| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/13/2007 | WO2007102105A2 Method for preparing an organic amine-lactic acid complex |
| 09/13/2007 | WO2007007891A3 Process for producing carboxylic acid |
| 09/13/2007 | US20070213567 Process For Producing Acrolein And/Or Acrylic Acid |
| 09/13/2007 | US20070213558 Process for the preparation of hydroxy carboxylic acid |
| 09/13/2007 | US20070213557 Separator, reactor, and method for producing aromatic carboxylic acids |
| 09/13/2007 | US20070213555 Three-dimensional delimited regions (concentric shells) of phase A: is a silver-vanadium oxide bronze and phase B: a mixed based titanium dioxide and vanadium pentoxide phase; oxidation of aromatic or heteroaromatic gas to form aldehydes, acids and/or anhydrides |
| 09/13/2007 | CA2643687A1 Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system |
| 09/12/2007 | EP1832649A1 Method for treating wine-alcohol industry liquid discharges |
| 09/12/2007 | EP1832569A1 Method for producing acetic acid |
| 09/12/2007 | EP1831147A1 Method for producing phthalic anhydride |
| 09/12/2007 | EP1831146A1 Hydroxycarbonylation of aryl and vinyl bromides |
| 09/12/2007 | EP1831133A2 Method for the use of ý11c¨carbon monoxide in labeling synthesis of 11c-labelled acids by photo-induced free radical carbonylation |
| 09/12/2007 | EP1831132A2 Resolution of racemic organic acids with (1s, 4s)-4[3,4-dichlorophenyl]-1,2,3,4- tetrahydro-n-methyl-1-naphthaloneamine |
| 09/12/2007 | EP1830958A1 Process for transition metal-catalyzed asymmetric hydrogenation of acrylic acid derivatives, and a novel catalyst system for asymmetric transition metal catalysis |
| 09/12/2007 | EP1628763B1 Three-layered or four-layered catalyst systems for producing phthalic anhydride |
| 09/12/2007 | EP1453784B1 Production of ammonium salts of aromatic carboxylic acids |
| 09/12/2007 | CN101035752A Process for chemical recycling of post consumption poly (ethylene terephthalate) and equipment for chemical recycling of post consumption poly(ethylene terephthalate) |
| 09/12/2007 | CN101033190A Method of preparing adapalene |
| 09/12/2007 | CN101033189A Method of preparing calcium gluconate from mother liquid after gluconate delta-lactone crystallization |
| 09/12/2007 | CN101033188A Method of preparing punicic acid, its salt and ester |
| 09/12/2007 | CN101033187A Method of separating acetic acid and t-butyl acetate by azeotropic distillation and water washing combined method |
| 09/12/2007 | CN101033186A Cubic aluminum formate, gallium formate and preparing method |
| 09/12/2007 | CN101033185A Anhydrous hexagonal indium formate and preparing method |
| 09/12/2007 | CN101033184A Method of preparing boron lithium dioxalate complex salt |
| 09/12/2007 | CN101033183A Process for producing sodium formate from carbonic oxide in synthesis ammonia raw material gas |
| 09/12/2007 | CN100336793C Method for preparing diphenic acid |
| 09/11/2007 | US7268254 Preparation of (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed partial oxidation of C3 and/or C4 precursor compounds in a reactor having thermoplate modules |
| 09/11/2007 | US7268249 Reacting hydroquinone or a salt thereof with a S-2-halopropanoic acid or a salt thereof in the presence of a mild reducing agent |
| 09/11/2007 | US7268248 Bichlorinated compounds formed under with carboxy groupand elimation of water |
| 09/11/2007 | US7267832 Forming a reaction mixture by reacting a calcium compound with citric acid in an aqueous solution at a temperature of less than about 10 degrees C. to form a calcium citrate, spray drying at a temperature of less than about 10 degrees C. effective to provide the amorphous water-soluble calcium citrate |
| 09/07/2007 | WO2007099450A2 Process for the preparation of 2-nitro substituted benzoic acids |
| 09/07/2007 | WO2007099111A1 A hydrogenation process for the conversion of a carboxylic acid or an ester having a carbonyl group |
| 09/07/2007 | WO2007023173A8 A process for the conversion of furfuryl alcohol into levulinic acid or alkyl levulinate |
