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| Number | Title | Issue Date |
| 8178715 | Integrated process for the production of vinyl acetate from acetic acid via acetaldehyde This invention provides an integrated multistep economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form acetaldehyde. A... | 05/15/2012 |
| 8071806 | Integrated process for the production of vinyl acetate from acetic acid via ethylene This invention provides an integrated two stage economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethylene either... | 12/06/2011 |
| 8067634 | Process for producing allyl acetate A process for producing allyl acetate is disclosed. The process comprises reacting propylene, acetic acid, and oxygen in the presence of a supported palladium catalyst in an adiabatic reactor. ... | 11/29/2011 |
| 7855304 | Inorganic oxide extrudates An extrudate comprising an inorganic oxide and a comb-branched polymer is disclosed. The calcined extrudates are useful catalysts or catalyst supports. A palladium-gold catalyst prepared with a calcined titania extrudate of the invention is useful in making vinyl ac... | 12/21/2010 |
| 7820853 | Integrated process for the production of vinyl acetate from acetic acid via ethyl acetate This invention provides an integrated three step economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form ethyl acetate ... | 10/26/2010 |
| 7638647 | Method for preparing (E3,Z5)-3,5-alkadienyl acetate Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydroly... | 12/29/2009 |
| 7304177 | Method for improving spreading properties of cosmetic ingredients Described is a method for improving the spreading properties of fatty alcohol containing cosmetic ingredients by providing a fatty alcohol containing starting material and adding an effective amount of acylating source [e.g., R1C)═O)OC(═O)R2 | 12/04/2007 |
| 7301048 | Process for isolating vinyl acetate A process for isolating vinyl acetate from the gas mixture formed in the reaction of ethylene with acetic acid and oxygen in the gas phase over catalysts comprising palladium or palladium compounds, with recirculation of the acetic-acid solution obtained in the circ... | 11/27/2007 |
| 7211688 | Process for the production of an alkenyl carboxylate or an alkyl carboxylate Process for producing an alkyl carboxylate, comprising contacting in an oxidation reaction zone a C2 to C4 alkane, a molecular oxygen-containing gas, the corresponding alkene and optionally water, in the presence of at least one catalyst active... | 05/01/2007 |
| 7205424 | Preparation of ruthenium-based olefin metathesis catalysts A synthetic method leading to the isolation of ruthenium-based olefin metathesis catalysts relies on the cross metathesis reaction between (L1)Ru(L2)(3-phenylindenylid-1-ene)Cl2 (where L1 and L2 can be two-elect... | 04/17/2007 |
| 7199077 | Fischer-tropsch catalyst prepared with a high purity iron precursor A Fischer-Tropsch catalyst comprising iron and at least one promoter is prepared via a method which comprises the preparation of a high purity iron precursor and which uses a nominal amount of water in the catalyst production. The catalyst particles prepared with th... | 04/03/2007 |
| 7189377 | Apparatus for performing integrated process for reproduction of vinyl acetate and/or acetic acid using a fluidized bed 1. Acetic acid and/or vinyl acetate are produced by an integrated process which comprises the steps:— (a) contacting in a first reaction zone a gaseous feedstock comprising ethylene and/or ethane and optionally steam with a molecular oxygen-containing... | 03/13/2007 |
| 7173148 | Process for producing 1-acetoxy-3-(substituted phenyl)propene compound The compounds represented by the formula (I) are produced by reacting benzene compound of the formula (IV) or (V) with alkenylidene diacetate of the formula (VI) in the presence of a catalyst comprising one or more members selected from (a) halogenated boron compoun... | 02/06/2007 |
| 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 particles by the incipient wetness technique with an aqueous solution of ... | 01/23/2007 |
