| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 03/07/2002 | WO2002018314A1 Process for preparation of fluorinated ketones |
| 03/07/2002 | WO2002018042A1 Process and device for carrying out reactions in a reactor with slot-shaped reaction spaces |
| 03/07/2002 | WO2001079148A3 Method of making benzoyl halides and nitriles |
| 03/07/2002 | WO2001072422A3 Method of removing organic iodides from organic media |
| 03/07/2002 | WO2001051451A3 Methods for manufacturing betulinic acid |
| 03/07/2002 | US20020028968 Production of aromatic carboxylic acids |
| 03/07/2002 | US20020028967 Retardation of discoloration of dicarboxylic acids |
| 03/07/2002 | US20020028965 Integrated process for the production of vinyl acetate and/or acetic acid |
| 03/07/2002 | US20020028960 Methods for manufacturing betulinic acid |
| 03/07/2002 | US20020028947 Improved optical purity over recrystallization method; 2.10 camphorsultam derivative |
| 03/07/2002 | US20020028872 Polymer gel containing a basic functional group derived from at least one compound selected from the group consisting of tertiary amine, quaternary aammonium salt, cyclic amine compounds and sulfides |
| 03/07/2002 | US20020028164 By reducing width of the reaction spaces, the ratio of the surface to the volume of the reaction spaces increases. As a result, problems arising from the limited heat transfer within gases are decreased |
| 03/07/2002 | US20020027067 Lowering the inner oxygen concentration of column handling easily polymerizable compound containing solution below the limit of oxygen concentration by supplying an inert gas |
| 03/07/2002 | DE10041571A1 Verfahren der katalytischen Spaltung von Lactonen Process for the catalytic cleavage of lactones |
| 03/07/2002 | DE10041197A1 TMP/Dampfdruckfiltration TMP / steam pressure filtration |
| 03/07/2002 | DE10040827A1 Verfahren zur Herstellung von Phthalsäureanhydrid A process for preparing phthalic anhydride |
| 03/07/2002 | DE10040818A1 Verfahren zur Gasphasenpartialoxidation von aromatischen Kohlenwasserstoffen Method for the gas phase of aromatic hydrocarbons |
| 03/06/2002 | EP1184362A1 Phenol derivatives, process for preparation of the same and use thereof |
| 03/06/2002 | EP1183101A1 Vanadium/phosphorus mixed oxide catalyst precursor |
| 03/06/2002 | EP1066240B1 Method for producing acrylic acid and acrylic acid esters |
| 03/06/2002 | CN1339021A Oxidation of hydrocarbons to acids in the presence of fluoro compounds |
| 03/06/2002 | CN1338966A Method and device for purifying substances by means of crystallisation |
| 03/06/2002 | CN1338451A Process for separating terephthalic acid from its waste and purifying it |
| 03/06/2002 | CN1080253C Method and apparatus for preparing purified terephthalic acid |
| 03/06/2002 | CN1080252C Process using multistage reactors |
| 03/05/2002 | US6353141 Derived from the metathesis of steam cracking c5 cut, hydroformylation to produce aldehydes; alcohols from hydrogenation, amines from amination, esters from oxidation |
| 03/05/2002 | US6353140 Process for the purification of cyclopropanecarboxaldehyde |
| 03/05/2002 | US6353133 Methanol plant retrofit |
| 03/05/2002 | US6353132 Producing esters and acids from lower alkanols; acetic acid and methyl acetate from methanol and carbon monoxide; solid phase catalyst to reduce or eliminate the handling losses of the catalyst and reduces the need for catalyst recovery |
| 03/05/2002 | US6353022 Compositions containing hydroxyeicosatetraenoic acid derivatives and methods of use in treating dry eye disorders |
| 03/05/2002 | US6352619 Distillation with nonionic surfactant and polymerization inhibitor |
| 02/28/2002 | WO2002016302A1 Fluorinated alkanoic acid purification process |
