| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 01/07/2004 | CN1466489A 催化剂体系和羰基化方法 Carbonylation catalyst system and method |
| 01/07/2004 | CN1465560A Process for preparing ultrahigh basicity calcium naphthenate |
| 01/07/2004 | CN1133679C Processes for producing polyester and producing sorbic acid |
| 01/07/2004 | CN1133614C Methodfor producing acrylic acid and acrylic acid esters |
| 01/06/2004 | US6673964 Process for producing a calcium carboxylate |
| 01/06/2004 | US6673963 Process for preparing sorbic acid by thermal cleavage |
| 01/06/2004 | US6673962 Dry compressing powder; pulverizing; classification; suppressed dusting and caking tendency |
| 01/06/2004 | US6673879 Destroying peroxy compounds that might be present |
| 01/06/2004 | US6673837 Acetyl L-carnitine salt with a dicarboxylic organic acid and process for preparing same |
| 01/06/2004 | US6673733 Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid |
| 01/04/2004 | CN1134395C Recovery of 2,6-naphthalene dicarboxylic acid from polyesters |
| 01/02/2004 | EP1375534A1 Solid-phase-supported transition metal catalysts |
| 01/02/2004 | EP1375469A1 A process for preparing acylfluorides |
| 01/02/2004 | EP1375468A2 Method for removing impurities from oxidation products |
| 01/02/2004 | EP1375467A1 2-Bromomethyl-6-methyl-benzoic acid and a process for the preparation thereof |
| 01/02/2004 | EP1375466A1 Multi metal oxide catalyst, process for preparing and use for the preparation of acrylic acid |
| 01/02/2004 | EP1374992A1 Supported mixed metal oxide catalyst obtained by physical or chemical vapour deposition |
| 01/02/2004 | EP1374983A1 Reaction system of organic substance employing supercritical fluid or sub-critical fluid |
| 01/02/2004 | EP1373277A1 Organometallic building materials and method for producing the same |
| 01/02/2004 | EP1373182A1 Conjugated unsaturated glyceride mixtures and a method for producing the same |
| 01/02/2004 | EP1372808A1 Method for eliminating oxygenated organic molecules that are present in an organic effluent using alumina agglomerates |
| 01/02/2004 | EP1252129B1 Purification method for (meth)acrylic acid |
| 01/02/2004 | EP1140799B1 Novel propargylether derivatives |
| 01/02/2004 | EP1124782B1 Method for racemate splitting of 2-hydroxypropionic acids |
| 01/01/2004 | US20040002618 Reacting calcium oxide or hydroxide with nitrile in aqueous solution |
| 01/01/2004 | US20040002610 Salt forming uisng 6.8-dihalooctanoic acid with methylbenzylamine; using phase transfer catalyst |
| 01/01/2004 | US20040002597 Catalytic process for the modification of carbohydrates, alcohols, aldehydes or polyhydroxy compounds |
| 12/31/2003 | WO2004000850A1 Dicopper(i)oxalate complexes for use as precursor substances in metallic copper deposition |
| 12/31/2003 | WO2004000779A1 Process for producing phenyloxocarboxylic ester derivative |
| 12/31/2003 | WO2004000763A2 Method for preparing an unsaturated carboxylic acid |
| 12/31/2003 | WO2004000455A1 Titaniun-vanadium-tin comprising catalyst and process for the preparation of phthalic anhydride |
| 12/31/2003 | CN1463958A Process for continuously providing crystal lattice oxygen |
| 12/31/2003 | CA2490773A1 Dicopper(i)oxalate complexes as precursor substances for the deposition of metallic copper |
| 12/31/2003 | CA2489556A1 Titaniun-vanadium-tin comprising catalyst and process for the preparation of phthalic anhydride |
| 12/30/2003 | US6670505 Process for the recovery of organic acids from aqueous solutions |
| 12/30/2003 | US6670504 Method and producing acetic acid in a reactor cascade |
