| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 11/20/2013 | CN103395796A Comprehensive utilization method of serpentine and device used by method |
| 11/20/2013 | CN103394347A Preparation method of high-activity palladium-carbon catalyst |
| 11/20/2013 | CN103394210A Supergravity device for reduced pressure distillation and application method |
| 11/20/2013 | CN103393736A Pharmaceutical composition for treating alzheimer disease and preparation method as well as application thereof |
| 11/20/2013 | CN102320953B Method for preparing natural alpha-linolenic acid from crude oil of idesia polycarpa var.vestita diels |
| 11/20/2013 | CN102311332B Method for producing succinic acid |
| 11/20/2013 | CN102276447B Naproxen hydrate crystal, preparation method thereof and medicinal composition containing naproxen hydrate crystal and sumatriptan |
| 11/20/2013 | CN102225890B Method for preparing battery-level ferrous oxalate for production of lithium iron phosphate material |
| 11/20/2013 | CN101870648B Method for recovering benzoic acid from PTA oxidation residue |
| 11/20/2013 | CN101848883B Process for producing methacrolein and/or methacrylic acid |
| 11/20/2013 | CN101679184B Process for producing a solution of diacid/diamine salts |
| 11/20/2013 | CN101643404B Primary crystallization novel process of film extracting itaconic acid |
| 11/19/2013 | US8586791 Method for producing (meth)acrylic anhydride, method for storing (meth)acrylic anhydride, and method for producing (meth)acrylate |
| 11/19/2013 | US8586789 Removing hydrocarbon impurities from acetic acid production intermediate |
| 11/19/2013 | US8586788 Method for producing of ultra-clean and high-purity electronic grade acetic acid |
| 11/19/2013 | US8586787 Process for producing (meth)acrylic acid |
| 11/19/2013 | US8586785 Process for producing catalyst for methacrylic acid production and process for producing methacrylic acid |
| 11/19/2013 | US8586761 Method for producing aminothiazole derivative and production intermediate |
| 11/19/2013 | US8586499 Method for producing catalyst for preparation of methacrylic acid and method for preparing methacrylic acid |
| 11/19/2013 | CA2734627C Processes for producing monoammonium succinate from fermentation broths containing diammonium succinate, monoammonium succinate and/or succinic acid, and conversion of monoammonium succinate to succinic acid |
| 11/14/2013 | WO2013167405A1 Process for the heterogeneously catalysed gas-phase partial oxidation of (meth)acrolein to (meth)acrylic acid |
| 11/14/2013 | US20130303801 Novel Glycerol Dehydration Catalyst and Production Method Therefor |
| 11/14/2013 | US20130303800 Process for producing acetic acid |
| 11/14/2013 | US20130303798 Process for synthesizing phenylacetic acid by carbonylation of toluene |
| 11/14/2013 | US20130303713 Process for the production of methacrylic acid and its derivatives and polymers produced therefrom |
| 11/14/2013 | DE102012224021A1 Ein Verfahren zur Synthese der Phenylessigsäure durch Carbonylierung von Toluol A method for synthesis of phenylacetic acid by the carbonylation of toluene |
| 11/13/2013 | EP2661322A1 Iron coordination polymers for adsorption of arsenate and phosphate |
| 11/13/2013 | CN103391916A Dehydroabietic acid derivative, method for producing same, and method for producing 12-carboxydehydroabietic acid derivative |
| 11/13/2013 | CN103391914A Method and apparatus for continuously recovering (meth)acrylic acids |
| 11/13/2013 | CN103387494A Method for preparing 2-hydroxy-4,5-dimethoxybenzoic acid |
| 11/13/2013 | CN103387493A Preparation method for chromium salicylate |
| 11/13/2013 | CN103387492A Outer circulation filtering and washover method for crude terephthalic acid |
| 11/13/2013 | CN103387491A Preparation method for chromic benzoate |
| 11/13/2013 | CN103387489A Preparation method of high pure crocin and geniposide |
| 11/13/2013 | CN103387488A Preparation method of square cobalt oxalate powder |
| 11/13/2013 | CN103387487A Method for producing calcium formate from industrial waste liquid |
| 11/13/2013 | CN103387300A Recovery method using membranes for terephthalic acid and sodium hydroxide from printing and dyeing alkali-reduced waste water |
| 11/13/2013 | CN103386323A Quality-improving and viscosity-reducing catalyst and preparation method thereof |
| 11/13/2013 | CN103386316A Catalyst for preparing acrylic acid and/or acrylate through catalyzing lactic acid or lactate to dehydrate and application thereof |
| 11/13/2013 | CN103386303A Hydrogenation catalyst and preparation method thereof |
| 11/13/2013 | CN102786441B Preparation method of rivastigmine, intermediates and preparation method of intermediates |
| 11/13/2013 | CN102583813B Recovery method for terephthalic acid in alkali deweighting wastewater as well as production method and application of terephthalic acid metal salt whisker |
| 11/13/2013 | CN102557822B Method for preparing urea peroxide containing organic titanium by recrystallization process |
| 11/13/2013 | CN102503805B Method for preparing 4-felbinac through rearrangement reaction |
| 11/13/2013 | CN102476993B Preparation method of sodium citrate |
