| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 10/13/2004 | EP1230204B1 Method for carrying out the catalytic gas phase oxidation of propene to form acrylic acid |
| 10/13/2004 | CN2647857Y Oxidation reactor for oxidizing paradimethyl benzene to p-phenyl dimethyl acid |
| 10/13/2004 | CN1537097A Process for producing acid anhydride |
| 10/13/2004 | CN1537092A Process for production of aromatic carboxylic acids with improved water removal technique |
| 10/13/2004 | CN1536994A Hypoglycemic agent |
| 10/13/2004 | CN1535948A Method for purifying acrylic acid b utilizing azeotropic rectification |
| 10/13/2004 | CN1535947A Method of preparing adipic acid by air-oxidating hexacarbocyclic compound |
| 10/13/2004 | CN1535946A Low melting pant tin carboxylate and its manufacturing method |
| 10/13/2004 | CN1170807C Method of purifying and producing acrylic acid or methacrylic acid |
| 10/13/2004 | CN1170806C Fractional condensation of product gas mixture containing acrylic acid |
| 10/13/2004 | CN1170805C Purification method for (meth) acrylic acid |
| 10/13/2004 | CN1170799C Method for catalytic gas phase oxidation of propene into acrolein |
| 10/13/2004 | CN1170624C Catalytic gas-phase oxidation method and pipe-casting type reactor |
| 10/12/2004 | US6803488 Dehydrofluorination, deesterification, by-product inhibition; high molecular weight esters soluble in solvent, fluorination in liquid phase |
| 10/12/2004 | US6803473 Method for producing maleic acid anhydride |
| 10/12/2004 | US6803429 Selective ring-opening cross-metathesis of cycloolefins |
| 10/12/2004 | US6803378 For therapy and prophylaxis of acquired immune deficiency syndrome (aids), or arc |
| 10/12/2004 | US6803217 Process for the recovery of organic acids |
| 10/07/2004 | WO2004085379A1 Derivatives of 3,3',5,5'-tetraalkylbenzidine bis {mono-carboxylatobenzenepolycarboxylic} and applications thereof |
| 10/07/2004 | WO2004085372A1 α-PENTAFLUOROETHYLACRYLIC ACID DERIVATIVE AND PROCESS FOR PRODUCING THE SAME |
| 10/07/2004 | WO2004085371A1 Method for the separation of monomers from a composition containing a monomer |
| 10/07/2004 | WO2004085370A1 Method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid |
| 10/07/2004 | WO2004085369A1 Method for the heterogeneously catalysed partial gas phase oxidation of propene to form acrylic acid |
| 10/07/2004 | WO2004085368A2 Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid |
| 10/07/2004 | WO2004085367A1 Method for the heterogenically catalysed partial gas phase oxidation of propene to form acrylic acid |
| 10/07/2004 | WO2004085365A2 Method for the heterogeneously catalyzed partial gas phase oxidation of acrolein into acrylic acid |
| 10/07/2004 | WO2004085364A1 Method of stabilizing 1,4-dihydroxy-2-naphthoic acid |
| 10/07/2004 | WO2004085362A1 Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrolein |
| 10/07/2004 | WO2004037416B1 Vanadium catalysts and process for the direct conversion of methane into acetic acid |
| 10/07/2004 | US20040199033 Method for hydrogenating organic compounds by means of ru/sio2 catalysts |
| 10/07/2004 | US20040199010 High-purity biphenyltetracarboxylic dianhydride and process for producing the same |
| 10/07/2004 | US20040199008 Vapor-phase oxidation of isobutylene, t-butanol or propylene; combination of mixed metal oxide containing molybdenum and bismuth as active ingredients and inorganic fibers |
| 10/07/2004 | US20040199007 Raney copper |
| 10/07/2004 | US20040199006 oxidation of aromatic hydrocarbons and/or aromatic aldehyde intermediates, in the presence of oxidation catalysts, to form carbocyclic acids |
| 10/07/2004 | US20040199001 dehydrogenation of hydrocarbon gases in the presence of heterogeneous halogenation catalysts, to form unsaturated hydrocarbon intermediates, used to form unsaturated carboxylic acids and nitriles |
