Patents
Patents for C07C 29 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring (31,270)
07/1991
07/16/1991CA1286292C Medicaments, vicinal dihydroxyalkylxanthines contained therein, process for the preparation of these xanthine compounds and intermediate products suitable for these
07/13/1991CA2033964A1 Process for the preparation of spherical particles of magnesium alkoxide
07/11/1991WO1991009674A1 Catalyst for hydrogenation, dehydrosilylation or hydrosilylation, and its use
07/10/1991EP0436288A2 Membrane system and process for concentrating organic oxygenates
07/10/1991EP0436226A1 Process for producing octa-2,7-dien-1-ol
07/09/1991US5030783 Conversion of hydrogen, carbon monoxide and dioxide to methanol or fischer-tropsch liquid; catalysis
07/09/1991US5030775 Process for preparing motor fuel grade alcohol
07/09/1991US5030774 Process for the hydroformylation of sulfur-containing thermally cracked petroleum residue and novel products thereof
07/09/1991US5030773 Hydrogenating gamma-butyrolactone with hydrogen in presence of water and copper zinc catalyst
07/09/1991US5030771 Method of producing aliphatic and cycloaliphatic diols by catalytic hydrogenation of dicarboxylic acid esters
07/09/1991US5030766 Reacting An Epoxide With Carbon Monoxide And Hydrogen In The Presence Of A Rhodium-Containing Catalyst
07/09/1991US5030739 Formation Of Hydroperoxides Using An N-Hydroxydicarboxylic Acid Imide As Catalyst
07/09/1991US5030609 Process for producing a hydrogenation catalyst of copper chromite
07/09/1991CA1285960C Homologation process
07/03/1991EP0435158A2 Process for producing alcohol or amine
07/03/1991EP0435070A1 Process for preparing 2,2-Dimethylpropanediole-1,3
07/03/1991EP0434783A1 Method for producing stabilized solutions of formaldehyde with methanol
07/03/1991CN1052658A Natural mercerizing zeolite catalysising camphane alkene water synthetizing isoborneol
07/03/1991CA2020533A1 Separation of compositions containing water and organic oxygenates
07/02/1991USH938 Removal of hydroxide ion from alkoxide ion solutions
07/02/1991US5028240 Separation and concentration of lower alcohols from dilute aqueous solutions
06/1991
06/28/1991WO1991009828A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
06/28/1991CA2048624A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
06/26/1991EP0434485A1 Method of production of phenol
06/26/1991EP0434320A1 Vapor-phase hydration of olefins to alcohols in series reactors with intermediate alcohol removal
06/26/1991EP0434062A1 Hydrogenation with Cu-A1-X catalysts
06/26/1991EP0434061A1 Hydrogenation with Cu-A1 catalysts
06/25/1991US5026934 Using unsynthesized light oils, together with oxides of carbon products, to make methanol
06/25/1991US5026927 Using soluble Group 8 metal hydrogenation catalyst
06/25/1991US5026904 Catalytic reaction of carbon dioxide and hydrogen with alcohols
06/25/1991CA1285288C Process for the hydrolysis of dialkyl carbonates
06/25/1991CA1285283C Tricyclo (6.2.1.0 , )undecanes useful as fragrance chemicals
06/22/1991CA2032985A1 Process for preparing phenol
06/22/1991CA2032871A1 Hydrogenation with cu-al catalysts
06/22/1991CA2032777A1 Hydrogenation with cu-a1-x catalysts
06/22/1991CA2032270A1 Vapor-phase hydration of olefins to alcohols in series reactors with intermediate alcohol removal
06/19/1991EP0432429A1 Tube reactor
06/19/1991EP0432364A1 Reactor for carrying out catalytic gas reactions or physical separation processes
06/18/1991US5025113 Catalytic preparation of tertiary butyl alcohol from tertiary butyl hydroperoxide
06/12/1991WO1991009010A2 Fluorocarbon compounds and processes for preparation thereof
06/12/1991EP0431923A2 Process for producing 1,4-butanediol and tetrahydrofuran
06/12/1991EP0431841A2 Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol
06/12/1991EP0431450A2 1-Bromo-3-chloro-1,2-diaryle-2-propanols, process for the stereoselective preparation of erythro-1-bromo-3-chloro-1,2-diaryle-2-propanols and their conversion into azolyle methyloxiranes
06/12/1991CA2071199A1 Fluorocarbon compounds and processes for preparation thereof
06/11/1991US5023393 Oxidation of natural gas by oxygen using a nickel-zeolite-zsm-5 catalyst
06/11/1991US5023392 Controlled oxidation
06/11/1991US5023391 Process for upgrading methane to higher hydrocarbons
06/11/1991US5023389 Selectivecy converting branched olefins, separation, oligomerization
06/11/1991US5023384 Process for the preparation of trifluoroethanol
06/11/1991US5023383 Catalytic reducing aromatic hydroperoxides
