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7172990 |
Highly active spherical metal support catalysts
The invention relates to highly active spherical metal support catalysts with a metal content of 10 to 70% by mass, and a process for their production with the use of a mixture of polysaccharides...
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7172989 |
Catalytic hydrogenation over rhenium-containing catalysts supported on activated carbon
In a process for preparing alcohols by catalytic hydrogenation of carbonyl compounds over a catalyst comprising rhenium on activated carbon, the catalyst used comprises rhenium (calculated as...
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7172988 |
Catalyst component for ethylene polymerization, a process for preparing thereof and catalyst comprising the same
A catalyst component for ethylene polymerization, including an inorganic oxide support, and at least one alkyl metal compound, at least one halide, at least one dihydrocarbyl magnesium compound, at...
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7172987 |
Bimetallic catalyst, method of polymerization and bimodal polyolefins therefrom
Bimetallic catalysts, and methods of producing a bimetallic catalyst comprising a modified Ziegler-Natta catalyst and a metallocene are provided, in one embodiment the method including combining:...
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7172986 |
Catalytic composition and its preparation and use for preparing polymers from ethylenically unsaturated monomers
A catalytic composition, including a cationic metal-pair complex, is disclosed, along with a method for its preparation. A method for the polymerization of ethylenically unsaturated monomers using...
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7172747 |
Metal oxide nanotube and process for production thereof
Spiral shaped fibers were utilized to prepare completely novel metal oxide nanotubes comprising solely metal oxides. The metal oxide nanotubes comprise solely a hollow cylinder shaped metal oxide...
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7172685 |
Desulfurization system with novel sorbent transfer mechanism
A hydrocarbon desulfurization system employing regenerable solid sorbent particulates in a fluidized bed desulfurization reactor. The sulfur-loaded sorbent particulates are continuously withdrawn...
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7169956 |
Double metal cyanide complex catalyst, its production process and its utilization
Provided is a double metal cyanide complex catalyst with a high activity which is readily produced on an industrial scale. The double metal cyanide complex catalyst is of a fine particle form and...
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7169875 |
Organometallic compositions
A composition suitable for use as a catalyst for the reaction of an isocyanate compound or prepolymer thereof with an alcohol to form a polyurethane comprises a mixture of (a)an organometallic...
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7169866 |
Process for preparing homopolymers, copolymers and/or block copolymers by living polymerization with metallocenes having a donor-acceptor interaction
The present invention relates to a process for preparing homopolymers, copolymers and/or block copolymers of 1-olefins by living polymerization, to the use of the homopolymers, copolymers and/or...
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7169865 |
Transition metal compounds having a donor-acceptor interaction and a specific substitution pattern
The present invention relates to compounds in which a transition metal is complexed by at least two ligand systems and at least two of the systems are reversibly joined to one another by at least...
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7169864 |
Metallocene catalysts, their synthesis and their use for the polymerization of olefins
A process for the preparation of a catalyst system includes the steps of combining a support material with a first composition which includes at least one aluminoxane in a first solvent to provide...
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7169863 |
Salts of lewis acid/acid adducts and catalyst activators therefrom
A compound useful as a cocatalyst or cocatalyst component, especially for use as an addition polymerization catalyst compound, corresponding to the formula: (A* +a ) b (Z*J* j ) −c d , wherein:
...
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7169736 |
Catalyst for hydrogenation of unsaturated hydrocarbons
A catalyst is described for hydrogenation of unsaturated hydrocarbons, containing catalytically active amounts of Pd and optionally Ag in a support. The catalyst is characterized by the fact that...
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7169735 |
Catalyst and process for preparing the same
The object of the present invention is to provide a catalyst that is highly active and capable of maintaining its activity for a long period of time even in a high-temperature environment. The...
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7169734 |
Exhaust gas purifying catalyst and method of producing same
An exhaust gas purifying catalyst for an internal combustion engine of an automotive vehicle. The exhaust gas purifying catalyst comprises a monolithic substrate. A first catalytic layer is formed...
