| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/18/2005 | CN1616381A Process for preparing Erigeron breviscapus active component |
| 05/18/2005 | CN1202086C Halogenating agent |
| 05/18/2005 | CN1202069C Use of diterpenvid monomer compound in preparing anti-cancer drugs |
| 05/18/2005 | CN1202067C Method for preparing medicinal grade ferric citrate |
| 05/18/2005 | CN1202050C Polymerization inhibiting method for ethenyl chemical compound |
| 05/17/2005 | US6894190 Process for producing optically active 3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid, and salt thereof |
| 05/17/2005 | US6894187 Method for producing a fluorine-containing compound |
| 05/17/2005 | US6894160 Converting sugars such as glucose and fructose into industrial useful products via hydrogenation and reductive amination using platinum catalyst formed from stabilized nanoparticles |
| 05/17/2005 | CA2119609C Process for the recovery of a carbonylation product |
| 05/12/2005 | WO2005042460A1 Production process of optically pure 2- (4-hydroxyphenoxy) - propionic acid compounds |
| 05/12/2005 | WO2005042459A1 Long-life method for heterogeneously-catalysed gas phase partial oxidation of propene into acrylic acid |
| 05/12/2005 | WO2005042158A1 The use of ir, near ir, visible and uv radiation for the preparation of catalysts |
| 05/12/2005 | WO2005026096A3 Process for the production of alpha-alkoxy/hydroxy-beta-(p-hydroxyphenyl) propionic acid derivatives |
| 05/12/2005 | WO2005021470A3 Process for separating and recovering 3-hydroxypropionic acid and acrylic acid |
| 05/12/2005 | WO2004103945A8 A purification process of crude terephthalic acid in a post oxidation zone by the addition of steam |
| 05/12/2005 | WO2004092056A3 Cogeneration of organic compounds with synthesis gas by catalytic partial oxidation |
| 05/12/2005 | WO2004033408A8 A process for the preparation of monochloroacetic acid |
| 05/12/2005 | US20050101803 Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid |
| 05/12/2005 | US20050101799 Purification of compounds {5,2.1.02,6}decane-2 carboxylic acid estersfor perfumes formed by reaction of alkene with carbon monoxide in the presence of acid catalysts |
| 05/12/2005 | US20050101760 reacting polyhydroxypropionate isolated from plant biomass with ammonia to form alkenoic amide (acrylamide, methacrylamide); depolymerization |
| 05/11/2005 | EP1529775A1 Method for preparation of metal organic acid chelates |
| 05/11/2005 | EP1529774A2 Process for the preparation of an organozinc derivative and its use in a zinc-containing composition as nutritional supplement |
| 05/11/2005 | EP1268718B1 Thickener component and lubricating grease containing an aluminium complex |
| 05/11/2005 | EP1208073B1 Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile |
| 05/11/2005 | EP1173401B1 A production method of aromatic carboxylic acids |
| 05/11/2005 | CN1615292A Purification of a crude acid mixture |
| 05/11/2005 | CN1615289A Multipipe reactor, vapor phase catalytic oxidation method using multipipe reactor, and start-up method applied to multipipe reactor |
| 05/11/2005 | CN1201014C Process of producing citric acid and/or citrates |
| 05/11/2005 | CN1200917C Process for preparation of cyclopropyl acethlene derivative |
| 05/11/2005 | CN1200703C Use of pentanoate derivant |
| 05/10/2005 | US6891064 Process for producing fluoroalkylcarboxylic acid |
| 05/10/2005 | US6891063 Salts with pharmaceutically acceptable organic bases, selected from ethylenediamine, ethanolamine, diethanolamine, lysine, benzyltrimethylammonium hydroxide and tetramethylammonium hydroxide; antiinflammatory agents, wound healing agents |