06/11/1991US5023377 Process for preparing fluorinated compounds
06/09/1991CA2026939A1 Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol
06/06/1991DE3939545A1 Reactor for methanol synthesis - has spherical catalyst bed and definite flow pattern, and expulsion device with quenching gas distributor at centre
06/06/1991DE3939544A1 Reactor for catalytic gas reactions or physical sepn. - has spherical catalyst bed with central distributor from which there is radial outward gas flow
06/05/1991EP0430699A2 Production of methanol
06/05/1991EP0430543A1 Removal of metal soaps from hydrogenated fatty products
06/05/1991EP0429998A1 Process for the preparation of partially fluorinated alcohols
06/04/1991US5021607 Titanium containing silicate catalyst
06/04/1991US5021131 Electrochemical coupling of beta-hydroxy carboxylic acids; using a metal alkoxide catalyst and lower alcohol solvent
06/04/1991CA1284665C Process for hydroxymethylation
06/04/1991CA1284654C ¬4.2.0|bicyclooctane derivatives with valuable therapeutic properties
06/02/1991WO1991008047A1 Preparation of hetero-atoms(s) containing hydrocarbons
06/02/1991CA2069904A1 Preparation of hetero-atom(s) containing hydrocarbons
06/02/1991CA2031292A1 Production of methanol
05/1991
05/31/1991CA2030915A1 Reactor for catalytic gas reactions and/or physical separation processes
05/30/1991WO1991007367A1 Manufacture of absolute alcohol
05/28/1991US5019658 Separation of pure optical stereoisomers by pressure crystallization
05/28/1991US5019547 Process for preparing precursors of catalysts containing copper, aluminum and zinc, usable for the synthesis and the decomposition of methanol and catalysts obtained from the precursors
05/28/1991CA1284486C Hydrogenation catalyst shapes
05/22/1991EP0427965A2 Process for the preparation of cyclohexanol derivatives
05/22/1991EP0396693A4 1-hydroxymethyl polyolefin via hydroformylation
05/22/1991CN1051550A Improvement of olefin chlorine alcoholization process
05/21/1991US5017731 Ethanol, methanol
05/21/1991US5017730 Freidel-crafts reaction from methylbenzoyl chloride and toluene; chlorination, fluorination, reduction, and catalysis
05/21/1991US5017719 Esters of arylbisperfluoroalkylcarbinols, and a process for the preparation of these compounds
05/15/1991CN1051352A Process and apparatus for separating propyleneglycol
05/14/1991US5015789 Multistage synthesis of propanediol from hydration of acrolein and hydrogenation of 3-hydroxypropionaldehyde
05/14/1991US5015788 Process for the hydrogenation of acetylenic alcohols
05/14/1991US5015787 Process for production cyclohexanol
05/14/1991US5015786 Alkylation of benzene with isopropanol and a zeolite catalyst, oxidation of cumene to form cumene hydroperoxide, hydrogenation the acetone
05/14/1991US5015761 Esters and alcohol derivatives of dimethyltricyclo(6.2.01.6)un decanes as perfumes
05/08/1991EP0426290A2 Process for the production of detergent range alcohols and ketones
05/08/1991EP0425570A1 Oxidation hydrolysis of iodoalkanes
05/07/1991USH918 Decarbonylation and dehydrogenation of carbohydrates
05/07/1991US5013764 Catalyst and method for producing lower aliphatic alcohols
05/07/1991US5013444 Process for separating off enol ethers from reaction mixtures containing alcohols
05/02/1991WO1991005734A1 Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol
05/02/1991EP0425108A2 Dehydration of organic oxygenates
05/02/1991EP0424767A2 Decanol mixtures and mixtures of didecylesters obtained from them and their use as plastifiers
05/01/1991CN1050994A Improved aldehyde hydrogenation catalyst and process
04/1991
04/30/1991US5012018 Polyprenyl composition of compounds and process for the production thereof
04/30/1991US5012014 Catalyst pretreatment for olefin hydration
04/30/1991US5011989 Optically active hydroxybenzylamine
04/30/1991US5011806 Catalyst composition for the hydrogenation of carboxylic acid esters
04/24/1991EP0424069A1 Hydrogenation catalys and process of using said catalyst
04/24/1991EP0423949A2 Membrane process for separation of organic liquids
04/24/1991EP0423525A1 Process for the preparation of epimer-free sugaralcohols from the group of xylitol, sorbitol (D-glucitol), 4-0-beta-D-galactopyranosyl-D-glucitol and 4-0-alpha-D-glycopyranosyl-D-sorbitol
04/24/1991CN1050868A 1, 2-propanediol made method using pipe reactor
04/24/1991CN1050828A Mixed phase catalysis reaction distillation technology and equipment
04/24/1991CA2026660A1 Dehydration of organic oxygenates