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)
06/2012
06/07/2012WO2011160821A3 Organic salts and co-crystals of phenylbutyric acid
06/07/2012US20120142965 For preparing surface-reacted calcium carbonate and its use
06/07/2012US20120142962 Methods, processes, and systems for treating and purifying crude terephthalic acid and associated process streams
06/07/2012US20120142961 Method for producing a radiopharmaceutical
06/07/2012US20120142958 Chemical recycling of pla by hydrolysis
06/07/2012US20120142945 Recovery method of highly pure lactic acid and alkyl lactate
06/07/2012US20120137574 Systems and methods for harvesting algae
06/07/2012US20120137572 Processing biomass with a hydrogen source
06/06/2012EP2459510A1 Hydroxy fatty acid compounds and uses thereof for disease treatment and diagnosis
06/06/2012EP1966116B1 Method for the heterogeneously catalysed partial gas phase oxidation of propylene to form acrylic acid
06/06/2012EP1739071B1 Method for producing carboxylic acid compound
06/06/2012CN1821238B Method for improving the quality of crude oils and fats and recovery of minor components
06/06/2012CN102486631A Real-time optimization method of acid consumption of PTA oxidation reactor
06/06/2012CN102485771A Fatty alcohol polyoxypropylene polyoxyethylene ether carboxylate, preparation thereof and application thereof
06/06/2012CN102485722A Aliskiren, its intermediates and medicinal salt, as well as preparation method thereof
06/06/2012CN101774551B Alpha-TeO2 of micro structure and production method and application thereof
06/06/2012CN101748161B Succinic acid purification process through anaerobic fermentation
06/06/2012CN101623654B Application of N-hydroxy compound containing nitrogen aromatic ring in hydrocarbon oxidation
06/06/2012CN101421214B Process for hydroformylation of propylene
06/06/2012CN101410365B Process for producing carboxylic acid
06/05/2012US8193387 Process for producing an unsaturated carboxylic acid from an alkane
06/05/2012US8192589 Purification of aqueous solutions of organic acids
06/05/2012CA2476736C Process for the carbonylation of an ethylenically unsaturated compound and catalyst therefore
05/2012
05/31/2012WO2012071150A2 Production of aromatic carboxylic acids
05/31/2012WO2012070896A2 Synthetic method of enantiomerically pure 2,2'-dihydroxy-1,1'-binaphthyl-3-carboxylic acid
05/31/2012WO2012069813A1 A process for the production of methacrylic acid and its derivatives and polymers produced therefrom
05/31/2012WO2012069481A1 Catalyst shaped body for flow-conducting fixed-bed reactors
05/31/2012WO2012069423A1 Method for the preparation of naproxen chloride
05/31/2012WO2012069004A1 Synthesis and application of intermediate of tapentadol
05/31/2012CA2817641A1 A process for the production of methacrylic acid and its derivatives and polymers produced therefrom
05/30/2012EP2456746A1 Method for producing bioresourced acrylic acid from glycerol
05/30/2012EP2456745A2 Method for the production of decanecarboxylic acids
05/30/2012EP2456744A1 Method for preparing a halogenocetyl fluoride and the derivatives thereof
05/30/2012EP2456743A1 Method for producing bioresourced acrylic acid from glycerol
05/30/2012CN202257291U Device for controlling flowing of liquid in towers
05/30/2012CN202254642U Microwave drying and cooling equipment used in production of sodium gluconate
05/30/2012CN202246483U Continuous closed circulation system for mother liquid during the production of oxalate acid
05/30/2012CN202246482U Preparation device of acetyl chloride and amino trimethylene phosphonic acid coproduction
05/30/2012CN202246480U Device for recovering pentaerythritol in sodium formate raffinate
05/30/2012CN202246479U Separating purification and byproduct recovery device of crude glycerin
05/30/2012CN202238060U Carbonylation reaction kettle
05/30/2012CN202238059U Reaction kettle for oxidation synthesis process in industrial oxalic acid production
05/30/2012CN202238013U Gas distributor of reactor for low-pressure carbonyl synthesized acetate
05/30/2012CN202237993U Novel chlorine introducing tube for chlorination reaction of chloroacetic acid
05/30/2012CN202237976U High-temperature high-pressure solid material on-line feeding device
05/30/2012CN202237689U Tail gas purification system of mirabilite packaging position
05/30/2012CN202237491U Integrated equipment for filtering, washing and drying purified terephthalic acid
05/30/2012CN202237304U Continuous evaporating device for recovering sodium formate from pentaerythritol
05/30/2012CN1800170B Method of purifying dianhydrides
05/30/2012CN102482693A 用于分离和回收c4二羧酸的工艺 C4 for the separation and recovery process of the dicarboxylic acid
05/30/2012CN102482692A 用于分离和回收3-羟基丙酸的工艺 Process for the separation and recovery of 3-hydroxy-propionic acid
05/30/2012CN102482190A 锌簇 Zinc cluster
05/30/2012CN102482189A 从丙三醇制备生物来源化的丙烯酸的方法 Glycerol was prepared from a biological source of acrylic acid