| 11/13/2013 | CN102417445B Method for synthesizing succinic acid from maleic acid |
| 11/13/2013 | CN102391097B Recovery method for phase fractionation of acetic acid-water in ceramic leaching waste liquor |
| 11/13/2013 | CN102320958B Method and device for extracting hexahydrobenzoic acid from rearrangement reaction liquid |
| 11/13/2013 | CN102089439B Method for producing (1s,2r)-2-chloro-2-fluorocyclopropanecarboxylic acid |
| 11/13/2013 | CN102060693B Method for enriching and purifying ferulic acid in cimicifugae foetidae |
| 11/13/2013 | CN101898951B Process and reactor for the thermoneutral conversion of ethanol to acetic acid |
| 11/13/2013 | CN101679189B Novel reaction with a gold catalyst |
| 11/13/2013 | CN101589015B Method for the production of acrylic acid |
| 11/12/2013 | US8580988 Blown and stripped plant-based oils |
| 11/07/2013 | WO2013164852A1 A process for separating aryl carboxylic acids |
| 11/07/2013 | WO2013164367A1 Process for the production of artemisinin intermediates |
| 11/07/2013 | WO2013164216A1 Process for preparation of highly pure, non-yellowing (meth)acrylic acid |
| 11/07/2013 | WO2013163806A1 Process for preparation of highly pure, non-yellowing methacrylic acid |
| 11/07/2013 | US20130296616 Process for the manufacture of acetic acid |
| 11/07/2013 | US20130296604 Method of making and using nano-bimetallic catalyst to produce adipic acid |
| 11/07/2013 | US20130296602 Conversion of Methyl-2-Acetoxy Propionate to Methyl Acrylate and Acrylic Acid |
| 11/07/2013 | US20130296589 Synthesis of long-chain polyunsaturated fatty acids by recombinant cell |
| 11/07/2013 | US20130296573 System for Controlling the Reactivity of Boronic Acids |
| 11/06/2013 | EP2660236A1 Processes for production of iron methacrylate and hydroxyalkyl methacrylate |
| 11/06/2013 | EP2660235A1 Processes for production of acrylic acid and/or ester thereof and polymer of the acrylic acid and/or the ester |
| 11/06/2013 | EP2660234A1 Process for the production of artemisinin intermediates |
| 11/06/2013 | EP2660233A1 Novel alicyclic alcohol |
| 11/06/2013 | EP2658903A1 Purification of acetic acid product streams |
| 11/06/2013 | EP2658850A1 Process for the depolymerization of a furandicarboxylate containing polyester |
| 11/06/2013 | EP2658838A1 Method for reducing equipment fouling in (meth)acrylic acid production process |
| 11/06/2013 | EP2658837A2 Glycerides and fatty acid mixtures and methods of using same |
| 11/06/2013 | EP2658643A1 Reactor and process for propane oxidation |
| 11/06/2013 | CN203264721U Internal circulation reactor for synthesizing acrylic acid and acrylate by acetylene carbonylation process |
| 11/06/2013 | CN203264329U Crystallizer for separation of stearic acid and oleic acid |
| 11/06/2013 | CN103382414A Method for supercritical extraction of alpha-linolenic acid |
| 11/06/2013 | CN103382156A Decane amine oxalate and its preparation method and application |
| 11/06/2013 | CN103382151A Preparation method of iron-tartaric acid-sodium complex |
| 11/06/2013 | CN103382144A Alkyl aromatic alpha- halogenation method |
| 11/06/2013 | CN102887824B Method for preparing high-purity calcium gluconate by taking oyster shells as raw materials |
| 11/06/2013 | CN102389411B Application of gallic acid in preparation of phosphodiesterase inhibitor anti inflammatory medicine |
| 11/06/2013 | CN102351686B Lactic acid extraction and purification production method by methanol esterification-vacuum distillation hybrid method |
| 11/06/2013 | CN102344454B Wikstroemia indica (L.) C.A.Mey extract as well as preparation method and application thereof |
| 11/06/2013 | CN102329226B Method for separating and extracting 2-keto-D-gluconic acid |
| 11/06/2013 | CN102329224B Method for purifying dodecanedioic acid |
| 11/06/2013 | CN102329221B Method for preparing isostearic acid |
| 11/06/2013 | CN102325800B Polymerization inhibitor composition and method of inhibiting polymerization of distillable monomers |
| 11/06/2013 | CN102311336B Method for preparing anhydrous monosodium citrate |
| 11/06/2013 | CN102295497B Synthesis method of halogenated aromatic hydrocarbon compound with water as solvent |
| 11/06/2013 | CN102276445B Colloidal bismuth tartrate compound, medicaments thereof, preparation method thereof and application thereof |
| 11/06/2013 | CN102274708B Acetic acid chlorination reactor and acetic acid chlorination reaction process method |
| 11/06/2013 | CN102249891B Method for recovering and purifying phenylacetic acid |
| 11/06/2013 | CN102219670B Linear chain polyketone compounds and application thereof |
| 11/06/2013 | CN102070443B Method for enriching and purifying veratric acid in globeflower |
| 11/06/2013 | CN102050725B Method for preparing Alpha-keto-phenylalanine calcium |
| 11/06/2013 | CN102041152B Metal stearate lubricating agent and preparation method and application thereof |
| 11/06/2013 | CN101918349B Process for the preparation of diacerin |
| 11/06/2013 | CN101898089B Dehydration system |
| 11/06/2013 | CN101786952B Anthraquinone compound and preparation method and medical application of lysine salt thereof |
| 11/06/2013 | CN101397245B Method for purifying perflurooctanoic acid |
| 11/05/2013 | US8575389 Neutralization process |