Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
10/2000
10/26/2000WO2000063164A1 Method for carrying out the side chain bromination of 4-methyl biphenyl derivatives substituted at the 2'-position
10/26/2000WO2000063148A1 Salts of asiatic and madecassic acid suitable for the preparation of pharmaceutical and cosmetic compositions
10/26/2000WO2000063147A1 Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
10/26/2000WO2000063146A1 Process for the production and purification of aromatic acids
10/26/2000WO2000063145A1 Method for producing carboxylic acids from olefins
10/26/2000WO2000062926A1 Vanadyl pyrophosphate oxidation catalyst
10/26/2000WO2000062925A1 Vanadium phosphorus oxide catalyst having a thermally conductive support
10/26/2000DE19917681A1 Verfahren zur Herstellung von Iridiumacetat und Verwendung des nach dem Verfahren hergestellten Iridiumacetats Process for the preparation of iridium acetate, and using the Iridiumacetats prepared by the process
10/26/2000DE19917557A1 Production of carboxylic acid, e.g. propionic acid, involves reaction of olefin with carbon monoxide and water using a catalyst system containing rhodium, pyridine and a molybdenum or rhenium carbonyl
10/26/2000CA2370713A1 Salts of asiatic and madecassic acid suitable for the preparation of pharmaceutical and cosmetic compositions
10/26/2000CA2367470A1 Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
10/25/2000EP1046630A1 Method of purification of polyprenyl compounds
10/25/2000EP1046629A1 Process for preparing iridium acetate and its use
10/25/2000EP1046416A2 Method for preventing polymerization in thin-film type evaporating device
10/25/2000EP1045824A1 Method to produce aromatic carboxylic acids
10/25/2000EP1045823A1 Process for making certain benzoic acid compounds
10/25/2000EP0912486B1 Process for purifying crude acrylic acid by crystallization
10/25/2000CN1270954A Complexing extraction process of purifying glyoxalic acid
10/25/2000CN1270953A Short-path molecular distillation process for refining lactic acid
10/25/2000CN1270952A Refining method for (methyl) acrylic acid
10/25/2000CN1270951A Synthesis of edible perfume strawberry acid
10/25/2000CN1270950A Process for inhibiting polymerization of easy polymerized compounds
10/25/2000CN1270946A Preparing substituted olefine
10/25/2000CN1057754C Process for preparing erythrinus evening-primrose oil containing high gamma-linolenic acid content
10/24/2000US6137005 Mixing and reacting k-, na-, cs- or nh.sub.4-formate; k-, na-or cs-hydroxide; k-, na- or cs-carbonate; k-, na- or cs-bicarbonate; or nh.sub.3 with formic acid containing water; cooling, filtering, recirculting filtrate; drying filter cake
10/24/2000US6137004 Processes for recovering citric acid
10/24/2000US6137001 Process for preparing aromatic carboxylic acids with efficient treatments of gaseous effluent
10/24/2000US6137000 Contacting reactants selected from alkyl alcohols, alkane polyols, alkyl alkylene polyethers, alkoxyalkanol with carbon monoxide in presence of supported irridium and lanthanum series metals to form esters or carboxylic acids
10/24/2000US6136746 Poly-oxyanions as anchoring agents for metal complexes
10/24/2000CA2120287C Process for preparing carboxylic acids or corresponding esters using an iridium-based catalyst
10/19/2000WO2000061535A1 Catalyst for production of acetic acid or acetic acid and ethyl acetate, process for its production and process for production of acetic acid or acetic acid and ethyl acetate using it
10/19/2000WO2000061525A1 Site-specific isotopically-labeled proteins, amino acids, and biochemical precursors therefor
10/19/2000DE19917025A1 Rapid preparation of 4-bromomethyl-biphenyl derivatives from 4-methyl compounds, using N-bromo-imide or -amide in carboxylic acid ester solvent, used as pharmaceutical intermediates
10/19/2000DE19911504A1 Verfahren zur industriellen Oxidation von Alkoholen, Aldehyden oder Polyhydroxyverbindungen A process for the industrial oxidation of alcohols, aldehydes or polyhydroxy compounds
10/18/2000EP1044957A1 Process for inhibiting the polymerization of easily-polymerizable compounds
10/18/2000EP1044184A1 Synthesis of 3-aryl-1-indanamines
10/18/2000EP0906465B1 Deinking process
10/18/2000CN1270578A Methods and devices for removing acetic acid from cyclohexane in the production of adipic acid
10/18/2000CN1270577A Methods and reactor devices for removing catalyst after oxidation of hydrocarbons
10/18/2000CN1270160A Refined unsaturated polyfatty acid and calcium salt of unsaturated polyfatty acid as medicinal products and preparing process thereof and preparation
10/17/2000US6133477 Reaction of butadiene with carbon monoxide and water in the presence of a rhodium-containing catalyst and an iodide promoter where carbon monoxide stripping is employed to separate and recover the 3-pentenoic acid
10/17/2000US6133476 Process for purification of aromatic polycarboxylic acids
10/17/2000US6133475 Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid
10/17/2000US6133470 Producing terephthalic acid and/or dimethyl terephthalate; toluene disproportionation conditions with crystalline molecular sieve catalyst to produce an intermediate product, which is oxidized without need for purification
