| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 12/28/2000 | WO2000078700A2 Method for improving the stability and/or avoiding deactivation of a catalyst when making an acetic acid and/or methyl acetate |
| 12/28/2000 | WO2000078165A1 Metal salts of fatty acids as moisture barrier in battered and breaded foods |
| 12/28/2000 | DE19929346A1 Dust-free, free-flowing calcium formate production, especially for use as feed additive, by agglomerating microcrystalline material in presence of auxiliary |
| 12/28/2000 | DE19929281A1 Verfahren und Katalysator zur Herstellung von C¶2¶-Oxygenaten aus Synthesegas A process and catalyst for the production of oxygenates from synthesis gas C¶2¶- |
| 12/28/2000 | DE19929053A1 Stable, highly active, reusable photocatalyst comprising phthalocyanine or tetraphenyl-porphyrin derivative on ion exchange resin carrier, useful in singlet oxygen oxidations e.g. in waste water treatment |
| 12/28/2000 | DE19928495A1 Use of flavonoids for photostabilizing sorbate-containing compositions |
| 12/28/2000 | DE10024617A1 Production of carboxylic acid and/or aldehydes comprises oxidation in the presence of a catalyst comprising a manganese salt, 1,4,7-tri(1-20C alkyl)-1,4,7-triazacyclononane and co-ligands |
| 12/28/2000 | CA2311974A1 Processes of selectively separating and purifying eicosapentaenoic and docosahexaenoic acids or their esters |
| 12/27/2000 | EP1063566A1 A method for preparing non-photo-sensitive fatty acid silver salt grain |
| 12/27/2000 | EP1063222A1 Process for producing phthalic anhydride |
| 12/27/2000 | EP1062197A1 Rectification of (meth)acrylic acid with the addition of a tenside |
| 12/27/2000 | EP1062196A1 Improved process for producing pure carboxylic acids |
| 12/27/2000 | CN1278239A Method and apparatus for preparing purified terephthalic acid |
| 12/27/2000 | CN1277955A Method for preparing propenoic acid |
| 12/27/2000 | CN1277885A Method for treatment of organic liquid contaminated by iodides |
| 12/27/2000 | CN1059906C Water-soluble phosphine-derivatives |
| 12/27/2000 | CN1059893C Rheic acid extrating method from rhubarb and its purification process |
| 12/27/2000 | CN1059892C Comprehensive utilization of terephthalic acid residual liquid |
| 12/27/2000 | CN1059891C Method of preparing tartaric acid |
| 12/27/2000 | CN1059890C Method for synthesis of alpha-aryl propanoic acid by using oxonation |
| 12/27/2000 | CN1059845C Alkane oxidation catalyst and its prpearing method |
| 12/26/2000 | US6166262 Surfactant manufacture |
| 12/26/2000 | US6166252 Process for preparing dichlorofluoroacetyl halides |
| 12/26/2000 | US6166248 Using an absorbent containing biphenyl, diphenyl ether or dimethyl phthalate; and extracting acrylic acid from acid water |
| 12/26/2000 | US6166247 Method for preparing cyclopropanecarboxylic acids |
| 12/26/2000 | US6166246 4-fluorosalicyclic acid derivative and process for production thereof |
| 12/26/2000 | US6166241 Process for the simultaneous preparation of acrylonitrile and arcylic acid |
| 12/26/2000 | US6166156 Method for making photocurable halofluorinated acrylates |
| 12/26/2000 | US6165672 Reaction of potassium carbonate, tetramethylammonium hydroxide or sodium hydroxide with acetate of maleimidealkyl acetate to produce maleimide based monomers |
| 12/21/2000 | WO2000076991A1 Process for preparing chiral cyclopropane carboxylic acids and acyl guanidines |
| 12/21/2000 | WO2000076968A1 Process for the synthesis of a-nor-seco compounds with sterane skeleton |
| 12/21/2000 | WO2000076951A1 Method for producing 2-halo-6-nitrobenzoic acids |
| 12/21/2000 | WO2000076949A1 Method of making hydrogenated acids |
| 12/21/2000 | WO2000076661A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 12/21/2000 | DE19927408A1 Verfahren zur Herstellung von 2-Halo-6-nitrobenzoesäuren Nitrobenzoic 2-halo-6-process for the preparation of |
