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6645904 |
Aminophosphonium compounds
The present invention relates to compounds of the formula in which one, two or three of the radicals R 1 , R 2 , R 3 and R 4 are where m and n are an integer from 1 to 10, R 5 , R 6 , R 7 ...
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6638892 |
Syngas conversion and catalyst system employed therefor
A process for the conversion of syngas by contact of syngas under conversion conditions with catalyst having as components zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay in which (A)...
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6638888 |
Mesoporous alumina gel and process for its preparation
The present invention relates to a mesoporous gel comprising an alumina matrix in which one or more oxides selected from silica, boron oxide, phosphorus oxide, oxides of metals of groups VIII and...
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6627577 |
Hydrocarbon conversion catalyst and its use
There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a...
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6624326 |
Method for preparing heteropolyacid catalyst and method for producing methacrylic acid
A novel method for preparing a heteropolyacid catalyst containing a heteropolyacid composed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt of the heteropolyacid, is...
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6610804 |
Iron-based catalyst composition for the manufacture of syndiotactic 1, 2-polybutadiene
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an iron-containing compound, (b) an α-acylphosphonate diester, and (c) an organoaluminum...
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6600011 |
Process for purification and drying of polymer hydrogels
This invention relates to a method for purifying and drying a polymer hydrogel. This invention is based in part upon the discovery that rapid drying of polymer hydrogels can eliminate the problem...
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6599856 |
Formed activated carbon and process for producing the same
A formed activated carbon has a Kiya crushing strength of 1 kg or more and a specific heat of 0.4 J/K·cc or more at 25° C.
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6596156 |
SAPO-11 molecular sieve, its synthetic method and a catalyst containing the molecular sieve
A SAPO-11 silicoaluminopihosphate molecular sieve, its preparation method, and a catalyst containing the same are disclosed. The X-ray diffraction data of the molecular sieve before removing the...
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6593447 |
Catalyst for polyester production and process for producing polyester with the same
A polyester having a good color tone, an excellent forming property and a high resistance to cohesion of foreign substance around a melt-spinning orifice when the polyester is melt-spun, is...
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6586545 |
Complexes based on four-membered cyclic anionic six-electron-donor ligands
A single-site olefin polymerization catalyst and method of making it are disclosed. The catalyst comprises an activator and an organometallic complex. The complex comprises a Group 3 to 10...
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6583330 |
Catalysts containing heteropolyanions usable in processes for conversion of paraffins
New catalysts that contain heteropolyanions of the 12-tungstophosphoric acid or the 12-tungstomolybdic acid, and, for some of these, at least one metal of group VIII, and that are deposited on...
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6576584 |
Method for producing hydrotreating catalyst
A method for producing a hydrotreating catalyst which relates to the production of a solid catalyst composed of a carrier impregnated with an active component, to give a catalyst for hydrotreating...
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6562752 |
Metallic sulphide catalysts, processes for synthesising said catalysts and use thereof
A catalyst containing a sulfide phase comprising (a) sulfur (b) and at least one element A selected form group IIIB, including the lanthanides and actinides, group IVB and group VB, and optionally...
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6541598 |
Composition comprising titanium and process therewith
A composition that can be used as catalyst is disclosed. The composition comprises, or is produced by combining, (A) a titanium compound; (B) either (i) a complexing agent, (ii) a combination of a...
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6540970 |
Method for the synthesis of molecular sieves
The present invention provides a method for the synthesis of MeAPO molecular sieves which includes the following steps: providing a source of alumina, a source of phosphorus, water, and a template...
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6541663 |
Process for preparation of aminocarboxylic acids
Raney copper, which is doped (promoted) with an effective quantity of a doping (promoting) agent selected from the group boric acid, onium fluorides, salts of fluorine complex anions, and...
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6534435 |
Process for in situ synthesis of supported heteropoly acids and salts thereof
The present invention relates to a process for the in situ synthesis of acid or cationic form of heteropolyacid of molybdenum or tungsten due to the interaction of the cationic compound with the...
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6521562 |
Preparation of molecular sieve catalysts micro-filtration
A method of making a molecular sieve catalyst by preparing a catalyst slurry containing molecular sieve, binder and a matrix material and directing the slurry to a forming unit. The catalyst slurry...
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6521563 |
Silicoaluminophosphates having an ael structure, a method for their preparation and their use as naphtha cracking catalysts
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...
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6509289 |
Hydrodealkylation process and catalyst composition
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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6489433 |
Metal-containing composition and process therewith
A composition that can be used as catalyst is disclosed. The composition comprises, or is produced by combining, (A) a titanium compound; (B) either (i) a complexing agent, (ii) a combination of a...
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6486086 |
Simplified methods of manufacturing titanium silicate membranes
A simplified method of forming a porous crystalline titanium silicate membrane comprises preforming a mass of titanium dioxide particles into a consolidated preform such as by pressing into a thin...
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6479141 |
Photocatalytic coating composition and product having photocatalytic thin film
A photocatalytic titanium dioxide coating composition is described, which comprises (a) finely-divided titanium dioxide particles exhibiting photocatalytic activity, (b) particles of an inorganic...
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6476259 |
Catalysts for methacrylic acid production and process for producing methacrylic acid
Improved catalyst for use in production of methacrylic acid by vapor phase oxidation reaction and/or vapor phase oxidative dehydrogenation reaction of at least one compound selected from...
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6471923 |
Process for adsorbing and desording oxides of nitrogen
The invention concerns materials for adsorbing and desorbing oxides of nitrogen NO and NO 2 present in exhaust gases, in particular from the internal combustion engines of automotive vehicles...
