| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 06/06/2007 | EP1791802A2 Optimized liquid-phase oxidation of p-xylene |
| 06/06/2007 | EP1791800A2 Optimized liquid-phase oxidation |
| 06/06/2007 | EP1791426A2 Methods for making retinoids and uses thereof |
| 06/06/2007 | EP1682476B1 Method for the production of formic acid formates |
| 06/06/2007 | EP1599528B1 Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
| 06/06/2007 | EP1575889B1 A microwave induced process for the preparation of substituted 4-vinylphenols |
| 06/06/2007 | EP1421052B1 Flexible method for the common production of formic acid, a carboxylic acid having at least two carbon atoms, and/or the derivatives of the same |
| 06/06/2007 | EP1387824B1 Method for purifying a raw melt of at least one monomer by crystallization |
| 06/06/2007 | CN1976914A 11-methyl-13-tridecanolide, 12-methyl-14-tetradeca- nolide and 13-methyl-15-pentadecanolide, perfume compositions containing the same, and process for the production of compounds including the same |
| 06/06/2007 | CN1976890A Method for producing high-purity terephthalic acid |
| 06/06/2007 | CN1976889A Process for the selective conversion of alkanes to unsaturated carboxylic acids |
| 06/06/2007 | CN1976888A Process for carbonylating phenylalkyl derivatives by means of carbon monoxide |
| 06/06/2007 | CN1974525A Solid acid catalyzed process of synthesizing 3-(2,4,6-trimethylphenyl) butyric acid |
| 06/06/2007 | CN1974524A Scraped falling film evaporator process for concentrating acrylamide solution |
| 06/06/2007 | CN1974523A Scraped falling-film evaporator process for concentrating ammonium acrylate solution |
| 06/06/2007 | CN1974521A Process of producing aromatic carboxylic acid with guanidine compound as catalyst |
| 06/06/2007 | CN1974520A Process of producing aromatic carboxylic acid with diamine compound as catalyst |
| 06/06/2007 | CN1973958A Process and apparatus for purifying arene oxidizing tail gas |
| 06/06/2007 | CN1319932C Integrated process for the manufacture of alkenyl carboxylates |
| 06/06/2007 | CN1319931C Method for preparing 4-isopropyl-naphthenic acid |
| 06/06/2007 | CN1319930C Preparation method of gluconic acid and its salt |
| 06/06/2007 | CN1319928C Method for preparing high-purity methyl-propenoic acid |
| 06/06/2007 | CN1319927C Method of microwave dehydrogenation for producing sodium oxalate |
| 06/06/2007 | CN1319926C Method for producing bromo butyric acid |
| 06/06/2007 | CN1319925C Alkylbenzene photooxidizing process with oxygen to prepare aromatic aldehyde and aromatic acid |
| 06/06/2007 | CN1319636C Method and apparatus for controlling feed of gaseous reaction component |
| 06/05/2007 | US7227030 Method for producing fatty acid alkyl ester composition |
| 06/05/2007 | US7226986 Routing a purified water-wet carboxylic acid cake to a vapor seal zone; and adding a diol that displaces water from the cake, producing the mixture without isolation of a dry carboxylic acid solid; the vapor seal zone prevents the diol from entering any zone proceeding the zone |
| 06/05/2007 | US7226935 Hypoglycemic agent |
| 06/05/2007 | CA2225230C Iridium catalysed carbonylation process for the production of acetic acid |
| 05/31/2007 | WO2007060976A1 Novel ascochlorin derivative compounds and medicinal compositions containing the same |
| 05/31/2007 | WO2007060163A2 Method for safely carrying out gas phase partial oxidation |
| 05/31/2007 | WO2007060036A1 Process for preparing acrolein or acrylic acid or a mixture thereof from propane |
| 05/31/2007 | WO2007028714A3 Method for producing 2-substituted carboxylic acids |
| 05/31/2007 | WO2007025304A3 Process for preparing saccharinic acids and lactones |
| 05/31/2007 | WO2006125158A8 An enrichment process using compounds useful in a polyester process |
| 05/31/2007 | WO2006013581A3 Resolution of racemic organic acids with (1s, 4s)-4[3,4-dichlorophenyl]-1,2,3,4- tetrahydro-n-methyl-1-naphthaloneamine |
| 05/31/2007 | US20070123732 Process for stably operating a continuous preparation process for obtaining acrolein or acrylic acid or a mixture thereof from propane |
| 05/31/2007 | US20070123725 Process for the production of polyols based on natural oils |
| 05/31/2007 | DE102005050376A1 Dicarbonsäure-Derivate und ihre Verwendung Dicarboxylic acid derivatives and their use |
| 05/30/2007 | EP1789376A1 Synthesis process for 2-(3-hydroxy-1-adamantyl)-2-oxoacetic acid |
| 05/30/2007 | EP1789375A1 Process for the production of ¬2-(4-fluoro-benzyl)-phenyl|-acetic acid |
| 05/30/2007 | EP1789179A2 Optimized liquid-phase oxidation in a bubble column reactor |
| 05/30/2007 | EP1358149B1 Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibres |
| 05/30/2007 | CN1972899A L-ornithine-citric acid salt crystal |
| 05/30/2007 | CN1972892A Process for increasing throughput of corn for oil extraction |
| 05/30/2007 | CN1972891A Method for preparing free-flowing crystalline material |
| 05/30/2007 | CN1972890A Method for deuterating haloacrylic acid or its salt |
| 05/30/2007 | CN1972751A Process for producing catalyst for methacrylic acid synthesis |
| 05/30/2007 | CN1972750A A catalyst system |