| 10/07/2004 | US20040198844 Cogeneration of organic compounds with synthesis gas by catalytic partial oxidation |
| 10/07/2004 | US20040198787 Efficient process for the preparation of a factor Xa inhibitor |
| 10/07/2004 | US20040195085 Contacting vapor phase from catalytic oxidation of propane, propylene and/or acrolein with aqueous medium |
| 10/07/2004 | DE10346135A1 Stabilizer mixture, useful for the stabilization of polymerizable compounds against polymerization, comprises at least one radical trap containing glycerol units and at least one other (co)stabilizer |
| 10/07/2004 | DE10313214A1 Catalyzed partial gas phase oxidation of acrolein to acrylic acid, useful for adhesives, comprises processing the reaction mixture using a fixed catalyst bed of a Mo and V oxide comprising two temperature zones in series |
| 10/07/2004 | DE10313213A1 Process for partial gas phase oxidation of propene to acrylic acid involves oxidation of propene-containing gas mixture; and then oxidation of the resultant acrolein-containing product over fixed catalyst bed zones at different temperatures |
| 10/07/2004 | DE10313211A1 Partial oxidation of acrolein to acrylic acid by conducting starting reaction gas mixture comprising acrolein, molecular oxygen, and inert gas(es) in one reaction stage over fixed catalyst bed comprising multimetal oxide(s) |
| 10/07/2004 | DE10313210A1 Partial oxidation of propene for manufacture of acrolein, involves passing reaction mixture over catalyst bed having preset temperature zones whose transition is different from transition between preset fixed catalyst bed zones |
| 10/07/2004 | DE10313208A1 Heterogeneous catalyzed gas phase partial oxidation of propene to acrylic acid, useful for polymers and adhesives, comprises processing a reaction mixture using two fixed catalyst beds comprising four separate reaction zones in series |
| 10/06/2004 | EP1464637A1 Low melting point tin salt of carboxylic acid and method for producing the same |
| 10/06/2004 | EP1464393A1 Catalyst for producing phthalic anhydride |
| 10/06/2004 | EP1463709A1 Integrated process for the manufacture of alkenyl carboxylates |
| 10/06/2004 | EP1463706A1 Process for production of 3,3-dimethyl-2-formylcyclopropanecarboxylic acid derivatives |
| 10/06/2004 | EP1463705A2 Integrated process for producing carbonylation acetic acid,acetic anhydride,or coproduction of each from a methyl acetate by-product stream |
| 10/06/2004 | EP1228025B1 A method for solvent free hydrodebromination in the production of aromatic carboxylic acids |
| 10/06/2004 | EP1208075B1 Process for producing a vic-dichloro acid fluoride |
| 10/06/2004 | EP1206431B1 Non-corrosive catalytic hydrolysis of fatty acid esters to fatty acids |
| 10/06/2004 | CN1535259A Method for producing acetic acid |
| 10/06/2004 | CN1534010A Water soluble extract of red sage root and its preeparation method and use |
| 10/06/2004 | CN1533836A Vanadium/phosphorus mixed oxide catalyst precusor, active catalyst for preparing maleic anhydride and method of preparing maleic anhydride |
| 10/06/2004 | CN1169876C Anticorrosion table top and its mfg. method |
| 10/06/2004 | CN1169781C Prcess for prepn. of salts of L-carnitine and alkanoyl L-carnitine with mucic acid |
| 10/06/2004 | CN1169775C Poly-basic aromatic carboxylic acid for flotation and its preparing method |
| 10/06/2004 | CN1169773C Method for preparing azelaic acid |
| 10/06/2004 | CN1169772C Extraction process of effective rhubarb component, fast released Sanhuang prepn and its prepn process |
| 10/06/2004 | CN1169768C (4-alkynyl), aromatic keto-acid compound, synthesis method and its application |
| 10/05/2004 | US6800783 Preparing aliphatic carboxylic acids by oxidation of corresponding aldehydes with oxygen or oxygen-containing gas mixtures in presence of vanadium, chromium, molybdenum, iron, cobalt, nickel, ruthenium, rhodium, palladium and/or copper |