| 12/30/2003 | US6670503 By reacting with anhydrous metal salts of a weaker acid than terephthalic acid, until a water soluble compound is obtained, followed by dissolution in water and acidification; nondiscolored product, efficient use of reagents, energy |
| 12/30/2003 | US6670502 Process for the production of aromatic acids |
| 12/30/2003 | US6670501 Condensation reaction of propionic acid or ester with formaldehyde; crystallisation |
| 12/30/2003 | US6670494 Reacting organic acid with metal compound in nonaqueous solvent; simple; low energy; no waste products; environ-mentally safe |
| 12/30/2003 | US6670487 Method for removing impurities from oxidation products |
| 12/30/2003 | CA2126502C Catalyst for reduction of carbon dioxide |
| 12/30/2003 | CA2117569C Process for the production of acetic acid |
| 12/30/2003 | CA2029083C Process for preparing tetraalkyl butanetetracarboxylates |
| 12/25/2003 | WO2003106396A1 Process for the production of acetic acid |
| 12/25/2003 | US20030236436 Process for preparing acylfluorides |
| 12/25/2003 | US20030236432 Catalysts comprising group VI compounds, used for oxidation of butane to maleic anhydride |
| 12/25/2003 | US20030236431 2-bromomethyl-6-methyl-benzoic acid and a process for the preparation thereof |
| 12/25/2003 | US20030236268 Process for the preparation of piperidinylaminomethyl trifluoromethyl cyclic ether compounds |
| 12/25/2003 | US20030236163 Providing a catalyst support; vapor depositing layers comprising molybdenum, vanadium and tellurium and layer comprising at least one other element; calcining |
| 12/24/2003 | WO2003106397A1 A process for preparing long chain saturated or unsaturated oxygenated compounds |
| 12/24/2003 | WO2003106353A1 Method of purifying fischer-tropsch derived water |
| 12/24/2003 | WO2003105822A1 Long chain unsaturated oxygenated compounds and their use in the therapeutical, cosmetic and nutraceutical field |
| 12/24/2003 | WO2003084916A3 Compounds that modulate ppar activity and methods for their preparation |
| 12/24/2003 | WO2003082795A3 METHODS OF MANUFACTURING DERIVATIVES OF β-HYDROXYCARBOXYLIC ACIDS |
| 12/24/2003 | WO2003059510A3 Manganese(iv) complex salts and their use as oxidation catalysts |
| 12/24/2003 | WO2003042135A3 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions |
| 12/24/2003 | CN1463266A Binaphthol derivative and method for producing same |
| 12/24/2003 | CN1463265A Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing same |
| 12/24/2003 | CN1463263A Method to inhibit ethylene responses in plants |
| 12/24/2003 | CN1462736A Method for refining naphthenic acid |
| 12/23/2003 | US6667420 Salt formation of sodium methoxide and valproic acid, purification by azeotropical distillation, filtration; anticonvulsant drugs, in the treatment of epilepsy attacks and convulsive seizures |
| 12/23/2003 | US6667419 High efficiency countercurrent collection on packing without polymerizing |
| 12/23/2003 | US6667418 Reducing acetaldehyde waste through oxidation |
| 12/23/2003 | US6667417 Neutralization of lactic acid produced by the fermentation of carbohydrates; recting with an alkali metal salt to form a water-soluble lactate; separation; hydrolysis; reuse |
| 12/23/2003 | US6667332 Benzisoxazolyl-pyrazole derivatives formed by salt formation with maleic acid and hydrochloric acid and cyclization with acetohydroxamic acid |
| 12/23/2003 | US6666956 Separation of mixtures of (meth)acrylic acid or ethyl esters in stills having reboilers in layouts allowing for efficient heat exchange and polymerization inhibition |
| 12/23/2003 | CA2283206C Process for producing maleic acid |
| 12/23/2003 | CA2141944C Polymeric carbonylation catalyst system |
