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6200927 |
High activity catalysts
Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals, which catalysts in addition contain a nanocrystalline...
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6194346 |
Photocatalyst and method of making
Fluorine contained within a photocatalyst layer containing titanium oxide and other metallic oxide semiconductors increases the metallic oxide's photocatalytic activity. The described photocatalyst...
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6177380 |
Iridium-gold carbonylation co-catalysts
A carbon supported solid catalyst suitable for the vapor phase carbonylation of lower aliphatic alcohols, ethers, ester, and ester-alcohol mixtures, and desirably, methanol, to produce carboxylic...
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6159887 |
Vanadium traps for catalyst for catalytic cracking
A catalytic composition useful in the catalytic-cracking of hydrocarbons is described, which contains at least one agent causing the inactivation of vanadium, which may be present in the...
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6156931 |
Crystalline manganese (II/III) phosphate compositions
A new family of crystalline manganese phosphate compositions has been prepared. These compositions have an extended network which network can be a one-, two-, or three-dimensional network. The...
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6153552 |
Methods for making catalysts
Catalysts that are useful for hydrocarbon conversions and oxygenate conversions, and a method for making such catalysts. The method for making the catalysts comprises forming a mixture comprising...
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6153798 |
Catalysts for methanol conversion reactions
Dimethylamine is prepared from a reaction of methanol with ammonia or monomethylamine or a disproportionation reaction of monomethylamine, in the presence of a catalyst of silica-modified...
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6153553 |
Process for the polymerization of alpha olefins using a new aluminophosphate support
Novel catalysts are provided for the polymerization of olefins such as ethylene. These catalysts comprise a novel amorphous aluminophosphate comprising, on a microlevel, sheets of aluminophosphate...
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6149799 |
Catalyst compromising a mixed sulphide and its use for hydrorefining and hydroconverting hydrocarbons
The invention concerns a catalyst for hydrorefining and hydroconverting hydrocarbon feeds, comprising a mixed sulphide comprising at least two elements selected from elements with an atomic number...
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6143265 |
Conversion of metal oxide to metal phosphate
A metal oxide is treated with an organophosphate, such as a trialkyl phosphate, to convert the oxide to the corresponding phosphate. The metal in the oxide can be a transition metal, such as iron,...
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6140265 |
Catalyst for cross-coupling reactions
A catalyst system, in particular for carrying out cross-coupling reactions is obtainable by reacting a) a palladium(II) compound with b) a water-soluble phosphine ligand and c) a sulfoxide...
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6127307 |
Catalyst composition free from noble metals
A noble metal-free catalyst composition is obtainable by a) preparing an aqueous mixture comprising i) a salt of at least one base metal selected from among the elements having atomic numbers...
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6124235 |
Accelerator system for crosslinking polymers which harden on exposure to the moisture in air
An accelerator system for the cold crosslinking of polymers which harden on exposure to moisture by hydrolysis/condensation, comprising: (C) x parts by weight of a catalyst for crosslinking the...
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6117956 |
Catalyst composition and polymerization process for producing syndiotactic 1,2-polybutadiene
The instant invention teaches a method for forming a syndiotactic 1,2-polybutadiene product having a higher syndiotacticity and a higher melting temperature than syndiotactic 1,2-polybutadiene...
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6103659 |
Catalyst comprising an amidophosphonium salt for halex reactions
Catalyst for halogen-fluorine exchange reactions on aromatics, consisting essentially of a mixture of one or more compounds of the component a) plus at least one compound of the components b), c)...
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6083870 |
Alkaline earth metal compound-supported silver catalysts
Propylene is oxidized to propylene oxide in the vapor phase using an oxygen-containing gas and a supported silver catalyst comprising silver and a support comprised in whole or in substantial part...
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6080697 |
Process for making a composition that is useful for converting lower value aromatics to higher value aromatics
A process to produce a composition is provided. Said process comprises: contacting a zeolite component, a silicon component, a Group 14 metal component, and a phosphorus component together to form...
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6051528 |
Amorphous alloy catalyst containing phosphorus, its preparation and use
An amorphous alloy catalyst containing nickel and phosphorus comprising a porous carrier, a Ni--P amorphous alloy supported on the carrier, and a pre-supported catalytic component for inducing and...
