Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › 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)
10/2012
10/31/2012CN102757348A Processing method of sodium citrate mother liquor
10/31/2012CN102757339A Improved preparation method of 4-(2-carboxybenzyloxy) phenylacetic acid
10/31/2012CN102757338A Fenofibric urethan, preparation method and application thereof
10/31/2012CN102757337A Method for preparing hydroxyphenylacetic acid
10/31/2012CN102757336A Preparation method of caffeic acid
10/31/2012CN102757335A Method for removing sulfate radical and calcium ion in lactic acid
10/31/2012CN102757334A Sodium phenylbutyrate type II crystal and preparation method thereof
10/31/2012CN102757333A Method for preparing hexanedioic acid by oxidizing cyclohexanol
10/31/2012CN102757332A Processing method of cyclohexane oxidation products
10/31/2012CN102757331A Method for producing formic acid and acetic acid in furfural wastewater by reaction distillation recovery two-step method
10/31/2012CN102757330A Method for oxidizing cellulose in subcritical water to prepare formic acid and acetic acid
10/31/2012CN102757329A Production method for synthesizing acetic acid through carbonylation
10/31/2012CN102755869A System for hydrolyzing polymaleic acid
10/31/2012CN101973951B Chiral D-oxazoline and application thereof
10/31/2012CN101704777B Method for removing trans isomers with double bond at 5,6-positions from prost compounds
10/31/2012CN101628870B Direct racemization method of (R)-(-)-alpha-isopropyl-4-chlorodiethylamine phenylacetate
10/31/2012CN101624342B Method and system for separating and filtering CTA in preparation of pure terephthalic acid
10/31/2012CN101513641B Resource treatment method for fine terephthalic acid waste residue
10/31/2012CN101460444B Novel carboxylic acid compound, use thereof, and process for producing the same
10/31/2012CN101460442B Method of replacing dispersion medium
10/31/2012CN101421220B Method of crystallization
10/31/2012CN101415496B Multiple-metal complex-containing compound and metal complex, and manufacture methods therefor, and exhaust gas purification catalyst manufacture method using the same
10/30/2012US8299300 Method for preparing difluoroacetic acid and salts thereof
10/30/2012US8299299 Process for separating acrylic acid present as a main constituent and glyoxal present as a by-product in a product gas mixture of a partial heterogeneously catalyzed gas phase oxidation of a C3 precursor compound of acrylic acid
10/30/2012US8299297 Process for the production of glycolic acid
10/30/2012US8299281 Process for making triglyceride plasticizer from crude glycerol
10/30/2012US8298985 Catalyst for dehydrogenating primary alcohols
10/26/2012WO2012143067A1 Method for producing unsaturated compounds
10/25/2012US20120271065 Method for recovering anionic fluorinated emulsifier
10/24/2012EP2513029A1 Carboxylation of terminal alkynes
10/24/2012EP2513027A1 Process for manufacturing acrolein and/or acrylic acid from glycerol
10/24/2012EP2513026A1 Method for manufacturing acrolein and/or acrylic acid from glycerol
10/24/2012CN102753699A Process for manufacturing lactic acid
10/24/2012CN102753514A Process for manufacturing succinic acid
10/24/2012CN102746947A Method for separating and purifying DHA (docosahexaenoic acid) and saturated fatty acid from schizochytrium limacinum oil
10/24/2012CN102746595A Method for preparing modified liquid metal soap thermal stabilizer through potassium ion characteristic doping
10/24/2012CN102746496A Oxygen absorbent and single-layer bottle oxygen-absorbing polyester material containing same
10/24/2012CN102746312A Preparation method of oxalate and acetate of 2-oxa-6-aza-spiro[3, 3]heptane
10/24/2012CN102746259A Labdane diterpenoid compounds, arborvitae seed extract, preparation method thereof and application thereof
10/24/2012CN102746160A Cinnamic acid derivative crystal and preparation method thereof
10/24/2012CN102746143A High-stereoselectivity synthetic method of L-peppermint carboxylic acid
10/24/2012CN102746142A Method for synthesis of 2-(2-(4-chlorphenyl)phenyl)acetic acid
10/24/2012CN102746141A Method for synthesizing beta-hydroxy propionic acid
10/24/2012CN102746140A Method for preparing adipic acid by oxidizing cyclohexanone
10/24/2012CN102746139A Method for recycling dibasic acid byproducts from adipic acid waste liquor
10/24/2012CN102746138A Method for preparing succinic acid by using ionic liquid to catalyze hydrolysis of dimethyl succinate
10/24/2012CN102746137A Method for producing medical glacial acetic acids by using industrial glacial acetic acids
10/24/2012CN102746136A Purification method for glacial acetic acid
10/24/2012CN102746135A Method for recovering acetic acid and water through azeotropic distillation in aromatic carboxylic acid production
10/24/2012CN102746134A Method for decreasing content of sodium chloride impurities in recovered sodium formate