05/30/2012CN102482187A 从丙三醇制备生物来源化的丙烯酸的方法 Glycerol was prepared from a biological source of acrylic acid
05/30/2012CN102482177A 对二甲苯和对苯二甲酸的碳水化合物途径 Paraxylene and terephthalic acid carbohydrate way
05/30/2012CN102477021A 一种双(4-偏苯三酸酐)乙二醇酯的制备方法 A bis (4-trimellitic anhydride) in the preparation of ethylene glycol
05/30/2012CN102477016A 他喷他多的中间体的合成与应用 Tapentadol intermediates Synthesis and Application
05/30/2012CN102476994A 精对苯二甲酸装置氧化单元粗对苯二甲酸的“过滤、洗涤、分离”的方法 PTA Oxidation Unit crude terephthalic acid "filtered, washed, separated" approach
05/30/2012CN102476993A 一种柠檬酸钠的制备方法 The preparation of one of sodium citrate,
05/30/2012CN102476991A 邻甲基苯乙酸的制备方法 Method for preparing ortho-methyl-phenylacetic acid
05/30/2012CN102476990A Method for extracting and refining long-chain dicarboxylic acid crude product
05/30/2012CN102476989A 一种基于全膜分离系统的丁二酸分离装置及方法 An apparatus and method for the membrane separation system based on the whole acid separation
05/30/2012CN102476988A 羧酸酐的制造方法 The method of producing a carboxylic acid anhydride
05/30/2012CN102476987A Method for refining long chain binary acid by combining ultrafiltration and liquid-liquid extraction
05/30/2012CN102476975A 一种镁和铝改性的钛硅分子筛催化氧化环酮的方法 A titanium silicalite catalyzed oxidation of magnesium and aluminum modified method of cyclic ketones
05/30/2012CN102476057A 用于丙烷氧化制丙烯酸反应的钼钒碲铌催化剂的制备方法 Preparation for propane oxidation reaction of acrylic acid, molybdenum, vanadium, niobium catalyst tellurium
05/30/2012CN102476051A Noble metal/TiO2-C catalyst and preparation method thereof
05/30/2012CN102039123B Terephthalic acid hydrofined catalyst and preparation method thereof
05/30/2012CN101986320B Modeling method for heterogeneous azeotropic rectification solvent dehydrating tower of industrial purified terephthalic acid (PTA) device
05/30/2012CN101890367B IPN load palladium metal catalyst, preparation method and application thereof in catalytic Heck coupling reaction
05/30/2012CN101584916B Method and apparatus for deflagration pressure attenuation
05/30/2012CN101565434B Spiro phosphine-oxazoline and preparation method and application thereof
05/30/2012CN101555239B Method for extracting vitamin C and 2-keto-L-gulonic acid from vitamin C mother liquor
05/30/2012CN101481293B Catalytic hydrolysis process for by-product methyl acetate of purified terephthalic acid production
05/30/2012CN101456804B Method for preparing semi-aromatic nylon salt
05/30/2012CN101314133B Process for trans-2-deneacetic acid catalytic hydrogenation for preparing hexanoic acid
05/30/2012CN101225042B Yacon diterpene acid compounds, medicine composition, preparation method and use in preparation of medicine treating diabetes mellitus
05/30/2012CN101081810B Purification method of propenoic acid produced by biology catalysis
05/29/2012US8188310 Process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound
05/29/2012US8188309 Process for preparing aromatic carboxylic acids
05/29/2012US8188020 Lubricating oil composition containing an alkali metal detergent
05/24/2012WO2012068429A2 Production of acetic acid with an increased production rate
05/24/2012WO2012034929A3 Method for producing acrylic acid from methanol and acetic acid
05/24/2012US20120130125 Method for preparing ammonium salts of fumaric or succinic acid
05/24/2012US20120130123 Production of acetic acid with an increased production rate
05/24/2012US20120130121 Process for the preparation of halogenated benzoic acid derivatives
05/24/2012US20120130108 Process for the preparation of oxidized phospholipids
05/24/2012US20120130100 Method for the production of lignoceric acid
05/24/2012US20120130097 Process for the preparation of cyclopropyl carboxylic acid esters and derivatives
05/24/2012CA2816898A1 Production of acetic acid with an increased production rate
05/23/2012EP2455360A1 Apparatus for replacing dispersion medium
05/23/2012EP1846804B1 Method of controlling acetic acid process
05/23/2012CN202223929U Falling-film crystallizer for reclaiming monochloroacetic acid in mother liquor of chloroacetic acid
05/23/2012CN1903821B Technology of producing sodium oxalate by continuous dehydrogenation of sodium formate and its equipment
05/23/2012CN102471214A 丙烯酸的析晶装置及使用其的丙烯酸的析晶方法 Acrylic acid crystallization apparatus and method for its use of the crystallization of acrylic acid
05/23/2012CN102471213A (甲基)丙烯酸的结晶装置和(甲基)丙烯酸的结晶方法 (Meth) acrylic acid in the crystallization device, and (meth) acrylic acid crystallization
05/23/2012CN102471212A (甲基)丙烯酸的制备方法 Preparation of (meth) acrylic acid
05/23/2012CN102471211A (甲基)丙烯酸的制备方法 Preparation of (meth) acrylic acid
05/23/2012CN102471210A 制备邻苯二甲酸/邻苯二甲酸酐的工艺及设备 Preparation of phthalate / phthalic anhydride technology and equipment
05/23/2012CN102471209A 通过具有增强的反应和闪蒸的羰基化进行的乙酸生产 With enhanced production of acetic acid by the reaction and the flash carbonylation carried out
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