Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
08/2007
08/23/2007WO2007094746A1 5,7-dimethyladamantane-1,3-dicarboxylic acid dialkyl esters, a method for the synthesis thereof and method for synthesising a 5,7-dimethyladamantane-1,3-dicarboxylic acid in the form of an intermediate product
08/23/2007WO2007094404A1 Process for production of optically active carboxylic acid compound
08/23/2007WO2007093702A2 Compound comprising the combination od a first phosphomolybdenum crystal phase and a second crystal phase, and use thereof as alkane oxidation catalyst
08/23/2007WO2007076384A3 Ethanolysis of pet to form det and oxidation thereof
08/23/2007WO2007033508A3 Organic compounds
08/23/2007WO2007010356A3 Process for the preparation of sulfonamide derivatives
08/23/2007US20070197835 Contacting sodium oxalate with aqueous hydrochloric acid, forming precipitated oxalic acid dihydrate in a slurry, separating th oxalic acid dihydrate, neutralizing with a sodium-containing base to form precipitated sodium oxalate in a slurry; recycling the separated sodium oxalate to the reaction zone
08/23/2007US20070197825 Catalytic Wet Oxidation of Lactose
08/23/2007US20070197824 Arylalkylation of an alkyl p-hydroxybenzoate, hydrolysis of the reaction mixture, pH adjustment, phase separation to isolate p-(4-phenylbutoxy)benzoic acid from p-hydroxybenzoic acid
08/23/2007US20070197822 Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream
08/23/2007US20070197669 Treating thermosetting resin comprising polyester and its crosslinking moiety with subcritical water of a temperature lower than thermal decomposition temperature of thermosetting resin; thermosetting resin is decomposed into a polyhydric alcohol, a polybasic acid and residue from the acid; recycling use
08/23/2007US20070197404 having branched aliphatic chains used as reversible well bore fluid thickeners to recover hydrocarbon oil and gas; oil soluble; soluble in both organic and aqueous fluids; high speed breakdown of viscoelastic sols
08/23/2007US20070193960 Process for recovering organic compounds from aqueous streams containing same
08/23/2007US20070193873 Process for producing acrylic acid
08/22/2007EP1820791A1 Method of manufacturing (meth)acrylic acid
08/22/2007EP1819659A1 Method for the production of phthalic dichloride
08/22/2007EP1819658A1 Method for producing 3-halophthalic acid dichlorides
08/22/2007EP1819657A1 Distillation process
08/22/2007EP1742903B1 Pentenoic acid derivatives, processes for the preparation thereof, pharmaceutical compositions comprising them, and therapeutic applications thereof
08/22/2007EP1338318B1 Method of crystallization
08/22/2007EP1319650B1 Process for producing (meth)acrylic anhydride and process for producing (meth)acrylic ester
08/22/2007EP1178952B1 Novel interleukin-1 and tumor necrosis factor-alpha modulators, syntheses of said modulators and methods of using said modulators
08/22/2007EP1138385B1 Preparation of catalyst and use for acrylic acid production
08/22/2007CN1332922C Method for synthesizing 2,2 dimethyl-3-(2,2-ethylene dichloride) cyclopropane carboxyacyl chloride
08/22/2007CN1332920C Method for producing (meth) acrylic acid derivative
08/22/2007CN1332919C Control method for p-xylene oxidation mother liquor circulation rate
08/22/2007CN1332764C Selective oxidation process and catalyst therefor
08/22/2007CN101023052A Synthesis process for 2-(3-hydroxy-1-adamantyl)-2-oxoacetic acid
08/22/2007CN101023046A 优化的液相氧化 Optimized liquid phase oxidation
08/22/2007CN101022886A 优化的液相氧化 Optimized liquid phase oxidation
08/22/2007CN101020918A Process of recovering lutein material from marigold fermenting and squeezing liquid and treating comprehensively
08/22/2007CN101020630A Abietic acid preparing process
08/22/2007CN101020629A Process of separating acetylpropionic acid with active carbon
08/22/2007CN101020628A Prepn process of 2,4-difluoro-3-hydroxybenzoic acid
08/21/2007USRE39794 Vapour phase oxidation of hydrocarbons in the presence of oxidation catalysts to form chemical intermediates for 1,4-butanediol, G-butyrolactone and tetrahydrofuran; efficiency
08/21/2007US7259006 Thraustochytrial strain for production of docosahexaenoic acid comprised of fat and oil for use in treatment of inflammation and lowering blood cholesterol level
08/21/2007US7258766 Contacting vapor phase from catalytic oxidation of propane, propylene and/or acrolein with aqueous medium
08/16/2007WO2007092183A2 Process for the purification of a crude carboxylic acid slurry
08/16/2007WO2007090809A1 Process for preparing porous metal-organic framework materials
08/16/2007US20070191650 Method of producing fatty acid ester
08/16/2007US20070191634 Methods for producing aromatic carboxylic acids
08/16/2007US20070191625 Polymerization of poly vinyl acetate; adding a base and methanol to form poly vinyl alcohol and a methyl acetate byproduct stream; purifying by extractive distillation
08/16/2007US20070191619 Production and purification of esters of conjugated linoleic acids
08/16/2007US20070191224 Palladium, tungsten and zirconium-based catalyst for production of oxygen-containing compound, production process of the catalyst, and production process of oxygen-containing compound using the catalyst
08/16/2007CA2832333A1 Use of predehydration towers in an ethane oxidation to acetic acid/ethylene process
08/16/2007CA2640681A1 Use of predehydration towers in an ethane oxidation to acetic acid/ethylene process
08/15/2007EP1818324A1 Process for producing (Meth) acrylic acid
08/15/2007EP1322596B1 Zwitterionic tachykinin receptor antagonists
