| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/12/2003 | EP1282591A2 Process for the production of carboxylic acids |
| 02/12/2003 | EP1032566B1 Method for the preparation of citalopram |
| 02/12/2003 | CN1396904A Novel compound, their preparation and use |
| 02/12/2003 | CN1396901A Low temp. purification of naphthalene dicarboxylic acids |
| 02/12/2003 | CN1396900A Purification method for (meth) acrylic acid |
| 02/12/2003 | CN1396899A Waste water treatment in method for producing formic acid within is free of water |
| 02/12/2003 | CN1396898A Method for producing anhydrous formic acid |
| 02/12/2003 | CN1396151A Tert-butyl salicylic acid complex and its preparing process |
| 02/12/2003 | CN1396150A Decomposition method of Michael-type additive |
| 02/12/2003 | CN1396149A Method for preparing (methyl) acrylate anhydride |
| 02/12/2003 | CN1396148A Process for preparing 2-butenoic acid industrially by oxygen oxidizing method |
| 02/12/2003 | CN1396147A Process for preparing phytic acid |
| 02/12/2003 | CN1395997A Hydrothermal synthesis MO-V-M-X oxide catalyst for selective hydrocarbon oxide |
| 02/12/2003 | CN1395996A Single crystalline phase catalyst |
| 02/12/2003 | CN1101378C Preparation method of long-chain dicarboxylic acid and its ester |
| 02/12/2003 | CN1101377C Process for treating waste liquid after recovering cobalt and manganese in process of producing terephthalic acid |
| 02/12/2003 | CN1101273C Preparation of catalyst consisting of carrier and catalytically active oxide material applied to surface of arrier |
| 02/12/2003 | CN1101270C Method for separating palladium catalyst |
| 02/11/2003 | US6518465 Introducing alkyl ester into pressurized and heated reaction zone of a reactive distillation column to produce carboxylic acid and ether from ester; recovering ether and carboxylic acid |
| 02/11/2003 | US6518453 In a process for stabilizing chemical compounds having at least one ethylenically unsaturated bond to undesired free radical polymerization, a nitroxyl radical and a chemical compound containing phosphorus in chemically bonded form are |
| 02/11/2003 | US6518442 A process for the removal of fluorinated emulsifier acids and salts from a wastewater stream that originates from the making of fluoropolymer, which wastewater stream contains finely divided fluoropolymer solids, the process comprising |
| 02/11/2003 | US6518419 Process for selective oxidation of primary alcohols |
| 02/11/2003 | US6518220 Shaped catalysts |
| 02/11/2003 | US6518216 Catalyst useful for oxidation of alkanes |
| 02/11/2003 | CA2074838C Preparation of platinum group metal and rhenium carboxylates |
| 02/10/2003 | WO2002014250A1 Derivatives of 4-(trifluoromethyl)-phenol and 4-(trifluoromethylphenyl)-2-(tetrahydropyranyl) ether and method for producing the same |
| 02/10/2003 | CA2418749A1 Derivatives of 4-(trifluoromethyl)-phenol and 4-(trifluoromethylphenyl)-2-(tetrahydropyranyl) ether and method for producing the same |
| 02/06/2003 | WO2003009937A1 Iridium-gold carbonylation co-catalysts |
| 02/06/2003 | WO2003009936A2 Palladium-catalysed carbon-carbon bond forming reactions in compressed carbon dioxide |
| 02/06/2003 | WO2002032871A3 Compounds and methods for treating multidrug resistance |
| 02/06/2003 | WO2001037629A8 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 02/06/2003 | US20030028052 Method for absorbing acrylic acid and method for purifying acrylic acid |
| 02/06/2003 | US20030028051 Method for decomposition of michael type adduct |
| 02/06/2003 | US20030028049 Cracking of neo-C9 and neo-C13 carboxylic acids to either pivalic acid or methyl pivalate |
| 02/06/2003 | US20030028046 Method for producing chlorocarboxylic acid chlorides |
| 02/06/2003 | US20030028045 Method for producing chlorocarboxylic acid chlorides |
| 02/06/2003 | US20030027847 Carboxyformylacetamide derivatives for treatment of AIDS or ARC |
| 02/05/2003 | EP1281700A1 Manufacturing process for the preparation of alpha, alpha-branched alkane carboxylic acids providing esters with an improved softness |
| 02/05/2003 | EP1281438A2 Catalyst recovery |
| 02/05/2003 | EP1280756A2 Synthesis of 2-halobenzyl alkanoic acid |
| 02/05/2003 | EP1280747A1 Alkene oligomerization process |
| 02/05/2003 | EP0993433B1 Method for producing calcium pyruvates |
| 02/05/2003 | EP0946300B1 Process for the RECOVERY OF CO/MN FROM ASH |
| 02/05/2003 | CN1395555A Calcium dicarboxylate ethers, method of making same, and treatment of vascular disease and diabetes therewith |
| 02/05/2003 | CN1395554A Process for production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent |
| 02/05/2003 | CN1395553A Utilization of extracting agent as antifoaming agent in production of anhydrous formic acid |
| 02/05/2003 | CN1395552A Method for cleaning off-gas flows |
| 02/05/2003 | CN1395551A Novel arylpropionaldehyde derivatives and production and use of the same |
| 02/05/2003 | CN1395507A Catalysts comprising N-substituted cyclic imides and processes for prepairing organic compounds with catalysts |
| 02/05/2003 | CN1394845A Ethylene glycol antimony acetate and its preparation method |
| 02/05/2003 | CN1394844A Preparation method of L-calcium malate and its special neutralization reactor |
| 02/05/2003 | CN1394843A Solvent-free new synthesis process for simultaneously producing 2,4-dihydroxybenzoic acid and 2,6-diydroxybenzoic acid |
