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Class 502/215 - Selenium or tellurium or compound containing same


Subclass of Class 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Definition: Composition including either element 34 or 52, free or chemically
No. of patents: 192
Last issue date: 01/10/2012


1          
NumberTitleIssue Date
8093175Mineral composition capable of trapping hydrogen, preparation method and uses
The invention relates to a composition capable of trapping hydrogen comprising: (a) at least one mineral compound of formula (I) below: MX(OH)  (I) in which: M represents a divalent transit...
01/10/2012
7923171Cathode catalyst for fuel cell, and membrane-electrode assembly for fuel cell and fuel cell system including same
A cathode catalyst of the present invention includes an A-B-Ch compound, where A is a metal selected from the group consisting of Pt, Ru, Rh, and combinations thereof, B is a metal selected from the group consisting of Bi, Pb, Tl, Sb, Sn, In, Ga, Ge, and combination...
04/12/2011
7919428Method of making mixed metal oxide catalysts for ammoxidation and/or oxidation of lower alkane hydrocarbons
The present invention comprises a method for preparing a mixed oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutene by ammoxidation in a gaseous phase via methods of heating or calcining precursor solid mixture to obtain m...
04/05/2011
7638458Complex metal oxide catalyst with high (meth) acrylic acid selectivity
Disclosed are a Mo—Bi—Nb—Te based composite metal oxide; and a process for producing (meth)acrylic acid from at least one reaction material selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, wherein...
12/29/2009
7419932Method for preserving catalyst
The method for preserving a catalyst of the present invention is characterized in that, in a process for continuously producing an objective product by a vapor phase oxidation reaction using a phosphorus-molybdenum-vanadium catalyst containing phosphorus, molybdenum...
09/02/2008
7365041Method for producing ammoxidation catalyst
An ammoxidation catalyst comprising a molybdenum (component (1)), bismuth (component (2)), at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese and copper (component (3)) and at least one element selected from the gro...
04/29/2008
7348291Catalyst for the manufacture of acrylonitrile
A catalyst comprising a complex of catalytic oxides comprising potassium, cesium, cerium, chromium, cobalt, nickel, iron, bismuth, molybdenum, wherein the relative ratios of these elements is represented by the following general formula AaK...
03/25/2008
7338917Purification catalyst for exhaust gas
A purification catalyst for exhaust gas enhances the activity for each precious metal by effectively utilizing the precious metal without incurring a high production cost, thereby improving endurance. The purification catalyst for exhaust gas comprises a composite o...
03/04/2008
7229946Catalyst composition for the selective conversion of alkanes to unsaturated carboxylic acids, method of making and method of using thereof
A catalyst composition having the formula: Mo1VaSbbNbcMdOx wherein M is gallium, bismuth, silver or gold, a is 0.01 to 1, b is 0.01 to 1, c is 0.01 to 1, d is 0.01 to 1 and x is de...
06/12/2007
7223713Molybdenum sulfide/carbide catalysts
The present invention provides methods of synthesizing molybdenum disulfide (MoS2) and carbon-containing molybdenum disulfide (MoS2-xCx) catalysts that exhibit improved catalytic activity for hydrotreating reactions involving hydrode...
05/29/2007
7132386Preparation of amorphous sulfide sieves
The present invention involves methods and compositions for synthesizing catalysts/porous materials. In some embodiments, the resulting materials are amorphous sulfide sieves that can be mass-produced for a variety of uses. In some embodiments, methods of the invent...
11/07/2006
7125820Non-noble metal catalysts for the oxygen reduction reaction
Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A RuxSe catalyst is prepared with comparable catalytic activity to platinum. An environmentally friendly aqueous ...
10/24/2006
7122707Method for producing an annular shell catalyst and use thereof for producing acrolein
Coated catalysts which are suitable for the gas-phase catalytic oxidation of propene to acrolein are prepared by a process in which rings are used as supports and water is used as a binder. ...
10/17/2006
7091377Multimetal oxide materials
A multimetal oxide material contains the elements Mo, V and Te and/or Sb and at least one of the elements Nb, Ti, W, Ta and Ce and promoters and has a specific X-ray diffraction pattern. Moreover, such a multimetal oxide material is used as a catalyst for heterogene...
08/15/2006
7071140Catalyst for the manufacture of acrylonitrile
A catalyst comprising a complex of catalytic oxides comprising rubidium, cerium, chromium, iron, bismuth, molybdenum, and at least one of nickel or nickel and cobalt, optionally magnesium, and optionally one of phosphorus, antimony, tellurium, sodium, lithium, potas...
07/04/2006
7045481Nanocatalyst anchored onto acid functionalized solid support and methods of making and using same
Supported catalysts include a solid support such as silica that is functionalized to have inorganic acid functional groups attached thereto. Active catalyst particles are supported on the functionalized support material. The acid functionalized support material is m...
05/16/2006
7038082Preparation of a multimetal oxide material
A process for preparing a multimetal oxide material which contains the elements Mo, V and Te and/or Sb and at least one of the elements Nb, Ti, W, Ta and Ce and if desired promoters and has a specific X-ray diffraction pattern, in which process the last process step...
05/02/2006
RE39074Process for the selective preparation of acetic acid using a molybdenum and palladium based catalytic oxide
The present invention relates to a process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a catalyst co...
