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)
11/2008
11/12/2008CN100431702C Vanadium/phosphorus mixed oxide catalyst precusor, active catalyst for preparing maleic anhydride and method of preparing maleic anhydride
11/11/2008US7449597 comprises a palladium compound, e.g. PdIm4Cl2, where Im is imidazole and HCl dissolved in water or an alcohol; When the catalyst solvent is water one can obtain an acid as the product, but when the catalyst solvent is an alcohol one obtains an ester as the product
11/11/2008US7449587 useful for solid phase chemical synthesis
11/06/2008WO2008133816A1 Improved method and apparatus for carbonylation with reduced catalyst loss
11/06/2008WO2008132929A1 Process for producing 1,2,3,4-benzenetetracarboxylic acid
11/06/2008WO2008132468A1 Process for the carbonylation of dimethyl ether
11/06/2008WO2008132450A1 Process for the carbonylation of dimethyl ether
11/06/2008WO2008132448A1 Process for the production of methyl acetate
11/06/2008WO2008132442A1 Process for the production of methyl acetate
11/06/2008WO2008132441A1 Process for the carbonylation of dimethyl ether
11/06/2008WO2008132438A1 Process for the carbonylation of dimethyl ether
11/06/2008WO2008132128A2 Synthesis of a pharmaceutically active compound
11/06/2008WO2008132044A1 Novel process for the preparation of acid chlorides
11/06/2008WO2008087315A3 Method for preparing acrylic acid from glycerol
11/06/2008WO2008086942A3 A method for preparation of 6-[3-(1-adamantyl)-4-methoxyphenyl]-2-naphtoic acid
11/06/2008WO2007117590A9 System and method for converting biomass to ethanol via syngas
11/06/2008US20080275271 Dissolving crude terephthalic acid (CTA) in an aqueous medium in a reactor; hydrogenating the impurities; precipitating pure terephthalic acid by cooling; filtering, washing, drying; catalyst is supported in a basket; improved yield, energy efficiency; environmentally friendly
11/06/2008US20080275270 Process for Preparing Quaternary Acid and Ammonium Salts
11/06/2008US20080275132 Includes reaction catalyst and guard column for pretreating one or more reagents, which can increase the life, activity, and/or safety of the reaction catalyst
11/06/2008US20080271984 Handling Device and Producing System of Easy-to-Polymerize Compound
11/06/2008US20080271539 Method of Maintaining a Multitubular Reactor
11/06/2008CA2685513A1 Improved method and apparatus for carbonylation with reduced catalyst loss
11/06/2008CA2684558A1 Process for the carbonylation of dimethyl ether
11/06/2008CA2684548A1 Process for the carbonylation of dimethyl ether
11/06/2008CA2684536A1 Process for the carbonylation of dimethyl ether
11/06/2008CA2684071A1 Process for the carbonylation of dimethyl ether
11/06/2008CA2684067A1 Novel process for the preparation of acid chlorides
11/05/2008EP1988072A1 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers
11/05/2008EP1987877A2 Oxide catalyst, process for producing acrolein or acrylic acid and process for producing water-absorbent resin
11/05/2008EP1986985A1 Intermediates and process for the preparation of aromatic derivatives of 1-adamantane
11/05/2008EP1751083B1 Use of polyalkenyl succinimides in acrylic acid production
11/05/2008EP1723091B1 Synthesis of carbon-labeled perfluoroalkyl compounds
11/05/2008EP1492754B1 Method for making carboxylic acids
11/05/2008EP1306362B1 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers
11/05/2008CN101300219A Novel process for the preparation of acid chlorides
11/05/2008CN101300218A Method for carrying out in a stable manner a process for continuously producing acrolein or acrylic acid or the mixture thereof from propane
11/05/2008CN101300073A Shaped catalyst body for partial oxidation reactions
11/05/2008CN101298416A Method for preparing p-methoxypheny-lethyl acid from natural anethole
11/05/2008CN101298415A Preparation of non-steroidal anti-inflammatory medicine biphenylacetic acid
11/05/2008CN100431072C Composition for electrolytic solution and process for producing the same
11/05/2008CN100430364C Process for preparation of (2R)-2-propyloctanoic acid
11/05/2008CN100430363C Modified method for producing acetic acid through carbonylation, and equipment
11/05/2008CN100430362C Process for preparing high purity crystalline sorbic acid
11/05/2008CN100430141C Process for producing composite oxide catalyst
11/04/2008US7446223 Palladium-containing catalyst and method for producing same
11/04/2008US7446215 Liquid fat or oil ingredient is heated to, mixed with an alkali, dried, and cooled to convert the oily liquid fat or oil ingredient into the solid fat product in dry form; product has the bypass fat function; free-flowing and easy to be handled, delivered and applied
10/2008
10/30/2008WO2008129753A1 Method for producing cross-coupling compound
10/30/2008WO2008129051A2 Organometallic framework materials having a hexagonal-trigonal structure based on aluminum, iron, and chromium, and a dicarboxylic acid
