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)
10/2012
10/11/2012US20120259138 Methods and systems of producing dicarboxylic acids
10/11/2012US20120259127 Process for the resolution of enantiomers by preferential evaporative crystallization
10/11/2012CA2830477A1 Process for the manufacture of .alpha.,.alpha.-branched carboxylic acid vinyl esters
10/10/2012EP2508548A1 Method for removal of the cyclic diester of a 2-hydroxy alkanoic acid from a vapor
10/10/2012EP2508502A1 Process for the manufacture of alfa,alfa branched carboxylic acid vinyl esters
10/10/2012EP2508501A2 Methods and systems of producing dicarboxylic acids
10/10/2012EP2508256A1 Process for production of catalyst for use in production of methacrylic acid, and process for production of methacrylic acid
10/10/2012EP2507200A1 Carboxylic acid recovery and methods related thereto
10/10/2012EP2507199A2 Producing acetaldehyde and/or acetic acid from bioethanol
10/10/2012CN202478925U Reaction kettle for preparing 2,3,4,5-tetrafluorobenzoyl chloride
10/10/2012CN202478898U Preparation system of 2, 3, 4, 5-tetrafluorobenzoyl chloride
10/10/2012CN102725273A Clathrate and method for producing same
10/10/2012CN102725258A Cyclohexane-1,4-dicarboxylates
10/10/2012CN102725257A Continuous process of oxidative cleavage of vegetable oils
10/10/2012CN102725048A Method for oxidizing hydrocarbons
10/10/2012CN102718746A Trioxymethylene fumarate crystal form A and pharmaceutical usage thereof
10/10/2012CN102718709A Novel method for preparing amonafide
10/10/2012CN102718650A 2-(2- hydroxyl-5-(methoxycarbonyl) phenoxyl) benzoic acid as well as preparation method and application thereof
10/10/2012CN102718649A Chemical synthesis method of 2, 3, 4, 5-tetrafluoro-benzoic acid
10/10/2012CN102718648A Preparation technology of DV-chrysanthemyl chloride with cis-trans ratio of 80:20-25:75
10/10/2012CN102718647A Magnesium Danshensu and its preparation method and use
10/10/2012CN102718646A Method for producing tertiary carboxylic acid
10/10/2012CN102718645A Microwave synthesis method of cinnamic acid derivative
10/10/2012CN102716768A 2-aryl-zinc-propionate catalyst and preparation method and application thereof
10/10/2012CN102336925B Method for preparing compound fatty acid cobalt salt
10/10/2012CN102126943B Recycling and separating process of heavy component residual liquid in carbonylation production process of acetic acid
10/10/2012CN101695657B Method for producing lactic acid by using glycerin and special catalyst for production of lactic acid by using glycerin
10/10/2012CN101654411B Process for producing gallic acid by hydrolyzing buffer solution
10/10/2012CN101616732B Process for the ammoxidation of propane and isobutane using mixed metal oxide catalysts
10/10/2012CN101522300B Process for regenerating ruthenium catalysts which are suitable for hydrogenation
10/10/2012CN101426755B Method for preparing an organic amine-lactic acid complex
10/10/2012CN101189203B Ortho-nitrosophenols as polymerization inhibitors
10/09/2012US8283493 Process for the production of acetic acid
10/09/2012US8283483 Triglyceride macromonomers
10/09/2012US8283482 Method for producing cross-coupling compound
10/05/2012CA2774341A1 Methods and systems of producing dicarboxylic acids
10/04/2012WO2012134898A2 Steam re-calcination of mixed metal oxide catalysts
10/04/2012WO2012134543A1 Vent scrubbers for use in production of ethanol
10/04/2012WO2012134397A1 Synthesis of diacids
10/04/2012WO2012133501A1 Method for purifying difluoroacetic acid chloride
10/04/2012WO2012133336A1 Dehydroabietic acid derivative, method for producing same, and method for producing 12-carboxydehydroabietic acid derivative
10/04/2012WO2012133061A1 Method for producing benzene tetracarboxylic acid
10/04/2012WO2012131483A1 Activated carbon-metal organic framework composite materials with enhanced gas adsorption capacity and process for the preparation thereof
10/04/2012WO2012131299A1 Process for producing lactate
10/04/2012WO2012131028A1 Process to produce adipic acid and diesters thereof in a carbonylation process using palladium bidentate biphosphate ligands
10/04/2012WO2012131027A1 Process for the preparation of alkanoic acid esters in a carbonylation process using palladium bidentate biphosphate ligands
10/04/2012WO2012103330A3 Method of purifying a dicarboxylic acid
10/04/2012US20120253069 Method for separation and purification of long-chain diacids
10/04/2012US20120253067 Catalyst System and Process for Converting Glycerol to Lactic Acid
10/04/2012US20120252999 Production of chemical compounds
10/03/2012EP2505577A1 Method for production of (meth)acrylic acid
10/03/2012EP2504307A1 Process for the crystallization of succinic acid
10/03/2012EP2504306A1 Method of preparing highly fluorinated carboxylic acids and their salts
