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)
11/2005
11/10/2005CA2563454A1 Crth2 receptor antagonists
11/09/2005EP1593663A1 Process for the preparation of acrolein and/or acrylic acid
11/09/2005EP1272453B1 Method for the purification of a crude acrylic acid melt
11/09/2005EP1263707B1 Method for the synthesis of aliphatic carboxylic acids from aldehydes
11/09/2005EP1263706B1 Method for the synthesis of straight-chain aliphatic carboxylic acids from aldehydes
11/09/2005EP1250306B1 Method for cleaning off-gas flows
11/09/2005CN1694759A Plate type catalytic reaction oven
11/09/2005CN1226273C Microbial process for preparation of acetic acid as well as solvent for its extraction from fermentation liquid
11/09/2005CN1226268C Process and apparatus for preparing saturated carboxylic acids having one to four carbon atoms
11/09/2005CN1226267C Azeotropic distillation process
11/08/2005US6963018 Converting paraffins into olefins via dehydrogenation steps and the produced olefins into polyolefins via polymerization steps; integrate operations into a single process or vessel and utilize recycling of unreacted reactants
11/03/2005WO2005102971A1 Supported ruthenium nanoparticle catalyst for cis-dihydroxylation and oxidative cleavage of alkenes
11/03/2005WO2005080309A8 Stereoselective synthesis of a 4,4-disubstituted cyclohexanepropanoic acid
11/03/2005US20050245765 Partially hydrolyzing methyl formates with water; forming a formic acid/water stream; reacting the methyl formate stream with a base in the presence of water; distilling off methanol; and combining the formic acid and water stream with the formate and water stream
11/03/2005US20050245764 Process for producing optically active 2-substituted carboxylic acid
11/03/2005US20050245763 Method for recovering acrylic acid
11/03/2005US20050245762 Isolating chlorosuccinic acid by cooling to 10-20 degrees C. to effect precipitation, where the acid has been prepared by reacting a suspension of aspartic acid in demineralized water containing NaCl with NaNO2 and aqueous HCl; mother liquors from previous reactions may be used as partial substitutes
11/03/2005US20050245761 Single crystalline phase catalyst
11/03/2005US20050245750 Process for preparing 1,3-benzodioxole-2-spirocycloalkane derivative
11/03/2005US20050245602 Selective estrogen receptor modulators
11/02/2005EP1591437A2 Interleukin-1 and tumor necrosis factor-alpha modulators, syntheses of said modulators and methods of using said modulators
11/02/2005EP1591436A2 Process for preparing acid fluorides from acid chlorides
11/02/2005EP1591435A2 Method for preparing 2,6-Naphtalene dicarboxyclic acid
11/02/2005EP1591161A1 Method for producing metal oxide catalyst
11/02/2005EP1590313A1 A low water methanol carbonylation process for high acetic acid production and for water balance control
11/02/2005EP1590312A2 Bromine free tempo based catalyst system for oxidation of primary and secondary alcohols using naoci as an oxidant.
11/02/2005EP1578713A4 Method for preparing organic acid
11/02/2005EP1516624A9 Method of producing calcium gluconolactate, compositions, processes and uses of same
11/02/2005EP1358145B1 Modification of the catalytic system in an industrial process for making acetic and/or methyl acetate acid
11/02/2005EP1257524B1 A process for the preparation of salts of l-carnitine and alkanoyl l-carnitine with mucic acid
11/02/2005EP1216094B1 Group 4 metal promoted iridium carbonylation catalyst
11/02/2005EP1214144B1 Group 5 metal promoted iridium carbonylation catalyst
11/02/2005EP1210315B1 Disproportionation catalyst
11/02/2005EP1045823B1 Process for making certain benzoic acid compounds
11/02/2005CN1692094A Process for producing dicarboxylic acid
11/02/2005CN1692093A Process for producing high-purity terephthalic acid
11/02/2005CN1692092A Process for producing aromatic carboxylic acid
11/02/2005CN1225453C Integrated process for production of vinyl acetate
11/02/2005CN1225452C Prepn. of (+)-trans-chrysanthemic acid
11/02/2005CN1225451C Aliphatic acid metabolic imaging agent beta-methyl-15-parafluoro [18F] phenyl-pentadecanoic acid and synthesizing method thereof
11/02/2005CN1225450C Method for preparing conjugated linoleic acid
11/02/2005CN1225449C Method for producing acyl chlorides
11/02/2005CN1225448C Process for producing aliphatic aldehydic acid and/or aliphatic dicarboxylic acid and catalyst for production
11/02/2005CN1225447C Method for production of aromatic carboxylic acids
11/02/2005CN1225446C Process for preparing aromatic carboxylic acid
11/02/2005CN1225445C Method for carbonylation of lower alkyl alcohols
11/02/2005CN1225438C Oxidation for producing chain olefin and carboxylic acid
11/01/2005US6960693 Quaternary ammonium, phosphonium compound
11/01/2005US6960684 Production process for unsaturated aldehyde
11/01/2005US6960682 Transition metal catalyst, reaction promoter, anhydrous environment; produce novel acetyl anhydrides; these can be reacted with H2O or alcohols
11/01/2005US6960670 Azeotropic distillation to dehydrate a crude maleic acid-containing aqueous solution to produce maelic anhydride
11/01/2005CA2459351C Methods for treating deodorizer distillate
11/01/2005CA2130140C Two step oxidation process for the production of carboxylic acids such as azelaic acid from unsaturated substrates
10/2005
10/27/2005WO2005100295A1 Process for producing (meth)acrylic acid derivative