10/30/2008WO2008128988A2 Method for starting a heterogeneously catalyzed partial gas phase oxidation of acrolein into acrylic acid or of methacrolein into methacrylic acid
10/30/2008WO2008128852A1 Improvements in oxidative demetalling
10/30/2008WO2007105052A3 Multiple-metal complex-containing compound and metal complex, and manufacture methods therefor, and exhaust gas purification catalyst manufacture method using the same
10/30/2008US20080269522 Process for operating an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound
10/30/2008US20080269521 Process for starting-up a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or of methacrolein to methacrylic acid
10/30/2008US20080269520 Process for the Carbonylation of a Conjugated Diene to a Dicarboxylic Acid
10/30/2008US20080269519 Process and Catalyst for the Manufacture of Acetic Acid
10/30/2008US20080269518 Method and apparatus for carbonylation with reduced catalyst loss
10/30/2008US20080269509 producing a ketooleanolic acid that can be an intermediate for synthesis of pharmaceuticals; minimize the environmental pollution
10/30/2008US20080269507 Methods for Oxidizing Organic Compounds
10/30/2008US20080269335 Crth2 Receptor Antagonists
10/29/2008EP1985608A1 Process for the carbonylation of dimethyl ether
10/29/2008EP1985607A1 Process for the carbonylation of dimethyl ether
10/29/2008EP1985606A1 Process for the carbonylation of dimethyl ether
10/29/2008EP1985605A1 Process for production of methyl acetate
10/29/2008EP1985604A1 Process for the production of methyl acetate
10/29/2008EP1985603A1 Process for preparing difluorocyclohexanoic acid derivatives
10/29/2008EP1985362A1 Process for the carbonylation of dimethyl ether
10/29/2008EP1984114A2 Preparing a compound comprising a combination of two crystal phases
10/29/2008EP1613581B1 Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil
10/29/2008EP1164121B1 Novel carboxylic acid derivatives and process for producing the same
10/29/2008CN201140071Y Cylinder catalyst for p-benzene dicarboxylic acid hydrogen purification
10/29/2008CN101294169A Novel technique for extracting lactic acid with sodium salt fermentation electrodialysis
10/29/2008CN101293823A Poly-epoxy itaconic acid, preparing method and uses thereof
10/29/2008CN101293822A Method for preparing natural methanoic acid
10/29/2008CN101293213A Rhodium catalyst for carbonyl synthesis of acetic anhydride and preparation method thereof
10/29/2008CN100429198C Preparation method of perfluoro caprylic acid
10/28/2008US7442835 Process and apparatus for the production of phosgene
10/28/2008US7442816 Antimony vanadium phosphate
10/28/2008US7442348 Sulfur-bearing residue treatment system
10/28/2008CA2556520C Chromium-fatty acid compounds and methods of making and using thereof
10/28/2008CA2392032C New process
10/28/2008CA2382248C Production of maleic anhydride
10/23/2008WO2008126475A1 Novel fluorine-containing compound, fluorine-containing polymer, and method for producing the compound
10/23/2008WO2008126104A2 Novel process for preparation of adapalene
10/23/2008WO2008125241A1 Method for producing alkyl polyglycol carboxylic acids and polyglycol dicarboxylic acids
10/23/2008WO2007141662A3 Amidine-carboxylic acid complex, bridged polynuclear complex derived therefrom, production methods therefor, and use for preparing supported metal or metal oxide clusters
10/23/2008US20080262264 Hydrolysis in toluene solvent; oxidation; reacting a cyclohexylamine carboxylate with sulfoxide halide compound
10/23/2008US20080257710 Purification of aqueous solutions of organic acids
10/23/2008CA2689596A1 Method for producing alkyl polyglycol carboxylic acids and polyglycol dicarboxylic acids by means of direct oxidation
10/22/2008EP1981834A2 Acrolein preparation method
10/22/2008CN201136843Y High-efficiency gas-liquid reactor for producing acetic anhydride form liquid-phase carbonyl of methyl acetate
10/22/2008CN201135786Y High temperature evaporator of hexane diacid production system
10/22/2008CN101289388A Crylic acid hydroxylphenyl ester monomer and polymer
10/22/2008CN101289387A 6-chlor-2,3-dihydro- indene-3-ketone-1-carboxyl acid optical isomer and method for preparing same
10/22/2008CN101289386A Method for preparing sodium tanshinol
10/22/2008CN101289385A Process for abstracting high-purity tanshinol form salvia
10/22/2008CN101289384A Use method of multiple-effect falling film concentrating device in production of lactic acid
10/22/2008CN101289383A Process for preparing undecylenic acid by scission of castor oil
10/22/2008CN101289382A Separation process of bromoundecanoic acid by freezing crystal
10/22/2008CN101289381A Process for synthesizing (R)-3-methylhenanthic acid
10/22/2008CN101289380A Process for preparing calcium propionate by using japanese pearl oyster conch
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