| 12/21/2000 | CA2374627A1 Process for preparing chiral cyclopropane carboxylic acids and acyl guanidines |
| 12/21/2000 | CA2374615A1 Method of making hydrogenated acids |
| 12/21/2000 | CA2374224A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 12/20/2000 | EP1061064A1 Process for the production of ethercarboxylic acids with low rest alcohol content |
| 12/20/2000 | EP1061063A1 Method of producing carboxylic acid and alcohol |
| 12/20/2000 | EP1060792A1 Process for preparing a catalyst for use in production of methacrylic acid and process of preparing methacrylic acid |
| 12/20/2000 | EP1060157A1 Method for separating and purifying adipic acid |
| 12/20/2000 | EP1059975A2 Purification of organic acids using anion exchange chromatography |
| 12/20/2000 | EP0900186B1 Process for the manufacture of hydroxycarbonyl compounds |
| 12/20/2000 | CN1277184A Production process of aromatic binary carboxylic acid |
| 12/20/2000 | CN1277183A Process for producing (methyl) propenoic acid |
| 12/20/2000 | CN1059662C New process for producing chloroacetic acid |
| 12/19/2000 | US6162948 Heating a mixture of naphthalenedicarboxylic acid and/or ester, alcohol and water to dissolve in a solution of predetermined alcohol concentration; hydrolysis by lowering the alcohol concentration; precipitates; glycol slurry flow |
| 12/19/2000 | US6162947 Process for the preparation of 4-carboxy-5, 8,11-tris (carboxymethyl)-phenyl-2-oxa-5, 8 11-triazatridecan |
| 12/19/2000 | US6162943 By reacting a keto ester with trifluoromethyltrimethyl silane to form a-trimethylsiloxy-a-trifluoromethyl aryl acetic ester; reacting with alkoxide to form metal salt, and alkylating; reagent for determining optical purity of amines |
| 12/19/2000 | US6162936 Organometallic fluorenyl compounds, preparation, and use |
| 12/19/2000 | US6162836 Process for preparing aqueous dispersion of higher fatty acid zinc salt |
| 12/19/2000 | US6162770 Unsulfurized alkali metal-free, additive for lubricating oils |
| 12/14/2000 | WO2000075097A1 Method of purifying and producing acrylic acid or methacrylic acid |
| 12/14/2000 | DE19934410C1 Separation and purification of aqueous mixtures of acetic acid, formic acid and high boiling fractions uses apparatus with separation and distillation columns containing organic solvent |
| 12/14/2000 | DE19926082A1 Verfahren zur Reinigung und Herstellung von Acrylsäure oder Methacrylsäure Methods for cleaning and preparing acrylic acid or methacrylic acid |
| 12/13/2000 | EP1059281A1 Method of manufacturing (meth)acrylic acid |
| 12/13/2000 | EP1058579A1 Catalyst for the oxidation of ethane to acetic acid |
| 12/13/2000 | CN1276777A Method for producing (meth) acrylic acid |
| 12/13/2000 | CN1276776A Method of recycling catalyst in oxidations of hydrocarbons |
| 12/13/2000 | CN1276365A Method for preparing purified p-phthalic acid |
| 12/13/2000 | CN1276363A Method for suppression of polymerization in vacuum zone of easy-to-polymerize compounds purifying system |
| 12/13/2000 | CN1059434C Process for preparing substd. phenylacetic acid derivs. and intermediates |
| 12/13/2000 | CN1059429C Method for preparing terephthalic acid |
| 12/12/2000 | US6160173 Mixing lactic acid or salt with a substantially immiscible anion exchanger to form a an adduct, effecting chemical condensation between carboxylic group of lactic acid adduct and an akanol or amine to form lactic acid ester or amide |
| 12/12/2000 | US6160172 Preparing (-) hydroxycitric acid liquid concentrate/solid lactone of hyroxycitric acid from garcinia extract, neutralizing free hydroxycitric acid, displacing group 1 metal ions by adding group 11a metal chlorides |
| 12/12/2000 | US6160170 Process for the production of aromatic acids |
