obtained by means of the above process are mechanically strong, and highly active in the production process of 2,6-xylenol by means of the alkylation of phenol or o-cresol with methanol.Type: GrantFiled: December 3, 1984Date of Patent: February 4, 1986Assignee: Enichimica S.p.A.Inventors: Jan Bialy, Irena Penczek, Nikuca Kopytowska, Josef Wrzyszcz, Jolanta Cmielowska, Hanna Grabowska, Wlodzimierz Kaczmarczyk, Kazimierz Mazur, Wlodzimierz Mista
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Patent number: 4560673Abstract: A vapor phase catalytic process for making acrylic acid from acrolein by oxidation thereof with molecular oxygen, optionally in the presence of steam. A new catalyst comprising a complex oxide catalyst of Mo, V and Zr.Type: GrantFiled: March 20, 1985Date of Patent: December 24, 1985Assignee: The Standard Oil CompanyInventor: Wilfrid G. Shaw
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Patent number: 4556731Abstract: Iron-bismuth-molybdate catalysts further containing specific promoter elements have been found to exhibit excellent redox stability even under high stress conditions in the catalytic oxidation of olefins to unsaturated aldehydes and acids.Type: GrantFiled: April 19, 1982Date of Patent: December 3, 1985Assignee: The Standard Oil CompanyInventors: Andrew T. Guttmann, Robert K. Grasselli
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Patent number: 4552862Abstract: A method for forming a pelletized catalyst having improved stability during a hydrogenation process such as the hydrogenation of a nitrile to an amine, includes the steps of mixing a metal having a melting point below about 400.degree. C. or a hydrogen reducible compound of the low melting point metal with at least one material which is an effective hydrogenation catalyst, and then compressing the mixture to form a pellet. This pellet can then be heated in a stream of gas comprising hydrogen at a temperature above the melting point of the metal. The pellet is then cooled and can then preferably be exposed to air or other oxygen containing gases. Preferred low melting point metals include cadmium and tin. Preferred hydrogenation catalysts include nickel and cobalt either alone or with other metals and metal compounds.Type: GrantFiled: March 7, 1983Date of Patent: November 12, 1985Assignee: Texaco Inc.Inventor: John M. Larkin
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Patent number: 4552978Abstract: A vapor phase catalytic process for making an unsaturated carboxylic acid from an olefinically unsaturated aldehyde, particularly acrylic acid from acrolein, by oxidation thereof with molecular oxygen, optionally in the presence of steam and a new catalyst comprising a complex oxide catalyst of Mo, V and Zr.Type: GrantFiled: December 12, 1983Date of Patent: November 12, 1985Assignee: The Standard Oil CompanyInventor: Wilfrid G. Shaw
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Patent number: 4521618Abstract: A process is disclosed for preparing coated catalysts, inter alia, for gas phase oxidations in organic chemistry, comprised of an inert support and a coating of catalyst material enclosing this support, wherein a suspension of the starting material for the coating is sprayed onto an agitated bed of the support, while the suspending medium is being partially removed by a gas stream, and the raw material is then dried and heat-treated. For this purpose, the support bed is mechanically agitated and loosened by a gas stream blown in from below. The catalyst precursor containing a binder and, if appropriate, a pore-former is sprayed in an increasing amount from above onto the bed, the ratio between suspending medium sprayed on and drawn off remaining about constant. The thermal expansion coefficient of the precursor as a dry powder must not deviate by more than 15% from that of the support.Type: GrantFiled: October 18, 1983Date of Patent: June 4, 1985Assignee: Degussa AktiengesellschaftInventors: Dietrich Arntz, Gunter Prescher, Werner Burkhardt, Johannes Heilos, Reinhard Manner
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Patent number: 4511671Abstract: A catalyst for manufacturing methacrolein by the vapor phase oxidation of isobutylene or tertiary butanol, said catalyst having the composition represented by the following formulaMo.sub.a W.sub.b Bi.sub.c Fe.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwhereinA represents at least one element selected from the group consisting of nickel and cobalt,B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium,C represents at least one element selected from the group consisting of tellurium, antimony, tin, cerium, lead, manganese and zinc,D represents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium,a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and O, and whena is fixed at 12,b is from 0 to 10,c is from 0.1 to 10,d is from 0.Type: GrantFiled: September 1, 1983Date of Patent: April 16, 1985Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Noboru Saito, Takeshi Satake, Ryuji Aoki, Isao Nagai
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Patent number: 4473705Abstract: A process for producing an oxalate diester is provided. The oxalate diester is produced by reacting an aliphatic alcohol, carbon monoxide and molecular oxygen at an elevated temperature and under pressure in the presence of a catalyst comprising (1) metallic palladium or a palladium compound, (2) a heteropoly-acid and (3) at least one nitrogen compound selected from the group consisting of nitric acid, nitrogen oxides and esters of nitrous acid.Type: GrantFiled: December 21, 1982Date of Patent: September 25, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hiroshi Miyamori, Tadashi Simomura, Mituo Miura, Katsushige Hayashi