10/03/2012CN202460616U Push agitating type hydrolysis kettle
10/03/2012CN102712939A Process for the fermentative preparation of (3-hydroxy)propionaldehyde in the presence of semicarbazide or carbohydrazide
10/03/2012CN102712562A Continuous process for production of derivatives of saturated carboxylic acids
10/03/2012CN102712551A Method and device for producing alkene derivatives
10/03/2012CN102702573A Preparation method of environment-friendly compound adhesion promoter
10/03/2012CN102702190A Berberine electrostatic composite and preparation method of berberine electrostatic composite
10/03/2012CN102702081A Hydroxy pyridine divalent ionic liquid and preparation process and application thereof
10/03/2012CN102701972A Octachlorostyrene hapten, artificial antigen and specific antibody
10/03/2012CN102701965A Preparation method of 4-acetylbenzoic acid
10/03/2012CN102701964A Method for synthesizing 4,4'-diphenic acid
10/03/2012CN102701963A Method for preparing potassium hydrogen terephthalate
10/03/2012CN102701962A Method for preparing terephthalic acid by using alkali reduction wastewater as raw material
10/03/2012CN102701961A Optimized liquid-phase oxidation
10/03/2012CN102701960A Method and device for refining crude products of m-phthaloyl chloride
10/03/2012CN102701959A Novel method for extracting benzoic acid from TA (Terephthalic Acid) residues
10/03/2012CN102701958A Novel antibacterial acyl-phenoxy acetic acid, acyl-cinnamic acid and preparation methods of antibacterial acyl-phenoxy acetic acid and acyl-cinnamic acid
10/03/2012CN102701957A Production method of trans-ferulic acid and ester compound
10/03/2012CN102701956A Method for transforming danshinolic acid B into tanshinol
10/03/2012CN102701955A Application of acidic ionic liquid in catalyzing and synthesizing diphenolic acid and/or diphenolic acid ester
10/03/2012CN102701954A Preparation method of alpha-ketovaline calcium
10/03/2012CN102701953A Method for continuously preparing sodium gluconate crystal by using third effect forced circulation evaporating crystallizer
10/03/2012CN102701952A Method for preparing retarded sodium gluconate
10/03/2012CN102701951A Method for producing sodium gluconate from sodium gluconate fermentation liquid
10/03/2012CN102701950A Method for continuously producing lactate by utilizing heavy phase lactic acid
10/03/2012CN102701949A Method for preparing 2-[4-(2-methyl-1-propenyl)phenyl]propionic acid
10/03/2012CN102701948A Refining method for ibuprofen production
10/03/2012CN102701947A Method for decoloring itaconic acid fermented liquid
10/03/2012CN102701946A Method for separating phenylsuccinic acid enantiomer by extraction from multi-stage centrifugal inclusion reaction
10/03/2012CN102701945A Synthetic preparation method of scheelite flotation collector
10/03/2012CN102701944A Method for preparing 2-ethyl hexanoic acid by catalytically oxidizing 2-ethylhexanal by molybdovanadophosphoric acid
10/03/2012CN102701943A Synthetic method of 3-methylvaleric acid and application of obtained product
10/03/2012CN102701942A Method for synthetizing acetic acid through direct oxidation by using ethylene
10/03/2012CN102701941A Acetone removal device of acetic acid recovery system and removal process of acetone removal device
10/03/2012CN102701940A Optimized liquid-phase oxidation
10/03/2012CN102701908A Process for preparing neopentyl glycol with calcium method
10/03/2012CN102698808A Composite catalyst and use of composite catalyst in synthesis of adipic acid by clean catalytic oxidation of cyclohexene
10/03/2012CN102698746A Method for recovering lost noble metal catalyst at sodium gluconate oxidation section
10/03/2012CN102698744A Sandwich cylindrical catalyst and preparation method thereof
10/03/2012CN102698675A Recovery tower and recovery process for benzoic acid in pure terephthalic acid (PTA) residues
10/03/2012CN102698603A Method for producing tartaric acid
10/03/2012CN102127021B Preparation method of water-soluble amino acid-derived bisbenzimidazole salt
10/03/2012CN101928642B Method for extracting and separating spice and medicinal components from whole plants of Dendranthema indicum
10/03/2012CN101811958B Process for separating and extracting natural ferulic acid with content not more than 98% from wastes in rice bran oil processing
10/03/2012CN101774909B Method for preparing 4, 4'-diphenyl ether dicarboxylic acid
10/03/2012CN101721955B Discharging system and discharging process in particle sodium benzoate production process
10/03/2012CN101691326B Acid-adjusting hydrolysis process for preparing levulinic acid
10/03/2012CN101657408B Method for preparing unsaturated aldehyde and/or unsaturated fatty acid using fixed-bed catalytic partial oxidation reactor
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