Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
08/2012
08/22/2012CN102643193A Synthetic method for clove amide
08/22/2012CN102643192A Preparation method of methoxyphenylacetic acid
08/22/2012CN102643191A Heavy phase lactic acid processing technology
08/22/2012CN102643190A Method for comprehensively utilizing gulonic acid mother liquor
08/22/2012CN102643189A System and method for recovering perfluoro caprylic acid from tail gas
08/22/2012CN102643188A Method for preparing 5-bromovalerate
08/22/2012CN102643187A Production method of calcium acetate
08/22/2012CN102643040A Preparation method of retarder for concrete and equipment adopted by preparation method
08/22/2012CN102641746A Heteropolyacid modified catalyst, and preparation and catalyst catalytic hydrolysis reaction system thereof
08/22/2012CN102641712A Novel reaction kettle for producing methylamino avermectin benzoate
08/22/2012CN102641657A Method for strictly controlling discharge of ammonia-containing tail gas in the ammonium salt production and improving ammonium salt output using the tail gas
08/22/2012CN102641635A Liquid adsorption-type air filter, sodium gluconate production device and sodium gluconate production method
08/22/2012CN102153552B Two novel paliperidone drug eutectics and preparation method of the novel paliperidone drug eutectics
08/22/2012CN101790494B Process for production of alkali metal fluoride dispersion
08/22/2012CN101786949B Method for preparing 4-ethyl octanoic acid through microwave heating
08/22/2012CN101723825B Method for separating mixed methyl cyclohexane diacid
08/22/2012CN101648862B Production technology of zine gluconate
08/22/2012CN101591231B Extraction technology for ammonium oxalate of bombyx batryticatus
08/22/2012CN101306362B Catalyst for producing alpha, beta-unsaturated carboxylic acid and method for preparation thereof, and method for producing alpha, beta-unsaturated carboxylic acid
08/21/2012US8247607 Carbonylation process
08/21/2012US8247605 Method of replacing dispersion medium
08/21/2012US8247604 Method of replacing dispersion medium
08/21/2012US8247344 Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same
08/21/2012US8246790 Method for collecting (meth)acrylic acid and apparatus for collecting (meth)acrylic acid
08/21/2012CA2562392C Process for preparing carboxylic acids and derivatives thereof
08/21/2012CA2523704C Process for converting a hydrocarbon to an oxygenate or a nitrile
08/16/2012WO2012107758A1 A process for the production of (meth)acrylic acid and derivatives and polymers produced therefrom
08/16/2012WO2012107733A1 Process and rotary pressure filtration apparatus for slurry separation of aromatic carboxylic acids
08/16/2012WO2012081417A4 Acetic acid production method
08/16/2012US20120209028 Recovery of volatile carboxylic acids by a stripper-extractor system
08/16/2012US20120209026 Method for producing a carnosic acid-rich plant extract
08/16/2012US20120208740 Method for preparing a solid form of acetic acid and products thereof
08/16/2012US20120208732 Esters for use as a base stock and in lubricant applications
08/16/2012CA2825258A1 A process for the production of (meth)acrylic acid and derivatives and polymers produced therefrom
08/15/2012EP2485999A2 Catalytic hydrogenation of carboxyarylaldehyde and use thereof for purifying crude terephthalic acid
08/15/2012EP2220021B1 Process for the preparation of terephthalic acid
08/15/2012CN202379911U 5-chlorovaleryl chloride synthesizer
08/15/2012CN102639481A Method of preparing highly fluorinated carboxylic acids and their salts
08/15/2012CN102639479A Method for manufacturing acrolein and/or acrylic acid from glycerol
08/15/2012CN102639478A Process for manufacturing acrolein and/or acrylic acid from glycerol
08/15/2012CN102639238A Process for production of catalyst for use in production of methacrylic acid, and process for production of methacrylic acid
08/15/2012CN102639224A Tube bundle reactor for producing maleic acid anhydride
08/15/2012CN102634442A Device and method for biologically manufacturing succinic acid by continuous crystallization
08/15/2012CN102633792A Method for preparing epothilone D and B
08/15/2012CN102633630A Preparation method of high-purity terephthalic acid (TPA)
08/15/2012CN102633629A Synthesis method of shikimic acid
08/15/2012CN102633628A Method for extracting ferulic acid from wheat by-products
08/15/2012CN102633627A Solid-phase synthesis method for calcium citrate
08/15/2012CN102633626A Synthesis technology for 2, 4, 6-trimethylbenzene acetyl chloride
08/15/2012CN102633625A Preparation method of fluorocinnamic acid
