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)
11/2006
11/16/2006	CA2608130A1 Method for preparing catalyst for production of methacrylic acid
11/16/2006	CA2607931A1 Production of biodiesel using expanded gas solvents
11/15/2006	EP1721884A1 Process for producing (meth)acrylic acid
11/15/2006	EP1721883A1 (meth)acrylic acid composition and process for producing the same
11/15/2006	EP1721882A1 Process for the preparation of (2R)-2-Propyloctanoic acid
11/15/2006	EP1720821A1 Removal of permanganate reducing compounds from methanol carbonylation process stream
11/15/2006	EP1720820A1 Control method for process of removing permanganate reducing compounds from methanol carbonylation process
11/15/2006	EP1720819A1 Process for producing carbonylation products
11/15/2006	EP1720814A2 Process for recovering organic compounds from aqueous streams containing same
11/15/2006	EP1351907B1 2-butyl-3-(4- 3(dibutylamino)propoxy benzoyl)-5-nitro-benzofuran hydrochloride and preparation thereof
11/15/2006	CN1863760A Rectificative separation of an acrylic acid-containing liquid
11/15/2006	CN1863759A Powdered overbased amorphous alkaline earth metal salts and processes for making
11/15/2006	CN1861560A Carboxylic acid derivant, its preparation process and pharmaceutical composition
11/15/2006	CN1861559A Process of preparing 2-(substituted phenoxy) propionyl chloride
11/15/2006	CN1861558A Process of extracting cimitt acid
11/15/2006	CN1861557A Method for producing 3,5-di-tert-butyl-4-hydroxybenzoic acid
11/15/2006	CN1284762C Catalyst for production of acetic acid or acetic acid and ethyl acetate, process for production of same
11/15/2006	CN1284623C Method for the production of a catalyst containing vanadium, phosphorus, and oxygen
11/14/2006	US7135597 Process for the preparation of monochloroacetic acid
11/14/2006	US7135596 Vaporization water, solvents; hydrogenation of raw material acid; adding peroxy compound to control concentration of iron
11/14/2006	US7135594 Blowing a gas having a polymerization inhibiting action into a nozzle or conduit connected to a gas-phase portion of the apparatus, wherein gas has a polymerization inhibiting action, is blown into the nozzle or conduit, has a temperature not less than a temperature of the gas-phase portion
11/14/2006	US7135483 Substituted heterocyclic compounds for treating multidrug resistance
11/14/2006	US7135439 Free-flowing products comprising potassium formate
11/14/2006	US7135430 A layered double hydroxide precipitate formed by adding divalent and trivalent metal hydroxides to a solution of a perfluoroalkylcarboxylate or sulfonate; a fixed polymerization catalyst for polytetrafluoroethylene; improved pollution control
11/14/2006	CA2411000C Process for the production of vinyl acetate
11/14/2006	CA2281630C Process for the preparation of stable, non-hygroscopic salts of l(-)carnitine
11/14/2006	CA2193989C Process for preparing carboxylic acid salts and catalysts useful in such process
11/09/2006	WO2006119257A2 Novel phosphorus addition process for improvement of catalysts suitable for maleic anhydride production
11/09/2006	WO2006118187A1 Method for producing 2,2-dichloro-12-(4-halophenyl)dodecanate salt and method for producing production intermediate thereof
11/09/2006	WO2006117326A1 Method for producing tetracarboxylic acids
11/09/2006	WO2006117187A1 Production of sodium diformate
11/09/2006	US20060252954 Oxide catalyst for oxidation or ammoxidation
11/09/2006	US20060252950 Dissolving an expanding gas into a reaction mixture of an alkyl alcohol and a triglyceride or a fatty acid to render the alcohol miscible; and reacting the alcohol with the glyceride or fatty acid to produce an alkyl fatty ester
11/09/2006	US20060252938 Process for the separation of palladium catalyst from crude reaction mixtures of aryl acetic acids obtained by carbonylation
