| Patent Number |
Title Of Patent |
Date Issued |
| 6818189 |
Tubular reactor with gas injector for gas phase catalytic reactions |
November 16, 2004 |
| A continuous flow chemical reaction apparatus comprises a tubular reactor having a length and having a first fluid reactant inlet at a first end and a product outlet at a second end, said tubular reactor having a central tube/interior conduit extending lengthwise within said tubular reac |
| 6794332 |
Highly selective shell impregnated catalyst of improved space time yield for production of vinyl |
September 21, 2004 |
| A shell impregnated catalyst of Pd--Au produced on a silica support by impregnating the support with aqueous solutions of palladium and gold salts or acids and thereafter precipitating water insoluble compounds of Pd and Au on the support with alkali metal silicate or hydroxide fixing |
| 6784333 |
Catalyst for aromatization of alkanes, process of making and using thereof |
August 31, 2004 |
| A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The cat |
| 6784263 |
Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polym |
August 31, 2004 |
| A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts as a support. The catalyst component is combined with co-catalyst organoaluminum compound or |
| 6696594 |
Process for the conversion of aldehydes to esters |
February 24, 2004 |
| A process for the conversion of aldehydes to esters, specifically acrolein or methacrolein to methyl acrylate or methyl methacrylate, respectively. Essentially in the absence of water, an aldehyde is contacted with an oxidizing agent to form an intermediate and then the intermediate is |
| 6646158 |
Catalytic oxidation of alkanes to corresponding acids |
November 11, 2003 |
| A mixed metal oxide Mo--V--Ga--Pd--Nb--X catalytic system, where X is selected from La, Te, and Zn, provides the oxidation of C.sub.2 -C.sub.8 hydrocarbons to corresponding acids with a molecular oxygen-containing gas. |
| 6638891 |
Molybdenum and vanadium based catalysts for the oxidation of alkanes to carboxylic acids and ole |
October 28, 2003 |
| A mixed metal oxide catalytic system for producing olefins and carboxylic acids from lower alkanes comprising a catalyst composition having the formula |
| 6620973 |
Catalysts for oxidation of lower olefins to unsaturated aldehydes, methods of making and using t |
September 16, 2003 |
| A catalyst composition for the production of unsaturated aldehydes by the oxidation of the corresponding olefins, and methods of making and using such catalyst compositions. The catalysts of the present invention include compositions of the formula:wherein X.sup.1 is an element selected |
| 6617277 |
Supported metallocene catalyst system for olefin polymerization |
September 9, 2003 |
| A catalyst composition has a catalyst component which includes a metallocene transition metal compound, a magnesium compound, a hydroxyl containing compound, and a polymeric material. The catalyst component may also include asilicon compound and an aluminum compound. The catalyst com |
| 6605739 |
Method for producing vinyl acetate monomer from ethane or ethylene oxidation |
August 12, 2003 |
| Methods for the catalytic production of vinyl acetate monomer from ethane, ethylene or an ethanelethylene mixture using a first catalyst containing MoVNbPd, MoVLaPdbX (where X is Al, Ga, Ge or Si) or MoVNbX (where X is P, B, Hf, Te, As or mixtures thereof) in the first step of oxidation |
| 6600078 |
Liquid phase catalytic hydrogenation process to convert aldehydes to the corresponding alcohols |
July 29, 2003 |
| A heterogeneous liquid-phase process for the hydrogenation of aldehydes of Formula (I) and (III) to the corresponding alcohols of Formula (II) and (IV) which process comprises contacting alcoholic or aqueous-alcoholic solution of aldehydes and hydrogen gas with a catalyst comprising a |
| 6569964 |
Alumoxane-enhanced, supported Ziegler-Natta catalysts, methods of making same, processes of usin |
May 27, 2003 |
| The invention relates to an improved olefin catalyst, a method of in situ-activated catalyst preparation and a process for the polymerization of olefinic monomers via, for example, a titanium trichloride/magnesium dichloride/tetrahydrofuran reaction product catalyst precursor. The ac |