| 7151192 | Manufacturing process for the preparation of α,α-branched alkane carboxylic acids providing esters with an improved softness A manufacturing process for the preparation of α,α-branched alkane carboxylic acids, by reacting a mono-olefin or a precursor thereof, with carbon monoxide in the presence of a strong acid catalyst characterized in that the starting olefin is a dimmer C8 or trimer... | 12/19/2006 |
| 7030056 | Process for preparing a catalyst, the catalyst and a use of the catalyst A process for preparing a catalyst which process comprises the steps of: (a) introducing a Group 8 metal compound onto a carrier, (b) converting a first portion of the Group 8 metal compound on the carrier into met... | 04/18/2006 |
| 6987200 | Process for producing catalysts comprising nanosize metal particles on a porous support, in particular for the gas-phase oxidation of ethylene and acetic acid to give vinyl acetate The invention relates to a method for producing a catalyst containing one or several metals from the group of metals comprising the sub-groups Ib and VIIIb of the periodic table on porous support particles, characterized by a first step in which one or several precu... | 01/17/2006 |
| 6982340 | Process for producing an ester There is provided a process wherein a lower alkyl ester of a fatty acid derived from natural fats and oils and a lower alcohol containing 1 to 4 carbon atoms is produced in a lower sulfur content at lower costs without causing a reduction in yield and a deterioratio... | 01/03/2006 |
| RE38864 | Process for making n-butyl esters from butadiene Process for making a butyl ester from butadiene, comprising (a) reacting butadiene with a saturated aliphatic monocarboxylic acid to form a mixture of n-butenyl and secondary butenyl esters, (b) separating the n-butenyl ester from the secondary butenyl ester, and (c... | 11/01/2005 |
| 6900347 | Impurity inhibition in olefin metathesis reactions Reaction mixtures and methods using catalysts and reaction conditions to produce significantly improved yields (and thereby higher purity) of olefin metathesis products, with greatly reduced amounts of impurities. These techniques include in one instance reduction i... | 05/31/2005 |
| 6825149 | Highly selective shell impregnated catalyst of improved space time yield for production of vinyl acetate A shell impregnated catalyst of Pd-Au produced on a silica support to have a Pd loading of 1.8 g/L of catalyst to about 7.2 g/L and a Au to Pd weight ratio of 0.3 to 2.0 by impregnating the support with aqueous solutions of palladium and gold salts or acids and ther... | 11/30/2004 |
| 6818792 | Preparation of polymerizable compounds Polymerizable compounds are prepared and/or worked up using at least one liquid ring pump by a process in which a working liquid which contains a material stream from the preparation and/or working-up of the polymerizable compound is used in a liquid ring pump. ... | 11/16/2004 |
| 6696596 | Catalyst and method for producing vinyl acetate A process for preparing vinyl acetate in the gas phase from ethylene, acetic acid and oxygen or oxygen-containing gases over a catalyst, consisting essentially of palladium and/or its compounds, gold and/or its compounds and alkali metal compounds on a su... | 02/24/2004 |
| 6605739 | Method for producing vinyl acetate monomer from ethane or ethylene oxidation 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... | 08/12/2003 |
| 6602476 | Apparatus and process for heat exchange with fluid beds Apparatus and process for heat exchange with fluid beds comprises heat-exchange tubes located longitudinally with respect to the axis of a fluidization zone with a rectangular pitch, one side of which having a length at least one and a half times the leng... | 08/05/2003 |
| 6534434 | Chiral imidazolidinone-based catalyst composition and reaction system Acid addition salts of imidazolidinones are provided as catalysts for transforming a functional group within a first reactant by reaction with a second reactant. Exemplary first reactants are ,ଲ-unsaturated carbonyl compounds such as ,... | 03/18/2003 |
| 6472555 | Process for the production of esters from alcohols using acetic acid as acetylating and clays as catalysts The present invention relates to a process for the preparation of esters from alcohols using acetic acid as acetylating agent and clays as catalysts, which comprises the preparation of esters in a single step from the reaction of aliphatic, acyclic, cycli... | 10/29/2002 |