08/15/2012CN102633624A Method for preparing methylcinnamic acid
08/15/2012CN102633623A Methylphenylacetic acid preparation method
08/15/2012CN102633622A Rodlike hydrous cupric oxalate serving as lithium ion battery cathode material and preparation method for same
08/15/2012CN102633621A Preparation method of positive long-chain carbon two-terminal acyl chloride
08/15/2012CN102633620A Method for producing stearoyl chloride and homologs thereof by liquid-phase phosgenation
08/15/2012CN102633619A Preparation method of 6-halo-caproic acid
08/15/2012CN102633618A Hydroxy acid titanium complexes promoting detoxification of halogenated organic matter-polluted soil by means of dehalogenation, as well as preparation and application thereof
08/15/2012CN102633617A Method for preparing organic zinc by means of calcium analysis reactive crystallization
08/15/2012CN102633583A Method of using oligonucleotide for chiral drug resolution
08/15/2012CN101973868B Sodium phenylbutyrate crystal I and preparation method thereof
08/15/2012CN101850260B Catalyst used in preparation of (methyl) acrylic aldehyde and (methyl) acrylic acid
08/15/2012CN101622067B Method for regenerating palladium-containing metal loaded catalyst, palladium-containing metal loaded catalyst and method for producing the same
08/15/2012CN101600678B Process for carbonylation of aliphatic alcohols and/or reactive derivatives thereof
08/15/2012CN101456809B Method for disaggregation of waste and old PET
08/15/2012CN101146754B Acetic acid production methods incorporating at least one metal salt as a catalyst stabilizer
08/15/2012CN101116039B Method of controlling acetic acid process
08/14/2012US8242318 Catalytic hydrogenation
08/14/2012US8242308 Process for producing acrylic acid
08/14/2012US8242306 Oxide catalyst, process for producing acrolein or acrylic acid and process for producing water-absorbent resin
08/14/2012US8242304 Process for production of isophthalic acid
08/14/2012US8242048 Oxidation catalyst and its preparation
08/14/2012US8242040 Process for the removal of corrosion metals from carbonylation catalyst solutions
08/14/2012CA2768112A1 Method for preparing a solid form of acetic acid and products thereof
08/14/2012CA2472021C Substituted methylene amide derivatives as modulators of protein tyrosine phosphatases (ptps)
08/09/2012WO2012105543A1 Mixed solution production device and mixed solution preparation method
08/09/2012WO2012105304A1 Method for producing unsaturated aldehyde and/or unsaturated carboxylic acid
08/09/2012WO2012103813A1 Danshensu and chuanxiongqin derivatives, process for preparation, and use thereof
08/09/2012WO2012103799A1 Substituted n-pentanamide compounds, preparation methods and uses thereof
08/09/2012US20120203032 Process for producing and purifying a concentrated lactic salt
08/09/2012US20120202994 Method for Carrying Out Chemical Reactions with the Aid of an Inductively Heated Heating Medium
08/09/2012US20120202986 System and method for gas reaction
08/09/2012US20120202965 Integrated Co-Production of Dicarboxylic Acids
08/09/2012US20120202900 Purification of acetic acid product streams
08/09/2012US20120198769 Catalyst-coated support, method for the production thereof, a reactor equipped therewith, and use thereof
08/08/2012EP2483226A1 Method for separating salified phenolic compounds
08/08/2012EP2222627B1 Method for preparing optionally substituted p-hydroxymandelic compounds and derivatives thereof
08/08/2012EP1611073B1 Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrolein
08/08/2012EP1471047B1 Process for producing dicarboxylic acid
08/08/2012CN202369523U Device for producing 12-hydroxystearic acid by using ricinoleic acid
08/08/2012CN202366702U Combined stirred reaction vessel for calcium gluconate
08/08/2012CN202366701U High-temperature reaction kettle for processing calcium gluconate
08/08/2012CN202366699U Reaction kettle for calcium gluconate
08/08/2012CN202366698U Decoloration tank for producing long-chain binary acid
08/08/2012CN202366697U Activated carbon size mixing equipment for producing long-chain dicarboxylic acid
08/08/2012CN202366509U L-lactic acid extracting and cleaning tower adopting water dissolving method
08/08/2012CN202366508U L-lactic acid solvent extractor
08/08/2012CN202366493U Caproic acid distilling still
08/08/2012CN1918103B Method for producing 2,5-dimethylphenyl acetic acid
08/08/2012CN102628003A Method for extracting purified alpha-linolenic acid from linseed oil
08/08/2012CN102627555A Preparation method of p-anisoyl chloride
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