Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
09/2004
09/08/2004EP1453583A2 Extraction and winterization of lipids from oilseed and microbial sources
09/08/2004EP1296922A4 Method for manufacturing calcium salts of highly unsaturated fatty acids
09/08/2004EP1224029A4 Recovery process for oxidation catalyst in the manufacture of aromatic carboxylic acids
09/08/2004EP1095929B1 Crystal of 2-hydroxynaphthalene-3-carboxylic acid and process for the preparation thereof
09/08/2004CN1527826A Method for the production of phthalic anhydride to a specification
09/08/2004CN1527809A Process for the preparation of 7-substituted 3-alkyl-3H-isobenzofuran-1-one derivatives
09/08/2004CN1165517C Aromatic diamine/aromatic dicarboxylate and method for preparing same
09/08/2004CN1165510C Acrylic acid producing process
09/07/2004US6787671 Catalytic osmium-assisted oxidative cleavage of olefins
09/07/2004US6787669 Phase separating reaction product of cyclohexane direct oxidation; distilling lower phase and removing catalyst from collected bottoms; crystallizing from water
09/07/2004US6787562 Substituted aryl and heteroaryl compounds as E-type prostaglandin antagonists
09/07/2004US6787001 Method for distilling (meth) acrylic acid solution
09/02/2004WO2004074233A1 Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil
09/02/2004WO2004074231A1 Process for producing aromatic carboxylic acid
09/02/2004WO2004073857A1 Catalyst for methacrylic acid production and process for producing the same
09/02/2004WO2004073694A1 Method to treat chronic heart failure and/or elevated cholesterol levels
09/02/2004WO2004033430B1 Process for production of fluoroalkoxy-substituted benzamides and their intermediates
09/02/2004WO2004031141A3 Process for preparing fluorocarboxylic acids
09/02/2004US20040171894 Process for the catalytic oxidation of hydrocarbons
09/02/2004US20040171887 Method for producing methacrolein from isobutane
09/02/2004US20040171878 Process for the removal of undesired flavour and odour components from potassium lactate
09/02/2004US20040171874 vapor phase catalytic oxidation of isobutylene, propylene
09/02/2004US20040171871 Process for producing aromatic carboxylic acids
09/02/2004US20040171865 Supplying drug to animal by mouth; alkylation of a phenoxy compound with dicarboxylic acid in solvent; decarboxylation, hydrolysis
09/02/2004US20040171862 Method for producing optically active cyanohydrins and their corresponding acids
09/02/2004CA2516450A1 Method to treat chronic heart failure and/or elevated cholesterol levels
09/02/2004CA2514700A1 Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil
09/01/2004EP1452518A1 Process for producing (meth)acrylic acid compound
09/01/2004EP1452517A1 Process for producing aromatic carboxylic acids
09/01/2004EP1452227A1 Composite-oxide catalyst and process for production of acrylic acid using said catalyst
09/01/2004EP1451137A1 Neutral carbonated alkaline earth metal carboxylates
09/01/2004EP1451136A2 Process for preparing monochloroacetic acid
09/01/2004EP1451135A1 Oxidation process in fluidised bed reactor
09/01/2004EP1451133A2 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions
09/01/2004EP1370349B1 Free-flowing products comprising potassium formate
09/01/2004EP1156996B1 Process for the shaping of alkaline (earth) metal benzoate particles
09/01/2004CN1525952A Carbonylation process
09/01/2004CN1525887A Skeletal isomerization of fatty acids
09/01/2004CN1525884A Tin promoted iridium catalyst for carbonylation of lower alkyl alcohols
09/01/2004CN1524842A Method for oxidation preparation of substituted benzoic acid from substituted toluene in non-acid solvent
09/01/2004CN1524841A Method for reclaiming calcium oxalate from sewage comprising oxalic acid
09/01/2004CN1524840A Refining method of rough acetic anhydride and acetic anhydride
09/01/2004CN1524615A Composite-oxide catalyst and process for production of acrylic acid using said catalyst
09/01/2004CN1164646C Refining process for acetic anhydride, crude acetic anhydride and process for producing polyoxy-1,4-butanediol using acetic anhydride
09/01/2004CN1164557C Preparing process of dibromochrysanthemic acid
09/01/2004CN1164556C Prepartion process of magnesium naphthenate with superhigh base number
09/01/2004CN1164555C Process for preparing calcium magnesium acetate by vacuum distillation method
08/2004
08/31/2004US6784313 Carbonylating an alcohol or an ether or an ester of the alcohol with co in the presence of a rhodium catalyst and a carboxyalkylamine
08/31/2004US6784134 Ring-shaped bodies composed of a catalyst composition containing at least molybdenum and bismuth as the active ingredients and inorganic fibers.