| 05/10/2005 | US6891061 Packed column and polymerizable compound treating method using the same |
| 05/10/2005 | US6891060 Preparation of 3-acyloxy-2-methylbenzoic acids |
| 05/06/2005 | WO2005040305A1 Overbased metal, carbonate/carboxylate microemulsions |
| 05/06/2005 | WO2005040246A1 Acyloxy acetic acid polymer and method for producing same |
| 05/06/2005 | WO2005040104A1 Novel compounds and their use in medicine: process for their preparation and pharmaceutical compositions containing them |
| 05/06/2005 | WO2005040086A1 Composition of tertiary carboxylic acids |
| 05/06/2005 | WO2005040085A1 Method and device for distilling easily polymerizabale compound-containing liquid, and method and device for handling easily polymerizable compound-containing liquid |
| 05/06/2005 | WO2005040084A1 Metal surfaces to inhibit ethylenically unsaturated monomer polymerization |
| 05/06/2005 | WO2005039766A1 The use of ir, near ir, visable and uv radiation for the preparation of catalysts |
| 05/06/2005 | WO2005039760A1 Process for producing catalyst for methacrylic acid production, catalyst for methacrylic acid production, and process for producing methacrylic acid |
| 05/06/2005 | WO2004101719A3 Manufacture of conjugated linoleic salts and acids |
| 05/06/2005 | WO2004031107A8 Method for the production of at least one partial propylene oxidation and/or ammoxidation product |
| 05/06/2005 | WO2004005234A3 Improvements in metal salts |
| 05/06/2005 | CA2538630A1 Novel compounds and their use in medicine: process for their preparation and pharmaceutical compositions containing them |
| 05/05/2005 | US20050096483 Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of acrolein to acrylic acid |
| 05/05/2005 | US20050096480 Novel process for producing 1,2-diol |
| 05/05/2005 | US20050096445 Distillatively removing acrylic acid from an acrylic acid-containing mixture and generating an aqueous alkali metal acrylate solution from the acrylic acid and an aqueous solution of a basic alkali metal salt; for preparing water-absorbing polyacrylate resins |
| 05/04/2005 | EP1527153A1 Method for the production of conjugated linoleic acids |
| 05/04/2005 | EP1527034A1 A process for the optical resolution of a precursor of sclareolide |
| 05/04/2005 | EP1282591B1 Process for the production of carboxylic acids |
| 05/04/2005 | CN1612887A Phosphino-aminophosphines |
| 05/04/2005 | CN1612853A Integrated process for the manufacture of alkenyl carboxylates |
| 05/04/2005 | CN1612851A Process for purifying an organic acid |
| 05/04/2005 | CN1612850A Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream |
| 05/04/2005 | CN1612780A Method for the production of particles |
| 05/04/2005 | CN1611478A Method for refining long-chain biatomic acid |
| 05/04/2005 | CN1611477A Process for producing adipic acid and hexanediamine by depolymerization of nylon-66 |
| 05/04/2005 | CN1199976C Electrodialysis method for separating sugar and acid in biomass hydrolysate |
| 05/04/2005 | CN1199933C Device and method for producing (methyl) propenoic acid |
| 05/04/2005 | CN1199922C 氧化方法 Oxidation method |
| 05/03/2005 | US6888032 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 05/03/2005 | US6888026 Method for producing (meth)acrylic acid |
| 05/03/2005 | US6888025 Method for absorbing acrylic acid and method for purifying acrylic acid |
| 05/03/2005 | US6888024 Heterogeneous catalysis over fixed catalyst bed whose active composition is at least one multimetal oxide comprising the elements molybdenum, iron, and bismuth |
| 05/03/2005 | US6888023 Oxidation of 2,4,5-trimethylbenzaldehyde, in the presence of oxidation catalysts containing iron, manganese, bromine and optionally zirconium or cerium, and solvents; chemical intermediates for polyimide resins, plasticizers or coatings |