| 02/28/2002 | WO2002016301A1 Method for the catalytic decomposition of lactones |
| 02/28/2002 | WO2002016300A1 Method for the vapour-phase partial oxidation of aromatic hydrocarbons |
| 02/28/2002 | WO2002016299A1 Method for producing phthalic anhydride |
| 02/28/2002 | WO2002016298A1 Gold catalyst for selective oxidation |
| 02/28/2002 | WO2002016297A1 Method and apparatus for sequestering entrained and volatile catalyst species in a carbonylation process |
| 02/28/2002 | WO2002016294A1 Tmp/steam pressure filtration |
| 02/28/2002 | WO2001085330A3 Tubular reactor with gas injector for gas phase catalytic reactions |
| 02/28/2002 | WO2001058837A3 Process for the preparation of (r)-2-bromo-3-phenyl-propionic acid |
| 02/28/2002 | WO2001051444A3 Co-production of carboxylic acids and/or their esters |
| 02/28/2002 | US20020026087 Process for preparing di-iso-butanes, di-iso-butenes and di-n-butenes from field butanes |
| 02/28/2002 | US20020026077 Process for the recovery of organic acids from aqueous solutions |
| 02/28/2002 | US20020025906 Process for producing carbonyl or hydroxy compound |
| 02/27/2002 | EP1181267A1 Halogen compounds |
| 02/27/2002 | EP1181097A1 Method of producing monolithic oxidation catalysts and their use in gas phase oxidation of carbohydrates |
| 02/27/2002 | CN1337951A Process for preparing 1,5-diaryl-3-substituted pyrazoles |
| 02/27/2002 | CN1337889A Phosphorus/vanadium maleic anhydride catalyst preparation |
| 02/27/2002 | CN1337390A Method for preparing sorbic acid |
| 02/27/2002 | CN1337389A Cis-5,9,12-octade trienic acid derivative and its prepn |
| 02/26/2002 | US6350906 Vapor phase catalytic oxidation |
| 02/26/2002 | US6350904 Method for producing ortho-alkylated benzoic acid derivatives |
| 02/26/2002 | US6350898 Esterification of malonic acid salt with alkyl halide |
| 02/26/2002 | US6350779 Piece-form calcium formate |
| 02/26/2002 | US6350716 To vinyl acetate or acetic acid; multiple oxide includes molybdenum, tungsten, silver, iridium, niobium and/or vanadium; vinyl acetate or acetic acid; catalyst selectivity |
| 02/26/2002 | US6350352 Thin film evaporator, condensers, baffle |
| 02/21/2002 | WO2002014328A1 Direct synthesis of tin (ii) carboxylates and tin (iv) carboxylates from elemental tin or tin oxides |
| 02/21/2002 | WO2002013953A1 Method of recovering fluorochemical surfactant |
| 02/21/2002 | WO2001066504A3 Method for the synthesis of aliphatic carboxylic acids from aldehydes |
| 02/21/2002 | WO2001056966B1 MANUFACTURING PROCESS FOR THE PREPARATION OF α-BRANCHED CARBOXYLIC ACIDS HAVING A DECREASED CONTENT OF BETA-BRANCHED ISOMERS |
| 02/21/2002 | US20020022752 Process for producing a fluorine containing compound by liquid phase fluorination |
| 02/21/2002 | US20020022745 Hydrolyzing a polyester which is a reaction product of crotonaldehyde and ketene with aqueous hydrochloric acid solution, pressurization to produce sorbic acid |
| 02/21/2002 | DE10040051A1 Derivate des 4-(Trifluormethyl)-phenols sowie Derivate des 4-(Trifluormethylphenyl)-2-(tetrahydropyranyl)ethers und Verfahren zu ihre Herstellung Derivatives of 4- (trifluoromethyl) phenol and derivatives of the 4- (trifluoromethylphenyl) -2- (tetrahydropyranyl) ethers and processes for their preparation |
| 02/21/2002 | DE10039025A1 Purification of acrylic acid, used as acid, salt or ester in polymer production, involves cooling crude melt in presence of water and washing crystal suspension with purified crystal melt in column with forced transport of crystals |
| 02/21/2002 | DE10038755A1 Catalytic production of organic substance, e.g. phthalic anhydride, maleic anhydride, acrylic acid, acetic acid or anthraquinone, involves oxidizing starting material using cooling tube reactor with catalyst coating on outside of tubes |