08/31/2004US6783659 Deethanizing cracked gas stream to produce a c2-stream and a c3+ stream; hydrogenating acetylene to produce ethylene; hydrogenating methylacetylene and propadiene to propylene and propane
08/31/2004CA2158444C Process for the carbonylation of acetylenically unsaturated compounds
08/26/2004WO2004072012A1 Preparation of substituted phthalic anhydride, especially 4-chlorophtalic anhydride
08/26/2004WO2004072011A1 Process for preparing fatty acid zinc salts
08/26/2004WO2004013094A3 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
08/26/2004US20040167350 Bichlorinated compounds formed under with carboxy groupand elimation of water
08/25/2004EP1449822A1 Method for producing trans-1,4-cyclohexane dicarboxylic acid
08/25/2004EP1449821A1 OPTICALLY ACTIVE MANDELIC ACID AND ITS DERIVATIVE, AND METHOD FOR CRYSTALLIZATION THEREOF
08/25/2004EP1449579A1 Composite oxide catalyst and method for preparation thereof
08/25/2004EP1448626A1 Process for the manufacture of polycarboxylic acids using phosphorous containing reducing agents
08/25/2004EP1448509A2 Method of preparing phenoxy alkanoic, alkenoic, and alkynoic acids and salts thereof via a dicarboxylate intermediate
08/25/2004EP1448506A1 Method for producing (meth)acrylic acid esters of polyhydric alcohols
08/25/2004EP1448505A1 Method for production of formic acid formates
08/25/2004EP1448283A1 Method for performing the purifying separation of crystals out of their suspension in a mother liquor
08/25/2004EP1448282A1 Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt
08/25/2004EP1353750B1 Stable free nitroxyl radicals as oxidation catalysts and process for oxidation
08/25/2004EP1220822B1 Process for the simultaneous production of maleic anhydride and its hydrogenated derivatives
08/25/2004CN1524069A Addition of mineral acids or salts thereof to a TMA production process
08/25/2004CN1523983A Method for the production of solid formulations of sodium 3-hydroxy-3-methylbutyrate
08/25/2004CN1523003A Novel 2-(alpha-hydroxyl amyl) and its preparing method and use
08/25/2004CN1523001A Acetic acid purification process
08/25/2004CN1523000A Method for recovering organic acid and inorganic salt from oxidized and saponified cyclohexane waste lye
08/25/2004CN1522996A Process for preparing benzaldehyde, phenylcarbinol and benzoic acid
08/25/2004CN1163693C Effluent gas treatment
08/25/2004CN1163465C Method for removing and treating by-product formed during process of preparing (methyl) acrylic acid
08/24/2004US6781017 Method for the production of acrolein or acrylic acid or the mixture thereof from propane
08/24/2004US6781014 Making synthesis gas from which streams of carbon monoxide and methanol can be obtained for the manufacture of acetic acid
08/24/2004US6781013 Process for producing acrolein and acrylic acid
08/24/2004US6781012 Process for the preparation of optically and chemically highly pure (R)- or (S)-α-hydroxycarboxylic acids
08/24/2004US6781008 Mixed metal oxide; production of unsaturated carboxylic acids or unsaturated nitriles from alkanes or alkenes
08/24/2004US6781004 Process for the preparation of cis-6-hexadecenoic acid
08/24/2004US6780816 Modified carrier, complex oxide catalyst and process for preparation of acrylic acid
08/19/2004WO2004069780A1 Process for production of adipic acids having side chains
08/19/2004WO2004069774A2 Synthesis of 13c-labelled estrogen analogues
08/19/2004WO2004069772A1 Process for production of iodine compounds and process for production of high-purity 5-iodo-2-methylbenzoic acid
08/19/2004US20040162453 vapor phase oxidative dehydrogenation of C2-C5 lower alkanes in the presence of molecular oxygen to produce corresponding olefins then to the corresponding unsaturated aldehydes and/or unsaturated carboxylic acids
08/19/2004US20040162440 carbonylation of 3-pentenenitrile to 5-cyanovaleric acid or its corresponding esters
08/19/2004US20040162437 for example obtaining polyunsaturated fatty acids or derivatives thereof from mixtures with saturated and/or less highly unsaturated by selective complexation at a cation exchanger which is partially or completely loaded with silver ions
08/19/2004US20040162372 Heat resistance, stabilizer
08/19/2004US20040162217 Vanadium/phosphorus mixed oxide catalyst
08/19/2004US20040161831 Microorganism having an ability of producing docosahexaenoic acid and use thereof
08/18/2004EP1153008B1 Method for carbonylation of lower alkyl alcohols
08/18/2004EP1089816B1 Catalyst systems for the one step gas phase production of acetic acid from ethylene
08/18/2004EP1066241B1 Method for producing (meth)acrylic acid and (meth)acrylic acid esters
08/18/2004CN1522237A Method for producing methacrolein from isobutane
08/18/2004CN1522236A Method for producing methacrolein from isobutane
08/18/2004CN1522176A Method for preparing ruthenium-carrying alumina and method for oxidizing alcohol
08/18/2004CN1520927A Precursor of V-P-Si composite oxides catalyst for preparing maleic anhydride by oxidizing butane
08/18/2004CN1520920A Technique for recovering useful constituent from the tail gas arising from acetic acid synthesis process from carbonyl
08/18/2004CN1162389C Prepn of 2-(3-benzoylphenyl) propionic acid enantiomer
08/18/2004CN1162382C Process for mfg. acrolein and propenoic acid