| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 01/13/1999 | EP0765350B1 Derivatives of polyamines with one primary amine group and secondary or tertiary amines groups |
| 01/13/1999 | EP0651674B1 Catalysts and their use in oxidation of satured hydrocarbons |
| 01/13/1999 | CN1204639A Method for recovering acrylic acid |
| 01/13/1999 | CN1204638A Preparation of docosahexenoic acid and esterification technology |
| 01/12/1999 | US5859298 Process for the preparation of 2-halogeno-4,5-difluorobenzoyl fluorides |
| 01/12/1999 | US5859296 Process for isolating hydroxypivalic acid from aqueous solution |
| 01/12/1999 | US5859294 Process for the production of high-purity naphthalenedicarboxylic acid |
| 01/12/1999 | US5859292 Preparation of high purity sodium (S)-2(6-methoxy-2-naphthyl)propionate |
| 01/12/1999 | US5859269 Process for the continuous production of monocarboxylic acids |
| 01/12/1999 | US5859267 Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith |
| 01/12/1999 | US5859263 Method and apparatus for production of levulinic acid via reactive extrusion |
| 01/07/1999 | WO1999000535A1 Method for preparing 2-aryl or 2-heterocyclyl chiral propionic acids and their esters |
| 01/07/1999 | WO1999000512A2 Method for conversion of biomass to chemicals and fuels |
| 01/07/1999 | WO1999000378A1 PROCESSES FOR PREPARING 2-(φ-ALKOXYCARBONYLALKANOYL)-4-BUTANOLIDES, φ-HYDROXY-(φ-3)-KETO FATTY ESTERS, AND DERIVATIVES THEREOF |
| 01/07/1999 | WO1999000352A1 Recovery of fermentation salts from dilute aqueous solutions |
| 01/07/1999 | WO1999000351A1 Process for the recovery of naphthalenedicarboxylic acid from poly(alkylene naphthalenedicarboxylate) |
| 01/07/1999 | WO1999000350A1 Process for producing free acids from ammonium carboxylates |
| 01/07/1999 | WO1999000167A1 Crystallization in a plate heat exchanger |
| 01/07/1999 | EP0889022A1 Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid |
| 01/07/1999 | EP0889021A1 Process for preparing aromatic dicarboxylic acids |
| 01/07/1999 | EP0889020A1 A process for the production of benzene derivatives |
| 01/07/1999 | EP0888364A1 Process to prepare a multidentate phosphite compound |
| 01/07/1999 | EP0888277A1 Production of acetic acid from methane |
| 01/07/1999 | DE19727276A1 Removal of nickel from fatty acid residues e.g. from catalysed hydrogenation of fats |
| 01/07/1999 | DE19727235A1 Shell catalyst for maleic anhydride production by gas phase oxidation |
| 01/07/1999 | DE19724736C1 Production of compounds containing carboxylic acid |
| 01/07/1999 | CA2295082A1 Method for conversion of biomass to chemicals and fuels |
| 01/06/1999 | CN1204314A Process for preparing optically active carboxylic acids |
| 01/06/1999 | CN1041515C Method and product for recovery terephthalates and glycol from polyethylene terephthalates |
| 01/06/1999 | CN1041513C Composition of vinyl aromatic monomers and its inhibiting polymerization process |
| 01/05/1999 | US5856569 Alkyl alkanoylacetate is reacted with an n-propyl halide in a biphasic system in the presence of a base and a phase transfer catalyst. |
| 01/05/1999 | US5856568 Process for inhibiting polymerization of a vinyl compound |
| 01/05/1999 | US5856562 Method for inhibiting polymerization of (meth) acrylic acid or esters thereof |
| 01/05/1999 | US5856539 Using zeolite catalyst |
| 01/05/1999 | US5856523 Purifying cyclic esters by aqueous solvent extraction and further purification |
| 01/05/1999 | US5856259 Composite catalyst on support |
| 01/05/1999 | US5855917 Method for controlling body fat and/or body weight in animals and pharmaceutical compositions for use therein comprising 20-carbon conjugated unsaturated fatty acids |
| 01/05/1999 | US5855743 Process of isolation of (Meth) acrylic acid |
| 12/30/1998 | WO1998058896A1 Process for the manufacture of carboxylic acids |
| 12/30/1998 | EP0887334A1 Method for recovering acrylic acid |
| 12/30/1998 | EP0763007B1 Process for the removal of iodine from acetyl compounds |
| 12/30/1998 | EP0668261B1 Process for producing polyfluoropropionyl halide |
| 12/30/1998 | EP0655951B1 Static condition process for the preparation of phosphorus/vanadium oxidation catalyst |
| 12/30/1998 | CN1203581A Process for carbonylation of acetylenically unsaturated compounds |
| 12/30/1998 | CN1203580A Process employing indicator ligands |
| 12/30/1998 | CN1203578A Process using multistage reactors |
| 12/30/1998 | CN1203577A Improved metal-ligand complex catalyzed processes |
| 12/30/1998 | CN1203576A Improved metal-ligand complex catalyzed processes |
| 12/30/1998 | CN1203535A Thermally-managed separation and dewatering processes for recovering acid products |
