| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 11/03/2004 | EP1473275A1 Metallized mesoporous silicate and method of oxidation with the same |
| 11/03/2004 | EP1473081A1 Catalyst for the selective oxidation and ammoxidation of alkanes and/or alkenes, particularly in processes for obtaining acrylic acid, acrylonitrile and the derivatives thereof |
| 11/03/2004 | EP1472228A1 Process for the manufacture of hmg-coa reductase inhibitors |
| 11/03/2004 | EP1313688B1 Tmp/steam pressure filtration |
| 11/03/2004 | EP1242521B1 Recovery of modifier compounds and polar organic compounds from a poly(arylene sulfide) recycle mixture |
| 11/03/2004 | EP1194238B1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 11/03/2004 | EP1144382B1 Process for preparing 1,5-diaryl-3-substituted pyrazoles |
| 11/03/2004 | EP1019353B1 Improved metal-ligand complex catalyzed processes |
| 11/03/2004 | CN2652929Y Air lift external circulation bubbling tower oxidation device for producing terephthalic acid |
| 11/03/2004 | CN1543451A Receptor modulators activated by peroxizonal proliferators (ppar) |
| 11/03/2004 | CN1543450A Process for the preparation of aromatic dicarboxylic acids |
| 11/03/2004 | CN1173921C Apparatus and process for producing methyl methacrylate or methyl acrylic acid with high output rate |
| 11/03/2004 | CN1173920C Method for separating and purifying adipic acid |
| 11/03/2004 | CN1173919C Method for making adipic acid |
| 11/03/2004 | CN1173914C Improved separation processes |
| 11/02/2004 | US6812366 Catalyst useful for oxidation reactions |
| 11/02/2004 | US6812363 Racemization of optically active 2-substituted phenyl glycine esters |
| 11/02/2004 | US6812351 Hollow cylindrical catalyst and a method for producing a maleic acid anhydride |
| 11/02/2004 | US6812244 Naphthyl compounds, intermediates, compositions, and methods of use |
| 11/02/2004 | US6812188 Catalyst for methacrylic acid production, coated catalyst, and process for producing the same |
| 10/28/2004 | WO2004092249A1 Perdeuterated poliimides, method for the production and use thereof in the form of transparent materials in the range of 2500-3500 cm-1 |
| 10/28/2004 | WO2004092122A2 Preparation and purification of synthetic capsaicin |
| 10/28/2004 | WO2004092113A1 Optically active 2-allylcarboxylic acid derivative and process for producing the same |
| 10/28/2004 | WO2004092108A1 Thermal rectification method, and rectifying column |
| 10/28/2004 | WO2004092107A1 CRYSTAL OF p-HYDROXYBENZOIC ANHYDRIDE AND PROCESS FOR PRODUCING THE SAME |
| 10/28/2004 | WO2004092056A2 Cogeneration of organic compounds with synthesis gas by catalytic partial oxidation |
| 10/28/2004 | WO2004091779A1 Method for producing metal oxide catalyst |
| 10/28/2004 | WO2004081169A3 Method of preparing alpha, beta-difluoroacrylic compounds |
| 10/28/2004 | WO2004080942B1 Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil |
| 10/28/2004 | US20040215036 Method for heating a crude carboxylic acid slurry in a post oxidation zone by the addition of steam |
| 10/28/2004 | US20040214936 Liquid overbased mixed metal stabilizer composition of calcium, barium and zinc for stabilizing halogen-containing polymers |
| 10/28/2004 | US20040213718 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 10/28/2004 | US20040213711 Catalytic oxidation reactor with enhanced heat exchanging system |
| 10/28/2004 | DE10344265A1 (Meth)acrylic acid production in high yield, for use as monomer, by gas-phase oxidation of saturated hydrocarbon precursor(s) over two beds of mixed metal oxide catalysts with specific selectivity properties |
| 10/28/2004 | DE10337788A1 (Meth)acrolein and/or (meth)acrylic acid production in high yield, for use as monomer, by gas-phase oxidation of organic precursor(s) over catalyst using induction period at reduced charge rate |
| 10/28/2004 | DE10317436A1 Thermal separation between at least one gaseous and liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column whose surface is sprayed with polymerization inhibitor |