11/09/2006	US20060248789 Overbased metallic salt diesel fuel additive compositions for improvement of particulate traps
11/09/2006	DE102005020890A1 Herstellung von Natriumformiat Preparation of sodium
11/09/2006	DE102005020494A1 Verfahren zur Herstellung von Tetracarbonsäuren A process for preparing tetracarboxylic acids
11/09/2006	CA2607099A1 Production of sodium diformate
11/08/2006	EP1718602A1 Therapeutic and carrier molecules
11/08/2006	EP1718593A1 Stereoselective synthesis of a 4,4-disubstituted cyclohexanepropanoic acid
11/08/2006	EP1718592A1 Cleaving oligomeric (meth)acrylic acid in the liquid phase and under pressure
11/08/2006	EP1501782A4 Improvements in or relating to separation technology
11/08/2006	CN1860237A Method for purifying succinic acid from fermentation broth
11/08/2006	CN1860094A Drying of adipic acid
11/08/2006	CN1860093A Gas phase oxidation catalyst with defined vanadium oxide particle size distribution
11/08/2006	CN1859973A Process for preparing a catalyst for use in oxidation reactions in the gas phase by coating carrier material in a fluidised bed apparatus
11/08/2006	CN1859972A Catalyst for gaseous partial oxidation of propylene and its preparing method
11/08/2006	CN1858034A Environment friendly clean producing method for high pure propane diacid
11/08/2006	CN1283612C Process for producing 4-phenyl-4-oxo-2-butenoic ester derivative
11/08/2006	CN1283609C Method of managing easily polymerizable substance and easily polymerizable substance managing apparatus
11/08/2006	CN1283601C Oxidative halogenation of C* hydrocarbons to halogenated C* hydrocarbons and integrated processes related thereto
11/08/2006	CN1283338C Azeotropic distillation process for producing organic acids or organic acid amides
11/07/2006	US7132569 N,N-disubstituted-2,7-dialkyl-8-aryl-4-octeneamides and the intermediates: N,N-disubstituted-5-halo- or azido-2-alkyl-4-pentenamides and 2-alkyl-5-(4-aryl-2-halo- or azido-3-alkylbutylbutyrolactones that may be used to prepare them
11/07/2006	US7132566 Process for the purification of a crude carboxylic acid slurry
11/07/2006	US7132384 molding catalyst component powders, mixing with graphite particles and calcining, to form mixed oxides, used for gas phase oxidation of olefins or unsaturated aldehyde to produce the corresponding unsaturated aldehyde and/or unsaturated carboxylic acids
11/07/2006	US7132092 Metallized mesoporous silicate and method of oxidation with the same
11/07/2006	US7132051 Liquid-liquid extraction of polar organic substances from their aqueous solutions with fluorinated extracting liquids
11/02/2006	WO2006115721A1 Process for the production of acetic acid
11/02/2006	WO2006115130A1 Calcium bis[(2s)-3-[3-[(2s)-3-(4-chloro-2-cyanophenoxy)-2- fluoropropoxy]phenyl]-2-isopropoxypropionate] and intermediate thereof
11/02/2006	WO2006114506A1 Method for producing acrylic acid from glycerol
11/02/2006	WO2006114428A1 Process for separating by rectification a liquid which contains an acrylic acid and/or a methacrylic acid
11/02/2006	WO2006068157B1 Process for producing acetic acid
11/02/2006	US20060247470 Process for producing optically active carboxylic acid substituted in 2-position
11/02/2006	US20060247469 Process for rectificatively separating a liquid comprising acrylic acid and/or methacrylic acid
11/02/2006	US20060247468 Process for the recovery of citric acid
11/02/2006	US20060247467 Heat-treatment to produce glycolonitrile which is converted to ammonium glycolate using enzyme catalyst having nitrilase activity; low concentrations of impurities, high yield
11/02/2006	US20060247466 reducing and/or removing permanganate reducing compounds or their precursors from intermediate streams during the formation of acetic acid by carbonylation; improve the efficiency of acetaldehyde removal
11/02/2006	US20060247464 Process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water
