| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/18/2013 | CN103304405A Selective chlorination method |
| 09/18/2013 | CN103304404A Preparation method of 2,2-bis(hydroxymethyl) butyrate |
| 09/18/2013 | CN103304403A Method for synthesizing 4-benzene-1-butyric acid |
| 09/18/2013 | CN103304402A Method for preparing 4-benzene-1-butyric acid |
| 09/18/2013 | CN103304401A Preparation method of ibuprofen arginine salt with ultrahigh purity |
| 09/18/2013 | CN103304400A Method for efficiently preparing ibuprofen arginine |
| 09/18/2013 | CN103304399A Method for preparing acrylic acid through dehydration and oxidization of glycerin in one-step method |
| 09/18/2013 | CN103304398A Purification method of carboxylic acid aqueous solution |
| 09/18/2013 | CN103304397A Refining method for roughhew aromatic dicarboxylic acid |
| 09/18/2013 | CN103304355A Double bond addition halogenation method of alkene or alkene derivative |
| 09/18/2013 | CN103304055A Method for treating production wastewater of naphthol AS and derivatives thereof and recovering useful materials therein |
| 09/18/2013 | CN103303921A Polymer of CO2 or CO, application of polymer and method for directly synthesizing methanal and methanoic acid by adding hydrogen or water |
| 09/18/2013 | CN103301879A Preparation method and application of supported molecular sieve based catalyst |
| 09/18/2013 | CN103301864A Pd/TiO2-C-SiC catalyst as well as preparation and application thereof |
| 09/18/2013 | CN103301669A Purified terephthalic acid filter device |
| 09/18/2013 | CN103301199A Comprehensive utilization method of Cedrela sinensis young leaves |
| 09/18/2013 | CN102838477B Method for preparing high-purity calcium lactate by taking oyster shell as raw material |
| 09/18/2013 | CN102627554B Preparation method of methylene disalicylic acid |
| 09/18/2013 | CN102503804B Method for continuously discoloring succinic acid fermentation liquor by using activated carbon |
| 09/18/2013 | CN102500397B Preparation method for solid super acid catalyst for synthesis of levulinic acid and application of solid super acid catalyst |
| 09/18/2013 | CN102351679B Method for producing crystalline sodium acetate with one-step method |
| 09/18/2013 | CN102311334B Reaction method and reactor for preparing acrylic acid through selective oxidation of propane |
| 09/18/2013 | CN102249900B Method for separation and purification of 2-adamantanecarboxylic acid and 1-adamantanecarboxylic acid |
| 09/18/2013 | CN102050721B Method for synthesizing phenylacetic acid from benzyl chloride carbonyl |
| 09/18/2013 | CN101980998B Purification of acetic acid from wood acetylation process |
| 09/18/2013 | CN101945845B Cyclohexanone production process with modified post-distillation |
| 09/18/2013 | CN101945844B Cyclohexanone production process with multiple post-distillation |
| 09/18/2013 | CN101687760B Process for the carbonylation of dimethyl ether |
| 09/18/2013 | CN101492363B Highly soluble and monomeric nickel carboxylate and polymerization of conjugated dienes using it as catalyst |
| 09/18/2013 | CN101381325B Method for simultaneously preparing phenylacetamide and phenylacetic acid by benzyl cyanide hydrolysis in ammonia-containing high temperature aqueous water medium |
| 09/18/2013 | CN101311158B Process for preparation of methyl methacrylate using recycled methanol |
| 09/17/2013 | US8536374 Method for preparation of dicarboxylic acids from saturated hydrocarbons or cycloaliphatic hydrocarbons by catalytic oxidation |
| 09/17/2013 | CA2621962C Improved process for the production of derivatives of saturated carboxylic acids |
| 09/12/2013 | WO2013134385A1 Preparation of alpha, beta-unsaturated carboxylic acids and esters thereof |
| 09/12/2013 | WO2013133362A1 Catalyst for synthesis of oxygenated product, apparatus for producing oxygenated product and method for producing oxygenated product |
| 09/12/2013 | WO2013132507A1 An integrated process for the recovery of metal catalysts during the manufacture of purified terephthalic acid |
| 09/12/2013 | US20130237724 PROCESS FOR PREPARING V-Ti-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS |
| 09/12/2013 | US20130237723 Fluorinated graphene oxide and preparation method thereof |
| 09/12/2013 | DE102007014914B4 Katalytisch hochwirksame Edelmetall-Carboxylat-Verbindungen von Ir, Ru, Rh, Pd, Pt und Au Highly catalytically active noble metal-carboxylate compounds of Ir, Ru, Rh, Pd, Pt and Au |
| 09/11/2013 | EP2636726A1 Cashew nutshell oil of improved stability |
| 09/11/2013 | EP2636664A1 Catalyst and production method for acrylic acid |
| 09/11/2013 | EP2636451A1 Oxide catalyst, process for production of oxide catalyst, process for production of unsaturated acid, and process for production of unsaturated nitrile |
| 09/11/2013 | CN203183713U Film-rising-type evaporator with rotational flow plate |
| 09/11/2013 | CN103298860A Purification of acetic acid product streams |
| 09/11/2013 | CN103298776A Crossflow type filtering operation method using ceramic filter |
| 09/11/2013 | CN103298547A Reactor and process for propane oxidation |
| 09/11/2013 | CN103298532A Distillation column and method for distilling acrylic acid |
