| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/21/1997 | EP0774297A1 Multi-metal oxides |
| 05/21/1997 | EP0773948A1 High activity ruthenium or osmium metal carbene complexes for olefin metathesis reactions and synthesis thereof |
| 05/21/1997 | EP0773919A1 Method for preparing 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof |
| 05/21/1997 | EP0773917A1 Method for preparing a meta-dihydroxylated aromatic compound |
| 05/21/1997 | CN1150417A Liquid phthalic anhydride recovery process using rectifying tower |
| 05/21/1997 | CN1150141A Process for synthesizing cyclopropyl carboxylic ester |
| 05/21/1997 | CN1034925C Process for removing acetone from carbonylation processes |
| 05/21/1997 | CN1034924C Purification of acetic acid and/or acetic anhydride using ozone |
| 05/20/1997 | US5631400 Carbonylation process |
| 05/20/1997 | US5631393 Hydroformylation reactions of olefins to form acids |
| 05/20/1997 | US5631387 Process for the preparation and recovery of maleic anhydride |
| 05/20/1997 | US5631353 Alkene adamantane intermediates and the corresponding 1,2-dioxetanes |
| 05/20/1997 | US5631335 Catalytic addition polymerization to form polypropylene |
| 05/20/1997 | US5631298 Growth promotion |
| 05/20/1997 | CA2028831C Process for the fabrication of acryloyl chloride |
| 05/17/1997 | CA2190171A1 Multimetal oxides |
| 05/15/1997 | WO1997017400A1 Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith |
| 05/15/1997 | WO1997017318A1 Method for purifying crude naphthalenedicarboxylic acid |
| 05/15/1997 | WO1997017317A1 4-phenyl-4-oxo-butanoic acid derivatives with kynurenine-3-hydroxylase inhibiting activity |
| 05/15/1997 | WO1997017315A1 Process for dicarboxylating dihydric phenols |
| 05/15/1997 | DE19644144A1 Hydrolysis of cyanides and cyano complexes under pressure without scale or blockages |
| 05/15/1997 | CA2209907A1 Method for purifying crude naphthalenedicarboxylic acid |
| 05/15/1997 | CA2190308A1 Method and apparatus for producing di- and more highly oxidized carboxylic acids |
| 05/14/1997 | EP0773210A1 Process for the preparation of fluorinated aromatic compounds |
| 05/14/1997 | EP0773208A1 Process for producing perfluoropropionyl fluoride |
| 05/14/1997 | EP0772581A1 Method of recycling a catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid |
| 05/14/1997 | EP0772580A1 Benzoyl derivatives and synthesis thereof |
| 05/14/1997 | CN1149574A Method for producing high pureness terephthalic acid |
| 05/14/1997 | CN1149573A Method for producing pure grade propenoic acid |
| 05/14/1997 | CA2190054A1 Process for the preparation of perfluoropropionyl fluoride |
| 05/13/1997 | US5629446 Process for preparing purified 2,6-naphthalenedicarboxylic acid |
| 05/13/1997 | US5629434 Functionalization of polymers based on Koch chemistry and derivatives thereof |
| 05/12/1997 | CA2189945A1 Process for preparing fluorinated aromatics |
| 05/07/1997 | EP0771782A1 Salicylic acid alkylation |
| 05/07/1997 | EP0771781A1 Conversion of alkanes to unsaturated carboxylic acids |
| 05/07/1997 | EP0624151B1 Racemization process |
| 05/07/1997 | EP0623105B1 Preparation of optically active aliphatic carboxylic acids |
| 05/07/1997 | DE19604700C1 Organic acid production process uses Donnan-dialysis anion exchanger-membrane |
| 05/07/1997 | CN1149046A New substituted 2,2-dimethyl-omega-phenoxyalkanoic acids and esters, process for their preparation and pharmaceutical compositions containing them |
| 05/07/1997 | CN1149045A Process for purification of C2 to C4 carboxylic acid and/or anhydride having halide imputies |
| 05/07/1997 | CN1148994A Mass transfer in plate columns and apparatus for this purpose |
| 05/06/1997 | US5627288 Method for producing rosefuran precursor and intermediates therefor |
| 05/06/1997 | US5627247 Organometallic fluorenyl compounds and use thereof in olefin polymerization |
| 05/06/1997 | US5627205 Substituted phenoxyisobutyric acids and esters |
| 05/06/1997 | US5627191 Therapeutic agents |
| 05/06/1997 | US5627125 Process for preparing carboxylic acid salts and methods for making such catalysts and catalysts useful in such process |
| 05/06/1997 | US5627118 Catalysts for olefin polymerization |
| 05/02/1997 | EP0770592A1 Process for producing pure grade acrylic acid |
| 05/02/1997 | EP0770052A1 Process for carbonylating olefins |
| 05/02/1997 | EP0743935A4 Process for making carboxylic acids |