| 05/30/2007 | CN1970525A Process for preparing emodic acid |
| 05/30/2007 | CN1970524A Method for separating and purifying nonane diacid |
| 05/30/2007 | CN1969903A Acanthopanax extract medicament for preventing and treating cardiovascular and cerebrovascular disease and preparation process thereof |
| 05/30/2007 | CN1318412C Process for the manufacture of HMG-CoA reductase inhibitory mevalonic acid derivatives |
| 05/30/2007 | CN1318397C Preparation for branched surface active agent |
| 05/30/2007 | CN1318376C Method for manufacturing terephthalic acid |
| 05/30/2007 | CN1318375C Process for producing (meth)acrylic acid compound |
| 05/30/2007 | CN1318374C Process for producing (meth)acrylic acid compound |
| 05/30/2007 | CN1318373C Preparation of (Methyl) propenoic acid and (methyl) propenoic acid ester |
| 05/30/2007 | CN1318372C Method for producing cyclohexane dicarboxylic acids and the derivatives thereof |
| 05/30/2007 | CN1318371C Method of feeding solution of crude terephthalic acid to reactor |
| 05/30/2007 | CN1318370C Method for producing an aqueous alkali acrylate solution |
| 05/29/2007 | US7223886 Separating carbonylation product to provide a volatile phase comprising acetic acid, and a less volatile phase;distilling volatile phase to yield a purified acetic acid product and a first overhead comprising organic iodide, water, acetic acid, and permanganate-reducing compounds, distillation |
| 05/29/2007 | US7223885 Alpha -hydroxy acid with a colour (fresh) of not more than 10,000 APHA units is subjected to a crystallization followed by distillation |
| 05/29/2007 | US7223883 Removal of permanganate reducing compounds from methanol carbonylation process stream |
| 05/29/2007 | US7223881 Benzylating p-hydroxybenzaldehyde to obtain 4-benzyloxy-benzaldehyde, reacting with alkylhaloacetate in presence of a base to form glycedic ester, opening the epoxide, alkylating, debenzylating, and halogenating |
| 05/29/2007 | CA2373927C Improved process for the preparation of 3,4-dihydroxybutanoic acid and salts and lactones derived therefrom |
| 05/29/2007 | CA2230952C The purification of alkoxylated fats |
| 05/24/2007 | US20070117999 safe operation of a continuously operated heterogeneously catalyzed gas-phase partial oxidation of an organic compound in a reactor, the composition of the feed gas mixture being controlled by pressure-controlled concentration determination of relevant constituents |
| 05/24/2007 | US20070117998 Process for preparing acrolein or acrylic acid or a mixture thereof from propane |
| 05/24/2007 | DE102005054636A1 Metallorganische Gerüstmaterialien der III. Metal organic frameworks of III. Nebengruppe Subgroup |
| 05/23/2007 | EP1787974A1 Process for washing a distillation column used for the purification of (meth)acrylic acids |
| 05/23/2007 | EP1787973A1 Process for inhibiting the polymerization of (meth)acrylic acids during their distillation |
| 05/23/2007 | EP1787972A2 Process for washing a distillation column used for the purification of (meth)acrylic acids |
| 05/23/2007 | EP1786755A1 Process for the synthesis of zirconium carboxylates |
| 05/23/2007 | EP1786754A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786753A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786752A1 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786751A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786750A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786746A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786745A1 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786557A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786556A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786555A1 Optimized liquid-phase oxidation in a bubble column reactor |
| 05/23/2007 | EP1786551A2 Optimized liquid-phase oxidation |
| 05/23/2007 | EP1786550A2 Optimized production of aromatic dicarboxylic acids |
| 05/23/2007 | EP1611079B1 Method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid |
| 05/23/2007 | EP1066238B1 Process for production of acetic acid |
| 05/23/2007 | CN2903060Y Oxydizing reaction cauldron of mfg. isocaprylic acid by composite catalysis process |
| 05/23/2007 | CN1968917A Filtrate preparation process for terephthalic acid filtrate treatment |
| 05/23/2007 | CN1317254C (meth)acrylic acid crystal and method for the production and purification of aqueous (meth)acrylic acid |
| 05/23/2007 | CN1317251C Heterogeneously catalyzed partial gas phase oxidation of propene to acrolein |
| 05/23/2007 | CN1317250C Method for producing carbonyl compound |
| 05/22/2007 | US7220881 Process for production of acid anhydride |
| 05/22/2007 | US7220877 Compounds, their preparation and use |
| 05/22/2007 | US7220698 catalyst which lowers the hot spot temperature, suppresses a lowering in the activity of a catalyst by thermal degradation, and can stably keep the acrolein conversion higher for a long term |
| 05/22/2007 | CA2262603C Process for preparing fluorine-containing compounds |
| 05/22/2007 | CA2239696C Improved metal-ligand complex catalyzed processes |
| 05/18/2007 | WO2007023295A3 Use of grinding in chemical synthesis |