| 02/05/2003 | CN1394842A Separation and purification method of dodecanedioic acid |
| 02/05/2003 | CN1394812A Multi-metal oxide |
| 02/05/2003 | CN1394671A Reactor filled solid particle and gas phase catalytic oxidation using said reactor |
| 02/05/2003 | CN1100915C Method for recovery of formic acid |
| 02/05/2003 | CN1100749C Palladium-carbon catalyst on-line regeneration method for terephthalic acid production apparatus |
| 02/05/2003 | CN1100746C Method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes |
| 02/04/2003 | US6515172 Process for the preparation of perfluorocarboxylic acids |
| 02/04/2003 | US6515171 Process for separating an oxidation reaction product and an oxidation catalyst |
| 02/04/2003 | US6515158 Using chromium salt of salicylic acid |
| 02/04/2003 | US6515153 Process for forming amido esters utilizing a spinning disc reactor |
| 02/04/2003 | US6515146 Process for the oxidation of a hydrocarbon substrate containing at least 20% by volume of an inert gas to a corresponding oxidized hydrocarbon compound by contacting the hydrocarbon substrate with an oxygen containing atmosphere in |
| 02/04/2003 | US6515143 Method for producing ortho-alkylated benzoic acid derivatives |
| 02/04/2003 | US6514903 Useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids; catalyst prepared by calcining dried solution of metal compounds, at least one of which contains oxygen |
| 02/04/2003 | US6514901 Process for preparing a catalyst |
| 02/04/2003 | CA2108268C Improved process for recovery of purified terephthalic acid |
| 02/04/2003 | CA2059233C Carbonylation of olefins |
| 01/30/2003 | WO2003008367A2 Process for the manufacture of aromatic carboxylic acids from aldehydes |
| 01/30/2003 | WO2003008096A1 Catalyst for the selective oxidation and ammoxidation of alkanes and/or alkenes, particularly in processes for obtaining acrylic acid, acrylonitrile and the derivatives thereof |
| 01/30/2003 | WO2003007871A2 Process for the preparation of acitretin |
| 01/30/2003 | WO2002026666A3 Method for manufacturing calcium salts of highly unsaturated fatty acids |
| 01/30/2003 | US20030023115 Reacting an aromatic aldehyde with oxygen containing gas in the presence of a supported Group VIII metal catalyst, and a solven, heating to form aromtic acid |
| 01/30/2003 | US20030023103 Method for preparing non-photosensitive fatty acid silver salt grains and an apparatus for preparing the same |
| 01/30/2003 | US20030023101 Method for production of maleic anhydride |
| 01/30/2003 | US20030019737 Stable distillation of polymerizable compound while inhibiting the polymerization |
| 01/30/2003 | CA2454332A1 Process for the preparation of acitretin |
| 01/29/2003 | EP1279429A1 Perforated tray column without downcomer |
| 01/29/2003 | EP1278711A1 Process for the catalytic oxidation of hydrocarbons |
| 01/29/2003 | EP1192145A4 Process for preparing chiral cyclopropane carboxylic acids and acyl guanidines |
| 01/29/2003 | CN1394198A Method of synthesizing alpha-ketol unsaturated fatty acid |
| 01/29/2003 | CN1393437A Process for preparing enylsuccinic acid anhydride from C13 or C14 olefine |
| 01/29/2003 | CN1100030C Process for producing bromo-undecylic acid |
| 01/28/2003 | US6512143 Salts of N-tert-butylhydroxylamine |
| 01/28/2003 | US6512142 Neutralization of sorbic acid with potassium hydroxide; salt formation; hue and storage stability |
| 01/28/2003 | US6512141 Process for preparing metal oxide catalyst for acrylic acid production |
| 01/28/2003 | CA2032850C Crystalline magnesium valproate and a method for the preparation thereof |
| 01/23/2003 | WO2003006415A1 Cracking of neo-c9 and neo-c13 carboxylic acids to either pivalic acid or methyl pivalate |
| 01/23/2003 | WO2003006414A2 Producing maleic anhydride from a c4 stream in an oxygenate to olefin process |
| 01/23/2003 | WO2003006157A2 Skeketal isomerization of fatty acids |
| 01/23/2003 | WO2002051786A3 Method for producing (meth)acrylic acid |
| 01/23/2003 | WO2002010106A1 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers |
| 01/23/2003 | US20030018217 Reacting acetic anhydride with (meth) acrylic acid and gradually removing some of the acetic acid by-product |
| 01/23/2003 | US20030018216 Method for producing anhydrous formic acid |
| 01/23/2003 | US20030018215 Salt formation of sodium methoxide and valproic acid, purification by azeotropical distillation, filtration; anticonvulsant drugs, in the treatment of epilepsy attacks and convulsive seizures |
| 01/23/2003 | US20030018214 Crystallization process; a combination of at least two different dynamic crystallization processes, suspension crystallization and a layer crystallization |
| 01/23/2003 | US20030018213 Process for monitoring a continuous acetic acid and /or methyl acetate production |
| 01/23/2003 | US20030018212 Vapor-phase esterification or carboxylation in presence of a catalyst having platinum and tin associated with a solid carrier material |
| 01/23/2003 | US20030018208 Halogen promoted multi-metal oxide catalyst |
| 01/23/2003 | US20030018204 Halogen-containing aromatic acid dianhydride, halogen-containing aromatic tetranitrile compound, haltogen-containing aromatic tetracarbonxylic acid and halogen containing m-phenylenediamine compound |