| 02/21/2002 | DE10038457A1 Verfahren zur Gewinnung von Sterinen und Tocopherolen A process for the production of sterols and tocopherols |
| 02/21/2002 | CA2418713A1 Direct synthesis of tin (ii) carboxylates and tin (iv) carboxylates from elemental tin or tin oxides |
| 02/20/2002 | EP1180508A1 Method for starting up reactor |
| 02/20/2002 | CN1336912A Novel propargylether derivatives |
| 02/20/2002 | CN1336908A Method for producing acrolein by heterogeneous catalytic gas-phase partial oxidation of propene |
| 02/20/2002 | CN1336360A Method for prepn. of acetic acid |
| 02/20/2002 | CN1336357A Prepn. of diisobutane, diisobutylene and dibutylene by using petrobutane |
| 02/20/2002 | CN1079389C Process for refining long-chain biatomic acid |
| 02/20/2002 | CN1079288C Method for stabilizing rhodium compound |
| 02/19/2002 | US6348638 Method for removing by-products obtained when producing acrylic acid or methacrylic acids |
| 02/19/2002 | US6348624 Process for making certain benzoic acid compounds |
| 02/19/2002 | US6348620 Method for homogeneous enantioselective hydrogenation using catalytic ferrocenyl bis-phosphine complexes |
| 02/19/2002 | US6348609 Method for obtaining an oil that is rich in hydroxyoctadecadienoic fatty acids (HODE) or the esters thereof from a mixture containing linoleic acid or the esters thereof |
| 02/19/2002 | US6348496 15-hydroxyeicosatetraenoic acid analogs with enhanced metabolic stability and methods of their use in treating dry eye disorders |
| 02/19/2002 | US6348164 Process for improving shelf stability of liquid overbased calcium carboxylates, mixed metal stabilizers containing same, and stabilizing halogen-containing polymers therewith |
| 02/19/2002 | US6348135 Process for the purification of (meth) acrylic acid and/or its ester |
| 02/14/2002 | WO2002012222A1 Method for obtaining or recovering sterols and tocopherols |
| 02/14/2002 | WO2002012160A1 Process for the synthesis of fluoroorganic compounds |
| 02/14/2002 | WO2002012158A2 Method for catalytically producing organic substances by partial oxidation |
| 02/14/2002 | WO2002012155A2 Process for the preparation of chiral 1,4-diaryl-2-fluoro-2-butenes |
| 02/14/2002 | WO2002011873A1 Surfactant |
| 02/14/2002 | WO2001019767A3 Method for purifying acid chlorides |
| 02/14/2002 | US20020019567 Forming monosodium tartaric acid salts from racemic mixture of 2,3-dimethylbutyronitrile; acidification |
| 02/14/2002 | US20020019564 Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| 02/14/2002 | US20020019562 Carbonylation process |
| 02/14/2002 | US20020019559 Plastic plasticizer |
| 02/13/2002 | EP1179523A1 Process for producing 2,2'-bis-(hydroxymethyl)alkanal and 2,2'-bis(hydroxymethyl)alkanoic acid |
| 02/13/2002 | EP1179366A2 Production of unsaturated acids or esters thereof and catalysts therefor |
| 02/13/2002 | EP1178952A1 NOVEL INTERLEUKIN-1 AND TUMOR NECROSIS FACTOR-$g(a) MODULATORS, SYNTHESES OF SAID MODULATORS AND METHODS OF USING SAID MODULATORS |
| 02/13/2002 | EP1025073B1 Method of heterogeneous catalyzed vapor-phase oxidation of propane to acrolein and/or acrylic acid |
| 02/13/2002 | EP0979222B1 Process and catalyst for preparing acetic acid by catalytic oxidation of ethane |
| 02/13/2002 | EP0943006B1 A method for producing an extract from ganoderma lucidum containing ganoderic acid |
| 02/13/2002 | CN1335832A Columnar crystals of 6-hydroxy-Naphthoic acid and process for the production thereof |
| 02/13/2002 | CN1335829A New method for making photocurable halofluorinated acrylates |
| 02/13/2002 | CN1335788A Catalyst for producing acetic acid, method for preparing the same and method for producing acetic acid using the same |