| 05/02/1997 | EP0675869B1 Preparation of polyoxyalkylene-alpha,omega-dicarboxylic acids |
| 05/01/1997 | WO1997015545A1 Method of citric acid purification and concentration |
| 05/01/1997 | WO1997015544A1 Process for improving productivity of a carbonylation catalyst solution by removing corrosion metals |
| 05/01/1997 | CA2187413A1 Conversion of alkanes to unsaturated carboxylic acids |
| 04/30/1997 | CN1148588A Method for recovering residues in benzoyl chloride distillation pot |
| 04/30/1997 | CN1148587A Method for preparing benzoyl chloride |
| 04/30/1997 | CN1148586A Method for separating (methyl) propenoic acid from low-grade aldehydes including mixture by using rectificating method |
| 04/29/1997 | US5625096 Hydroxycarbonylation of butadiene |
| 04/29/1997 | US5625095 Process for producing high purity acetic acid |
| 04/29/1997 | US5625094 Rhodium/iridium catalyzed synthesis of carboxylic acids or esters thereof |
| 04/29/1997 | US5624566 Method and apparatus for recovering carboxylic acids from dilute solutions |
| 04/28/1997 | CA2162547A1 Process for pure grade acrylic acid |
| 04/24/1997 | WO1997014669A1 Process for preparing optically active carboxylic acids |
| 04/24/1997 | WO1997014668A1 Oxidation of aldehydes to carboxylic acids |
| 04/24/1997 | DE19539295A1 Purification of methacrylic or acrylic acid by distillation separation |
| 04/24/1997 | CA2234983A1 Process for preparing optically active carboxylic acids |
| 04/24/1997 | CA2234003A1 Oxidation of aldehydes to carboxylic acids |
| 04/24/1997 | CA2188589A1 Continuous distillative separation of liquid mixtures which contain (meth)acrylic acid as the main component |
| 04/23/1997 | EP0769487A2 Process for preparing carboxyl groups containing alkyl aryl ethers |
| 04/23/1997 | EP0769486A1 Process for the production of acetic acid by the carbonylation of dimethyl ether |
| 04/23/1997 | EP0769000A1 A process (ii) for making potassium formate |
| 04/23/1997 | EP0768999A1 Recovery of carboxylic acid from organic solution that contains an amine and an extraction enhancer |
| 04/23/1997 | EP0768917A1 Process for preparing carboxylic acid salts and catalysts useful in such process |
| 04/23/1997 | EP0665828B1 Method for hydroxycarbonylating pentenoic acids |
| 04/23/1997 | EP0629187B1 Direct-dyeing colouring agents for natural and synthetic fibres |
| 04/23/1997 | EP0628019B1 Polyfluoroalkylation of aromatic compounds |
| 04/23/1997 | EP0623123B1 Benzopyran and related LTB4-antagonists |
| 04/23/1997 | EP0623107B1 Preparation of optically active aliphatic carboxylic acids |
| 04/23/1997 | CN1148378A Catalyst recovery in carbonylation of chlorobutenes to pentenoyl chloride |
| 04/23/1997 | CN1148352A Catalyst and process for producing same |
| 04/23/1997 | CN1148039A Method for carbonylation of butadiene |
| 04/23/1997 | CN1034660C Hydroxycarboxylation of pentenoic acid |
| 04/22/1997 | US5623082 Preparation of acyl chlorides |
| 04/17/1997 | WO1997013569A1 Thermally-managed separation and dewatering processes for recovering acid products |
| 04/17/1997 | DE19610188C1 Economical oxidation of hydrocarbon(s) |
| 04/17/1997 | DE19600620C1 Very pure glycolic acid prodn., for pharmaceuticals and cosmetics mfr. |
| 04/17/1997 | CA2234070A1 Thermally-managed separation and dewatering processes for recovering acid products |
| 04/16/1997 | EP0768296A1 A method for making alpha, beta-unsaturated-beta-trifluoromethyl-carboxylates |
| 04/16/1997 | EP0768295A1 Process for producing acetic acid |
| 04/16/1997 | EP0767774A1 A process for converting aldehydes to acids |
| 04/16/1997 | EP0672030B1 Process for preparing substantially pure enantiomers of phenylpropionic acids |
| 04/16/1997 | EP0664784B1 Enantiomeric resolution |
| 04/16/1997 | EP0662942B1 A process for the preparation of adipic acid and other aliphatic dibasic acids |
| 04/16/1997 | CN1147501A Producing process for rare earth oxide |
| 04/16/1997 | CN1147500A Process for carbonylation of alkyl alcohols |
| 04/15/1997 | US5621140 N-alkyl-d-glucamine resolving agent; purity; single step process |
| 04/15/1997 | US5620567 Using an acid catalyst |
| 04/15/1997 | CA2111650C Method of producing calcium salts from biomass |
| 04/11/1997 | CA2187060A1 Method for making .alpha., .beta.-unsaturated-.beta.-trifluoromethyl-carboxylates and related compounds |
| 04/10/1997 | WO1997012854A1 Process for the preparation of chloromethyl carbonyl chlorides |