| 12/30/1998 | CN1203220A Process for continuously preparing aryl alkali salt acetate aqueous solution |
| 12/30/1998 | CN1203122A Catalyst system for preparing acetate and acetic anhydride by carbonylation and its preparing process |
| 12/30/1998 | CN1041409C Process for preparation of hexandioic acid by hydrogen added carboxyltion of pentenylic acid |
| 12/30/1998 | CA2294393A1 Process for the manufacture of carboxylic acids |
| 12/29/1998 | US5854172 Preparation of vanadium antimonate based catalysts using SnO2 ·xH2 O |
| 12/24/1998 | DE19740954C1 Light-coloured ether carboxylic acid or salt production |
| 12/24/1998 | DE19725588A1 Bimetallic cluster used as catalyst |
| 12/24/1998 | DE19725533A1 Verfahren zur Herstellung von 2-Cyclododecyl-1-propanol A process for preparing 2-cyclododecyl-1-propanol |
| 12/23/1998 | WO1998057918A1 Process for the production of carboxylic acid |
| 12/23/1998 | WO1998057917A1 METHOD FOR PRODUCING MEDICAMENTS CONTAINING HMG-CoA-REDUCTASE INHIBITORS |
| 12/23/1998 | WO1998057914A1 Method for producing 2-cyclododecyl-1-propanol |
| 12/23/1998 | EP0885872A1 Continuous process for the preparation of aqueous solutions of alkaline salts of arylcetic acids |
| 12/23/1998 | EP0885871A1 Method and apparatus for direct oxygen injection with a reactant stream into a fluidized bed reactor |
| 12/23/1998 | EP0885870A1 Carbonylation process |
| 12/23/1998 | EP0885184A1 Perfluoro(alkoxycycloalkane)carbonyl fluoride compositions and their use |
| 12/23/1998 | CN1202479A Process for preparing alkaline alkyl sodium salicylate |
| 12/23/1998 | CN1202478A Combined producing process for fumaric acid and malic acid |
| 12/23/1998 | CN1202477A Carbonylation process |
| 12/23/1998 | CN1202384A Recovering method for sublimate |
| 12/23/1998 | CN1041311C Method for preparing benzopyran and related LTB4 antagonists |
| 12/23/1998 | CN1041304C Method for carbonylation of allylic butenol and ester of same |
| 12/23/1998 | CN1041301C Carbonylation of olefins |
| 12/23/1998 | CA2294724A1 Method for producing medicaments containing hmg-coa-reductase inhibitors |
| 12/23/1998 | CA2290780A1 Method for producing 2-cyclododecyl-1-propanol |
| 12/22/1998 | USRE36008 Process for the production of terephthalic acid |
| 12/22/1998 | US5852212 Process for preparation of optically active α-bromo and α-chlorocarboxylic compounds |
| 12/22/1998 | US5852211 Process for the conversion of the sodium salt of 2-keto-L-gulonic acid to the free acid |
| 12/22/1998 | US5852209 Process for optically resolving 2-(3-benzoylphenyl) propionic acid |
| 12/22/1998 | US5852148 Perfluoroalkyl halides and derivatives |
| 12/22/1998 | CA2035323C Oxidation of tertiary-alkyl substituted aromatics |
| 12/19/1998 | CA2240970A1 Method and apparatus for direct oxygen injection with a reactant stream into a fluidized bed reactor |
| 12/17/1998 | WO1998056746A1 Polymerization inhibition of acrylates using blends of nitroxides |
| 12/17/1998 | DE19725391A1 Verfahren zur Herstellung von Arzneimittel, enthaltend HMG-CoA-Reduktase-Inhibitoren A process for the production of medicaments comprising HMG-CoA reductase inhibitors |
| 12/16/1998 | EP0884300A1 Process for preparing free alpha-hydroxy acids from ammonium salts thereof |
| 12/16/1998 | EP0884299A1 Process for the synthesis of 3,3-dimethyl-butyric acid |
| 12/16/1998 | EP0883615A1 Additives usable in preparation of alkenyl succinic anhydride |
| 12/16/1998 | EP0883614A1 Additives usable in preparation of alkenyl succinic anhydride |
| 12/16/1998 | EP0883591A1 Process for preparing 1,6 hexane diol and caprolacton |
| 12/16/1998 | EP0593646B1 High productivity process for the production of maleic anhydride |
| 12/16/1998 | CN1202147A Process for dicarboxylating dihydric phenols |
| 12/16/1998 | CN1201779A Preparation of 2,3,4,5-tetrafluorobenzoic acid |
| 12/16/1998 | CA2238398A1 Continuous production of aqueous solutions of alkaline salts of arylacetic acids |
| 12/15/1998 | US5849949 Process for preparing alkyl- and arylmalonic acids |
| 12/15/1998 | US5849935 Method for the development of δ-lactones and hydroxy acids from unsaturated fatty acids and their glycerides |
| 12/15/1998 | US5849934 Method for preparing aromatic compounds |
| 12/15/1998 | US5849851 Romp of functionalized cyclic olefins using ruthenium and osmium carbene complexes |
| 12/10/1998 | WO1998055531A2 Process for the preparation of copolyesters |
| 12/10/1998 | WO1998055442A1 Method for purifying lactic acid |
| 12/10/1998 | WO1998055441A1 Process for production of aromatic tricarboxylic acids |
| 12/10/1998 | WO1998055228A1 Method for regenerating a zeolitic catalyst |
| 12/10/1998 | WO1998055226A1 Process for producing a vanadium phosphorus oxide catalyst |