| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 10/24/2007 | EP1846352A1 Method of producing unsaturated fatty acid |
| 10/24/2007 | EP1534671A4 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 10/24/2007 | CN200964388Y Preparation device for acetyl chloride cogeneration hydroxyl ethidene diphosphoric acid |
| 10/24/2007 | CN101061146A Method for producing water-absorbing polymers |
| 10/24/2007 | CN101060927A Use of titanium dioxide mixtures for producing catalysts |
| 10/24/2007 | CN101058538A Method of preparing aluminum citrate by clay mine |
| 10/24/2007 | CN101058537A Method of preparing acetic anhydride under rhodium catalyst |
| 10/24/2007 | CN101058536A Method of preparing ultramicro ferrous oxalate |
| 10/24/2007 | CN100344671C Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
| 10/24/2007 | CN100344602C Technological method of continuous extracting effective components in eucommia ulmoides kernel by super critical carbon dioxide |
| 10/24/2007 | CN100344601C High purity punicic acid production method |
| 10/24/2007 | CN100344600C Alkali decremental waste water terephthalic acid recovery device |
| 10/24/2007 | CN100344599C Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream |
| 10/23/2007 | US7285684 Solvent-crystallization imide compound with at least one solvent selected from hydrocarbon, chain ether and water, cooling |
| 10/23/2007 | US7285677 System and method for recovering CTA residues and purifying/regenerating catalyst |
| 10/23/2007 | US7285514 Method for preparing catalyst for partial oxidation of acrolein |
| 10/23/2007 | CA2326778C Production of unsaturated acids or esters thereof and catalysts therefor |
| 10/18/2007 | WO2007116906A1 Process for production of 5-phenylisophthalic acid |
| 10/18/2007 | WO2007116201A1 Process for the preparation of carboxylic acids and/or derivatives thereof |
| 10/18/2007 | WO2007116018A1 Catalyst system for preparing carboxylic acids and/or carboxylic anhydrides |
| 10/18/2007 | US20070244340 Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion |
| 10/18/2007 | US20070244339 Process for Preparing Amino Acids Using Amidocarbonylation Reaction |
| 10/18/2007 | US20070243591 Enzymatic modification in a continuously regenerated packed bed column |
| 10/18/2007 | DE102006017623A1 Verfahren einer heterogen katalysierten partiellen Dehydrierung wenigstens eines zu dehydrierenden Kohlenwasserstoffs Process of a heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to hydrogen |
| 10/18/2007 | CA2682778A1 System and method for converting biomass to ethanol via syngas |
| 10/18/2007 | CA2648176A1 Process for the preparation of carboxylic acids and/or derivatives thereof |
| 10/17/2007 | EP1844061A1 Metallocene-based phosphorus chiral phosphines |
| 10/17/2007 | EP1843846A1 Catalyst and method for preparing aromatic carboxylic acids |
| 10/17/2007 | EP1542958B1 Process for producing aromatic dicarboxylic acids under supercritical conditions |
| 10/17/2007 | EP1494986B1 Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation |
| 10/17/2007 | CN101056884A Peptide cyclisation |
| 10/17/2007 | CN101056839A Process for preparing aloe-emodin |
| 10/17/2007 | CN101056838A 优化的液相氧化 Optimized liquid phase oxidation |
| 10/17/2007 | CN101056837A 优化的液相氧化 Optimized liquid phase oxidation |
| 10/17/2007 | CN101056702A Optimized liquid-phase oxidation in a bubble column reactor |
| 10/17/2007 | CN101054346A Preparation method and use for a set of novel compound and composition thereof |
| 10/17/2007 | CN101054245A Method of separating and reclaiming fatty acid in water body by metal chelating resin sorbent |
| 10/17/2007 | CN101053841A Rhodium catalyst with organometallic lithium salts as ligand |
| 10/17/2007 | CN100343220C Technology of preparing hdyroxy acetic acid |
| 10/17/2007 | CN100343219C Method and device for producing oxalic acid and sodium nitrite |
| 10/17/2007 | CN100343218C Method for extracting omega 6 polyunsaturated fatty acid from plant seeds |
| 10/17/2007 | CN100342968C Catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid and process for producing the same |
| 10/17/2007 | CN100342951C Separation apparatus, reaction apparatus and method for producing aromatic carboxylic acid |
| 10/16/2007 | US7282605 N-allylcarboxamide derivative undergoes rearrangement reaction diastereoselectively in the presence of a base to give a 2-allylcarboxamide derivative, derivative is subjected to a carbamation reaction and solvolysis to give an optically active 2-allylcarboxylic acid ester, and ester is hydrolyzed |
| 10/16/2007 | US7282604 Method for the production of acrylic acid from propane, in the absence of molecular oxygen |
| 10/16/2007 | US7282151 Recovery of a metal catalyst from an oxidizer purge stream using a pressure filter; combining water with a mother liquor to recover the catalyst; and single stage solvent extraction to produce an extract stream of organic impurities and a raffinate stream of the metal catalyst. |
| 10/16/2007 | US7282150 Method of extracting and method of purifying an effective substance |
| 10/16/2007 | US7282118 Method for production of easily polymerizable substance and purification apparatus |
| 10/16/2007 | CA2229207C Recovery of caprolactam from nylon-6 scrap |
| 10/11/2007 | WO2007114223A1 Method for producing carboxylic acid compound |
| 10/11/2007 | WO2007113872A1 Recovery of aromatic dicarboxylic acids from waste polyester resin in the presence of a polyamide |
| 10/11/2007 | US20070238903 Palladium-Containing Catalyst and Method for Producing Same |