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7169733 |
Visible light-induced photocatalyst
A visible light induced, highly oxidative, and highly reductive photocatalyst. The photocatalyst includes a first semiconductor with a bandgap between valence band and conduction band thereof...
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7169732 |
Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof
A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four...
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7169731 |
Method for the synthesis of a fuel cell electrocatalyst
A method for forming a supported metal-containing powder. The method comprises forming a dispersion of a particulate support in a solution, which comprises a solvent and a dissolved metal. Heat is...
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7169730 |
Modified carbide and oxycarbide containing catalysts and methods of making and using thereof
Compositions including modified carbide-containing nanorods and/or modified oxycarbide-containing nanorods and/or modified carbon nanotubes bearing carbides and oxycarbides and methods of making...
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7169729 |
Use of zinc derivatives as cyclic ester polymerization catalysts
The invention concerns the use of zinc derivatives of general formula (I) wherein: L 1 represents a group of formula: —E 14 (R 14 )(R′ 14 )(R″ 14 ), —E 15 (R 15 ) (R′ 15 ) or —E 16 (R...
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7169728 |
Photo-functional powder and applications thereof
A condensed phosphate containing an alkaline earth metal is caused to be present on the surface of titanium dioxide fine particles, and as a result, the condensed phosphate is firmly coupled with...
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7169727 |
Process for forming a ziegler-natta catalyst system having a controlled morphology
A pre-catalyst is formed by reacting butylethylmagnesium with an alcohol to form a magnesium alkoxide compound, followed by contacting the magnesium alkoxide compound with a phosphorous compound to...
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7169726 |
Catalyst for isomerization of solid fischer-tropsch paraffins and method for its production
The present invention relates to a catalyst which consists of a combination of zeolite and platinum or palladium on aluminum oxide. The catalyst is suitable for converting solid Fischer-Tropsch...
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7169498 |
Fuel cell and method for making the same
In a fuel cell comprising a tubular casing, an electrolyte layer received in the tubular casing, and a pair of gas diffusion electrodes interposing the electrolyte layer and defining a fuel gas...
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7169430 |
Low trans-stereoisomer shortening systems
Shortening systems are prepared which include hydrogenated edible oils that are hydrogenated in a manner to minimize the formation of trans-stereoisomers. A conditioned catalyst is used which...
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7169376 |
Method for making hydrogen using a gold containing water-gas shift catalyst
The present invention relates to a method for making hydrogen comprising contacting in a water-gas shift reaction zone a feed comprising carbon monoxide and water under water-gas shift conditions...
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7169298 |
Method and apparatus for separating polynucleotides using monolithic capillary columns
Methods and devices based on capillary monolithic columns, preferably consisting of an underivatized poly(styrene-divinylbenzene) monolith, for separating a mixture of polynucleotides by ion...
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7169294 |
Hydroprocessing catalyst and use thereof
The invention pertains to a hydroprocessing catalyst suitable for the conversion of heavy hydrocarbon oils, which comprises 7–20 wt. % of Group VI metal, calculated as trioxide, and about 0.5–6...
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7169196 |
Fuel or fuel additive containing doped cerium oxide nanoparticles
A fuel or fuel additives is disclosed which includes particles of cerium oxide which have been doped with a divalent or trivalent metal or metalloid which is a rare earth metal, a transition metal...
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7166684 |
Transition metal compound, catalyst for olefin polymerization and method for producing polyolefin
A novel transition metal compound wherein the transition metal belongs to group 4 of the periodic table and the transition metal compound has a hydrogen atom ligand and three cyclopentadienyl...
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7166682 |
Process to prepare a particulated metallocene catalyst with a modified aluminoxane and use in polymerization of olefins
A process for the preparation of an olefin polymerisation catalyst comprising: a) reacting an aluminoxane and a Lewis base in an optionally halogenated hydrocarbon solvent to form a particulate...
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7166557 |
Process for the preparation of a microspheroidal catalyst
Process for preparing a catalyst active for the fluid bed acetoxylation of ethylene to produce vinyl acetate. The process comprises the steps of (a) impregnating microspheroidal silica support...
