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)
02/1991
02/05/1991US4990655 Vapor phase hydrogenation using noble metal-rhenium catalyst
02/05/1991US4990321 Adding water to prevent formation of methyl bromide; distillation
02/03/1991WO1991001805A1 Liquid compositions and supported perfluorinated ion-exchange polymers
02/03/1991CA2064187A1 Liquid compositions and supported perfluorinated ion-exchange polymers
01/1991
01/30/1991EP0410901A1 Method of catalytic oxidation of alkanes to give mixtures of alcohols and ketones
01/30/1991EP0409828A1 Process for the recovery of alcohols using a perfluorinated ionomer membrane.
01/29/1991US4988826 Process for intermediates for insecticidal compounds
01/29/1991US4988819 1,2,4-triazolemethyl ketones as chemical intermediates for plant growth regulators or fungicides
01/29/1991US4988800 Preparation of rare earth alkoxides using catalyst
01/29/1991CA1279657C Process for making 1,3-glycols from epoxides
01/23/1991EP0409689A2 A process for the purification of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol
01/23/1991EP0409089A2 Fragrant patchouli oil and a perfume composition comprising said patchouli oil
01/23/1991EP0409086A1 One-step liquid phase process for dimethyl ether synthesis
01/23/1991EP0408857A2 Process for the preparation of nonionic surfactants low in alkylene oxides and 1,4-dioxane by means of alkali metal alcoholate catalyst
01/23/1991CN1048721A Method for producting methane synthesis gas
01/22/1991US4987270 From benzylalcohol or derivative and n-propanol; alkali metal hydroxide catalyst
01/22/1991US4986885 Process for the separation of butanol and butoxyacetaldehyde
01/19/1991CA2021063A1 Process for manufacturing ethanol, glycerol succinic acid, lactic acid, betaine, potassium sulfate, l-pyrogultamic acid, and free flowing distiller's dry grain and solubles or a solid fertilizer
01/19/1991CA2020929A1 One-step liquid phase process for dimethyl ether synthesis
01/17/1991DE4021230A1 Alcohol prepn. - by hydrogenating carboxylic acid ester cpds. in presence of copper and zirconium contg. catalyst
01/16/1991CN1011232B Improved aldehyde hydrogenation catalyst and process
01/15/1991US4985572 Catalyzed hydrogenation of carboxylic acids and their anhydrides to alcohols and/or esters
01/15/1991US4985454 Treatment of glaucoma
01/10/1991WO1991000144A1 Homogeneous catalyst formulations for methanol production
01/10/1991WO1991000143A1 Oxidic heterogeneous catalysts of osmium, method for manufacturing them and their use in converting olefinic compounds into glycols
01/09/1991EP0406742A1 Process for the preparation of cis-dihydronopol
01/09/1991EP0406572A1 Cyclic compounds and their process of preparation
01/08/1991US4983776 Process for the preparation of functional fluoro derivatives
01/08/1991US4983766 Chemical intermediates for optically active secondary alcohols
01/08/1991US4983739 Optically active styrene compounds
01/08/1991US4983638 Reacting carbon monoxide and hydrogen using rhodium, cobalt, molybdenum, and cesium catalyst
01/08/1991US4983304 Chitosan; pervaporation
01/08/1991US4983303 Method of separating a particular component from its liquid solution
01/03/1991DE3920917A1 Oxidische heterogenkatalysatoren des osmiums, verfahren zu ihrer herstellung und ihre verwendung fuer die ueberfuehrung von olefinischen verbindungen in glykole Oxidic heterogeneous catalysts of osmium, process for their production and their use for the Overpass of olefinic compounds in glycols
01/02/1991EP0405956A1 Hydrogenation of alpha-hydroxy ketones
01/01/1991US4982023 Oxidation of methane to methanol
01/01/1991US4982022 Process for the preparation of tertiary alcohols
01/01/1991US4982021 Hydrolysis of alkylene oxide, catalyst selectivity
01/01/1991US4982020 Oxides of copper, barium, chromium as catalyst
01/01/1991US4982018 Removal of cyclohexanol from aqueous solutions containing it and aromatic sulfonic acids
01/01/1991US4982017 Composition for use in organolithium synthesis reactions
01/01/1991US4982016 Reduction
01/01/1991US4982011 Hydrogenation, distillation, catalytic cracking
01/01/1991US4982009 Hydroxy containing fluorovinyl compounds and polymers thereof
12/1990
12/31/1990WO1991000141A1 Process and device for the simultaneous transfer of material and heat
12/30/1990CA2020007A1 Hydrogenation of alpha-hydroxy ketones
12/27/1990EP0404417A1 Removal of acidic impurities from tertiary butyl hydroperoxide containing feedstock
12/27/1990EP0404077A1 Process for producing propargylcarbinol compounds
12/27/1990EP0403639A1 Process for the conversion of olefins to alcohols and/or ethers
12/27/1990CA1278315C Method and apparatus for removing water from ethanol
