C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides

Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
12/2013
12/04/2013	CN103420943A 4-((4-(2, 3, 4-trimethoxy-benzyl)piperazine-1-yl)methyl)-3-nitro-benzoyl guanidine tartrate
12/04/2013	CN103420911A L-meptazinol phenyl carbamate-L-(+)-tartrate and preparation method thereof
12/04/2013	CN103420856A Salmeterol preparation method
12/04/2013	CN103420836A Purifying method of fluorine-containing low-carbon aliphatic acid
12/04/2013	CN103420829A Method for recovering gallic acid and hydrochloric acid through adopting reverse osmosis membrane technology
12/04/2013	CN103420828A Method for preparing reaction material by hydrofining of crude p-phthalic acid
12/04/2013	CN103420827A Method for extracting succinic acid from fermentation broth through two aqueous phase extraction
12/04/2013	CN103420826A Method for extracting succinic acid from fermentation broth
12/04/2013	CN103420825A Synthetic method of difluoroacetate
12/04/2013	CN103420824A Preparation method of alkoxy methyl benzoic acid
12/04/2013	CN103420823A Synthetic method for alpha-chlorine-4fluorine phenyl benzyl ketone
12/04/2013	CN103420820A Production method of methylacrolein
12/04/2013	CN103420780A Method for removing hexafluoro-chlorobutylene from trifluoro-dichloroethane
12/04/2013	CN103420424A Preparation of rod-shaped nano tungsten trioxide and technology of catalytic synthesis of adipic acid therethrough
12/04/2013	CN103418402A Catalyst for preparing acrylic acid by acrolein oxidation and preparation method thereof
12/04/2013	CN103418325A Nitrogen introducing device applied to DHPPA synthesis
12/04/2013	CN102658202B Metal-porphyrin polymer catalyst and preparation and application thereof
12/04/2013	CN102532591B Method for depolymerizing waste polyester bottle
12/04/2013	CN102503803B Organic acid compound as well as extraction method and application thereof
12/04/2013	CN102302914B Device for mixing acetic acid with catalyst in acetic acid pyrolytic cracking reaction
12/04/2013	CN102093226B Preparation method of diaminomethyl cyclobutane oxalate
12/04/2013	CN102040507B Preparation methods of 7-phenyl-6-heptynoic acid and reactant of sodium 5-bromo-pentanoate
12/04/2013	CN102030627B Process for recovering valued compounds from a stream derived from purification of methyl methacrylate
12/03/2013	US8598383 Pharmaceutical composition for treating or preventing degenerative and inflammatory diseases
12/03/2013	US8598379 Method of lowering the cloud point of fatty acid esters
12/03/2013	US8598378 Methods and compositions for extraction and transesterification of biomass components
12/03/2013	US8598065 Process for charging a longitudinal section of a catalyst tube
11/2013
11/28/2013	WO2013176101A1 Lactic acid production method
11/28/2013	WO2013175489A1 A multi-phase reactor system with slinger liquid reflux distributor
11/28/2013	WO2013174911A1 Carboxylic acid recovery from magnesium carboxylate mixture
11/28/2013	WO2013174848A2 Improved process for the preparation of treprostinil and derivatives thereof
11/28/2013	WO2013155245A3 Catalytic conversion of lactic acid to acrylic acid
11/28/2013	US20130317254 Process for Producing Acrylic Acids and Acrylates
11/28/2013	US20130317253 Process for continuous recovering (meth) acrylic acid and apparatus for the process (as amended)
11/28/2013	US20130317192 Processes for preparing diacids, dialdehydes and polymers
11/28/2013	US20130317191 Processes for preparing diacids, dialdehydes and polymers
11/28/2013	US20130316907 Process for preparation of herbicidal salts
11/28/2013	US20130316426 Methods for synthesis of olefins and derivatives
11/28/2013	US20130313192 Acid resistant pbi membrane for pervaporation dehydration of acidic solvents
11/27/2013	EP2666764A1 Ferric citrate containing substantially no -oxidized iron hydroxide
11/27/2013	EP2666763A1 Carboxylic acid recovery from magnesium carboxylate mixture
11/27/2013	EP2665534A1 Apparatuses including support member modifications and processes related thereto
11/27/2013	CN203307255U Back-wash treatment device for acetic acid recovery in production of secbutyl acetate
11/27/2013	CN203307098U Electrodialysis device for purifying and concentrating ammonium adipate
11/27/2013	CN203303694U Mixed flow separating tank for production of sec-butyl acetate
11/27/2013	CN203303685U Sodium formate crystallization energy-saving device
11/27/2013	CN103415497A Glycerides and fatty acid mixtures and methods of using same
11/27/2013	CN103408421A Terephthalic acid purification method
