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)
11/2009
11/11/2009EP2114849A1 Method of purifying dianhydrides
11/11/2009EP2016038B1 Recovery of aromatic dicarboxylic acids from waste polyester resin in the presence of a polyamide
11/11/2009EP1255726B1 (r)-2-aryl-propionamides, useful in the inhibition of il-8 induced chemiotaxis of neutrophils
11/11/2009CN201343509Y Device for producing oxalate by continuous dehydrogenation of formate and co-producing oxalic acid and dihydric phosphate
11/11/2009CN201342422Y Device for treating kitchen garbage to generate organic acid
11/11/2009CN101575289A Method for separating chemical components of daphne genkwa twigs
11/11/2009CN101575284A Novel method for manufacturing PIA
11/11/2009CN101575283A Method for recycling gulonic acid from vitamin C waste mother liquor
11/11/2009CN101575282A Method for using molecular distillation to extract nervonic acid from acer truncatum buge oil
11/11/2009CN101575281A Chloroacetic acid producing method and reaction equipment thereof
11/11/2009CN101575280A Catalyst method for producing sodium diacetate
11/11/2009CN100558694C Azeotropic distillation process for separating acetic acid, methyl acetate and water in the production of an aromatic carboxylic acid
11/11/2009CN100558693C Method for continuous catalytic hydrogenation
11/11/2009CN100558692C Process for the selective conversion of alkanes to unsaturated carboxylic acids
11/11/2009CN100558691C Method for synthesizing 6-hydroxy-2-naphthoic acid
11/10/2009US7615663 Optimized production of aromatic dicarboxylic acids
11/10/2009US7615658 Comprising mixture of formyl-substituted fatty acids or fatty acid esters comprising in terms of formyl distribution from greater than 10 to less than 95 percent monoformyl; can be hydrogenated using organophosphine catalyst to corresponding alcohol for preparation of polyols for polyurethane foams
11/10/2009CA2376522C A process for improving the stability and/or preventing the deactivation of the catalyst during the manufacture of acetic acid and/or of methyl acetate
11/10/2009CA2368652C Site-specific isotopically-labeled proteins, amino acids, and biochemical precursors therefor
11/10/2009CA2341555C Process for the production of acetic acid
11/05/2009WO2009134872A2 Catalytic oxidation reactions in supercritical or near-supercritical water for the production of an aromatic carboxylic acid
11/05/2009WO2009134856A2 Pharmaceutical gallium compositions and methods
11/05/2009WO2009134333A1 Method and apparatus for carbonylating methanol with acetic acid enriched flash stream
11/05/2009WO2009134332A2 Methanol carbonylation system having absorber with multiple solvent options
11/05/2009WO2009133813A1 Process for producing acrylic acid, and process for producing hydrophilic resin and process for producing water absorptive resin using the process
11/05/2009WO2009133366A2 Metal organic framework compounds
11/05/2009WO2007135041A3 Process for preparing acrolein or acrylic acid or a mixture thereof from propane
11/05/2009US20090275778 Process for preparing high purity corosolic acid and high purity ursolic acid
11/05/2009US20090275777 Carboxylic Acid Production Process Employing Solvent from Esterification of Lignocellulosic Material
11/05/2009US20090275774 Process for the Preparation of Carboxylic Acids and/or Derivatives Thereof
11/05/2009US20090275656 Medicinal Compositions of Salts, Chelates and/or Free Acids of Alpha Hydroxyl Organic Acids and Related Processes and Methods
11/05/2009CA2723739A1 Catalytic oxidation reactions in supercritical or near-supercritical water for the production of an aromatic carboxylic acid
11/05/2009CA2722571A1 Pharmaceutical gallium compositions and methods
11/05/2009CA2722267A1 Methanol carbonylation system having absorber with multiple solvent options
11/05/2009CA2721922A1 Method and apparatus for carbonylating methanol with acetic acid enriched flash stream
11/04/2009EP2113498A1 Method for partial oxidation or ammoxidation with an iron molybdate catalyst
11/03/2009US7612234 Reacting the carbon monoxide with chlorine to form phosgene and then optionally separating the phosgene from the hydrogen chloride-containing gas; hydrogen chloride-containing gas that is used preferably derives from a phosgenation or isocyanate forming reaction
11/03/2009US7612232 Azeotropically removing terpene or terpenoid impurities from the mixture of acetic acid and water supplied to distillation column as distillate and withdrawing a product stream from the column comprising acetic acid purified of terpene or terpenoid impurities
11/03/2009US7612231 Method for recovering acrylic acid
11/03/2009US7612230 Method for producing acrylic acid
11/03/2009US7612221 Transesterifying a feedstock containing lipid-linked fatty acids with an alcohol and an alkaline catalyst wherein feedstock has not been previously treated to release lipid components of feedstock, or feedstock has been previously treated to release lipid components and contains residual lipids
10/2009
10/29/2009WO2009130997A1 Process for production of high-purity trimellitic acid
10/29/2009WO2009130387A2 A process for preparation of formate salt
10/29/2009WO2009130386A1 A process for recovery of formic acid
10/29/2009WO2009130085A1 Method for producing and purifying aqueous phases