12/26/1990CN1010938B Purifying 1, 2-ethylidene glycol obtd. from ethylidene carbonate
12/25/1990US4980488 Fungicidal and plant growth-regulating azolymethyl-cyclopropyl derivatives
12/25/1990US4980380 Catalyst and method for producing lower aliphatic alcohols
12/19/1990EP0402744A1 Method for the recovery of trans-1,1,4,4-tetraalkyl-2-butene-1,4-diols
12/18/1990US4978800 Production of detergent range alcohols and ketones using acetylacetonate catalysts
12/18/1990US4978799 Production of detergent range alcohols and ketones using porphyrin catalysts
12/18/1990US4978430 Evaporation, separation of water vapor with polyimide membrane selective permeation
12/14/1990CA2018524A1 Process for light olefins hydration and mtbe production
12/13/1990CA2018612A1 Catalytic process for producing higher alcohols from synthesis gas
12/13/1990CA2018611A1 Catalytic process for producing olefins or higher alcohols from synthesis gas
12/12/1990EP0402051A2 Processes for the preparation of saturated alcohol derivatives and their use in detergent: plasticizer: and synthetic lubricant formulations
12/11/1990US4977285 Adding lower aliphatic alcohol to heavy liquid distillation fraction, then falling-film evaporation
12/11/1990US4977284 Process for producing 1,4-butanediol and tetrahydrofuran
12/11/1990US4976928 Device for performing exothermic catalytic gas reactions for the synthesis of ammonia or methanol
12/11/1990CA1277681C Process for the production of 2,3-dichloro-1-propanol
12/11/1990CA1277652C Bimetallic catalysts for the reaction of carbon monoxide and hydrogen
12/05/1990CN1047532A Glycerine extracting technology by ferment method
12/04/1990US4975404 Process for the production of methanol and catalyst composition for said process
12/04/1990US4975158 Recovery of glycerine from polyols by azeotropic distillation
12/04/1990CA1277123C System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and relative reactors
11/1990
11/28/1990EP0399913A1 Process for the synthesis of "oxo" products through the plasma route and plant comprising a plasma reactor useful in the process
11/28/1990EP0398998A1 Synthetic porous crystalline material, its synthesis and use.
11/27/1990US4973769 Malic ester, copper-aluminum catalyst
11/27/1990US4973768 Process for the preparation of unsaturated alcohols
11/27/1990US4973767 Cyclopropane derivatives
11/27/1990US4973765 Preparation of dien-1-ols, 9-hydroxydodec-10-enyl 1-tert-butyl ether and use thereof as an intermediate for synthesizing 8,10-dodecadienol
11/27/1990US4973746 Ammonolysis, dehydration, hydrogenation
11/27/1990US4973717 Production of butanediol and tetrahydrofuran, metal alloy catalyst
11/24/1990CA2017368A1 Process for the synthesis of oxo compounds and apparatus comprising a plasma reactor for use in said process
11/22/1990EP0398774A1 Process for the preparation of brominated derivatives from alcohols
11/22/1990EP0398154A1 Process for the production of telomer-alcohols
11/22/1990EP0397650A1 Low pressure catalytic hydrogenation of carbonyl-containing compounds and catalysts therefor.
11/21/1990CN1010462B Process for producing fluidized catalyst for synthesis of methanol
11/20/1990US4971770 Process involving oxidation reactor used oxidize a gaseous phase oxidizable feed
11/20/1990US4971699 Nonporous membrane separation layer of a blend of polyvinylalcohol and polyacrylic acid on polysulfone support
11/15/1990WO1990013532A1 Method for producing stabilized solutions of formaldehyde with methanol
11/15/1990WO1990009978A3 Process for producing esters of (meth)acrylic acid
11/14/1990EP0396693A1 1-hydroxymethyl polyolefin via hydroformylation
11/13/1990US4970346 Oxidation, by-product inhibition
11/13/1990US4970330 Insecticides, pesticides
11/13/1990US4970185 Nickel, salt, hydride, alchol
11/13/1990US4969977 Separation of 2-methyl-butanol-1 from pentanol-1 by extractive distillation
11/13/1990US4969953 Alcohol mixture for plasticizer and method for producing the same
11/13/1990CA1276185C Dual step process for producing isobutylene from propylene and synthesis gas
11/08/1990DE4011783A1 Aluminium oxide carboxylate polymer prodn. - by reaction of aluminium alcoholate, mono:carboxylic acid and water to give lower ester content
11/07/1990EP0395729A1 Ligand-accelerated catalytic asymmetric dihydroxylation.
11/07/1990EP0395681A1 Triethylamine catalyzed neopentyl glycol production utilizing a gas sparged reactor.
11/07/1990CN1010302B Process for preparing copper aluminum borate
11/06/1990US4968849 Process for the preparation of 2-ethylhexanol by liquid-phase catalytic hydrogenation of 2-ethylhexenal, and catalyst
11/06/1990US4968848 Process of the prparation of perfluoroalkyl compounds, and pentafluoroethyltrimethylsilane