| 6420308 | Highly selective shell impregnated catalyst of improved space time yield for production of vinyl acetate A shell impregnated catalyst of Pd--Au produced on a silica support to have a Pd loading of 1.8 g/L of catalyst to about 7.2 g/L and a Au to Pd weight ratio of 0.3 to 2.0 by impregnating the support with aqueous solutions of palladium and gold salts or ac... | 07/16/2002 |
| 6388042 | Dimethicone copolyol esters The present invention relates to novel dimethicone copolyol ester compounds bearing a fatty group attached through a hydrophobic ester linkage to silicon. This invention also relates a series of such products having differing amounts of water-soluble grou... | 05/14/2002 |
| 6348623 | Polymers of 3-butene esters, their preparation and use The specification describes various polymers having monomer of formula (I): ##STR1## In formula (I), R1 and R2 are, independently, hydrogen, a C1 -C24 alkyl group, an aromatic or heteroaromatic group, a C3 -C8 c... | 02/19/2002 |
| 6348622 | Vitamin a related compounds and process for producing the same There is provided a compound of the formula[I]: ##STR1## wherein R represents a hydrogen atom or a protective group for a hydroxyl group; and A represents a hydrogen atom, a halogen atom or a group of the formula A1: ##STR2## Q represents Q3: ##STR3#... | 02/19/2002 |
| 6322838 | Mint and/or fruit flavor compositions A flavor composition comprising 8-ocimenyl esters of the formula ##STR1## wherein one of the two radicals R1 and R2 is methyl and the other is vinyl and one of the two radicals R3 and R4 is methyl and the other ... | 11/27/2001 |
| 6278016 | Methods for conversion of isoprene to prenyl alcohol and related compounds Methods for preparing ester derivatives of 3-methyl-2-buten-1-ol (prenyl alcohol) from 2-methyl-1,3-butadiene (isoprene) and alkanoic acids in the presence of an inorganic acid catalyst are disclosed. The resultant prenyl ester (e.g., prenyl acetate) can ... | 08/21/2001 |
| 6278031 | Catalyst 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 ... | 08/21/2001 |
| 6274531 | Vinyl acetate catalyst comprising metallic palladium and gold, and cupric acetate A catalyst for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid comprising a porous support on the porous surfaces of which is deposited catalytically effective amounts of metallic palladium and gold, and cupric acetate. Use... | 08/14/2001 |
| 6258978 | Controlling product stream oxygen content in process for the production of vinyl acetate In a process for the production of vinyl acetate by reacting ethylene, acetic acid and an oxygen-containing gas in a reactor to produce a process stream which is removed from the reactor as an outlet stream, the process is improved by maintaining the oxyg... | 07/10/2001 |
| 6252106 | Method for stabilizing a sex pheromone compound An efficient method is proposed for the stabilization of a sex pheromone compound of insect pest, which is a long-chain aliphatic unsaturated ester, alcohol, ketone or hydrocarbon compound having at least ten carbon atoms and at least one double bond in a... | 06/26/2001 |
| 6228800 | Noble metal support A noble metal-supported article which comprises a carrier and a palladium-containing metal component supported on the carrier, which article has (A) a layer in which substantially no palladium is supported in the interior of the carrier and (B) a layer in... | 05/08/2001 |
| 6225496 | Process for the production of vinyl acetate utilizing a recycle stream comprising acetic acid and water Process for the production of vinyl acetate in which ethylene, acid and oxygen-containing gas are combined at elevated temperature in the presence of a catalyst material to produce (i) a product mixture comprising vinyl acetate, (ii) a liquid by-product c... | 05/01/2001 |
| 6215019 | Synthesis of 5-decenyl acetate and other pheromone components The present invention relates to syntheses of 5-decenyl acetate, the major component in Peach Twig Borer pheromone, and other pheromone components. The syntheses entails few reaction steps, use commercially available starting materials, and have relativel... | 04/10/2001 |