04/18/2006
7019165Polyoxometallate catalysts and catalytic processes
An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activate...
03/28/2006
7018604Compounds for novel proton conducting membranes and methods of making same
The present invention provides new compounds for use in proton exchange membranes which are able to operate in a wide variety of temperature ranges, including in the intermediate temperature range of about 100° C. to 700° C., and new and improved methods of making...
03/28/2006
6946422Preparation of mixed metal oxide catalysts for catalytic oxidation of olefins to unsaturated aldehydes
A process for making a catalyst containing oxides of molybdenum, bismuth, iron, cesium and, optionally, other metals, such as tungsten, cobalt, nickel, antimony, magnesium, zinc, phosphorus, potassium, rubidium, thallium, manganese, barium, chromium, boron, sulfur, ...
09/20/2005
6921831Modified BiMo catalyst and process for use thereof
Modified lead/bismuth/molybdate catalysts containing vanadium, copper, or gold have been prepared, and are selective to the corresponding furan compound from the gas phase oxidation of an unsaturated acyclic hydrocarbon such as butadiene. ...
07/26/2005
6914029Polyoxometallate catalysts and catalytic processes
An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activate...
07/05/2005
6825380Promoted multi-metal oxide catalyst
A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken...
11/30/2004
6797840Promoted multi-metal catalyst
A catalyst comprising an In promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and a...
09/28/2004
6790988Ir and/or Sm promoted multi-metal oxide catalyst
A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken...
09/14/2004
6734136IR and/or SM promoted multi-metal oxide catalyst
A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken...
05/11/2004
6610629Process for producing an oxide catalyst for oxidation or ammoxidation
Disclosed is a process for producing an oxide catalyst comprising, as component elements, molybdenum (Mo), vanadium (V), at least one element selected from the group consisting of the two elements of antimony (Sb) and tellurium (Te), and niobium (Nb), whe...
08/26/2003
6518216Catalyst useful for oxidation of alkanes
A catalyst useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids is disclosed. Processes for preparing the catalyst and using the catalyst to convert alkanes to unsaturated aldehydes or carboxylic acids are also disclo...
02/11/2003
6479691Catalyst for producing unsaturated nitrile
A catalyst composition represented by the following empirical formula which is useful in production of unsaturated nitrites by ammoxidation: Mo10 Bia Feb Sbc Nid Cre Ff Gg ...
11/12/2002
6426312Air purifying matrix for the oxidation of air-borne particulate and gases
The present invention is an air purifying matrix to remove, reduce or detoxify organic pollutants. The matrix has an inert substrate, a photoreactive semiconductor material, and aqueous particles. The inert substrate is water absorbent, transparent to ult...
07/30/2002
6355817Optimized catalyst addition to enhance esterification catalyst performance
The present invention provides a process for the production of an ester, including reacting an alcohol with a carbonyl-like compound in the presence of a first esterification catalyst; and adding a second esterification catalyst to the reaction mixture at...
03/12/2002
6350716Catalyst and process for the oxidation of ethane and/or ethylene
A catalyst composition for the selective oxidation of ethane and/or ethylene to acetic acid which composition comprises in combination with oxygen the elements: MOa.W.sub.b.Ag.sub.c.Ir.sub.d.X.sub.e.Y.sub.f (I) wherein X is the elements Nb and ...
02/26/2002
6211114Catalyst and process for preparing 2-buten-1-ol compounds
The fixed-bed catalyst comprises palladium and selenium or tellurium or a mixture of selenium and tellurium on a silicon dioxide support and has a BET surface area of from 80 to 380 m2 /g and a pore volume of from 0.6 to 0.95 cm3 /g ...
04/03/2001
6194610Process for the selective preparation of acetic acid using a molybdenum and palladium based catalytic oxide
The present invention relates to a process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a ...
02/27/2001
6171571Crystalline multinary metal oxide compositions, process for preparing and processes for using the composition
A new family of crystalline metal oxide compositions have been synthesized. These compositions are described by the empirical formula: An NbMx M'y M"m Op where A is an alkali metal cation, ammonium ion and mixt...
01/09/2001
6072070Vanadium/antimony/titanium mixed oxide and process of use in vapor phase ammoxidation of an alkane
Mixed oxide vanadium/antimony/titanium ammoxidation catalysts, particularly suited for the ammoxidation of alkanes and exhibiting X-ray diffraction spectra which are characteristic of a crystallographic phase of rutile TiO2, are prepared by (a)...
06/06/2000
6043186Ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation
An ammoxidation catalyst comprising a compound oxide which contains, in specific atomic ratios, molybdenum; vanadium; niobium; at least one element selected from tellurium and antimony; and at least one element selected from ytterbium, dysprosium, erbium,...
03/28/2000
6042807Tellurium-containing molecular sieves
Zeolites containing silicon, titanium and tellurium oxides are prepared by a hydrothermal method which yields materials containing exceptionally high levels of catalytically active Ti species. Following calcination, the molecular sieves are active and sel...
03/28/2000
6022986Manganiferous polyoxometallates, synthesis and use thereof
The invention is directed to manganese-containing polyoxometallates of the formula (1) (Q)q (Mnp Aa Xx Yy Mm Od Zz (H2 O)b)cH2 O ...
02/08/2000
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