11/27/2013	CN103408420A Sodium gluconate oxidizing equipment and implementation method thereof
11/27/2013	CN103408419A Method for treating 7-ADCA (Amino Desacetoxy Cephalosporanic Acid) extract liquor
11/27/2013	CN103408418A Preparation and purification method of solid malonic acid
11/27/2013	CN103408417A Preparation method for nanoscale ferrous oxalate
11/27/2013	CN103408416A Synthesis method of high-purity D-2-chloropropionyl chloride
11/27/2013	CN103408415A Synthesis method of capacitance grade 2-sebacate
11/27/2013	CN103408412A Separation process of substituted benzaldehyde co-produced products
11/27/2013	CN103408176A Method for treatment of (methyl) acrylic acid production wastewater and recovery of sodium acetate
11/27/2013	CN103408175A Treatment and reclamation method of (methyl) acrylic acid production wastewater
11/27/2013	CN103408103A Method for recovering perfluoro carboxylic acid salt surfactant in waste water through reverse osmosis membrane technology
11/27/2013	CN103408082A Recovery method and device for formic acid solvent during metronidazole production
11/27/2013	CN102633629B Synthesis method of shikimic acid
11/27/2013	CN102527292B Coupling link-free carboxylate Genmini surfactant and synthesis method thereof
11/27/2013	CN102260168B Separation method and product of monochlorophthalic acid
11/27/2013	CN102260157B Method for preparing corresponding diacid by cyclone oxide
11/27/2013	CN102249902B Preparation method of 1-chloroformyl-2-ethoxy naphthalene crystal
11/27/2013	CN102190573B Method for preparing formic acid through electrochemical catalytic reduction of carbon dioxide
11/27/2013	CN102093202B Method for preparing magnesium oxalate granules by utilizing biomimetic synthesis technology
11/27/2013	CN101781196B Method for preparing 4-(4-chlorphenyl)-cyclohexyl-1-formic acid
11/26/2013	US8592627 Process for producing (meth)acrylic acid and crystallization system
11/26/2013	US8592624 Production of ethylenically unsaturated acids or esters thereof
11/21/2013	WO2013173372A1 Reduction catalysts
11/21/2013	WO2013173156A1 Reactive distillation of a carboxylic acid and a glycol
11/21/2013	WO2013173017A1 Hydrocarbon conversion process
11/21/2013	WO2013172414A1 Catalyst for use in production of methacrylic acid, method for producing said catalyst, and method for producing methacrylic acid using said catalyst
11/21/2013	US20130310604 Process For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid
11/21/2013	US20130310603 Process for producing acetic acid
11/21/2013	US20130310602 Process And Apparatus For Slurry Separation Of Aromatic Carboxylic Acid
11/21/2013	US20130310601 Hydrocarbon Conversion Process
11/21/2013	US20130310599 Process for the production of methyl acetate/acetic acid
11/21/2013	US20130310586 Synthesis of peretinoin
11/21/2013	US20130310579 Processes for preparing diacids, dialdehydes and polymers
11/21/2013	US20130310578 Processes for preparing diacids, dialdehydes and polymers
11/20/2013	EP2664607A1 Fluorination process
11/20/2013	EP2663543A1 Co2 hydrogenation method for producing formic acid
11/20/2013	EP1995231B1 Process for preparation of methyl methacrylate using recycled methanol
11/20/2013	CN203291555U Spray column used for acetic acid extracting device
11/20/2013	CN203291554U Agitating packing tower used for acetic acid extracting device
11/20/2013	CN103402967A Acetic acid production method
11/20/2013	CN103402966A Acetic acid production process
11/20/2013	CN103402965A Production of acetic acid from methanol
11/20/2013	CN103402964A Process for producing acetic acid
11/20/2013	CN103402618A Method and device for mixing two fluid flows
11/20/2013	CN103396635A Preparation method of heat stabilizer for PVC
11/20/2013	CN103396451A Method for preparing intermediate of tenofovir disoproxil fumarate
11/20/2013	CN103396308A Two seed germination inhibitors and applications thereof
11/20/2013	CN103396307A Method for synthesizing p-methoxyphenylacetic acid through methyl phenoxide
11/20/2013	CN103396306A Cardanol Gemini polyoxyethylene ether carboxylate and preparation method thereof
11/20/2013	CN103396305A Process for purification of (meth) acrylic acid using on-line near IR analysis
11/20/2013	CN103396304A Nervonic acid chemosynthesis method
11/20/2013	CN103396303A Method for separating and purifying eicosapentaenoic acid and docosahexaenoic acid from micro-algal oil or fish oil
11/20/2013	CN103395925A Treatment method for recycling para-hydroxybenzoic acid wastewater

1 ... 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ... 432