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)
12/2012
12/05/2012CN101168623B Method for inhibiting polymerization of (meth) acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor
12/05/2012CN101068766B Optimized liquid-phase oxidation of paraxylene
12/04/2012CA2556954C Process for producing carbonylation products
11/2012
11/29/2012WO2012162028A1 Method to produce and recover levulinic acid and/or gamma-valerolactone from aqueous solutions using alkylphenols
11/29/2012WO2012160256A1 Method and apparatus for separating a hydroxycarboxylic acid product
11/29/2012WO2012160135A1 Hydro-fluorocompounds
11/29/2012US20120302778 Continuous process for the production of derivatives of saturated carboxylic acids
11/29/2012US20120302767 PRODUCTION OF LEVULINIC ACID, FURFURAL, AND GAMMA VALEROLACTONE FROM C5 and C6 CARBOHYDRATES IN MONO- AND BIPHASIC SYSTEMS USING GAMMA- VALEROLACTONE AS A SOLVENT
11/29/2012US20120302766 Solute-enhanced production of gamma-valerolactone (gvl) from aqueous solutions of levulinic acid
11/29/2012US20120302765 Method to produce, recover and convert furan derivatives from aqueous solutions using alkylphenol extraction
11/29/2012DE102011076642A1 Verfahren zur Herstellung von Methacrylsäure A process for the production of methacrylic acid
11/28/2012EP2527316A1 Terephthalic acid composition and use thereof for producing a polyester
11/28/2012EP2525894A1 Method for oxidizing hydrocarbons
11/28/2012CN202555281U Recycling device for oxidizing zone cobalt manganese catalysts
11/28/2012CN102803197A Method for producing crystals of adipic acid
11/28/2012CN102803196A Production of adipic acid and derivatives from carbohydrate-containing materials
11/28/2012CN102803195A Production of adipic acid and derivatives from carbohydrate-containing materials
11/28/2012CN102803194A Production of glutaric acid and derivatives from carbohydrate-containing materials
11/28/2012CN102802790A Method for producing a catalyst for producing methacrylic acid, and method for producing methacrylic acid
11/28/2012CN102796775A Method for extracting lactic acid fermentation product of kitchen waste
11/28/2012CN102796621A Method for preparing calcium fatty acid and biodiesel from eggshells and illegal cooking oil
11/28/2012CN102796048A Preparation method of ionic liquid for efficiently extracting cellulose and application thereof
11/28/2012CN102795995A Squarylium cyanine chemical sensor used for Fe<3+> detection and preparation method thereof
11/28/2012CN102795993A Preparation method of 2-bromo-6-fluorobenzoic acid
11/28/2012CN102795992A Method for coproducing pure terephthalic acid and medium-purity terephthalic acid
11/28/2012CN102795991A 2-valeryl-1,5-cyclohexadiene-1-carboxylic acid, and synthetic method and application thereof
11/28/2012CN102795990A Unintermittent acidolysis process for L-lactic acid
11/28/2012CN102795989A Method for refining dodecanedioic acid
11/28/2012CN102795988A Method for preparing nonane diacid and biomass diesel from tung oil
11/28/2012CN102795987A Method for preparing 3,3,3-trifluoropropionic acid
11/28/2012CN102795986A Method for extracting isostearic acid from monoacid
11/28/2012CN102795985A Method and system for separating calcium formate in preparation process of trimethylolpropane with calcium method
11/28/2012CN102795984A Production method of mixed binary acid with long carbon chain
11/28/2012CN102795964A 20000-ton-annual-yield production technique of trimethylolpropane by calcium method
11/28/2012CN102795963A Process for preparing trimethylolpropane by adopting centrifugal filtering calcium method
11/28/2012CN102794198A Preparation method of catalyst for synthesizing propionic acid by ethanol carbonylation, and application thereof
11/28/2012CN102794180A Preparation of copper-cerium hydrogenation catalyst and catalytic cellulose hydrogenation method thereof
11/28/2012CN102091647B Phosphate modified small-diameter NaY molecular sieve catalyst and preparation method and application thereof
11/28/2012CN101823953B Method for separating lactic acid from fermentation liquor by flocculation and carrying out flocculate comprehensive utilization
11/28/2012CN101693658B Method and device for continuously dynamic crystallization production of calcium lactate
11/28/2012CN101691325B Preparation method and device of raw materials needed in preparing acetic anhydride by carbonylation
11/27/2012US8318978 Process for producing acrylic acid
11/27/2012US8318977 Methanol carbonylation system having absorber with multiple solvent options
11/27/2012US8318631 Process for preparing a catalyst consisting of a support body and a catalytically active composition applied on the surface of the support body
11/27/2012CA2563992C Salts of dihydrojasmonic acid and use thereof in agriculture
11/27/2012CA2513310C Indenoncarboxylic acids derivatives and their use for the treatment of and preventing diabetes and dyslipidaemia
11/22/2012WO2012158573A1 Catalytic carbonylation catalysts and methods
11/22/2012WO2012158182A1 Processes for producing butanediol and diaminobutane from fermentation broths containing ammonium succinates