10/24/2012CN102746133A Preparation method for tablet or granular phenoxy carboxylic acid original medicines
10/24/2012CN102746127A Method for preparing 1,6-adipaldehyde
10/24/2012CN102746111A Cosynthesis device and method of cyclohexanol, cyclohexanone and adipic acid in microchannels
10/24/2012CN101817743B Production process for extracting, separating and purifying shikimic acid from cedar needles
10/24/2012CN101774905B Method for preparing formic acid and acetic acid from carbon dioxide by using hydrothermal technology
10/24/2012CN101400638B Method for making carboxylic acids
10/24/2012CN101056837B Optimized liquid-phase oxidation
10/23/2012US8293941 Superabsorbent polymers and methods of making the same
10/23/2012US8293939 Methods for removing vicinal diols from lactic acid fermentation broth
10/23/2012US8293932 Process for extracting a substance or a substance group from a mixture
10/18/2012WO2012141076A1 Method for preparing catalyst for production of methacrylic acid
10/18/2012WO2012140276A2 Process for the preparation of 3-hydroxy-3-methylbutyric acid or its calcium salts
10/18/2012WO2012115356A3 Method for recovering acetic acid from reactor discharge gas in the oxidation process of an aromatic compound
10/18/2012WO2012055963A3 Method for producing sorbic anhydride and also use thereof as a preservative in foods
10/18/2012US20120264974 Process for the production of acetic acid
10/18/2012US20120264971 Process for the manufacture of acetic acid
10/18/2012US20120264956 Oxidative cleavage of unsaturated carboxylic acids
10/18/2012US20120264935 Synthesis of ligands for use in actinide extraction
10/17/2012EP2509968A1 Systems and methods for processing glycerol
10/17/2012CN102741211A Method for producing carboxylic acids having 1-3 carbon atoms from renewable resources
10/17/2012CN102741208A Process for producing acetic acid and dimethyl ether using a zeolite catalyst
10/17/2012CN102731446A Method for preparing gamma-butyrolactone and succinic acid through catalytic oxidation of tetrahydrofuran by 3-(thiazol-2-yl)-L-alanine transition metal complex
10/17/2012CN102731297A Method for preparing medium-purity terephthalic acid by gradual heating oxidation
10/17/2012CN102731295A Preparation method of DL-naproxen
10/17/2012CN102731294A Preparation method of sodium citrate
10/17/2012CN102731293A Method for synthesizing oleoyl chloride by triphosgene
10/17/2012CN102731292A Preparation method of levo-flurbiprofen
10/17/2012CN102731291A Synthesis of 6-acetylenic acid compound and its application in antifungal field
10/17/2012CN102731290A Method for extracting EPA and DHA from algae
10/17/2012CN102731289A Thickening process of coarse adipic acid
10/17/2012CN102731288A Method for separating high-purity succinic acid from fermentation broth
10/17/2012CN102731287A Refined monochloroacetic acid crystalline product complexometric extraction method
10/17/2012CN102731286A Method for producing fatty acid calcium salt from animal/plant fat and aliphatic acid
10/17/2012CN102731275A Method for preparing acrolein and/or acrylic acid used by glycerin dehydration reaction
10/17/2012CN102731234A CO (carbon monoxide)-promoted method for directly oxygenizing hydroxylated aromatic compound by molecular oxygen
10/17/2012CN102730894A Method for treating waste alkaline liquor produced in butanol and octanol production device
10/17/2012CN102728597A Method and apparatus used for separating and recovering PIA waste residue solvent
10/17/2012CN102728404A Preparation method for carbon-base solid sulfonic acid catalyst for hydrolysis
10/17/2012CN102728236A Coordination polymer membrane material, preparation method for same and application of same in membrane separation
10/17/2012CN102728118A System for removing active carbon in adipic acid solution and industrial production method
10/17/2012CN102093459B Penthorum chinense pursh extract and preparation method and application thereof
10/17/2012CN101979129B Tail gas green management process for use in oxidization of benzene homologues in air
10/17/2012CN101462941B Technique for preparing 10- bromodecanoic acid by one-step method
10/17/2012CN101434536B Method for preparing phthalandione by selective oxidation
10/16/2012CA2557742C Utilization of acetic acid reaction heat in other process plants
10/16/2012CA2556971C Control method for process of removing permanganate reducing compounds from methanol carbonylation process
10/11/2012WO2012136568A1 Method for removal of the cyclic diester of a 2-hydroxy alkanoic acid from a vapor
10/11/2012WO2012136353A1 Process for the manufacture of alpha, alpha-branched carboxylic acid vinyl esters
10/11/2012WO2012136221A1 Ortho-fluoro substituted compounds for the treatment of metabolic diseases
10/11/2012WO2012136121A1 Amino phenylpropanoid compound and use thereof for preparing immunosuppressant
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