| 6541418 |
Catalyst systems for the oxidative dehydrogenation of hydrocarbons |
April 1, 2003 |
| A new catalyst system is disclosed for the production of olefins through oxidative dehydrogenation of hydrocarbons. The catalyst system having the atomic ratios described by the empirical formula Bi.sub.a Ni O.sub.b /Al.sub.2 O.sub.3. |
| 6531631 |
Oxidation of ethane to acetic acid and ethylene using molybdenum and vanadium based catalysts |
March 11, 2003 |
| A process for producing olefins and carboxylic acids from lower alkanes using a mixed metal oxide catalytic system comprising a catalyst having the formulawherein: X is at least one element selected from the group consisting of W and Mn; Y is at least one element selected from the grou |
| 6486091 |
Process for making highly active and selective catalysts for the production of unsaturated nitri |
November 26, 2002 |
| An improved catalyst for the production of unsaturated nitrites from their corresponding olefins, the catalyst having the atomic ratios described by the empirical formula Bi.sub.a Mo.sub.b V.sub.c Sb.sub.d Nb.sub.e A.sub.f B.sub.g O.sub.x and methods of making and using the same. |
| 6448348 |
Process for polymerizing olefins with supported Ziegler-Natta catalyst systems |
September 10, 2002 |
| A catalytic polymerization process for preparing polymer products is provided. The polymerization process is either homopolymerization of olefins or copolymerization of olefins with alpha-olefins. The polymerization process is conducted in the presence of a solid catalyst precursor a |
| 6413901 |
Highly active, supported ziegler-natta catalyst systems for olefin polymerization, methods of ma |
July 2, 2002 |
| A catalyst composition for alpha olefin polymerization is provided. The catalyst composition is prepared by a process including treating PVC containing particles with an organomagnesium compound in an inert solvent, contacting the treated PVC containing particles with a transition metal |
| 6403520 |
Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polym |
June 11, 2002 |
| A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts as a support. The catalyst component is combined with co-catalyst organoaluminum compound or |
| 6383977 |
Catalysts for producing acetic acid from ethane oxidation, processes of making the same and meth |
May 7, 2002 |
| An oxide catalyst comprising the elements Mo, V, Nb and Pd. The novel catalytic system provides both higher selectivity and yield of acetic acid in the low temperature one step vapor phase direct oxidation of ethane with molecular oxygen containing gas without production of side products |
| 6288182 |
Supported metallocene catalyst system for olefin polymerization |
September 11, 2001 |
| A catalyst composition has a catalyst component which includes a metallocene transition metal compound, a magnesium compound, a hydroxyl containing compound, and a polymeric material. The catalyst component may also include asilicon compound and an aluminum compound. The catalyst com |
| 6224843 |
Carbon dioxide purification in ethylene glycol plants |
May 1, 2001 |
| A process is provided for production of substantially pure carbon dioxide from a CO.sub.2 off-gas stream from an ethylene glycol plant. Water is condensed from an off-gas stream which contains unsaturated hydrocarbons, saturated hydrocarbons, chlorinated hydrocarbons, carbon dioxide and |
| 5877376 |
Conversion of ethylene into butene-1 using additives based on quarternary ammonium salts |
March 2, 1999 |
| The invention concerns an improved process for the conversion of ethylene into butene-1, wherein the ethylene is brought into contact with a catalyst obtained by the reaction of an alkyl titanate, possibly mixed with an ether, with a compound of aluminium of the formula AlR.sub.3 or |
| 5512176 |
Desalination process |
April 30, 1996 |
| Polyurethane polymers useful as hydrogels wherein the polyol is a specific polyol of block copolymers and a method for desalination of water. |
| 5354835 |
Desalination process |
October 11, 1994 |
| Polyurethane polymers useful as hydrogels wherein the polyol is a specific polyol of block copolymers and a method for desalination of water. |