| 09/11/2013 | CN103288819A Salt of crinum asiaticum novacine derivative |
| 09/11/2013 | CN103288648A N-octane amine oxalate and preparation method and application thereof |
| 09/11/2013 | CN103288647A N-nonane amine oxalate, and preparation method and application thereof |
| 09/11/2013 | CN103288633A Recycling method of 2-hydroxybenzoic acid-2-ethyl caprolactone production liquid waste |
| 09/11/2013 | CN103288632A Method for purifying crude trimesic acid |
| 09/11/2013 | CN103288631A Preparation method of benzoic acid |
| 09/11/2013 | CN103288630A Synthesizing method of Salvianic acid A sodium |
| 09/11/2013 | CN103288629A Method for preparing 1,3-acetone dicarboxylic acid diester and an intermediate thereof by using citric acid to catalyze oxidization of hydrogen peroxide |
| 09/11/2013 | CN103288628A Method for preparing 1,3-acetone dicarboxylic acid diester and intermediate thereof by oxidizing citric acid and hydrogen peroxide |
| 09/11/2013 | CN103288627A Method for preparing 12-hydroxy stearic acid through utilizing hydrogenerated castor oil as raw material |
| 09/11/2013 | CN103288626A Method for co-producing adipic acid and nitrocyclohexane |
| 09/11/2013 | CN103288625A Method for purifying mixed organic salts obtained by microbial fermentation production of 1, 3-propanediol |
| 09/11/2013 | CN103288624A Method for preparing chromium oxalate |
| 09/11/2013 | CN103288623A Method for preparing chromium butyrate |
| 09/11/2013 | CN103288622A Preparation method of chromium propionate |
| 09/11/2013 | CN103288621A System for automatically recycling acetic acid from ceramic leaching liquid waste |
| 09/11/2013 | CN103288620A Preparation method of chromium acetate |
| 09/11/2013 | CN103288592A Toluene oxidation method |
| 09/11/2013 | CN103285890A Cr-doped catalyst for preparing acrylic acid by catalytically oxidizing propane and preparation method of Cr-doped catalyst |
| 09/11/2013 | CN102584527B Method for utilizing coal and salt comprehensively |
| 09/11/2013 | CN102489327B Catalyst for acetic acid synthesis through methanol carbonylation and application method thereof |
| 09/11/2013 | CN102320954B Method for preparing ibuprofen with large crystal form |
| 09/11/2013 | CN102276378B Treatment method of fermentation broth |
| 09/11/2013 | CN102266795B Catalyst used for low water acetic acid synthetic technology and preparation and application method thereof |
| 09/11/2013 | CN102139197B Method for preparing modified micro granules |
| 09/11/2013 | CN102001935B Refining method of benzoic acid |
| 09/11/2013 | CN101605596B Method for leakage monitoring in a tube bundle reactor |
| 09/11/2013 | CN101486807B Metal soaps incorporated in rubber compositions and method for incorporating such soaps in rubber compositions |
| 09/10/2013 | US8530700 Process for producing acrylic acid |
| 09/10/2013 | US8530699 Process for production of (meth) acrylic acid |
| 09/10/2013 | US8530697 Method for the reactive vaporization of glycerol |
| 09/10/2013 | US8530696 Pump around reactor for production of acetic acid |
| 09/10/2013 | US8530695 Process for recovery of formic acid |
| 09/06/2013 | WO2013129909A1 Lubricant composition of matter and methods of preparation |
| 09/06/2013 | WO2013129908A1 Method for the production of polyols and uses thereof |
| 09/06/2013 | WO2013129907A1 Method for the production of esters and uses thereof |
| 09/06/2013 | CA2847233A1 Catalyst for c2 oxygenate synthesis, device for manufacturing c2 oxygenate, and method for manufacturing c2 oxygenate |
| 09/05/2013 | US20130231502 Process for the Preparation of Difluroacetic Acid |
| 09/05/2013 | US20130231497 Synthesis of Lactic Acid and Alkyl Lactate from Carbohydrate-Containing Materials |
| 09/05/2013 | US20130231494 Method of making fluorinated alkoxy carboxylic acids and precursors thereof |
| 09/05/2013 | US20130231485 Crystal of 6,7-unsaturated-7-carbamoyl morphinan derivative and method for producing the same |
| 09/05/2013 | US20130231478 Novel Intermediate for Preparing Tapentadol or Analogues Thereof |
| 09/05/2013 | US20130228332 Derivatives of tris(2-hydroxyphenyl)methanes, preparation thereof and use thereof for mineral oil production |
| 09/04/2013 | EP2634169A1 Crossflow type filtering operation method using ceramic filter |
| 09/04/2013 | EP2634168A1 Crossflow type filtering operation method using ceramic filter |
| 09/04/2013 | EP2632884A2 Method for producing sorbic anhydride and also use thereof as a preservative in foods |
| 09/04/2013 | CN103282339A Method for reducing equipment fouling in (meth)acrylic acid production process |
| 09/04/2013 | CN103282338A Method for producing formic acid by reacting carbon dioxide with hydrogen |
| 09/04/2013 | CN103282337A Processes for producing adipic acid from fermentation broths containing diammonium adipate |
| 09/04/2013 | CN103276433A Pure metal niobium sheet full-coloring method |
| 09/04/2013 | CN103274998A Preparation method of flupirtine maleate |
| 09/04/2013 | CN103274931A Solvent for separating carboxylic acid mixtures by extraction and rectification |
| 09/04/2013 | CN103274929A Preparation method of 2-trifluoromethyl benzoic acid |