| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 12/01/2004 | CN1177841C Treatment of crude phthalic anhydride |
| 12/01/2004 | CN1177792C Catalytic gas phase oxidation of propene into acrylic acid |
| 12/01/2004 | CN1177791C Process for the manufacture of alpha, alpha-branched carboxylic acids |
| 12/01/2004 | CN1177763C Multi-metal oxide |
| 11/30/2004 | US6825381 Method and apparatus for absorbing (meth) acrylic acid |
| 11/30/2004 | US6825380 Promoted multi-metal oxide catalyst |
| 11/30/2004 | US6825379 Method for recovering and producing C4-C6 dicarboxylate from alkaline waste solution generated in caprolactam preparation process |
| 11/30/2004 | US6825378 Process for the synthesis of enantiomerically pure cyclohexylphenyl glycolic acid |
| 11/30/2004 | US6825368 Solid-liquid separation; adding polyglycerol ester of fatty acid to fatty acid mixture; cooling to deposit crystals of saturated fatty acid; distillation of unsaturated fatty acids |
| 11/25/2004 | WO2004101719A2 Manufacture of conjugated linoleic salts and acids |
| 11/25/2004 | WO2004101488A1 Carbonylation process using metal-tridentate ligand catalysts |
| 11/25/2004 | WO2004101487A1 Carbonylation process using metal-polydentate ligand catalysts |
| 11/25/2004 | WO2004101486A1 Method for producing formic acid formiates |
| 11/25/2004 | US20040236149 Microbial process for the preparation of acetic acid, as well as solvent for its extraction from the fermentation broth |
| 11/25/2004 | US20040236148 Ferulic acid dimers and their pharmaceutically acceptable salts, their preparation and use thereof for treating dementia |
| 11/25/2004 | US20040236128 Method for preparing pure epa and pure dha |
| 11/25/2004 | US20040236127 Hydrogenation using transition metal hydrogenation catalyst |
| 11/25/2004 | US20040236049 Crude acrylic acid isolated from reaction gases from the catalytic gas-phase oxidation of propane, propylene and/or acrolein is treated with an aldehyde scavenger; pure acrylic acid is separated by distillation and, after optional neutralization, is subjected to free-radical homo- or copolymerization |
| 11/25/2004 | US20040235936 Analgesics; anesthetics; antiinflammatory agents; central nervous system duisorders; strokes; antiarthritic agents; inflammatory bowel disorders |
| 11/25/2004 | US20040234556 Aerosol mixture of drug particles in fluorohydrocarbon propellant |
| 11/25/2004 | US20040234435 Apparatus for and method of producing aromatic carboxylic acids |
| 11/25/2004 | US20040232078 A suspension of tartaric acid containing potassium hydrogen tartrate (KHT) dissolved in water is decanted, microfiltered, the filtrate vacuum cooled to form KHT crystals which are centrifuged, dissolved in water, and ion exchanged to remove potassium; tartaric acid crystals are formed by evaporation |
| 11/25/2004 | US20040231722 Method for preventing clogging of apparatus for handling (meth) acrylic acid and esters thereof |
| 11/25/2004 | CA2526912A1 Method for producing formic acid formiates |
| 11/24/2004 | EP1479438A1 Method for the oxidative dehydrogenation of ethane |
| 11/24/2004 | EP1478640A1 Process for the manufacture of hmg-coa reductase inhibitory mevalonic acid derivatives |
| 11/24/2004 | EP1478622A1 Crystalline anhydrous and monohydrate benzoate salts of (2's,3s)-3-hydroxy-n- 2 n-methyl-n-4-(n-propylamino-carbonyl)phenyl]amino-2-phenyl -ethylpyrrolidine |
| 11/24/2004 | EP1478614A1 Method for producing phthalic anhydride |
| 11/24/2004 | EP1478463A1 Process for the carbonylation of an ethylenically unsaturated compound and catalyst therefore |
| 11/24/2004 | CN1549805A Method of oxidising hydrocarbons to acids |
| 11/24/2004 | CN1548414A Catalyst concentration and proportion controlling method for p-xylene oxidizing reaction |
| 11/24/2004 | CN1176896C Production of o-chloromethyl benzoic acid chlorides |