11/02/2006	US20060247461 Hydrogenation of diisononyl phthalate to diisononyl cyclohexane-1,2-dicarboxylate for example using mesoporous metallosilicate catalyst support such as ruthenium on zeolite MCM-41; improved catalyst selectivity against light by-products
11/02/2006	US20060247458 Process for the production of optically active compounds having substituents at the 2-position
11/02/2006	US20060247456 Reaction product of fatty acid in basic aqueous solution with alkali earth metal sulfate (magnesium sulfate, calcium sulfate)
11/02/2006	US20060247455 Process for extracting a substance or a substance group from a mixture
11/02/2006	US20060247446 Inert nonporous support such as steatite; used for gas-phase partial oxidation of aromatic hydrocarbons for preparing aldehydes, carboxylic acids and/or carboxylic anhydrides
11/02/2006	US20060246557 Process for preparing optically active 2-[6-(hydroxy-methyl)-1,3-dioxan-4-yl] acetic acid derivatives
11/02/2006	US20060245992 Fixed-bed shell-and-tube reactor and its usage
11/02/2006	US20060245991 Processes Employing Multiple Successive Chemical Reaction Process Steps and Apparatus Therefore
11/02/2006	EP1716116A1 Alpha-(trifluoromethyl-substituted aryloxy, arylamino, arylthio or arylmethyl)-trifluoromethyl-substituted phenylacetic acids and derivatives as antidiabetic agents
11/02/2006	EP1716095A1 Method for producing (meth)acrylic acid
11/02/2006	EP1716094A1 Steam recompression in aromatic carboxylic acid processes
11/02/2006	EP1716093A1 Method for producing alpha-hydroxycarboxylic acids and the esters thereof
11/02/2006	EP1409444B1 Improvement to methods for the continuous production of acetic acid and/or methyl acetate
11/02/2006	EP1261574B1 Process for the recovery of organic acids from aqueous solutions
11/02/2006	CA2605331A1 Calcium bis[(2s)-3-[3-[(2s)-3-(4-chloro-2-cyanophenoxy)-2- fluoropropoxy]phenyl]-2-isopropoxypropionate] and intermediate thereof
11/01/2006	CN1856364A Preparation of annular unsupported catalysts
11/01/2006	CN1854128A Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
11/01/2006	CN1853786A Support for gas-phase oxidation catalyst and process for its production, gas-phase oxidation catalyst,and process for producing acrylic acid
11/01/2006	CN1853767A Reactor filled solid particle and gas phase catalytic oxidation using said reactor
11/01/2006	CN1282637C Method for preparing chloroacetic acid by photo chlorination of acetic acid
11/01/2006	CN1282494C Process for obtaining organic and from organic acid ammonium salt, an organic acid amide, or alkylamine organic acid complex
10/2006
10/31/2006	US7129376 Method for the production of a purified melt of at least one monomer
10/31/2006	US7129365 Solvent extraction using free radical scavenger; isolation
10/31/2006	US7129195 Heterogenically catalysed gas-phase partial oxidation method for precursor compounds of (meth)acrylic acid
10/31/2006	US7128813 Series of successive distillation steps
10/26/2006	WO2006113293A1 Efficient and selective conversion of carbon dioxide to methanol, dimethyl ether and derived products
10/26/2006	WO2006112426A1 Process for producing biphenyltetracarboxylic acid
10/26/2006	WO2006044926A3 SYNTHESIS OF FATTY ALCOHOL ESTERS OF α-HYDROXY CARBOXYLIC ACIDS AND THEIR USE AS PERCUTANEOUS ABSORPTION ENHANCERS
10/26/2006	US20060241314 Organopolysiloxanes containing phosphonic groups, method for the production and use thereof
10/26/2006	US20060241313 Selective hydrogenation of oils that contain unsaturated fatty acyl components; hydrogen peroxide-treated copper carbonate/copper hydroxide hydrogenation catalyst
10/26/2006	US20060241312 Method for producing soy bean oil diols
10/26/2006	US20060241310 V-p-ci composite oxide catalyst precursor used for producing maleic anhydride from butance

1 ... 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 ... 432