| 12/12/2000 | US6160163 Vapor-phase carbonylation of lower alkyl alcohols, polyols alkylalkylene polyethers, and alkylene oxide adducts to esters and optionally, carboxylic acids using a catalyst having a platinum on a solid support and a halide promoter |
| 12/12/2000 | US6160162 Oxidizing propane or propane/propylene mixture and oxygen in presence of an oxidation catalyst comprising mixed oxide of molybdenum, vanadium, gallium, palladium, neobium, and an element from lanthanum, tellurium, germenium, zinc, silicon, |
| 12/12/2000 | US6160159 Oxidizing p-tolualdehyde and mixture of p-tolualdehyde and para-xylene with oxygen to form p-toluic aicd, esterifying with methanol to form methyl toluate, oxidizing to form monomethyl terephthalate, oxidizing and esterifying |
| 12/12/2000 | US6160142 Cleaning aid included in electrographic toner mixtures |
| 12/12/2000 | US6160141 Reacting a hydrocarbylsulfonic ester of methyl lesquerolate with diazabicycloundecene to form high yield of 11-cis, 13-trans eicosadienoic acid |
| 12/12/2000 | US6160134 Process for preparing chiral cyclopropane carboxylic acids and acyl guanidines |
| 12/12/2000 | US6159973 Aromatic amides, their preparation process, the compositions containing them and their use as pesticides |
| 12/12/2000 | US6159896 Iridium catalyst for carbonylation of lower aliphatic alcohols |
| 12/12/2000 | US6159894 Catalyst for dehydrogenation of amino alcohols to amino carboxylic acids or of ethylene glycol (derivatives) to oxycarboxylic acids, method for their production and their use |
| 12/12/2000 | US6159667 Thermographic recording material with improved image tone and/or stability upon thermal development |
| 12/12/2000 | CA2138154C Simultaneous production of dicarboxylic acids and diamines from polyamides |
| 12/12/2000 | CA2138024C Simultaneous production of dicarboxylic acids and diamines by splitting polyamides into their monomeric constituents |
| 12/07/2000 | WO2000073253A1 NOVEL INTERLEUKIN-1 AND TUMOR NECROSIS FACTOR-α MODULATORS, SYNTHESES OF SAID MODULATORS AND METHODS OF USING SAID MODULATORS |
| 12/07/2000 | WO2000072964A1 Catalyst for methacrylic acid production and process for producing methacrylic acid |
| 12/07/2000 | WO2000072963A1 Vanadium/phosphorus mixed oxide catalyst precursor |
| 12/07/2000 | WO2000072962A1 Process for improving activity and selectivity of ammoxidation catalyst |
| 12/06/2000 | EP1057804A2 Process for inhibiting a polymerization in a vacuum section of an easily polymerizable compound purification system |
| 12/06/2000 | EP1056709A1 A process for the preparation of cyclopropane carboxylic acids |
| 12/06/2000 | EP1056708A1 Method for separating maleic anhydride from maleic anhydride-containing mixtures by stripping |
| 12/06/2000 | EP1056707A1 Process for preparing (r)-2-bromo-3-phenyl-propionic acid |
| 12/06/2000 | EP1056706A1 Methods and devices for separating catalyst from oxidation mixtures |
| 12/06/2000 | CN1275973A Lactic acid processing, methods, arrangements and products |
| 12/06/2000 | CN1275972A Method for producing acrylic acid and methacrylic acid |
| 12/06/2000 | CN1275971A Method for selectively producing acetic acid through the catalytic oxidation of ethane |
| 12/06/2000 | CN1275560A Potassium sorbate granule and preparation process thereof |
| 12/06/2000 | CN1059198C Process for manufacturing of stannous caprylate |
| 12/06/2000 | CN1059197C Process for preparation of tetrachlorocarboxylic derivatives |
| 12/06/2000 | CN1059196C Preparation process of zinc acetate |
| 12/06/2000 | CN1059195C Productive process for specific grade zinc stearate |
| 12/06/2000 | CN1059131C Catalyst for producing benzoic anhydride |
| 12/05/2000 | US6156934 Diphosphines |
| 12/05/2000 | US6156928 Method for gas phase production of acetic acid from ethane |
| 12/05/2000 | US6156889 Reagent useful for cleaving a protected functional group |