| 11/24/2004 | CN1176895C Process for preparation of sorbic acid |
| 11/23/2004 | US6822117 Dispersing adipic acid crystals in water/acetic acid mixture; stirring, smoothening; separation |
| 11/23/2004 | US6822114 Alkylating p-halo-o-hydrocarbyloxyphenol with monohaloalkane; carbonylation with carbon monoxide to obtain 3,4-disubstituted benzoyl compound; etherification |
| 11/23/2004 | US6822104 Method for commercial preparation of preferred isomeric forms of ester free conjugated fatty acids with solvents systems containing polyether alcohol solvents |
| 11/18/2004 | WO2004099425A2 Pyruvate producing yeast strain |
| 11/18/2004 | WO2004099227A2 Polyol fatty acid polyesters process and polyurethanes therefrom |
| 11/18/2004 | WO2004099132A2 Process for the preparation of trans-isomers of diphenylazetidinone derivatives |
| 11/18/2004 | WO2004099114A1 Method for selective carbohydrate oxidation using supported gold catalysts |
| 11/18/2004 | WO2004099113A1 Process for converting a hydrocarbon to an oxygenate or a nitrile |
| 11/18/2004 | WO2004067484A3 Bromine free tempo based catalyst system for oxidation of primary and secondary alcohols using naoci as an oxidant. |
| 11/18/2004 | US20040230074 Method for distilling (meth)acrylic acid and/or the ester thereof |
| 11/18/2004 | US20040230073 N-[N-[3-(3-hydroxy-4-methoxyphenyl)-3-methylbutyl]-L- alpha -aspartyl]-L-phenylalanine-1-methyl ester; sweeteners; purity, yield; industrially profitable |
| 11/18/2004 | US20040230070 Catalyst for selective oxidation and amoxidation of alkanes and/or alkenes, particularly in processes for obtaining acrylic acid, acrylonitrile and the derivatives thereof |
| 11/18/2004 | US20040230066 Production method of citalopram, intermediate therefor and production method of the intermediate |
| 11/18/2004 | US20040230060 Process for preparing 1,5-diaryl-3-substituted pyrazoles |
| 11/18/2004 | US20040229953 Process for preparing highly water soluble double salts of hydroxycitric acid particularly alkali and alkaline earth metal double salts |
| 11/18/2004 | US20040229846 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions |
| 11/18/2004 | US20040229750 Heating mixture of vanadium compound and an anhydrous phosphoric acid in an organic alcohol to reflux; recovering catalyst precursor particles from the cooled admixture by filtration, drying and calcining |
| 11/18/2004 | US20040226812 apparatus has strainers installed on upstream side of pump for extracting a liquid of a vacuum distillation column which distills and refines easily polymerizable substance; switching strainers can be performed with no trouble during operation of the column |
| 11/18/2004 | CA2524262A1 Pyruvate producing yeast strain |
| 11/17/2004 | EP1477488A1 Novel optically active compounds, method for kinetic optical resolution of carboxylic acid derivatives and catalysts therefor |
| 11/17/2004 | EP1477470A1 Process for the production of metal salts of radical-polymerizable compounds |
| 11/17/2004 | EP1477468A1 Novel process for producing 1,2-diol |
| 11/17/2004 | EP1476417A1 Processes for the preparation of a carobxylic anhydride and use of the carboxylic anhydride as an acylation agent |
| 11/17/2004 | EP1206435B1 Process for the recovery of organic acids |
| 11/17/2004 | EP1007206B1 Phosphorus/vanadium catalyst preparation |
| 11/17/2004 | EP0876212B1 Molybdenum-modified vanadium-phosphorus oxide catalysts for the production of maleic anhydride |
| 11/17/2004 | CN1547566A Spliting method of (r)-(-)-2-hydroxyl-2-(2-chlorphenyl)acetic acid |
| 11/17/2004 | CN1547564A Method for producing saturated alcohols, ketones, aldehydes and carboxylic acids |
| 11/17/2004 | CN1547561A Method for the production of a purified melt of at least one monomer |
| 11/17/2004 | CN1547554A Method for the preparation of lactic acid and calcium sulphate dihydrate |