| 09/06/2007 | US20070208201 catalytic gas phase oxidation process; supplying propylene, propane, or isobutylene and a gas containing molecular oxygen to a reactor which contains a catalyst; good selectivity and a high yield |
| 09/06/2007 | US20070208200 Methods and apparatus for producing a low-moisture carboxylic acid wet cake |
| 09/06/2007 | US20070208199 Methods and apparatus for isolating carboxylic acid |
| 09/06/2007 | US20070208198 Methods and apparatus for isolating carboxylic acid |
| 09/06/2007 | US20070208197 Employs concentration section disposed before and/or after product isolation section which allows for oxidation byproducts to exit product isolation section with isolated carboxylic acid product and/or to be combined with isolated carboxylic acid product downstream of product isolation section |
| 09/06/2007 | US20070208196 Method and apparatus for drying carboxylic acid |
| 09/06/2007 | US20070208195 employs concentration section disposed before and/or after product isolation section which allows for oxidation byproducts to exit product isolation section with isolated carboxylic acid product and/or to be combined with isolated carboxylic acid product downstream of product isolation section |
| 09/06/2007 | US20070208194 Oxidation system with sidedraw secondary reactor |
| 09/06/2007 | US20070208193 Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system |
| 09/06/2007 | US20070208192 Including an optimized post-digestion cooling stage that provides a terephthalic acid product having enhanced purity, while minimizing costs associated with removing impurities from recycled solvent. |
| 09/06/2007 | US20070208191 Polycarboxylic acid production system employing enhanced multistage oxidative digestion |
| 09/06/2007 | US20070208190 dialkyl aromatic compound (e.g., para-xylene) is oxidized to produce a crude aromatic dicarboxylic acid (e.g., crude terephthalic acid), and the resulting crude aromatic dicarboxylic acid is thereafter subjected to purification and separation to produce a purified terephthalic acid |
| 09/06/2007 | US20070205153 Process to produce a post catalyst removal composition |
| 09/05/2007 | EP1829610A1 Novel catalyst |
| 09/05/2007 | EP1828095A1 A process for the hydrogenation of a lactone or of a carboxylic acid or an ester having a gamma-carbonyl group |
| 09/05/2007 | EP1828094A1 Process for producing acetic acid |
| 09/05/2007 | EP1828093A1 Process for the production of carbonylation products |
| 09/05/2007 | EP1828092A1 Process and intermediate compounds useful in the preparation of statins |
| 09/05/2007 | EP1827678A1 Method and apparatus for performing micro-scale chemical reactions |
| 09/05/2007 | CN101031538A Optimized purification production of terephthalic acid |
| 09/05/2007 | CN101031537A Method for the extractive purification of (meth) acrylic acid using a separating agent |
| 09/05/2007 | CN101031536A Purification of a distilled bottom product containing (meth) acrylic acid by means of a crystallization process |
| 09/05/2007 | CN101031535A Process for producing biphenyltetracarboxylic acid |
| 09/05/2007 | CN101031534A Method for producing pyruvic acid |
| 09/05/2007 | CN101029317A Technology for rapidly dissolving calcium citrin by potato slag |
| 09/05/2007 | CN100335456C Method for preparing acyclic beta keto ester |
| 09/05/2007 | CN100335455C Process for producing (meth)acrylic acid or (meth)acrolein |
| 09/04/2007 | US7265250 Method of producing unsaturated aldehyde and/or unsaturated fatty acid |
| 09/04/2007 | US7265242 Reacting with carbon monoxide in the presence of a source of palladium, rhodium and/or platinum and an unsymmetrical diphosphine, e.g., 9-(2-{[di(tert-butyl)phosphino]methyl}-2-propenyl)-9-phosphabicyclo[3.3.1]nonane |
| 09/04/2007 | US7265241 Method for purifying (meth)acrylic acid |
| 09/04/2007 | US7265240 With CO in the presence of a source of hydroxyl groups (water or an alcohol) and a catalyst obtained by combining a Group VIII metal or a compound thereof and a bidentate phosphine, e.g., tri(dibenzylideneacetone)di-palladium |
| 09/04/2007 | US7264184 Birch bark processing and the isolation of natural products from birch bark |
