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| Number | Title | Issue Date |
| 7754928 | Method of making 2-butanol The present invention relates to a method for making 2-butanol from 2,3-butanediol by using a heterogeneous catalyst system that can function both as an acid catalyst and as a hydrogenation catalyst. ... | 07/13/2010 |
| 7754929 | 1,4-hydrogenation of sorbol with Ru complexes The present invention relates to the use of Ru complexes, having a pentamethyl-cyclopentadienyl and a cyclooctadine as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of sorbol into the corresponding Z-alkene as ma... | 07/13/2010 |
| 7456326 | VOC reduction in ethanol plants Byproduct solids produced in the processing of carbohydrate material to produce ethanol are dried in a recirculating stream of gaseous carbon dioxide into which carbon dioxide produced in that processing is fed. Organic contaminants and water vapor report to the rec... | 11/25/2008 |
| 7259280 | Process for producing alkenyl alcohols A process for producing an alkenyl alcohol from a diol is disclosed. The process comprises dehydrating a diol in the presence of a catalyst comprising cerium oxide supported on a carrier. The carrier has a surface area in the range of 0.1 to 50 m2/g. The ... | 08/21/2007 |
| 7183443 | Process for the preparation of enantiomerically enriched compounds Process for the preparation of enantiomerically enriched amino aldehydes and amino alcohols, wherein a corresponding enantiomerically enriched amino nitrile is subjected to hydrogenation in the presence of hydrogen, a hydrogenation catalyst, preferably a Pd-catalyst... | 02/27/2007 |
| 7098369 | Process for the production of primary alcohols A process for producing primary alcohols from secondary alcohols and/or tertiary alcohols and/or ketones, wherein the process comprises reacting a compound selected from a secondary alcohol, a tertiary alcohol, a ketone, or mixtures thereof, with carbon monoxide and... | 08/29/2006 |
| 7084312 | Catalyst and method for hydrogenating carbonyl compounds A process for the hydrogenation of an organic compound containing at least one carbonyl group comprises bringing the organic compound in the presence of hydrogen into contact with a shaped body which can be produced by a process in which ... | 08/01/2006 |
| 6916964 | Selective hydrogenation of olefinically unsaturated carbonyl compounds The present invention relates to a continuous process for the selective hydrogenation of olefinically unsaturated carbonyl compounds to give unsaturated alcohols in particular of citral to give a mixture of geraniol and nerol, in a reactor containing a liquid phase,... | 07/12/2005 |
| 6743956 | Selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols in the presence of a Pt/ZnO catalyst The present invention relates to a process for selective liquid phase hydrogenation of carbonyl compounds of the general formula I, where R1 and R2 are identical or different and are each ind... | 06/01/2004 |
| 6555717 | Catalytic dehydroxylation of diols and polyols Secondary alcohols, specifically diols and polyols, are dehydroxylated to the corresponding primary alcohols using a homogeneous organometallic ruthenium complex catalyst.... | 04/29/2003 |
| 6448457 | Method for hydrogenating carbonyl compounds A process for the catalytic hydrogenation of a carbonyl compound or of a mixture of two or more carbonyl compounds in the presence of a catalyst which comprises an inorganic support containing TiO2, and as active component copper or a mixture o... | 09/10/2002 |
| 6440891 | Catalyst comprising a complex of a metal of subgroup VIII, on the basis of a phosphonite ligand and method for hydroformylation The catalyst comprises at least one bi- or more highly dentate phosphonite ligand of the general formula I ##STR1## or salts and mixtures thereof and is useful in a process for hydroformylating compounds containing at least one ethylenically unsatura... | 08/27/2002 |
| 6333441 | Preparation of cis--olefins A cis-olefin of the formula: R1 --CH.dbd.CH--R2 is prepared by reducing an alkyne of the formula: R1 --C.ident.C--R2 with formic acid in the presence of a palladium catalyst. R1 and R2 are ... | 12/25/2001 |