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7166556 |
Isoparaffin-olefin alkylation
A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as a...
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7166555 |
Coated ceramic catalyst supports and method
Porous ceramic catalyst supports are pre-coated with a passivation layer prior to applying a catalyst or catalyst support coating, the passivation layer consisting of a coating of a liquid mixture...
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7166554 |
Photocatalyst
To provide a photocatalyst having a photocatalytic activity far higher than that of flavin, and being excellent in stability as a catalyst. A photocatalyst comprising a flavin-rare earth metal ion...
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7166553 |
Mixed catalyst compositions for the production of polyolefins
A solid, hydrocarbon insoluble catalyst composition comprising: A) a solid, particulated complex comprising moieties of at least magnesium, a Group 4 transition metal, and a halide; B) one or more...
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7166268 |
Catalyst for hydrocarbon reforming and method of reforming hydrocarbon with the same
The present invention provides a catalyst suitably employed in a variety of hydrocarbon reforming processes and a hydrocarbon reforming process including employing the catalyst in production of...
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7166267 |
Solid solutions, applicable as catalysts, with perovskite structure comprising noble metals
Materials with a perovskite structure in form of solid solutions with general formula: A z Zr 1−x B x O 3 Where A is Ba or a rare earth element, B is Pt, Ir, Rh or Ce z is 1 when A is Ba and is...
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7166265 |
Process for the assembly of ultrastable mesostructured organofunctional silica compositions
A process for the preparation of mesostructured organofunctional silica and silica-alumina compositions using a hydrolyzable organosilane compound is described. The process uses a water soluble...
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7166263 |
Ceria-based mixed-metal oxide structure, including method of making and use
A homogeneous ceria-based mixed-metal oxide, useful as a catalyst support, a co-catalyst and/or a getter has a relatively large surface area per weight, typically exceeding 150 m 2 /g, a structure...
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7166213 |
Solid compositions for selective adsorption from complex mixtures
The present invention relates to a solid and method useful in separating chemical components in a complex mixture when at least one of the chemical components of the mixture is capable of being...
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7164020 |
Preparation of metal amide complexes
A process for the preparation of a Group 4 metal amide complex comprising a monovalent or divalent Lewis base ligand the steps of the process comprising contacting a Group 4 metal amide with a...
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7163991 |
Fluoroalcohol leaving group for non-metallocene olefin polymerization catalysts
A catalyst composition and method for olefin polymerization are provided. In one aspect, the catalyst composition is represented by the formula α a β b γ g MX n wherein M is a metal; X is a...
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7163990 |
Polymerization catalyst
A complex of transition metal Ti, Fe, Co, Ni, Cr, Mn, Ta, Rh, Y, Sc, Ru, Pd, Zr, Hf, V or Nb and a mono-, bi-, tri-, or tetra-dentate ligand, wherein at least one of the donor atoms of the ligand...
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7163963 |
Chemically and thermally stabilized alumina for Fischer-Tropsch catalysts
This invention is generally related to the field of Fischer-Tropsch catalysts. In particular, the present invention is related to a Fischer-Tropsch catalyst and method of making same. More...
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7163908 |
Metathesis catalysts
The present invention relates to supported catalysts based on Re 2 O 7 /(—Al 2 O 3 for use in the preparation of cycloalkadienes in a metathesis reaction, a process for preparing cycloalkadienes...
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7163907 |
Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization
This invention relates to a catalyst system for the production of polyolefins comprising: (A) a Group IV B transition metal component represented by one of the two general formulae
wherein (C 5...
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7163906 |
Organochromium/metallocene combination catalysts for producing bimodal resins
This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a...
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7163905 |
Polymerization catalyst system using di-sec-butyldimethoxysilane for preparation of polypropylene
It has been discovered that using di-sec-butyldialkoxysilanes, such as di-sec-butyldimethoxysilane (DSBDMS), as external electron donors for Ziegler-Natta catalysts can provide a catalyst system...
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