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6048819 |
Catalyst composition
A catalyst composition for use in the preparation of an organopolysiloxane comprises a γ-butyrolactone carrier and a phosphonitrile catalyst. Preferred phosphonitrile catalysts comprise Cl 3 ...
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6046128 |
Method of manufacturing catalyst for purifying exhaust gas
A method of manufacturing a catalyst for purifying exhaust gas, the catalyst including a pentasil-type crystalline aluminosilicate catalyst carrier carrying thereon a copper component and a...
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6043184 |
Heteropoly acids supported on polyoxometallate salts and their preparation
Alkanes are converted to unsaturated carboxylic acids by contacting an alkane with an oxidizing agent and a heteropolyacid supported on wide pore polyoxometallate salts.
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6040262 |
Catalyst and use thereof
The present invention relates to a catalyst composition comprising an acid supported on carrier characterised in that said composition comprises in addition an amino compound.
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6040264 |
Use of alkaline earth metal containing small pore non-zeolitic molecular sieve catalysts in oxygenate conversion
A method for converting starting material to olefins comprising contacting the starting material with a small pore non-zeolitic molecular sieve catalyst under effective conditions to produce...
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6037302 |
Hydrodealkylation of C.sub.9 + aromatic compounds
A catalyst composition and a process for hydrodealkylating a C 9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C 6 to C 8 aromatic hydrocarbon such as a xylene are...
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6037443 |
Thermoplastic elastomeric carbon monoxide/olefin copolymers
Linear, thermoplastic, elastomneric copolymers of carbon monoxide and olefinically unsaturated compounds have an alternating sequence of repeating units and an average molecular weight Mw of the...
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6037306 |
Catalyst containing molybdenum and/or tungsten for hydrotreating light oil distillates and preparation method thereof
A hydrotreating catalyst containing molybdenum and/or tungsten for light oil distillates, said catalyst contains tungsten oxide and/or moybdenum oxide, nickel oxide and cobalt oxide supported on an...
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6025529 |
Process for preparing aldehydes
A process for preparing aldehydes by hydroformylation of olefins or olefinically unsaturated compounds in the presence of a catalyst of at least one rhodium compound and a nonaqueous ionic ligand...
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6022513 |
Aluminophosphates and their method of preparation
Disclosed is a new aluminophosphate composition which is (i) amorphous; (ii) has, on a microlevel, sheets of aluminophosphate as well as spheres. The new composition can be made, in one embodiment,...
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6010975 |
Catalyst composition for preparing 3-pentenoic ester from butadiene
A catalyst composition for the preparation of 3-pentenoic ester from butadiene. The catalyst composition includes a palladium complex; and a bidentate phosphine with the following formula: 1 R 2 ...
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6010977 |
Preparation of sub-visual molecular aggregrates composed of antimony phosphate derivatives
The present invention relates to a process comprises mixing, at temperatures between about about 90° C. to 300° C., a first reactant solution comprising less than about 5×10 -3 moles/l of at...
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5993768 |
Mesoporous crystalline composition with a high surface area of a tetravalent metal which can be used as catalyst
Solid mesoporous crystalline composition of a pyrophosphate-phosphate of a tetravalent metal, with a high surface area and narrow distribution of the mesopores, having formula (I): M(P 2 O 7 ) 1...
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5985786 |
Packed silver-catalyst bed doped with phosphorus
A phosphorus-doped silver catalyst fixed bed is obtainable by I. arranging silver crystals obtained by electrolytic deposition of silver from an aqueous silver salt solution to form a starting...
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5981425 |
Photocatalyst-containing coating composition
A coating composition which is excellent in water resistance, weatherability and durability and can maintain its appearance for a prolonged period of time can be provided. A coating composition...
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5981812 |
Process for preparing α, ω-alkenols
The invention relates to a process for preparing α,ω-C 4 -C 20 -alkenols by catalytic monodehydration of α,ω-alkanediols over a catalyst system comprising the combination of aluminum...
