| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/04/2013 | CN103274928A Production method of p-tert-butyl benzoic acid |
| 09/04/2013 | CN103274927A Purification method for nature abscisic acid |
| 09/04/2013 | CN103274926A An improved process to prepare treprostinil, the active ingredient in Remodulin |
| 09/04/2013 | CN103274925A Preparation method of 2,4,-dichlorphenoxyacetic acid |
| 09/04/2013 | CN103274924A Compound 1,3-dicarboxyl-2,2-bis(carbethoxy)propane and synthesis method thereof |
| 09/04/2013 | CN103274923A Method for recycling dehydropregnenolone acetate waste liquor |
| 09/04/2013 | CN103274922A Side rectification and azeotropic rectification integrated acetone-acetic acid-water separation method |
| 09/04/2013 | CN103274921A Device and method for preparing calcium formate by utilizing yellow phosphorus tail gas |
| 09/04/2013 | CN103272594A Hydrogenation catalyst, preparation method thereof and application thereof to preparation of 10-hydroxydecanoate |
| 09/04/2013 | CN103272537A Application method of stirring self-suction reaction kettle in production of sodium gluconate solution through catalytic oxidation method |
| 09/04/2013 | CN103272406A Spraying tower used for acetic acid extraction apparatus |
| 09/04/2013 | CN103272405A Stirring packed tower used for acetic acid extraction device |
| 09/04/2013 | CN102702573B Preparation method of environment-friendly compound adhesion promoter |
| 09/04/2013 | CN102336659B Method for separating diphenic acid from tower bottom waste for preparing benzoic acid |
| 09/04/2013 | CN102335624B Method for preparing caprolactone and adipic acid |
| 09/04/2013 | CN102329196B Method for separating out mono-pentaerythritol and dipentaerythritol |
| 09/04/2013 | CN102276439B Method for preparing fatty acid radical ionic liquid |
| 09/04/2013 | CN102206149B Method for preparing corresponding diacid by catalytic oxidization of naphthene |
| 09/04/2013 | CN102171174B Control of a process for the purification of (meth) acrylic acid using on-line, near ir analysis |
| 09/04/2013 | CN102093913B Method for coprocessing glycerol and heavy oil in hydrothermal mode to simultaneously obtain lactic acid and light oil |
| 09/04/2013 | CN102079699B New crystal form for sodium valproate and preparation method and usage thereof |
| 09/04/2013 | CN101885677B Preparation method for high-alkaline calcium naphthenate |
| 09/04/2013 | CN101747173B Method utilizing acetic acid in PTA oxidation residues to prepare sodium acetate trihydrate |
| 09/04/2013 | CN101445442B Azeotropic distillation method for water-containing acetic acid containing unreacted alkylbenzene in aromatic carboxylic acid preparationcarbon |
| 09/03/2013 | US8524945 Method for producing acrolein comprising the regeneration of a raw glycerin phase |
| 09/03/2013 | US8524939 Intermediates for the synthesis of benzindene prostaglandins and preparations thereof |
| 09/03/2013 | US8524923 Processes for preparing diacids, dialdehydes and polymers |
| 09/03/2013 | US8524922 Process and plant for recovering solid reaction products from solutions |
| 09/03/2013 | CA2626033C Ethanolysis of pet to form det and oxidation thereof |
| 08/29/2013 | WO2013126375A1 Acrylic acid production methods |
| 08/29/2013 | WO2013124423A1 Process for the production of acetic acid and diemthyl ether |
| 08/29/2013 | WO2013124404A1 Catalyst and process for the production of acetic acid and dimetyhl ether |
| 08/29/2013 | WO2013124280A1 Synthesis of 2-(3,4-difluorophenyl)cyclopropanecarboxylic acid |
| 08/29/2013 | US20130225860 Production method for refined 6-bromo-2-naphthalenecarboxylic acid product |
| 08/28/2013 | EP2630471A1 Acetic acid production process |
| 08/28/2013 | EP2630114A1 Process for producing a lactic acid-amine complex |
| 08/28/2013 | EP2630113A1 Glycidyl esters of alpha, alpha branched neononanoic acids, synthesis and uses |
| 08/28/2013 | CN203159509U Recovery system for recovering tetracarboxylic acid from tetracarboxylic acid production wastewater |
| 08/28/2013 | CN103269798A Catalyst shaped body for flow-conducting fixed-bed reactors |
| 08/28/2013 | CN103265972A Deep refining process of asphalt-based non-standard base oil |
| 08/28/2013 | CN103265576A Low-concentration acetic acid concentrating process for hydroxyl ethylidene diphosphonic acid production process |
| 08/28/2013 | CN103265483A Co-crystal of norfloxacin and phthalic acid and preparation method thereof |
| 08/28/2013 | CN103265428A Method for preparing 4-[(3-halogenate-4-oxo) butyl] benzoic acid |
| 08/28/2013 | CN103265426A Environment-friendly preparation method of 2 - (4 - Bromomethylphenyl) propionic acid based on two-phase free radical reaction |
| 08/28/2013 | CN103265425A Method for preparing conjugated linoleic acid through stannate catalysis |
| 08/28/2013 | CN103265424A Cationic glacial acetic acid and purification method thereof |
| 08/28/2013 | CN103265423A Resourceful treatment method for industrial wastes containing acetic anhydride, zinc bromide and the like |
| 08/28/2013 | CN102319587B Catalyst used in carbonylation synthesis of acetic anhydride coproduced with acetic acid and preparation and application methods thereof |
| 08/28/2013 | CN101851155B Method for separating octadecadienoic acid from mixed long-chain fatty acid |