| 10/28/2004 | DE10316465A1 Heterogeneously catalyzed partial oxidation of propane and/or isobutane to (meth)acrylic acid involves separating product, dividing residual product gas into portions to be recycled and discharged, and recycling at pressure of feeding step |
| 10/28/2004 | CA2521925A1 Preparation and purification of synthetic capsaicin |
| 10/28/2004 | CA2497079A1 Perdeuterated poliimides, method for the production and use thereof in the form of transparent materials in the range of 2500-3500 cm-1 |
| 10/27/2004 | EP1471048A1 Process for production of high-purity crystals of glycolic acid |
| 10/27/2004 | EP1471047A1 Process for producing dicarboxylic acid |
| 10/27/2004 | EP1471046A1 Multipipe reactor, vapor phase catalytic oxidation method using multipipe reactor, and start-up method applied to multipipe reactor |
| 10/27/2004 | EP1470099A1 Process for puriying an organic acid |
| 10/27/2004 | EP1470098A1 Process control in production of acetic acid via use of heavy phase density measurement |
| 10/27/2004 | CN1541202A Statilisation of ethylenically-unsaturated compounds with amidoximes |
| 10/27/2004 | CN1541199A Method for producing high-purity (meth) acrylic acid |
| 10/27/2004 | CN1541198A Mfg. process for prepn. of a, a-branched alkane carboxylic acids providing esters with improved softness |
| 10/27/2004 | CN1539809A Method for controlling density ofsizing agent in hydrorefining work section of equipment of fine terephthalic acid |
| 10/27/2004 | CN1539808A Process for preparing alpha-Beta unsaturated carboxylic acid |
| 10/27/2004 | CN1539802A Method of controlling operation of gas-phase reactor |
| 10/27/2004 | CN1172898C Process for recovery of diacid ester from waste lye from preparation of caprolactam |
| 10/27/2004 | CN1172897C Purification of acrylic acid obtained by catalytic oxidation of propylene |
| 10/27/2004 | CN1172895C Process for producing acetic acid |
| 10/27/2004 | CN1172894C Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| 10/26/2004 | US6809219 Vapor phase oxidation using composite oxide catalyst |
| 10/26/2004 | US6809093 Drug resistance therapy |
| 10/26/2004 | US6808689 Reactor for catalytic gas phase oxidation |
| 10/21/2004 | WO2004089858A1 Method for the production of at least one partial oxidation and/or ammoxidation product of a hydrocarbon |
| 10/21/2004 | WO2004089856A2 Method for the heterogeneously catalyzed partial direct oxidation of propane and/or isobutane into acrylic acid and/or methacrylic acid |
| 10/21/2004 | US20040210088 Lactic acid processing; methods; arrangements; and, products |
| 10/21/2004 | US20040210087 Process for preparing carboxylic acids and derivatives thereof |
| 10/21/2004 | US20040210086 Methods for producing unsaturated carboxylic acids and unsaturated nitriles |
| 10/21/2004 | US20040210085 catalytic vapor-phase oxidation of propane, propylene, and/or acrolein and purifying the acrylic acid produced, adjusting viscosity at 20 degrees C. of the liquid to 2Pa*s (2,000 cP) or less and extracting polymerization inhibitor from liquid by using an aqueous medium |
| 10/21/2004 | US20040210084 liquid phase oxidation of 2,6-dimethylnaphthalene in the presence of oxygen and a cobalt, manganese or bromine catalyst compound, isolation; high purity industrial monomer for polyethylene naphthalate production |
| 10/21/2004 | US20040210078 synergistic mixtures with phenols or phenothiazines; (meth)acrylic acid, (meth)acrolein, vinyl aromatics, (meth)acrylic esters, (meth)acrylonitrile, (meth)acrylamide, olefins, or C4 to C8 conjugated dienes; nitrilotris(acetamidoxime) or nitrilotris(propionamidoxime); polymerization inhibition |
| 10/21/2004 | US20040210030 hydroxylation of 3-cyclopropylacrylic acid to form 3-cyclopropyl-3-hydroxy-propionic acid; heating 3-cyclopropyl- beta -propiolactone to form vinylcyclopropane; depolymerization of poly(3-cyclopropyl-3-hydroxypropionate) to form alkali or alkaline salts of 3-cyclopropylacrylic acid |