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5976491 |
Synthesis of and composition of ECR-40, large pore aluminophosphate
The present invention is a large-pore aluminophosphate or substituted aluminophosphate comprising a composition aR:(M x Al y P z )O 2 wherein R represents an organic templating agent, and a=0...
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5972820 |
Methods of making stabilized crystalline alumina compositions, and alumina compositions and catalyst supports made therefrom
Methods of making substantially phase-pure and thermally stable crystalline alumina compositions stabilized with an oxide of silicon, germanium, phosphorus, arsenic or a mixture thereof. Also...
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5968866 |
Ethylene trimerization
Ethylene is trimerized to form 1-hexene by using a catalyst comprising an aluminoxane and polydentate phosphine, arsine, and/or stibine coordination complex of a chromium salt. Catalysts,...
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5965475 |
Processes an catalyst for upgrading waxy, paraffinic feeds
An improved catalyst for the production of lube oil blending components, and lube oils, from waxy, paraffinic feeds, a process for producing such catalyst, and a process utilizing this catalyst in...
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5948683 |
Catalyst for selective oxidation of unsaturated hydrocarbons and methods of making and using the same
A selective catalytic material is used to catalyze selective oxidation of unsaturated hydrocarbons, e.g., olefins, in the presence of carbon monoxide. The catalytic material comprises phosphated...
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5948721 |
Dispersing-type catalyst for hydrocracking of heavy oil and residuum, and a method for the preparation thereof
This invention discloses a dispersing-type catalyst for catalytic hydrocracking of heavy oil and residuum, the preparation method thereof and a suspension bed hydrocracking process for...
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5935898 |
Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production
Monomodal or polymodal catalyst supports or catalysts having a BET specific surface area of from 0.01 to 250 m 2 /g and a monomodal or polymodal pore size distribution having a mean pore diameter...
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5932512 |
Fluorination of synthesized molecular sieve catalysts for increased selectivity to ethylene during conversion of oxygenates to olefins
A method for fluorinating molecular sieve catalysts to increase selectivity to ethylene during conversion of oxygenates to olefins, fluorinated catalysts produced by such method, and methods of...
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5925589 |
Process for the manufacture of a support for olefin polymerization catalysts and process for the polymerization of olefins
Process for the manufacture of a support for olefin polymerization catalysts comprising silica, aluminium phosphate and optionally alumina, according to which a source of silica, chosen from...
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5925801 |
Process for preparing high-octane gasoline components, and a catalyst
A process for preparing high-octane gasoline components consists in that a feed stock, composed of isobutane and olefins, preferably butylenes, in a molar ratio between 1 and 40, is contacted at...
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5925586 |
Phosphorus modified small pore molecular sieve catalysts, and their use in the production of light olefins
A process for the modification of a small pore molecular sieve catalyst to increase its selectivity to ethylene in the production of light olefins from oxygenated compounds, particularly methanol....
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5922295 |
Sulfur-resistant NO.sub.x traps containing tungstophosphoric acid and precious metal
The invention is a nitrogen oxide trap comprising a porous support of alumina; and loaded thereon materials consisting essentially of particular amounts of: (I) tungstophosphoric acid and (II)...
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5922297 |
Silicophosphate compounds and method of making same
A compound having the general formula AM 1 +y 3 + M 2 -2y 4 + M y 5 + Si 2 P 6 O 25 , wherein A can be K, Rb, or Cs, M 3 + can be Al, Ga, Cr, Fe, Sc, In, Y, lanthanide series elements, or...
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5919724 |
Process for making phosphate stabilized metal oxide particles
A method for making catalyst particles having improved resistance to surface area loss through thermal degradation. The particles are preferably metal oxide particles and more preferably alumina...
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5912393 |
Metallo aluminophosphate molecular sieve with novel crystal morphology and methanol to olefin process using the sieve
A catalyst for converting methanol to light olefins along with the process itself are disclosed and claimed. The catalyst is a metalloaluminophosphate molecular sieve having the empirical formula...
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5912203 |
Process to synthesize a linear phosphonitrilic chloride catalyst
The present invention relates to a process for the synthesis of a linear phosphonitrilic chloride (LPNC) catalyst solution. The process involves mixing phosphorus pentachloride with a suitable...
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