| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/09/2009 | CN101525283A Zone melting purification device and method of purifying phenylformic acid by adopting same |
| 09/09/2009 | CN101524649A Preparation method of alkyl naphthalene oxidation catalyst |
| 09/09/2009 | CN100537508C Process for the preparation of alicyclic carboxylic acids or derivatives thereof |
| 09/09/2009 | CN100537495C Selective ring-opening cross-metathesis of cycloulefins |
| 09/09/2009 | CN100537031C Processes for production of organic compounds |
| 09/08/2009 | US7586002 Catalyst for purification of aromatic acids |
| 09/08/2009 | US7586001 Nateglinide crystals |
| 09/08/2009 | US7586000 Optimized liquid-phase oxidation |
| 09/08/2009 | US7585990 Fatty acids formed by catalytic hydrogenation of unsaturated oils for foods |
| 09/08/2009 | US7585984 deuterated dianhydride monomer, d6-3,3',4,4'-biphenyltetracarboxylic dianhydride; excellent mechanical, thermal and optical properties, for high-power lasers used in particular when nuclear physics experiments are carried out; prepare the monomer by deuteration |
| 09/08/2009 | US7585822 Emulsifier blends for lubricating oils |
| 09/08/2009 | US7585336 Fuel additive compositions for diesel engine equipped with a particulate trap |
| 09/08/2009 | CA2415620C Method for producing fluorine-containing compound |
| 09/03/2009 | WO2009107721A1 Fatty acid metal salt for forming ultrafine metal particle |
| 09/03/2009 | WO2009106908A1 Process for preparing rhein |
| 09/03/2009 | WO2009053341A3 Method for the oxidation of cycloaliphatic alcohols, cycloaliphatic ketones, or mixtures thereof with aqueous nitric acid and treatment of the dicarboxylic acids |
| 09/03/2009 | WO2009045637A3 Methods for the synthesis of acrylic acid and derivatives from fumaric acid |
| 09/03/2009 | US20090221849 Supported gold catalyst |
| 09/03/2009 | US20090221848 Process for preparing octenoic acid derivatives |
| 09/02/2009 | EP2094637A1 Beta-nucleating agent for polyproplyene and process for its preparation |
| 09/02/2009 | EP2094636A1 Process for preparing 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid |
| 09/02/2009 | EP2094635A1 Carbonylation of conjugated dienes |
| 09/02/2009 | CN101522604A Method for the production of alpha-keto acids and esters thereof |
| 09/02/2009 | CN101521117A Electrolyte for aluminium electrolytic capacitor and preparation method of core solute thereof |
| 09/02/2009 | CN101519359A Method for recovering polyimide through hydrolysis |
| 09/02/2009 | CN101519348A Process for reclaiming o-chlorobenzoic acid from mother liquor or waste water |
| 09/02/2009 | CN100534972C Method for purifying succinic acid from fermentation broth |
| 09/02/2009 | CN100534971C Recovery method for liquid chemical product in chemical product manufacturing apparatus |
| 09/02/2009 | CN100534970C Process for producing alpha,beta-unsaturated carboxylic acid |
| 09/02/2009 | CN100534969C Process for reduction of carbon dioxide with organometallic complex |
| 09/02/2009 | CN100534614C Method for producing metal oxide catalyst |
| 09/01/2009 | US7582802 Propylene hydroformylation |
| 09/01/2009 | US7582794 2-(3-Hydroxyphenoxymethyl)-6-methylbenzoic Acid as chemical intermediate for synthesizing PPAR agonists and antagonists |
| 09/01/2009 | US7582793 Carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures; oxidizing p-xylene to form terephthalic acid that can be purified more easily |
| 09/01/2009 | US7582792 catalytic producing acetic acid, methyl acetate, acetic anhydride by feeding methanol, dimethyl ether, methyl acetate and contacted with carbon monoxide; corrosion resistance, free of hydrogen iodide and/or methyl iodide |