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6472569 |
Silicoaluminophosphate material, a method of making such improved material and the use thereof in the conversion of oxygenated hydrocarbons to an olefin and/or an ether
A catalyst system comprising a silicoaluminophosphate impregnated with a compound selected from the group consisting of phosphoric acid, boric acid, tributyltin acetate, and combinations of any two...
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6440894 |
Methods of removing halogen from non-zeolitic molecular sieve catalysts
Methods of calcining non-zeolitic molecular sieve catalyst to remove most, if not nearly all, of halogen contained in the catalyst. One method includes heating the catalyst in a low moisture...
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6436869 |
Iron, cobalt and/or nickel containing ALPO bound SAPO molecular sieve catalyst for producing olefins
An aluminophosphate bound silicoaluminophosphate catalyst contains iron, cobalt and/or nickel is useful in a method of making a product including an olefin from a feedstock containing an oxygenate....
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6432867 |
Process for sulfurizing catalysts in a reducing medium
Sulfided catalysts produced by sulfurizing supported catalysts containing at least one element selected from group IIIB, including the lanthanides and actinides, group IVB and group VB, wherein the...
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6407029 |
Mixtures comprising tetrakis(pyrrolidino/piperdino)phosphonium salts
The present invention relates to mixtures comprising from 70 to 99.5% by weight of a compound of the formula (R) 4 P + X − (1) and from 30 to 0.5% by weight of a compound of the formula (R) 3...
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6387842 |
Process for preparing oxygenates and catalysts therefor
This invention relates in part to a processes and catalysts for the conversion of a feedstock comprising carbon monoxide and hydrogen to a product stream comprising at least one of an ester, acid,...
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6387841 |
Polyoxometallate supported catalysts
Disclosed are catalysts situated on a polyoxometallate support. Also disclosed are methods of preparing these catalysts and processes for the conversion of alkanes to unsaturated organic compounds...
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6383973 |
Complex oxide catalysts and process for producing (meth) acrolein and (meth) acrylic acid
Complex oxide catalysts represented by the formula, Mo a W b Bi c Fe d A e B f C g D h E i O x (in which A is Ni or Co; B is Na, K, Rb, Cs or Tl; C is an alkaline earth metal; D is P, Te, Sb, Sn,...
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6383970 |
Solid acid catalyst
The present invention provides a solid acid catalyst developing high activity and exhibiting high durability in various organic reactions. That is, the present invention provides a solid acid...
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6372125 |
Catalyst comprising a group VIB metal carbide, phosphorous and its use for hydrodesulphurisation and hydrogenation of gas oils
The invention concerns a catalyst containing at least one amorphous oxide matrix, at least one carbide and phosphorous deposited on said catalyst or contained in the matrix, in which the carbide...
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6362309 |
Polymerization catalyst ligands, catalytic metal complexes and compositions and processes using and method of making same
New compositions, metal-ligand complexes and arrays are disclosed that catalyze the polymerization of monomers into polymers.
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6331502 |
Catalyst system containing a semilabile anionic ligand and a use of such catalyst system to produce α, β, -unsaturated carboxylic acids and their esters
The present invention relates to a novel catalyst system comprising a palladium metal source, a monodentate phosphorus ligand, anionic semilabile ligand, protonic acid, and proton source, and an...
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6316382 |
Process for sulphurizing catalysts by reduction followed by sulphurization
The invention concerns a process for sulphurizing supported catalysts containing at least one element selected from group IIIB, including the lanthanides and actinides, group IVB, group VB and...
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6303534 |
Silicoaluminophosphates having an AEL structure, and their preparation
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...
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6294493 |
Silicoaluminophosphates having an AEL structure
Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions and high catalytic cracking activity, a method for their preparation and their use as FCC catalysts. More...
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6291067 |
Photocatalytic powder for environmental clarification and powder-containing polymer composition thereof
A photocatalytic powder for environmental clarification, comprising finely divided titanium dioxide particles having a coating of porous calcium phosphate formed on at least part of the surface of...
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6291394 |
Process for improving 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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6284868 |
Functionalized carbon monoxide copolymers
In functionalized linear alternating carbon monoxide copolymers of carbon monoxide and at least one 1-alkene (A), compound (A) is an aryl derivative substituted with at least one terminal allyl...
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6281157 |
Self-catalytic bath and method for the deposition of a nickel-phosphorus alloy on a substrate
Disclosed are a self-catalytic bath and a method for the deposition of Ni--P alloy on a substrate. The bath comprises nickel sulfate, sodium hypophosphite as a reducing agent, acetic acid as a...
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6255534 |
Preparation of carbonyl compounds
Carbonyl compounds of the formula ##STR1## where R 1 is a hydrogen atom or an alkyl radical having from 1 to 3 carbon atoms, R 2 is a hydrogen atom, an unsubstituted or C 1 -C 3 ...
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6255537 |
Process for preparing poly(alkylene oxide)
There is provided a process for preparing a poly(alkylene oxide) by using a polymerization initiator which does not cause any problem on preparing and handling in the preparation of the...
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6242378 |
Process for sulphurizing catalysts in the presence of carbon and elemental sulphur
The invention concerns a process for sulphurising supported catalysts containing at least one element selected from group IIIB, including the lanthanides and actinides, group IVB and group VB, said...
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6241960 |
Method for preparation of small zeotype crystals
A method for the preparation of small zeotype crystals with controlled sizes comprising the steps of synthesizing inside a porous material having a majority of pores less than 1000 Å a synthesis...
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6207872 |
Metallo aluminophosphate molecular sieve with cubic 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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