| 6242620 | Process for making carboxylic acid esters Sulfur and soap contaminants are removed from carboxylic acid esters by a process comprising the steps of: (1) contacting a carboxylic acid ester with an aqueous base at a temperature of from about 225° F. to about 280° F. while removing water to form a... | 06/05/2001 |
| 6130360 | Hydrogenation of alkinols using a catalyst containing macropores An alkinol or mixture of two or more thereof is hydrogenated by bringing the alkinol or the mixture of two or more thereof into contact with a hydrogen-containing gas in the presence of a catalyst comprising as active metal at least one metal of transitio... | 10/10/2000 |
| 6002047 | Catalytic hydrogenation using amorphous metal alloy and a solvent under near-critical or super-critical conditions The present invention is concerned with a process for the catalytic hydrogenation of organic compounds on a catalyst of amorphous metal alloys and in a solvent, with the hydrogenation being carried out under near-critical or supercritical conditions of th... | 12/14/1999 |
| 5981812 | Process for preparing , ω-alkenols The invention relates to a process for preparing ,ω-C4 -C20 -alkenols by catalytic monodehydration of ,ω-alkanediols over a catalyst system comprising the combination of aluminum phosphate and barium phosphate. The ga... | 11/09/1999 |
| 5728376 | Tetradecatrienyl and tetradecadienyl acetates and their use as sex attractants for tomato pests The present invention is directed to compounds useful as moth attractants and to methods for controlling populations of the tomato moth Scrobipalpuloides absoluta with these compounds. The compounds are 3,8,11-tetradecatrienyl acetates, 3,8-tetradecadieny... | 03/17/1998 |
| 5672783 | Method for producing 3,7-dimethyl-5,7-octadiene-1-ol or rose oxide Simple methods for producing 3,7-dimethyl-5,7-octadiene-1-ol and rose oxide are disclosed. Each of the methods comprises only one step in which the raw material, 3,7-dimethyl-6-hydroxy-7-octene-1-ol is dehydrated or further cyclized by heating while stirr... | 09/30/1997 |
| 5600015 | Assymetric hydrogenation of isoprene derivatives There is described a process for the manufacture of isoprene derivatives of the general formula ##STR1## wherein the asymmetric centres can each individually have the (R)- or (S)-configuration, R represents a residue of the formulae ##STR2## ... | 02/04/1997 |
| 5600032 | Method for producing an unsaturated alcohol A method for producing an unsaturated alcohol having a chain structure formed by oligomerization of a conjugated alkadiene, which comprises reacting a conjugated alkadiene and water in the presence of carbon dioxide by means of a palladium compound and a ... | 02/04/1997 |
| 5599848 | Preparation, intermediates for the preparation and the use of a mixture of dodecdienol isomers A process for preparing a mixture of 8E,10E-dodecadienol (Ia), 8E,10Z-dodecadienol (Ib), 8Z,10E-dodecadienol (Ic) and 8Z,10Z-dodecadienol (Id), H3 C--CH.dbd.CH--CH.dbd.CH--(CH2)6 --CH2 --OH (8E,10E=Ia) (8E,10Z=Ib) (8... | 02/04/1997 |
| 5449838 | Isopropyl t-butyl ether (IPTBE) generation from crude acetone Disclosed is a two-step process for the generation of isopropyl t-butyl ether from a crude by-product acetone stream which comprises: a) Hydrogenating said crude acetone over a bulk metal, nickel-rich catalyst to give an isopropanol-rich effluent; b) subjectin... | 09/12/1995 |
| 5444170 | Hydrogenation of acetylenic compounds This invention pertains to an improved process for the hydrogenation of acetylenic compounds prepared by the condensation of ketones or aldehydes with acetylene wherein the acetylenic compounds are contacted with hydrogen in the presence of a hydrogenatio... | 08/22/1995 |
| 5286899 | Process for the stereoselective transformation of a diol to an alcohol An efficient and commercially-viable method for the stereoselective transformation of a diol to an alcohol is disclosed. The present method is particularly well-suited for the preparation of the unnatural D-isomer of malic acid or its derivatives from the... | 02/15/1994 |
| 5210335 | Preparation of lower polyhydric alcohols Lower polyhydric alcohols are prepared by catalytic hydrogenolysis of sucrose in an aqueous solution by using a catalyst whose active material essentially consists of from 0 to 100% by weight of cobalt, from 0 to 85% by weight of copper and from 0 to 80% by we... | 05/11/1993 |