| 10/11/2007 | US20070238899 By recovering and purifying residual terephthalic acid present in the liquid phase of the initial oxidation slurry; two oxidation reactors, multiple zones for evaporation, displacement, crystallization, separation and hydrogenation; final composite product formed containing unhydrogenated acid particles |
| 10/11/2007 | US20070238898 Method for producing organic acid |
| 10/11/2007 | US20070238882 Process for Preparing Nitrooxy Esters, Nitrooxy Thioesters Nitrooxy Carbonates and Nitrooxy Thiocarbinates, Intermediates Useful in Said Process and Preparation Thereof |
| 10/11/2007 | US20070238721 Highly Selective Novel Amidation Method |
| 10/11/2007 | US20070238608 Catalyst compostion for the selective conversion of alkanes to unsaturated carboxylic acids, method of making and method of using thereof |
| 10/11/2007 | DE102006029320B3 Continuous preparation of unsaturated carboxylic acid anhydride comprises anhydrating aliphatic carboxylic acid anhydride with carboxylic acid in rectification column, recycling the non-reacted educt in reaction medium and collecting |
| 10/11/2007 | DE102006029318B3 Continuous preparation of unsaturated carboxylic acid anhydride comprises reacting a ketene with an unsaturated carboxylic acid in apparatus comprising reaction mediums, and collecting the anhydride from rectification column |
| 10/10/2007 | EP1842842A1 Method for producing organic acid |
| 10/10/2007 | EP1841724A1 Process for purification of aromatic carboxylic acids |
| 10/10/2007 | CN101052611A 优化的液相氧化 Optimized liquid phase oxidation |
| 10/10/2007 | CN101050176A Method for preparing 4 ¿C bromine 2,6 ¿C difluoro benzoic acid |
| 10/10/2007 | CN101050175A Method for recovering cupric oxalate and acid liquor from acidic etching waste solution |
| 10/10/2007 | CN101050174A Stagger joined metal, and generator of light wave electricity generation |
| 10/10/2007 | CN101050173A Method for producing potassium citrate through continuous condensing crystallizing, and apparatus for realizing the method |
| 10/10/2007 | CN101050172A Method for preparing conjugation linoleic acid by intermittent type microwave action |
| 10/10/2007 | CN101050171A Method for producing unsaturated fatty acid |
| 10/10/2007 | CN101050157A Method for preparing compound in biphenyl class |
| 10/10/2007 | CN101049571A Complex type molecular sieve catalysis, preparation method, and application in preparing crylic acid |
| 10/10/2007 | CN100341841C Process for producing acroleic acid |
| 10/10/2007 | CN100341840C Process for preparing alpha-Beta unsaturated carboxylic acid |
| 10/10/2007 | CN100341839C Method for extracting nervonic acid from acer truncatum buge oil |
| 10/10/2007 | CN100341838C Microporous catalyst and method for hydrogenating aromatic compounds |
| 10/10/2007 | CN100341837C Method for making carboxylic acids |
| 10/10/2007 | CN100341836C Low water methanol carbonylation process for high acetic acid production and for water balance control |
| 10/10/2007 | CN100341835C Cinnamic acid preparation method |
| 10/10/2007 | CN100341620C V-P-Si compound oxide catalyst presoma used for maleic anhydride produced by butane oxidation |
| 10/09/2007 | US7279598 Process for separating and recovering 3-hydroxypropionic acid and acrylic acid |
| 10/09/2007 | US7279563 Compounds for protecting hydroxyls and methods for their use |
| 10/09/2007 | US7279442 Process for producing catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid |
| 10/09/2007 | US7279076 Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance |
| 10/09/2007 | US7279075 Reducing polymer formation during purificatin of acrylic monomers; operating sieve trays at higher entrainment fraction |
| 10/09/2007 | CA2436939C Process for producing dicarboxylic acids |
| 10/09/2007 | CA2297724C Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters |
| 10/09/2007 | CA2204527C 2,2-dichloralkane-carboxylic acids, processes for their production and pharmaceutical agents containing these |
| 10/09/2007 | CA1341557C Novel triazole and imidazole compounds |
| 10/04/2007 | WO2007093702A3 Compound comprising the combination od a first phosphomolybdenum crystal phase and a second crystal phase, and use thereof as alkane oxidation catalyst |
| 10/04/2007 | WO2007092183A3 Process for the purification of a crude carboxylic acid slurry |
| 10/04/2007 | US20070232831 Separation of Citric Acid from Gluconic Acid in Fermentation Broth using a Weakly or Strongly Basic Anionic Exchange Resin Adsorbent |
| 10/04/2007 | US20070232828 Mixed oxide oxidation catalyst containing molybdenum, vanadium, niobium and silver; catalyst for use in a one step process for producing an unsaturated carboxylic acid, such as acrylic acid or methacrylic acid |
| 10/04/2007 | US20070232817 Production process of biodiesel from the esterification of free faty acids |
| 10/04/2007 | US20070232816 reacting vegetable oils and animal oils with polyhydric alcohol selected from glycerol, polyglycerol, pentaerythritol, ethylene glycol in presence of acid catalyst, to form epoxidized oil; for used in polyurethane production |
| 10/03/2007 | EP1840112A1 Process for the purification of lanthanide carboxylates |
| 10/03/2007 | EP1840096A1 Intermediate film of laminated safety glass with antiglare function and novel neodymium compound |
| 10/03/2007 | EP1838654A1 Process for the manufacture of substituted propionic acids |
| 10/03/2007 | EP1838439A1 Process for preparing aromatic carboxylic acids |
| 10/03/2007 | EP1838405A1 Method for producing phthalic anhydride that conforms to specifications |
| 10/03/2007 | EP1556461B1 Multiple riser reactor with centralized catalyst return |
| 10/03/2007 | EP1437377B1 Method for recycling pet bottle |