| 10/05/2004 | US6800257 Process for preparing trichloracetic acid and apparatus for use in such process |
| 09/30/2004 | WO2004052820A8 Process for the purification of a crude carboxylic acid slurry |
| 09/30/2004 | WO2004039992A3 Isolation of carboxylic acids from fermentation broth |
| 09/30/2004 | WO2004032849A3 Methods of administering fgf18 |
| 09/30/2004 | US20040192966 Mixed oxide oxidation catalyst containing molybdenum, vanadium, niobium and silver |
| 09/30/2004 | US20040192965 Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid |
| 09/30/2004 | US20040192964 Heterogeneously catalyzed partial gas phase oxidation of propene to acrolein |
| 09/30/2004 | US20040192963 Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid |
| 09/30/2004 | US20040192962 Treating cyclohexylphenyl ketone with ylide in anhydrous solvent to obtain a-cyclohexylstyrene; dihydroxylation, oxidation |
| 09/30/2004 | US20040192960 Process for the optical resolution of a precursor of sclareolide |
| 09/30/2004 | US20040192951 Reacting carboxylic acid with tin salt in contact with oxygen |
| 09/30/2004 | US20040192949 Solvent extraction using free radical scavenger; isolation |
| 09/30/2004 | US20040192545 Method for preparing a catalyst for partial oxidation of propylene |
| 09/30/2004 | US20040191953 Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid |
| 09/30/2004 | US20040191139 Process of producing compounds |
| 09/29/2004 | EP1462436A1 Halogen-containing aromatic compound |
| 09/29/2004 | EP1462435A1 Process for producing diene compound |
| 09/29/2004 | EP1461329A1 Preparation of substituted phthalic anhydrides and substituted phthalimides |
| 09/29/2004 | EP1461303A2 PROCESS FOR THE SYNTHESIS OF CHIRALLY PURE b-AMINO-ALCOHOLS |
| 09/29/2004 | EP1412043A4 Azeotropic distillation of cyclic esters of hydroxy organic acids |
| 09/29/2004 | EP1360164B1 Production of potassium formate |
| 09/29/2004 | EP1235783B1 A process for separation of the dipotassium salt of naphthalene dicarboxylic acid using activated carbon beds |
| 09/29/2004 | EP1124789B1 Production of amides and/or acids from nitriles |
| 09/29/2004 | CN1532179A Refining device and method for propenoic acids |
| 09/29/2004 | CN1168696C Method for catalytic gas phase oxidation of propene into acrylic acid |
| 09/28/2004 | US6797840 Promoted multi-metal catalyst |
| 09/28/2004 | US6797839 Multi-metal oxide materials with a two-phase structure |
| 09/28/2004 | US6797773 Catalytic materials for selective oxidation of alcohols, process for production thereof and their use in alcohol oxidation process |
| 09/28/2004 | CA2209992C Method of separation and purification of hydroxynaphthalenecarboxylic acids |
| 09/28/2004 | CA2153309C Method and apparatus for displacing liquor from a slurry of particulate solid material |
| 09/28/2004 | CA2109028C Stabilized sorbic acid or salt thereof |
| 09/23/2004 | WO2004081169A2 Method of preparing alpha, beta-difluoroacrylic compounds |
| 09/23/2004 | WO2004081080A1 Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
| 09/23/2004 | WO2004080943A1 Cinnamyl alcohol derivative compounds and drugs containing the compounds as the active ingredient |
| 09/23/2004 | WO2004080942A1 Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil |
| 09/23/2004 | WO2004080941A2 Method of manufacturing acetic acid |
| 09/23/2004 | WO2004080940A1 Process for production of perfluorodiacyl fluorides |
| 09/23/2004 | US20040186317 heating phenanthrene and glacial acetic acid, adding drops of hydrogen peroxide, distilling, cooling to crystallize diphenic acid out, boiling with sodium carbonate and activated charcoal for decolorization, filtering, acidifying filtratre with hydrogen chloride, then cooling to further crystallize |