| 11/17/2004 | CN1546454A Method for preparing conjugated linoleic acid |
| 11/17/2004 | CN1546453A Method for purifying acrylic acid |
| 11/17/2004 | CN1546452A Environment-friendly method for catalytic oxidation of cyclopentene to glutaric acid |
| 11/17/2004 | CN1176060C Process for preparing sodium phenyl pyruvate by pressure hydrolyzing benzal hydantoin |
| 11/17/2004 | CN1176059C Quantitative separation of esterified and etherified ferulaic acid and cumaric acid in stalk cell walls |
| 11/16/2004 | US6818588 NOx treated mixed metal oxide catalyst |
| 11/16/2004 | US6818423 Process for the preparation of chiral α-hydroxycarboxylic acids |
| 11/16/2004 | US6818190 Apparatus for preparing non-photosensitive fatty acid silver salt grains |
| 11/16/2004 | US6818189 Tubular reactor with gas injector for gas phase catalytic reactions |
| 11/11/2004 | WO2004096747A1 Process for the separation of palladium catalyst from crude reaction mixtures of aryl acetic acids obtained by carbonylation |
| 11/11/2004 | WO2003078310A8 Method for the production of a catalyst containing vanadium, phosphorus, and oxygen |
| 11/11/2004 | US20040225152 Process for producing (meth)acrylic acid |
| 11/11/2004 | US20040225151 Process for producing (meth) acrylic acid |
| 11/11/2004 | US20040225148 liquid phase oxidation using oxidation catalyst; separation |
| 11/11/2004 | US20040225143 alcoholate rearrangement; forming fatty acid; saponification number |
| 11/11/2004 | US20040225142 alcoholate catalytic rearrangement of sunflower, safflower, or corn oil; high purity, saponification number |
| 11/11/2004 | US20040225141 Heating, controlling temperature; isomerization of the corresponding ester; saponification; neutralization |
| 11/11/2004 | US20040222236 Method of supplying ambient gas |
| 11/10/2004 | EP1475365A2 A method for solvent free hydrodebromination in the production of aromatic carboxylic acids |
| 11/10/2004 | EP1475364A1 Method for distilling (meth)acrylic acid and/or the ester thereof |
| 11/10/2004 | EP1475362A1 New method for making photocurable halofluorinated acrylates |
| 11/10/2004 | EP1261657B1 Poly(3-cyclopropyl-3-hydroxypropionate) and processes for its preparation and derivatives thereof |
| 11/10/2004 | CN2654608Y Bubbling tower oxidation reaction device for producing terephthalic acid |
| 11/10/2004 | CN1545495A Process for producing (meth)acrolein or (meth)acrylic acid |
| 11/10/2004 | CN1544409A Ferulic acid and ferulate preparation method |
| 11/10/2004 | CN1174954C Method for purifying carbonyl chloride |
| 11/10/2004 | CN1174953C Process for producing purified lactic acid solution |
| 11/10/2004 | CN1174952C Hydrocarbon, alcohol and/or ketone oxidation method |
| 11/10/2004 | CN1174924C Method for recovering fluorinated emulsifiers |
| 11/10/2004 | CN1174801C Catalyst for vapor-phase catalytic oxidation or vapor-phase catalytic ammoxidation of propane or isobutane |
| 11/09/2004 | US6815559 Process for producing 3,3,3-trifluoro-2-hydroxypropionic acid or its derivative |
| 11/09/2004 | US6815553 Birch bark processing and the isolation of natural products from birch bark |
| 11/09/2004 | US6815551 Processes for concentrating tocopherols and/or sterols |
| 11/04/2004 | WO2004085368A3 Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid |
| 11/04/2004 | US20040220434 Process for converting a hydrocarbon to an oxygenate or a nitrile |
| 11/04/2004 | US20040220427 Starting compound for (meth)acrylic acid production is subjected to an oxidation reaction, light matters are separated from the liquid reaction mixture from the (meth)acrylic acid-yielding reaction to obtain crude (meth)acrylic acid, by-products generated are pyrolyzed to recover (meth)acrylic acid |
| 11/04/2004 | US20040220426 Process for producing (meth) acrylic acids |