| 5183923 | Process for preparing primary hydroxyl-containing diols The invention concerns a method for the preparation of polyurethane, polyester, polyamide, and polyurea diols which contain essentially all primary hydroxyl groups without capping by ethylene oxide. The method comprises coupling an alkylene oxide adduct o... | 02/02/1993 |
| 5118837 | Selective hydrogenation of olefins A modified ruthenium catalyst can be used to selectively hydrogenate an olefinic double bond in the presence of another olefinic double bond in the same or in a different molecule. Modifiers are selected from compounds containing trivalent nitrogen, triva... | 06/02/1992 |
| 5057631 | Process for continuous production of octa-2,7-dien-1-ol Butadiene and water are reacted continuously in the presence of a solvent capable of dissolving both reactants and a palladium catalyst with the mole ratio of butadiene to the reaction product octa-2,7-dien-1-ol in the reaction mixture being maintained at... | 10/15/1991 |
| 5015788 | Process for the hydrogenation of acetylenic alcohols A process for the preparation of saturated alcohols by catalytic hydrogenation of acetylenic alcohols at a temperature of from 50° to 200° C. and under a pressure of from 30 to 320 bar, wherein the catalyst used has a content of from 20 to 75% of nickel... | 05/14/1991 |
| 4990697 | Process for producing homoallyl alcohols A process for producing homoallyl alcohols of the general formula (I) ##STR1## in which either A1 or A3 represents a hydrogen atom, the other represents a single bonding along with A2 ; R1, R2, R... | 02/05/1991 |
| 4973765 | Preparation of dien-1-ols, 9-hydroxydodec-10-enyl 1-tert-butyl ether and use thereof as an intermediate for synthesizing 8,10-dodecadienol Dien-1-ols of the general formula I ##STR1## where the radicals R1 to R7 are identical to or different from one another and each is hydrogen or straight-chain or branched alkyl of 1-12 carbon atoms and n is 1-14, are prepared by... | 11/27/1990 |
| 4962242 | Process for producing optically active alcohols A process for producing an optically active alcohol represented by formula (I): ##STR1## wherein R1 is an alkyl group having from 2 to 11 carbon atoms, an alkenyl group having from 3 to 11 carbon atoms, an alkadienyl group having from... | 10/09/1990 |
| 4888446 | Preparation of polyoxyalkylene glycol amines The invention concerns a method for the preparation of polyoxyalkylene compounds wherein each compound has one primary amine group and one primary hydroxyl group. The method comprises alkoxylating a t-butyl ethylene, propylene or butylene glycol then amin... | 12/19/1989 |
| 4855516 | Method of manufacturing 2-propyn-1-ol A method of manufacturing 2-propyn-1-ol by decomposing 2-butyn-1,4-diol in the presence of a copper acetylide catalyst. 2-propyn-1-ol is produced at high conversion, yield, and purity.... | 08/08/1989 |
| 4843178 | Compositions possessing pheromone-like activity The present invention relates to a process for producing an E,Z-9-alkenyl-1-aldehyde component which comprises: (a) disproportionating cyclooctene and an -olefin in the presence of a suitable disproportionation catalyst under disproportionation conditio... | 06/27/1989 |
| 4695661 | Catalytic system and a process for preparing alpha, omega-C4 through C20 alkenols In order to produce pure alpha, omega-C4 to C20 alkenols having purities in excess of 90% by dehydrating the corresponding alpha, omega-C4 to C20 diols, a catalyst is used which was prepared by using an alkaline... | 09/22/1987 |
| 4661643 | Hydrogenolysis process for the production of monoethylene glycol monomethyl ether, monoethylene glycol and ethanol This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating t... | 04/28/1987 |
| 4658071 | Preparation of olefinically unsaturated compounds in particular alkenols An olefinically unsaturated compound, in particular a very pure cis-isomer of an alkenylhydroxy compound of the formula where R is hydrogen or a protective group which can virtually be eliminated, m is from 1 to 12 and n is from 1 to 10, is obtained by ca... | 04/14/1987 |
| 4649225 | Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol monoalkyl ethers, monoethylene glycol and ethanol This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating t... | 03/10/1987 |