10/29/2009WO2009129701A1 Application of the iridium complex in asymmetric catalytic hydrogenation for unsaturated carboxylic acid
10/29/2009US20090270652 Process for transferring heat to a liquid comprising dissolved monomeric acrylic acid, michael acrylic acid oligomers and acrylic acid polymer
10/29/2009US20090270651 Methanol carbonylation system having absorber with multiple solvent options
10/29/2009US20090270650 Method and apparatus for carbonylating methanol with acetic acid enriched flash stream
10/29/2009US20090270649 Process for alkaline hydrolysis of carboxylic acid derivatives to carboxylic acids
10/29/2009US20090270643 Method for producing an oxygen-containing compound used as fuel additive, in particular in diesel fuels, gasoline, and rapeseed methyl ester
10/29/2009US20090270282 A reversibly thickenener for water-based wellbore fluids also soluble in organic and aqueous fluids comprising a branched long-chain carboxylic acid, sulfate or sulfonate or salt thereof; aqueous viscoelastic solutions via micellar aggregation; hydrophobic; broken gel mixes with hydrocarbon in well
10/29/2009CA2721168A1 A process for preparation of formate salt
10/29/2009CA2721165A1 A process for recovery of formic acid
10/28/2009EP2112135A2 E2, E4,Z8-undecatrienoic acid and ester and carboxamide derivatives thereof, organoleptic uses thereof and processes for preparing same
10/28/2009EP2111388A1 Process for the synthesis of halogenated aromatic diacids
10/28/2009EP2111387A1 New method for preparing unsaturated fatty hydroxy-acids
10/28/2009EP2111295A1 Process for the ammoxidation of propane and isobutane using mixed metal oxide catalysts
10/28/2009EP1542957B9 Process for preparing fluorocarboxylic acids
10/28/2009CN101568514A Process for producing (meth)acrylic acid
10/28/2009CN101568513A Method and system for separation and purification of high-purity 2,6-dimethylnaphthalene by continuous crystallization
10/28/2009CN101568512A Process for synthesis of ethers of aromatic acids
10/28/2009CN101568511A Process for the synthesis of ethers of aromatic acids
10/28/2009CN101565435A P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions
10/28/2009CN101565434A Spiro phosphine-oxazoline and preparation method and application thereof
10/28/2009CN101565369A Method for preparing 3-bromine-5-trifluoromethylbenzoic acid
10/28/2009CN101565368A Method for preparing 2,2'-biphenyldicarboxylic acid
10/28/2009CN101565367A Preparation method of conjugated linoleic acid
10/28/2009CN101565366A Application of iridium complex in asymmetry catalytic hydrogenation of unsaturated carboxylic acid
10/28/2009CN101565365A Preparation method of alpha, beta-unsaturated acid
10/28/2009CN100554236C Method for producing carboxylic acid compound
10/28/2009CN100554235C Preparation method of alkoxyl mandelic acid
10/27/2009US7608734 Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with high efficiency
10/27/2009US7608733 Optimized liquid-phase oxidation
10/27/2009US7608732 Optimized liquid-phase oxidation
10/27/2009CA2393391C Method for commercial preparation of preferred isomeric forms of ester free conjugated fatty acids with solvent systems containing polyether alcohol solvents
10/22/2009WO2009128608A2 Oxidation reactor for manufacturing of crude terephthalic acid
10/22/2009WO2009127117A1 A process for resource processing purified terephthalic acid waste residue
10/22/2009WO2009093862A3 Environmentally friendly method for preparing terephthalic acid employing multistep oxidations
10/22/2009US20090263670 Method of Fabricating Lipid Bilayer Membranes on Solid Supports
10/21/2009EP2109599A1 Process for the synthesis of ethers of aromatic acids
10/21/2009EP2109598A1 Process for the synthesis of ethers of aromatic acids
10/21/2009EP1534427B1 An adamantyl catalyst system
10/21/2009CN101563314A Process for the synthesis of ethers of aromatic acids
10/21/2009CN101563313A Process for the synthesis of ethers of aromatic acids
10/21/2009CN101563312A Process for producing intermediate of asenapine synthesis
10/21/2009CN101563311A Method for preparing acrylic acid from glycerol
10/21/2009CN101563310A Carbonylation of conjugated dienes
10/21/2009CN101560150A Method for extracting shikimic acid from aniseed
10/21/2009CN101560149A Preparation method of p-isopropylcyclohexanecarboxylic acid
10/21/2009CN101560148A Method for preparing glyoxalic acid by oxidizing glyoxal by chlorine and chlorate
10/21/2009CN101560147A Synthetic method of 2, 3-dibromo-2-methylpropanoic acid
10/21/2009CN101560146A Preparation method of paraphthaloyl chloride with high purity
10/21/2009CN101560011A Method of recycling cyclohexanone waste lye
10/21/2009CN101559927A Green technology for synchronously producing chlorine dioxide and glyoxalic acid
10/21/2009CN100551896C Method for preparing 10 - hydroxy capric acid
10/21/2009CN100551895C Method of recovering acetic acid from acetic acid containing waste water
10/21/2009CN100551894C Method for producing terephthalic acid
10/21/2009CN100551893C Method of preparing calcium propionate and calcium lactate with oyster shell as calcium source
10/21/2009CN100551528C Method for producing a multi metal oxide catalyst, method for producing unsaturated aldehydes and/or carboxylic acids and band calcination device
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