| 08/30/2007 | US20070203361 Versatile oxidation byproduct purge process |
| 08/30/2007 | US20070203360 Versatile oxidation byproduct purge process |
| 08/30/2007 | US20070203359 Versatile oxidation byproduct purge process |
| 08/30/2007 | US20070203251 Methods To Prepare Carbon-Isotope Labeled Organohalides With High Specific Radioactivity From Carbon-Isotope Monoxide |
| 08/30/2007 | US20070203243 Resolution of alpha-(phenoxy) phenylacetic acid derivatives |
| 08/30/2007 | US20070203022 Metal Oxide Catalyst And Method For The Preparation Thereof |
| 08/30/2007 | US20070202580 Synthesis of mono and di esters from biologically-produced 1,3-propanediol |
| 08/30/2007 | US20070202022 Multitubular chemical reactors and heat exchangers having turbulence-free, uniform fluid flow and suppression of hot spots; different flow rates according to axial positions even in one pass determined by a baffle structure; energy efficient; acrylic acid, acrolein frompropylene, propane |
| 08/30/2007 | US20070199238 Method for the production of fatty acid alkyl ester |
| 08/30/2007 | DE10232468B4 Verschwenkbare Deckelklappe für ein Fahrzeug Hinge-lid flap for a vehicle |
| 08/29/2007 | EP1825027A2 Process for the recovery of acids |
| 08/29/2007 | EP1824808A1 Process for purifying hydroxycarboxylic acid, process for producing cyclic ester, and process for producing polylhydroxycaboxylic acid |
| 08/29/2007 | EP1824596A1 Process and catalyst for the manuafacture of acetic acid |
| 08/29/2007 | CN101027274A Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid |
| 08/29/2007 | CN101024705A Method for producing cyclohexane dicarboxylic acids and the derivatives thereof |
| 08/29/2007 | CN101024704A Method for producing cyclohexane dicarboxylic acids and the derivatives thereof |
| 08/29/2007 | CN101024610A Preparation of electronic grade gallic acid by complexation-resin adsorption combined process |
| 08/29/2007 | CN101024609A Process for producing shikimic acid |
| 08/29/2007 | CN101024608A Process for preparing fumaric acid by spraying acid water to benzene anhydride oxidized tail gas |
| 08/29/2007 | CN101024607A Method for removing oil tar in process of synthesizing acetic anhydride by carboxy group using sieve-board type extraction tower with centrifugal agitation |
| 08/29/2007 | CN101024606A Method for centrifugally separating slurry containing aromatic carboxylic acid |
| 08/29/2007 | CN101024605A Method for preparing novel organic calcium using egg shell |
| 08/29/2007 | CN101024199A Methanol carbonylated primary aromatic amine N-pyridine ethyl derivative chelating rhodium catalyst |
| 08/29/2007 | CN100334382C Method of connecting pipelines |
| 08/29/2007 | CN100334060C Production of pyruvate from hydroxy-acetone in biomass pyrolytic water-phase product |
| 08/29/2007 | CN100334059C Liquid phase oxidation of halogenated ortho-xylenes |
| 08/29/2007 | CN100333831C Alkane oxidation catalyst, process for producing same, and process for producting oxygen-contg unsaturated compound |
| 08/28/2007 | US7262327 Recycling process for preparing sertraline |
| 08/28/2007 | US7262324 In a shell-and-tube heat exchanger; oxidation of acrolein to acrylic acid; by-product inhibition; catalytic vapor phase oxidation of unsaturated aldehyde containing gas mixture produced in first-stage reaction zone with oxygen is divided into two or more shell spaces by at least one partition |
| 08/28/2007 | US7262323 Mother liquor displacement for continuously converting slurry of a terephthalic acid crystals in acetic acid solvent; liquid phase oxidation of p-alkylbenzene; catalytic hydrogenation; sedimentaion to form high concentration zone in the column |
| 08/28/2007 | US7262322 Oxidation process for the production of carboxylic acids and alkenes |
| 08/28/2007 | US7262320 Process for production of 3,3-dimethyl-2-formylcyclopropanecarboxylic acid derivatives |
| 08/28/2007 | US7262256 Polycarboxylic acid mixture |
| 08/28/2007 | US7262148 Catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid, and process for its production |
| 08/23/2007 | WO2007094936A1 Process for decolorizing aromatic dicarboxylic acids |