10/27/2005WO2005100294A1 Process for producing aromatic carboxylic acid
10/27/2005WO2005100293A1 Process for producing (meth)acrylic acid or (meth)acrolein
10/27/2005WO2005100290A1 Process for producing acrolein and/or acrylic acid
10/27/2005WO2005054168A3 A process for resolving, optionally substituted, mandelic acids by salt formation with a chiral base cyclic amide
10/27/2005US20050240057 Method for preparing indan-1,3-dicarboxylic acid
10/27/2005US20050240056 Method for preparing 2,6-naphthalene dicarboxylic acid
10/27/2005US20050240055 Minimizes solvent loss through solvent burn and minimizes formation of incomplete oxidation products such as 4-carboxybenzaldehyde; reducing the amount of solvent burn lowers operating costs in oxidation zone by allowing greater amount of solvent to be recovered and recycled
10/27/2005US20050240041 catalytic hydroxylation of palm based oleic acid with formic acid and hydrogen peroxide to produce 9,10-dihydroxystearic acid; fast preparation, use plant vegetable oils, less expensive and nontoxic; purification; non-irritant, and used in cosmetic products
10/27/2005US20050240040 Process for producing esters employing hydrolyzable catalysts
10/27/2005US20050240031 Oxidic catalyst for production of phthalic anhydride by oxidizing o-xylene, naphthalene, or mixtures thereof, which catalyst comprises from 2 to 15% by weight of vanadium, from 1 to 15% by weight of tin, from 70 to 97% by weight of titanium oxide and alkali metal oxides; high activity, high selectivity
10/27/2005US20050239973 Perdeuterated polyiimides, method for the production and use thereof in the form of transparent materials in the range of 2500-3500 cm-1
10/27/2005US20050239643 Structured oxidation catalysts
10/27/2005US20050238554 Sulfur-bearing residue treatment system
10/27/2005DE102004017150A1 Partial oxidation in gas phase of three and/or four carbon precursor compounds to (meth)acrolein and/or (meth)acrylic acid with particulate catalyst in reactor having cuboidal thermoplate modules, cylindrical shell, and sealing element(s)
10/26/2005EP1588999A2 Palm oil-based hydroxy fatty acids
10/26/2005EP1588998A1 A process for the preparation of 2-chloro-3-(phenylmethoxy)propionic acid potassium salt
10/26/2005EP1587617A1 Oxidation catalyst and its preparation
10/26/2005EP1587612A1 Tubular reactor for carrying out catalytic gas-phase reactions and method for operating said reactor
10/26/2005EP1349824B1 Method for increasing oxidation reactor production capacity
10/26/2005EP1259473B1 Method for producing chlorocarboxylic acid chlorides
10/26/2005CN1688533A Composition and method for preventing fouling in (meth)acrylic acid processes
10/26/2005CN1688530A Method for producing partial oxidation products and/or partial ammoxidation products of at least one olefinic hydrocarbon
10/26/2005CN1688389A Mixed metal oxide catalyst and process for production of acetic acid
10/26/2005CN1688379A Separation apparatus, reaction apparatus and method for producing aromatic carboxylic acid
10/26/2005CN1224606C Catalyst concentration and proportion controlling method for p-xylene oxidizing reaction
10/26/2005CN1224605C Hydrogenation process for benzoic acid
10/26/2005CN1224604C Hydrogenation process for benzoic acid
10/26/2005CN1224602C Method for preparing (methyl) acrylate anhydride
10/26/2005CN1224600C Method for reclaiming calcium oxalate from sewage comprising oxalic acid
10/26/2005CN1224599C Method for producing acetic acid
10/26/2005CN1224597C Process for the preparation of diol mixtures
10/25/2005US6958414 a portion of the reaction gas is brought from a low initial pressure to a higher final pressure by means of a radial compressor; radial compressor tolerates polymer deposits on rotor; acrylic acid from propane
10/25/2005US6958404 Method for the hydrogenation of maleic anhydride and related compounds in a fluid bed reactor
10/25/2005US6958373 Transformation of polymers to useful chemicals oxidation
10/20/2005WO2005097811A1 Phosphines, transition metal complexes containing the same as the ligand, and process for production of optically active carboxylic acids
10/20/2005WO2005097773A1 1,1’-(1,2-ethynediyl)bis-benzene derivatives as ptp 1-b inhibitors
10/20/2005WO2004062763A3 Method for making industrial chemicals
10/20/2005US20050234264 Reacting a diazonium salt of polyhalogenated aniline with acrylic acid in presence of palladium containing catalyst
10/20/2005US20050234261 Process for preparing cinnamic acids and alkyl esters thereof
10/20/2005US20050234260 supported metal catalyst can effect cis-dihydroxylation and oxidative cleavage of alkenes to give the respective cis-diols and carbonyl products
10/20/2005US20050234127 Long chain unsaturated oxygenated compounds and their use in the therapeutical, cosmetic and nutraceutical field
10/20/2005US20050232956 Method for separating saturated and unsaturated fatty acid esters and use of separated fatty acid esters
10/20/2005CA2560648A1 1,1'-(1,2-ethynediyl)bis-benzene derivatives as ptp 1-b inhibitors
10/19/2005EP1586569A1 Aryl ethynyl phthalic acid derivative and method for producing the same
10/19/2005EP1586377A2 Processes for preparing unsaturated carboxylic acids or their esters using modified mixed oxide catalysts
10/19/2005EP1585724A2 Method of reducing toxicity of retinoids
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