| 05/03/2005 | US6888021 Plastic plasticizer |
| 05/03/2005 | US6887814 Zeolite crystals |
| 04/30/2005 | CA2447584A1 Preparation of metal organic acid chelates |
| 04/28/2005 | WO2005037762A1 Crystallization of adipic acid from its solution in aqueous nitric acid |
| 04/28/2005 | WO2005037756A2 Novel methods for the preparation of 4-[4-(4-methoxymethoxy-4'-methyl-biphenyl-2-yl)-but-3-ene-(e)-1-ynyl]-benzoic acid |
| 04/28/2005 | WO2004035528A8 Method for the production of a multi-metal oxide material |
| 04/28/2005 | US20050090695 Catalytic gas phase oxidation reaction |
| 04/28/2005 | US20050090694 Process for the carbonylation of an ethylenically unsaturated compound and catalyst therefore |
| 04/28/2005 | US20050090691 Halogen-containing aromatic acid dianhydride, halogen-containing aromatic tetranitrile compound, haltogen-containing aromatic tetracarbonxylic acid and halogen containing m-phenylenediamine compound, useful for raw materials of resins excellent in heat resistance, chemical resistance, water repellent |
| 04/28/2005 | US20050090688 Metallized mesoporous silicate and method of oxidation with the same |
| 04/28/2005 | US20050090687 Oxidizing primary amino alcohol in presences of dichromate and/or chromium oxide catalyst to form acid/ketone |
| 04/28/2005 | US20050090685 Process for production of 3,3-dimethyl-2-formylcyclopropanecarboxylic acid derivatives |
| 04/28/2005 | US20050090628 Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers |
| 04/28/2005 | US20050090552 Crystalline form with xray powder diffraction pattern peaks at 4.7, 7.4, 13.8 and 17.0+-0.2 but not at 3.8+-0.2 theta; thermal stability |
| 04/28/2005 | US20050090421 stripping a polyethylene glycol alkyl ether of ethylene and diethylene glycol monoalkyl monoether components, especially by distillation, vacuum distillation, and/or thin film evaporation; reacting product with a fatty ester in the presence of a base catalyst; and heating at 60-200 degrees C. |
| 04/28/2005 | US20050087434 Method and apparatus for transforming chemical fluids using halogen or oxygen in a photo-treatment process |
| 04/27/2005 | EP1526124A1 Process for producing pyromellitic acid |
| 04/27/2005 | EP1526123A1 Catalytic gas phase oxidation reaction |
| 04/27/2005 | EP1525178A1 Method for the heterogeneously-catalysed gas phase partial oxidation of at least one organic compound |
| 04/27/2005 | EP1525172A1 Method for reliably operating a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound |
| 04/27/2005 | EP1330246B1 Use of hydroxyeicosatetraenoic acid derivatives in intraocular surgery |
| 04/27/2005 | EP1305273B1 Method for oxidising hydrocarbons, alcohols and/or ketones |
| 04/27/2005 | CN1610679A Efficient process for the preparation of a factor XA inhibitor |
| 04/27/2005 | CN1610658A Processes for the preparation of glutamic acid compounds and intermediates thereof and novel intermediates used in the processes |
| 04/27/2005 | CN1610655A Process for producing (meth) acrylic acids |
| 04/27/2005 | CN1609092A Prepn process of high purity alkenyl succinic anhydride |
| 04/27/2005 | CN1609091A Method for production of acrylic acid |
| 04/27/2005 | CN1609090A Technological process of extracting nervonic acid from Acertruncatum Bunge oil |
| 04/27/2005 | CN1609089A Catalytic synthesis process of methyl succinic acid |
| 04/27/2005 | CN1609088A Phenol diluent and its prepn process |
| 04/27/2005 | CN1609087A Phenol diluent and its prepn process |
| 04/27/2005 | CN1198782C Pure beta-hydroxyethoxyacetic acid salt, pure 2-p-dioxaneone, and prodn. method thereof |
| 04/27/2005 | CN1198781C Process for preparing acetic acid |