| 12/18/2003 | WO2003104180A1 Process for the preparation of 4-(4-fluorobenzoyl) butyric acid |
| 12/18/2003 | WO2003104179A1 Process for the production of acetic acid |
| 12/18/2003 | WO2003103650A1 Active ingredient salts and esters of 1-dimethylamino-3-(3-methoxy-phenyl)-2-methyl-pentan-3-ol and 3-(3-dimethylamino-1-ethyl-1-hydroxy-2-methyl-propyl)-phenol |
| 12/18/2003 | WO2003074474A3 Multiple-component solid phases containing at least one active pharmaceutical ingredient |
| 12/18/2003 | WO2003059856A3 Method for the oxidation of unsaturated hydrocarbons |
| 12/18/2003 | WO2003055599A8 Catalyst supported on carbon having macroporosity for purification of aromatic acids |
| 12/18/2003 | WO2003053904A3 Purification of a crude acid mixture |
| 12/18/2003 | US20030233014 Purification of 12-molybdophosphoric acid, 12-tungstophosphoric acid, 12-tungstosilicic acid, by dissolving in solvent, recrystallization, heating; catalyzing the oxidation of methacrolein |
| 12/18/2003 | US20030233012 A porous surface area silica particles comprising an oxides of alkali metal, and other elements selected from magnesium, aluminium, zirconium, hafnium; catalyst selectivity for forming methacrylic acid or methyl methacrylate |
| 12/18/2003 | US20030232989 Process for the preparation of specific aromatic aldehydes |
| 12/18/2003 | US20030232886 For resolving racemic mixtures; chemical intermediates, drugs |
| 12/17/2003 | EP1371655A1 Novel diphosphine compound, production intermediate thereof, transition metal complex containing the compound as ligand and asymmetric hydrogenation catalyst containing the complex |
| 12/17/2003 | EP1371626A2 Process for the preparation of 3-Alkoxy-2-methylbenzoic acids |
| 12/17/2003 | EP1371625A1 Process to prepare 3-acyloxy-2-methyl-benzoic acid |
| 12/17/2003 | EP1370510A2 Hiv integrase inhibitors |
| 12/17/2003 | EP1370509A2 Method for the production of glyceric acid |
| 12/17/2003 | EP1370349A1 Free-flowing products comprising potassium formate |
| 12/17/2003 | EP1370335A1 Azeotropic distillation process for producing organic acids or organic acid amides |
| 12/17/2003 | CN1462267A Method for producing ketocarbodylic acid derivatives |
| 12/17/2003 | CN1462211A Method for producing multiple-phase multi-metal oxide materials |
| 12/17/2003 | CN1462210A Method for producing multi-metal oxide catalyst, method for producing unsaturated aldehydes and/or carhoxylicacids and band calcination device |
| 12/17/2003 | CN1131197C Process for preparing 2-alkyl-3-hydroxy-benzoic acid |
| 12/17/2003 | CN1131196C Process for rapidly racemizing naproxen methylester by microwave method |
| 12/17/2003 | CN1131195C Process for synthesizing tartaric acid from cis-butene diacid |
| 12/17/2003 | CN1131194C Process for preparing tartaric acid |
| 12/16/2003 | US6664419 Method and device for purifying substances by means of crystallization |
| 12/16/2003 | US6664418 N-oxyl compounds dissolved in solution with (meth)acrylic acid or one of its esters to prevent polymerization during storage |
| 12/16/2003 | US6664417 Contacting a molar excess of an aqueous solution of formaldehyde, gaseous formaldehyde or trioxane in a solvent with succinic anhydride, or mono or di-lower alkyl ester of of succinic acid in presence of metal oxide catalyst |
| 12/16/2003 | US6664416 Process for producing (meth)acrylic acid |
| 12/16/2003 | US6664206 Treating the catalyst containing P and Mo and exhibiting reduced activity, with a gas containing a nitrogen- containing heterocyclic compound. |
| 12/16/2003 | CA2088431C Process for producing 4-bromomethylbiphenyl compounds |