| 09/01/2009 | US7582787 Such as zinc 3,5-di-tert-butylsalicylic acid; toners |
| 08/27/2009 | WO2009103948A1 Process for the production of acetic acid |
| 08/27/2009 | US20090216044 Method for synthesis of keto acids or amino acids by hydration of acetylene compound |
| 08/27/2009 | US20090214740 Method for the preparation of a stable alkali metal lactate in powder form |
| 08/27/2009 | CA2714508A1 Process for the production of acetic acid |
| 08/26/2009 | EP2093211A1 Process for production of isophthalic acid |
| 08/26/2009 | EP2093210A1 Process for production of terephthalic acid |
| 08/26/2009 | EP2093209A1 Process for the production of acetic acid |
| 08/26/2009 | EP2093206A1 Process for the iodination of aromatic compounds |
| 08/26/2009 | EP2091907A1 Aluminium trilactate powder and method for preparation |
| 08/26/2009 | EP2091906A1 Process for preparing (meth)acrylic acid |
| 08/26/2009 | EP2091905A1 Method for converting nitrile compounds into corresponding carboxylic acids and esters |
| 08/26/2009 | EP1833758B1 Method for separating gas |
| 08/26/2009 | EP1477488B1 Novel optically active compounds, method for kinetic optical resolution of carboxylic acid derivatives and catalysts therefor |
| 08/26/2009 | EP1463709B1 Integrated process for the manufacture of alkenyl carboxylates |
| 08/26/2009 | CN201296735Y Alcohol recovery tower for continuously separating hexanoic acid and ethyl caproate |
| 08/26/2009 | CN101516930A A process for the synthesis and preparation of polymeric materials for use in optical applications such as plastic lenses |
| 08/26/2009 | CN101516822A Method for removing iodide compound from organic acid |
| 08/26/2009 | CN101516821A Process for obtaining an organic salt or organic acid from an aqueous sugar stream |
| 08/26/2009 | CN101516820A Process for producing acrylic acid |
| 08/26/2009 | CN101516819A Process and intermediates for preparing integrase inhibitors |
| 08/26/2009 | CN101516490A Liquid-gas phase reactor system |
| 08/26/2009 | CN101514352A Method for extracting unsaturated fatty acid of pine nuts of Korean pine |
| 08/26/2009 | CN101514156A Method for recycling naproxen resolution solvent, resolving agent and by-product by overgravitational field |
| 08/26/2009 | CN101514155A Method for separating and extracting pyruvic acid from fermentation broth by an ion exchange method |
| 08/26/2009 | CN101514154A Synthetic method for aliphatic alpha-calcium picrolonate |
| 08/26/2009 | CN101513601A PX oxidation reactor for producing terephthalic acid |
| 08/26/2009 | CN100532344C Method of synthesizing potassium sorbate |
| 08/26/2009 | CN100531888C Reactor, reactor control system, and catalytic gas phase oxidation reaction method |
| 08/25/2009 | US7579501 Vapor phase catalytic oxidation for producing acrolein or acrylic acid from propylene using an oxidation catalyst made of mixed oxides of Mo, Bi, Ni, Co, Fe, one element selected from Mg, Ca, Zn, Ce, Sm and halogen, one metal from B, P, As and W |
| 08/25/2009 | US7579500 Reacting xylene with chloroacetyl chloride forming 2-chloro-1-(2,5-dimethylphenyl)ethanone; rearrangement; hydrolysis |
| 08/25/2009 | US7579493 continuous esterification of C1-22 (fatty) acids with C1-10 monoalkanols, C2-5 di- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor |
| 08/25/2009 | US7579489 Acid-catalyzed dehydration of fructose in 1-methyl-2-pyrrolidinone, dimethylacetamide, or dimethylformamide with a catalyst; end-capped polyethylene glycol eliminates the formation of undesirable PEG-HMF ethers |