11/22/2012WO2012158180A1 Processes for producing butanediol (bdo), diaminobutane (dab), from fermentation broths containing ammonium succinate
11/22/2012WO2012156986A1 Eicosapentaenoic acid (epa) as polyunsaturated free fatty acid in its directly compressible powder form and process of isolation thereof
11/22/2012WO2012156921A1 An improved process for catalytic dehydration of lactic acid to acrylic acid
11/22/2012WO2012156362A1 Method for recovering acetic acid
11/22/2012WO2012155368A1 Method for preparing 2, 5-dihydroxyterephthalic acid
11/22/2012WO2012103317A3 Ozonolysis process and safety system for an ozone absorber column
11/22/2012WO2012092253A3 Glycerides and fatty acid mixtures and methods of using same
11/22/2012US20120296118 Sodium diformate production and use
11/22/2012US20120296115 Method for producing polyoxyalkylene alkyl ether carboxylic acid and salt thereof
11/22/2012US20120296111 Catalyst and process for hydrogenating aromatics
11/22/2012US20120295991 Method for producing formic acid
11/21/2012CN202543110U Methyl acetate hydrolyzing device
11/21/2012CN202538402U Quick sewage disposal system used in distillation process
11/21/2012CN102791671A A method for the extraction of shikimic acid
11/21/2012CN102791347A Process and device for distilling polymerization-prone compounds
11/21/2012CN102786441A Preparation method of rivastigmine, intermediates and preparation method of intermediates
11/21/2012CN102786413A Process for fully recovering pure terephthalic acid (PTA) residues by using Henkel reaction
11/21/2012CN102786412A Extraction method for extracting benzoic acid, p-toluic acid, terephthalic acid and isophthalic acid from pure terephthalic acid (PTA) oxidation residues
11/21/2012CN102786410A Treating method and apparatus for reaction solution produced in synthesis of glyoxalic acid through nitric acid oxidation of glyoxal
11/21/2012CN102786409A Refining method for glyoxalic acid
11/21/2012CN102786408A Process for manufacturing reduced water content (meth)acrylic acid
11/21/2012CN102786407A Method of preparing (2R)-2-propyl caprylic acid
11/21/2012CN102786406A Preparation method of rhodium caprylate
11/21/2012CN102786179A Method for treatment and comprehensive utilization of high-concentration organic wastewater
11/21/2012CN102190644B Chiral 3-hydroxypyridin-4-one derivatives, synthesis and application thereof
11/21/2012CN101992084B Rhodium heterogeneous catalyst for carbonylation as well as preparation method and application thereof
11/21/2012CN101857541B Method for preparing potassium cinnamate
11/21/2012CN101844979B Preparation method of disodium stannous citrate crystal
11/21/2012CN101823954B Method for preparing disodium stannous citrate
11/21/2012CN101665423B Method for preparing methanoic acid by potassium formate acidized by phosphoric acid
11/21/2012CN101607884B Technique for producing magnesium stearate by dry method and device
11/21/2012CN101607882B Technique for producing stearate by dry method and device
11/21/2012CN101516820B Process for producing acrylic acid
11/21/2012CN101244996B Vertical type bubbling oxidation reaction device for synthesizing naphthalic acid
11/21/2012CN101107213B Hydrogenation control process
11/20/2012US8314267 reacting sugar-derived 2,5-dimethylfuran with ethylene to form p-xylene, then oxidizing to terephthalic acid; renewable chemicals, renewable monomers
11/20/2012US8314045 Solid acid catalyst
11/15/2012WO2012154396A1 Catalysts for producing acrylic acids and acrylates
11/15/2012WO2012153345A1 Docosahexaenoic acid (dha) as polyunsaturated free fatty acid in its directly compressible powder form and method of isolation thereof
11/15/2012WO2012153043A1 Method for preparing a high-purity glycolic acid
11/15/2012WO2012153042A1 Method for producing a partially purified glycolic acid
11/15/2012WO2012153041A1 Method for purifying glycolic acid by distillation
11/15/2012US20120289743 Catalysts for producing acrylic acids and acrylates
11/15/2012US20120289742 Purification of succinic acid from the fermentation broth containing ammonium succinate
11/15/2012US20120289741 Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid
11/15/2012US20120289740 Catalyst, Method for Manufacturing the Same by Supercritical Fluid and Method for Hydrogenating an Aromatic Compound by Using the Same
11/15/2012US20120289735 Novel bis(formylphenyl) compound and novel polynuclear polyphenol compound derived from the same
11/14/2012EP2522650A1 Process for purifying crude fatty alcohols
11/14/2012EP2522426A1 Heterogeneous catalyst for preparing carboxylic acids and method for preparing carboxylic acids
11/14/2012EP2521704A1 Process for the specific isotopic labeling of methyl groups of val, leu and ile
11/14/2012CN1918104B Process for producing an unsaturated carboxylic acid from an alkane
11/14/2012CN102781901A Process for producing a monomer component from a genetically modified polyhydroxyalkanoate biomass
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