| 08/28/2013 | CN101589013B Process for preparing aromatic polycarboxylic acid by liquid phase oxidation |
| 08/28/2013 | CN101553456B Crystalline potassium salt of lipoxin A4 analogs |
| 08/28/2013 | CN101541725B Method for producing carbonyl compound an pro-oxidant used for production of carbonyl compound |
| 08/28/2013 | CN101421221B Method for producing 3,3,3-trifluoropropionic acid chloride |
| 08/27/2013 | US8519185 Process for producing glycolic acid |
| 08/27/2013 | US8519182 Acetic acid production process |
| 08/27/2013 | US8519181 Preparation of acetic acid |
| 08/27/2013 | US8519172 Decolorization of polyols |
| 08/27/2013 | US8519164 Process and intermediate compounds useful in the preparation of statins |
| 08/27/2013 | US8518231 Process for production of diaryl carbonate |
| 08/27/2013 | CA2706205C Process for the purification of organic acids |
| 08/22/2013 | WO2013122666A1 Amorphous, high glass transition temperature copolyester compositions, methods of manufacture, and articles thereof |
| 08/22/2013 | WO2013122664A1 Amorphous, high glass transition temperature copolyester compositions, methods of manufacture, and articles thereof |
| 08/22/2013 | WO2013121440A1 Process for preparing benzisothiazol-3-yl-peperazin-l-yl-methyl-cyclo hexyl-methanisoindol-1,3-dione and its intermediates |
| 08/22/2013 | US20130217915 Catalyst and Method for Producing Acrylic Acid |
| 08/22/2013 | US20130217869 Method for production of lignin |
| 08/22/2013 | US20130217768 Simple process to produce and separate water soluble and oil soluble antioxidative flavoring compositions from labiatae herbs using green solvents |
| 08/22/2013 | US20130216666 Cashew nut shell liquid with improved stability |
| 08/22/2013 | US20130216486 Synthesis of cyclohexane derivatives useful as sensates in consumer products |
| 08/21/2013 | EP2628721A1 Synthesis of 2-(3,4-difluorophenyl)cyclopropanecarboxylic acid |
| 08/21/2013 | EP2628720A1 Acetic acid production method |
| 08/21/2013 | EP2627625A2 Process for recovering halogen promoters and removing permanganate reducing compounds |
| 08/21/2013 | EP2627624A2 Process for recovering halogen promoters and removing permanganate reducing compounds |
| 08/21/2013 | EP2627623A1 Production of acetic acid with an increased production rate |
| 08/21/2013 | CN203144228U Device for extracting sodium acetate from waste water at bottom of primary distillation tower during production of furaldehyde |
| 08/21/2013 | CN103261097A Lignosulfonate grafts with an acid, ester and non-onic monomers |
| 08/21/2013 | CN103254265A Abiraterone acetate trifluoroacetate, and preparation method and application thereof |
| 08/21/2013 | CN103254176A Salt of trachycladindole A derivative |
| 08/21/2013 | CN103254159A Vitamin C production process improvement method |
| 08/21/2013 | CN103254157A Process method for extracting methanol and acetic acid during furfuraldehyde production |
| 08/21/2013 | CN103254091A Method for joint production of methacrylamide, methyl methacrylate and methacrylic acid |
| 08/21/2013 | CN103254066A Method for using organic waste liquid generated during fluoric ethyl butyrate production process |
| 08/21/2013 | CN103254065A 2,3,4',6-tetracarboxylic acid biphenyl silver complex and preparation method and application thereof |
| 08/21/2013 | CN103254064A Preparation method of ferulic acid |
| 08/21/2013 | CN103254063A Hydrate D-cerous tartrate ferroelectric functional material and preparation method thereof |
| 08/21/2013 | CN103254062A Method of inhibiting polymerization and fouling in acrylic acid and acrylate processes |
| 08/21/2013 | CN103254061A Zinc acrylate substance preparation method |
| 08/21/2013 | CN103254060A Method for preparing adipic acid through co-catalytic oxidation of six-carbon oxygenated compound and cyclohexane |
| 08/21/2013 | CN103254059A Liquid chloroacetic acid production method |
| 08/21/2013 | CN103254058A Process for synthesizing 2, 3, 3, 3-tetrafluoropropionic acid |
| 08/21/2013 | CN103254033A Recovering ethanol with sidestreams to regulate c3+ alcohols concentrations |
| 08/21/2013 | CN103254028A Method for synthesizing carboxylic acid by removing benzyl protection of benzyl carboxylate |
| 08/21/2013 | CN103252247A Catalyst system for synthesis of alpha, beta-unsaturated carboxylic acid or ester, preparation and application |
| 08/21/2013 | CN103252110A Pulse sieve-plate tower for acetic acid extraction device |
| 08/21/2013 | CN102583853B Combined treatment method for two kinds of waste acid water generated in tetraacetylethylenediamine (TAED) production |
| 08/21/2013 | CN102559781B Method for preparing R-mandelic acid |
| 08/21/2013 | CN102557918B Ibuprofen sodium compound and new preparation method thereof |
| 08/21/2013 | CN102489220B Continuous oxidation method and device for preparing oxalic acid |
| 08/21/2013 | CN102381956B Method for preparation of acetic anhydride and acetic acid by means of carbonyl synthesis of methyl acetate and methanol azeotrope and method for separation |
| 08/21/2013 | CN102173985B Method for preparing alkyl ether carboxylate |
| 08/21/2013 | CN102137707B Process and equipment for recovery of valuable materials from terephthalic acid manufacture |