| 08/25/2009 | US7579297 kneading particles comprising catalyst components containing Mo, Fe,Bi , an organic binder such as hydroxyethylmethyl cellulose, and a liquid to form a kneaded mixture; extrusion molding; oxidation catalyst for producing acrylic acid and acrolein from propylene, isobutylene with O2 |
| 08/25/2009 | US7579191 Reaction method using microreactor |
| 08/25/2009 | CA2516613C Powdered overbased amorphous alkaline earth metal salts and processes for making |
| 08/25/2009 | CA2505977C Process for the oxidative purification of terephthalic acid |
| 08/25/2009 | CA2418280C Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol |
| 08/20/2009 | WO2009100989A2 Method for producing 6-hydroxy hexanoic acid esters |
| 08/20/2009 | US20090209786 Control of impurities in product glacial acetic acid of rhodium-catalyzed methanol carbonylation |
| 08/20/2009 | US20090209785 Process for Production of 2,3,4-Trifluoro-5-(Iodo or Bromo)-Benzoic Acid |
| 08/20/2009 | US20090209757 High purity; reacting paliperidone with palmitic anhydride, a pyridine derivative and solvent; palmitic anhydride made from pure palmitic acid |
| 08/20/2009 | US20090209649 Alpha-glucosidase inhibitor, inhibitor for blood glucose level elevation and functional food containing tricaffeoylaldaric acid and method for producing tricaffeoylaldaric acid |
| 08/20/2009 | DE102008009992A1 Producing dicarboxylic acid e.g. oxalic acid, malonic acid, succinic acid, glutaric acid, undecanedioic acid, adipic acid or dodecanedioic acid, comprises oxidation of cycloaliphatic alcohols and/or cycloaliphatic ketones with nitric acid |
| 08/20/2009 | CA2714574A1 Process for preparing 6-hydroxycaproic esters |
| 08/19/2009 | EP2089372A2 Process for preparation of aldonic acids and derivatives thereof |
| 08/19/2009 | EP2089350A1 Crystalline potassium salt of lipoxin a4 analogs |
| 08/19/2009 | EP2089349A1 Process for the synthesis of 2,5-dihydroxyterephthalic acid |
| 08/19/2009 | EP2089348A1 Method for making polyetherimides |
| 08/19/2009 | EP2089347A2 Processes for the production of fatty acid alkyl esters |
| 08/19/2009 | EP2089153A1 Aluminum naphthalenedicarboxylate as a porous organometallic framework material |
| 08/19/2009 | CN201292279Y Composite separation apparatus for naphthenic acid |
| 08/19/2009 | CN101511767A Process for preparing fluorinated acids |
| 08/19/2009 | CN101511766A Process for the reduction of aldehyde concentration in a target stream |
| 08/19/2009 | CN101508643A Method of preparing rhein |
| 08/19/2009 | CN101508642A Method for preparing 2,5-dihydroxy p-benzene dicarboxylic acid |
| 08/19/2009 | CN101508641A Applied technology for realizing circular economy industrial chain in benzoic acid purification production process |
| 08/19/2009 | CN101508640A Method for recycling dilute acetic acid with azeotropic abstraction distillation |
| 08/19/2009 | CN101508639A Method of preparing 4-alkyl fatty acid |
| 08/19/2009 | CN101508638A Method for preparing mixed benzol dioctyl phthalate and benzene acetic acid |
| 08/19/2009 | CN101507927A Preparation method of composite oxides catalyst and use thereof in acrylic acid synthesizing process |
| 08/19/2009 | CN101507926A Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| 08/19/2009 | CN100528850C Indane acetic acid derivatives and their use as pharmaceutical agents, intermediates, and method of preparation |
| 08/19/2009 | CN100528829C Metathesis synthesis of pheromones or their components |
| 08/19/2009 | CN100528828C Production method of racemiation3-hydroxy-3- (2-phenylethyl) hexanoic acid C1-6 alkyl ester |