10/17/2000US6133459 Method and compositions providing enhanced chemiluminescence from 1,2-dioxetanes
10/17/2000US6133409 Reacting a solid support-bound n-alkylated hydroxamic acid with a carbon-nitrogen cleaving organometallic compund to liberate the product ketone
10/17/2000US6133222 Bleaching detergent comprising bleaching agent, mid-chain branched surfactant, adjunct ingredients
10/17/2000CA2151695C Process for the separation of aliphatic diacids from mixtures thereof with adipic acid
10/17/2000CA2151392C Process for treating a polymer-containing material by hydrolysis
10/12/2000WO2000059858A1 Hydrocarbon, alcohol and/or ketone oxidation method
10/12/2000WO2000059847A1 PROCESS FOR THE PREPARATION OF α-HYDROXY ACIDS
10/12/2000CA2368004A1 Hydrocarbon, alcohol and/or ketone oxidation method
10/11/2000EP1043304A1 Method for producing (hydroxyalkyl)alicyclic carboxylic acids and intermediates therefor
10/11/2000EP1043303A1 Method of inhibiting vinyl compound polymerization
10/11/2000EP1043302A2 Method for handling waste oil
10/11/2000EP1043301A2 Carbonylation process
10/11/2000EP1043300A2 Process for the carbonylation of an alcohol and/or reactive derivative thereof
10/11/2000EP1043064A2 Mixed metal oxide catalyst and use thereof in oxidation reactions
10/11/2000EP1043050A2 Method for refining easily polymerizable matter-containing substance and apparatus therefor
10/11/2000EP1042273A1 Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores
10/11/2000CN1269779A Method for fractional condensation of hot gas misture containing acrylic acid or methacrylic acid and having high proportion of non-condensable constients
10/11/2000CN1269776A Method of heterogeneous catalyzed vapor-phase oxidation of propane to acrolein and/or acrylic acid
10/11/2000CN1269352A Method for preparing vinyl ester using butene low polymers
10/11/2000CN1269351A Method and apparatus for refining materials containing components easy to polymerize
10/11/2000CN1269350A Process for treating waste oil
10/11/2000CN1269349A Preparation for methyl propenoic acid
10/11/2000CN1269348A Process for producing (methyl) propenoic acid and/or (methyl) acrylate and apparatus thereof
10/11/2000CN1269347A Process and apparatus for preparing saturated carboxylic acids having one to four carbon atoms
10/11/2000CN1269259A Oxidation catalyst and using method thereof
10/11/2000CN1269253A Methanol and ethyl acetate separating method
10/11/2000CN1057290C Combined producing process for fumaric acid and malic acid
10/10/2000US6130356 Catalysts for the oxidation of ethane to acetic acid, methods of making and using the same
10/10/2000US6130355 Anhydrous carbonylation process for the production of acetic acid
10/10/2000US6130354 Process for the preparation of shikimic acid and its derivatives
10/10/2000US6130257 Compositions of enantiomeric diacyl tartaric anhydrides and preparation thereof
10/10/2000US6130075 Polymer conjugates of polyethylene glycols or oxides with polyethyleneimine or polypropylenimine for extracting carboxylic acids from solutions
10/10/2000US6129875 Process of separating catalyst from oxidation mixtures
10/05/2000WO2000058257A1 Process for the production of aromatic acids
10/05/2000WO2000058256A1 Process for the preparation of 3,4-dihydroxybutanoic acid and derivatives thereof from substituted pentose sugars
10/04/2000EP1041062A2 Method for refining (meth)acrylic acid
10/04/2000EP1040862A1 Method and device for global warming prevention
10/04/2000EP1040093A2 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids
10/04/2000CN1268504A Method for prodn. of acetic acid
10/04/2000CN1268384A Purification apparatus having steam dispersion device
10/04/2000CN1057100C Method for preparing functionalised hydrocarbon polymers
10/04/2000CN1057079C Catalystic rectification and hydrolization technology and equipment for methyl acetate
10/04/2000CN1057078C Process for producing acetic acid
10/03/2000US6127574 Carbonylation process
10/03/2000US6127573 Oxidaton of primary alcohols to carboxylic acids with a TEMPO catalyst using NaClO2 and NaClO
10/03/2000US6127432 Processes for preparing oxygenates and catalysts therefor
09/2000
09/30/2000CA2303465A1 Gelled hydrocarbon compositions and methods for use thereof
09/28/2000WO2000056694A1 Process for producing fluorine compound through liquid-phase fluorination
09/28/2000WO2000056693A1 Method of industrial-scale purification of lactic acid
09/27/2000EP1038860A1 Process for the production of an acid derivative of an ose by decarboxylation with hydrogen peroxyde
09/27/2000EP1038524A1 L-threonate ferrous, as well as pharmaceutical composition and use for improving and treating human anemia thereof
09/27/2000CN1267662A L-(+)-threonic calcium and its synthesis
09/27/2000CN1267661A Solid calcium lactate producing process from calcium lactate solution
09/27/2000CN1267660A Refining method for (methyl) propenoic acid and/or its ester
09/26/2000US6124500 Process for synthesizing benzoic acids
09/26/2000US6124499 Preparation of organic acids such as acrylic acid by catalytic oxidation using a group V mixed metal oxide catalyst containing Cu, Mo, W, V, Nb and Ta
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