| 10/21/2004 | US20040206617 Thermal separating process |
| 10/21/2004 | DE10316039A1 Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon e.g. isobutane involves partially dehydrogenating saturated hydrocarbon under heterogeneous catalysis |
| 10/21/2004 | DE10314203A1 Verfahren zur Trennung/Aufarbeitung von(meth)acrylsäurehaltigen Gemischen durch Einsatz von ionischen Flüssigkeiten und hyperverzweigten Polymeren A process for the separation / processing of (meth) acrylic acid-containing mixtures by use of ionic liquids and hyperbranched polymers |
| 10/20/2004 | EP1468980A1 Process for making isobutyric anhydride |
| 10/20/2004 | EP1468979A1 Process for preparing S-(-)-chlorosuccinic acid |
| 10/20/2004 | EP1467812A2 Manganese(iv)-complex salts and their use as oxidation catalysts |
| 10/20/2004 | EP1467695A2 Hiv integrase inhibitors |
| 10/20/2004 | EP1345881B1 Method for rapidly cooling a hot gas mixture containing (meth)acrylic acid |
| 10/20/2004 | CN1538948A Preparation of water-absorbent resin |
| 10/20/2004 | CN1538947A Improvement to methods for continuous production of acetic acid and/or methyl acetate |
| 10/20/2004 | CN1538946A Flexible method for common production of formic acid, carboxylic acid having at least two carbon atoms, and/or derivatives of the same |
| 10/20/2004 | CN1538876A Novel catalytic formulation and its preparation method |
| 10/20/2004 | CN1537848A Process for simultaneous production of maleic anlydride and its hydrogenated derivatives |
| 10/20/2004 | CN1537841A Production technology of high activity high purity chelate calcium |
| 10/20/2004 | CN1537840A Rhoaium/inorganic iodine compound catalyst system for reducing impurity in acetic acid production |
| 10/20/2004 | CN1171845C Ethylene glycol antimony acetate and its preparation method |
| 10/20/2004 | CN1171844C Lactic acid processing methods, arrangements and products |
| 10/20/2004 | CN1171843C Production of chlorocarboxylic acid chlorides |
| 10/19/2004 | US6806385 Rectification is carried out with the addition of a surfactant |
| 10/19/2004 | US6805847 Turning angle of outlet of gas feed nozzle in the oxidation reactor is controlled such that the outlet of the gas feed nozzle faces interior wall, thereby minimizing contact time of a reaction, thus minimizing solvent oxidation |
| 10/14/2004 | WO2004087632A1 Method for producing optically active carboxylic acid |
| 10/14/2004 | WO2004087631A2 A process for the recovery of citric acid |
| 10/14/2004 | US20040204618 Method for producing a fluorine-containing compound |
| 10/14/2004 | US20040204608 Method for purifying (meth)acrylic acid |
| 10/14/2004 | US20040204607 Pressurized vapor phase; dividing gases streams; circulation; discharging; forming acrylic acid, methacrylic acid |
| 10/14/2004 | US20040204597 Method for preparing ruthenium-carrying alumina and method for oxidizing alcohol |
| 10/14/2004 | US20040204596 preventing or treating degradation of collagen, degradation of collagen by bacterial collagenases during a bacterial infection, regeneration of skin and ligaments, tumoral invasion and degenerative diseases having fibrinoid degeneration of collagen |
| 10/13/2004 | EP1466895A1 Process for producing 2-aralkylpropionic acid derivative |
| 10/13/2004 | EP1466890A1 Processes for the preparation of glutamic acid compounds and intermediates thereof and novel intermediates used in the processes |
| 10/13/2004 | EP1466885A2 Process for preparing and purifying acrylic acid from propylene having improved capacity |
| 10/13/2004 | EP1466883A1 Method for vapor phase catalytic oxidation |
| 10/13/2004 | EP1465968A2 Methods for treating deodorizer distillate |
| 10/13/2004 | EP1465857A1 Method for producing acrylic acid |
| 10/13/2004 | EP1465856A2 Method for the oxidation of unsaturated hydrocarbons |