08/15/2007CN1332034C Process for producing citric acid and/or citrate
08/15/2007CN1331951C Ogranic acid metal salt and coating liquid contg. same for forming metal xoide film
08/15/2007CN1331837C Nopinic acid preparing process
08/15/2007CN1331836C C60 trans-succinate with biologic activity and its synthesis
08/15/2007CN101018846A Method for producing unsaturated fatty acid concentrate
08/15/2007CN101018757A Preparation of organic acids from aldehyde compounds by means of liquid phase oxidation reaction
08/15/2007CN101018756A Process for the preparation of lactic acid or lactate from a magnesium lactate comprising medium
08/15/2007CN101016243A Method of synthesizing 9-phenanthrene acid
08/15/2007CN101016242A Method of preparing linolenic acid and linolenic acid lower member ester by urea column chromatography
08/15/2007CN101016241A Preparing method for linolenic acid or linolenic acid lower member ester
08/15/2007CN101016240A Method of purifying naphthenic acid for synthesizing cobaltic naphthenate
08/15/2007CN101016239A Method of extracting calcium gluconate from mother liquid after calcium gluconate crystallization
08/15/2007CN101016238A Method of synthesizing solid cobaltic naphthenate
08/15/2007CN101016237A Process for synthesizing R(+)-2-(4-hydroxylphenoxyl) propanoic acid
08/14/2007US7256308 Carbonylating methanol with an iridium carbonylation catalyst, methyl iodide, methyl acetate, water, acetic acid, a promoter of ruthenium, rhenium or osmium, and a bis-phosphonate compound
08/09/2007WO2007088981A1 Process for producing carboxylic acid
08/09/2007WO2007073492A9 Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof
08/09/2007US20070185349 Mixed metal oxide catalyst and process for production of acetic acid
08/09/2007US20070185347 Optimized liquid-phase oxidation
08/09/2007US20070185342 Process for the preparation of lutein ester concentrate
08/09/2007US20070185283 Perdeuterated polyimide, their process of preparation and their use as materials which are transparent within the region from 2500 to 3500 cm-1
08/09/2007US20070185282 Perdeuterated polyimides, their process of preparation and their use as materials which are transparent within the region from 2500 to 3500 cm-1
08/09/2007DE102006004319A1 Bicyclo[4.3.0]nonan-3(4),7(8)-dicarbonsäure und ein Verfahren zu ihrer Herstellung Bicyclo [4.3.0] nonane-3 (4), 7 (8) -dicarboxylic acid and a method for their preparation
08/08/2007EP1815907A2 Regenerated mixed metal oxide catalysts
08/08/2007EP1814923A1 Method for producing water-absorbing polymers
08/08/2007EP1814842A1 Method for preparing (meth)acrylic esters or anhydrides
08/08/2007EP1814660A1 Use of titanium dioxide mixtures for producing catalysts
08/08/2007EP1578714B1 Novel chiral compounds derived from hexanoic acid esters, method and intermediate chemicals for the preparation and use thereof for synthesis of 2-(bromomethyl)2-ethyl hexanoic chiral acid
08/08/2007CN1330625C Distillation apparatus for readily polymerizable compound
08/08/2007CN1330624C Process for the preparation of monochloroacetic acid
08/08/2007CN1330623C Process for producing (meth)acrolein or (meth)acrylic acid
08/08/2007CN1330618C Process for catalytic vapor phase oxidation
08/08/2007CN1330613C Method for producing organic alkyne compounds
08/08/2007CN1330407C Plate type catalytic reaction oven
08/08/2007CN101014690A Polyunsaturated fatty acid monovalent and divalent metal salt synthesis
08/08/2007CN101014561A Process for converting a hydrocarbon to an oxygenate or a nitrile
08/08/2007CN101012248A Method of separating and concentrating iridoid glycosides and crocin in cape jasmine fruit
08/08/2007CN101012166A Method of preparing 1,1-cyclohexanepentanedioic acid by catalyst-free hydrolyzing alpha,alpha'-dicyano-1,1-1,1-cyclohexanediacetylimide ammonium salt in near-critical water medium
08/08/2007CN101012165A Process of preparing oxalic acid by calcium sulfate cycle method
08/08/2007CN101012164A Device and method of refining and separating acetic anhydride of liquid phase carbonyl generation acetic anhydride reaction system
08/08/2007CN101012163A Method of preparing high purity Danshensu
08/08/2007CN101012162A Separating device for methyl acetate hydrolysis product and method
08/08/2007CN101012161A Method of synthesizing 3-methoxy-4-dydroxymandelic acid or 3-ethoxy-4-dydroxymandelic acid by acetaldehyde acid method
08/08/2007CN101012156A Process of preparing dipentaerythritol and/or tripentaerythritol
08/07/2007US7253323 reaction is carried out in the presence of an aromatic hydrocarbon and from 0.01 to 0.2 mol % of an iron catalyst, based on the acid chloride, at a temperature between 60 degrees C. and the boiling point of the particular diluent
08/07/2007US7253316 Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride
08/07/2007US7253315 Continuous acidification and washing of fluorocarboxylate-containing aqueous solution sulfuric acid to form a sulfate-containing fluorocarboxylic acid; pure; reduces loss of the acid from the production system
08/07/2007US7253314 Method for refining easily polymerizable matter-containing substance and apparatus therefor
08/07/2007US7253313 Method for purifying (meth)acrylic acid by oxidising a gaseous substrate
08/07/2007US7253312 Process for producing carboxylic acids
08/07/2007US7253311 Of propene through successive fixed catalyst part-beds A and B, part A containing molybdenum, bismuth and iron oxides, and part B containing molybdenum and vanadium oxides; by-product inhibition of propionic acid and allyl acrylate
08/07/2007US7253310 Preparation of (meth)acrylic acid