Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
12/2005
12/08/2005WO2005115953A1 Process for producing (meth)acrolein or (meth)acrylic acid
12/08/2005WO2005115952A1 Process for producing (meth)acrolein or (meth)acrylic acid
12/08/2005WO2005115951A1 Process for producing (meth)acrylic acid or (meth)acrolein
12/08/2005WO2005115617A1 Catalyst mixer and catalyst mixing method
12/08/2005WO2005115616A1 Multi-layer catalyst for producing phthalic anhydride
12/08/2005WO2005115606A1 Reactor, reactor control system, and catalytic gas phase oxidation reaction method
12/08/2005WO2005115605A1 Method of maintaining multitubular reactor
12/08/2005US20050272953 Process for the preparation of monochloroacetic acid
12/08/2005US20050272952 Preparation of acrylic acid by heterogeneously catalyzed gas phase partial oxidation of at least one C3 hydrocarbon precursor compound
12/08/2005US20050272951 Process for the separation of the water produced in the catalytic oxidation of aromatic hydrocarbons to polycarboxylic aromatic acids
12/08/2005US20050272945 High shear process for making metallic esters
12/08/2005US20050272818 Novel process for producing Ibuprofen sodium dihydrate
12/08/2005US20050272135 Processs for production and purification of fermentation derived organic acids
12/08/2005US20050271772 blending calcium as calcium salt and anhydrous citric acid or citric acid monohydrate, melting the blended calcium salt and citric acid, in a low-water environment, to allow formation of the tricalcium citrate; dispersed in a food, in order to fortify the food with calcium
12/08/2005DE102004024807A1 Verfahren zur Herstellung von Phthalsäuredichlorid A process for preparing phthaloyl chloride
12/07/2005EP1602639A1 Process for production of perfluorodiacyl fluorides
12/07/2005EP1601680A2 Ferric organic compounds, uses thereof and methods of making same
12/07/2005EP1392635B1 Crystallization method for production of purified aromatic dicarboxylic acids
12/07/2005EP1296994B1 Ferrocenyl diphosphines and their use
12/07/2005EP1038524B1 L-threonate ferrous, as well as pharmaceutical composition and use for improving and treating human anemia thereof
12/07/2005CN1705629A Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
12/07/2005CN1705513A Catalyst for alpha, beta-unsaturated carboxylic acid production, process for producing the same, and process for producing alpha, beta-unsaturated carboxylic acid
12/07/2005CN1705512A Carbon intersticed metallic palladium, palladium catalyst and method for preparation thereof, and method for producing alpha, beta-unsaturated carboxylic acid
12/07/2005CN1704395A Method for producing 3,5-di-tert-butyl-4-hydroxybenzoic acid
12/07/2005CN1230412C Establishing method of dynamic model of liquid phase catalytic paraxylene oxidizing reaction
12/07/2005CN1230410C Continuous method for producing and purifying (meth) acrylic acid
12/07/2005CN1230409C Improved process for producing carboxylic acids
12/07/2005CN1230235C Method of crystallization
12/07/2005CA2507897A1 High shear process for making metallic esters
12/06/2005US6972342 liquid phase oxidation in solvent, purification/crystallization, drying, then cooling via heat exchanger ; improved packaging/storage stability
12/06/2005US6972094 Method of recovering fluorochemical surfactant
12/01/2005WO2005113479A1 Process f r the removal of catalytic metals and promoter metals from carbonylation process streams
12/01/2005WO2005113430A1 Concurrent sulfur dioxide oxidation process and its use in manufacture of tetrabromophthalic anhydride
12/01/2005WO2005113144A1 Process for producing catalyst for unsaturated carboxylic acid production
12/01/2005WO2005113140A1 Process for producing composite oxide and composite oxide catalyst
12/01/2005WO2005113139A1 Composite oxide catalyst and method for production thereof
12/01/2005WO2005113138A1 Antimony vanadium phosphate
12/01/2005WO2005113127A1 Method for the extended operation of a heterogeneous catalyzed gas phase partial oxidation of at least one organic compound
12/01/2005WO2005075402A9 Photo-detector array with charge pump and charge counter
12/01/2005US20050267313 Process for producing (meth)acrolein or (meth)acrylic acid
12/01/2005US20050267312 Process for producing (meth)acrolein or (meth)acrylic acid
12/01/2005US20050267311 Method for producing 3, 5-di-tert-butyl-4-hydroxybenzoic acid
12/01/2005US20050267309 Process for producing (meth)acrylic acid and (meth)acrylic esters
12/01/2005US20050267183 Selective estrogen receptor modulators
12/01/2005US20050267168 Pentanoic acid derivatives
12/01/2005US20050267167 Pentanoic acid derivatives
12/01/2005CA2566795A1 Process for the removal of catalytic metals and promoter metals from carbonylation process streams
11/2005
11/30/2005EP1600438A1 Processes for the production of optically active compounds having substituents at the 2-position
11/30/2005EP1600436A1 Method for producing 3,5-DI-TERT-BUTYL-4-hydroxybenzoic acid
11/30/2005EP1600435A1 Process for production of hydroxybenzoic acids
11/30/2005EP1599528A1 Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
11/30/2005EP1599440A2 Chemical process for the preparation of intermediates to obtain n-formyl hydroxylamine compounds
11/30/2005EP1599439A1 Method for preparing oxydiphthalic anhydrides using guanidinium salt as catalyst
11/30/2005EP1599438A1 Preparation of substituted phthalic anhydride, especially 4-chlorophtalic anhydride
11/30/2005EP1599437A1 Powdered overbased amorphous alkaline earth metal salts and processes for making
11/30/2005EP1599436A2 Method of preparing alpha, beta-difluoroacrylic compounds
11/30/2005EP1254098B1 Oxidation of alkyl aromatic compounds to aromatic acids in an aqueous medium
11/30/2005CN1703390A Preparation of acrylic acid
11/30/2005CN1703389A Process for the preparation of monochloroacetic acid
11/30/2005CN1229325C Method for preparing m-phthaloyl chloride in high purity
11/30/2005CN1229324C Extraction process of tanshin general phenolic acid and its prepn and use
11/30/2005CN1229322C Hydrogenation of phthalic acids
11/30/2005CN1229319C Method for preparing 4-hydroxybenzaldehyde and its derivatives
11/30/2005CN1229179C Method of separating imide compound
11/29/2005US6969776 Process for producing fluorinated ketone
11/29/2005US6969774 Method for producing methacrylic acid
11/29/2005US6968872 Process for recovering liquid chemical products in chemical production facility
11/29/2005CA2080545C Salts of hydrazones
11/24/2005WO2005111052A1 Method for producing iron (iii) gluconate complex
11/24/2005WO2005110963A1 (biphenyl-3-yl)-carboxylic acids and derivatives thereof and their use in therapy
11/24/2005WO2005110962A1 Process for producing adipic acid
11/24/2005WO2005110960A1 Process for producing (meth)acrolein or (meth)acrylic acid
11/24/2005WO2005110959A1 Process for producing (meth)acrylic acid or (meth)acrolein
11/24/2005WO2005110958A1 Oxidation reaction of alcohol using hydrogen peroxide and tungsten catalyst
11/24/2005WO2005110956A1 Process for producing (meth)acrolein or (meth)acrylic acid
11/24/2005WO2005110949A1 Handling device and producing system of easy-to-polymerize compound
11/24/2005WO2005110591A1 Pilot test method for multitubular reactor
11/24/2005US20050261523 Preparation of (METH) acrylic acid and (METH) acrylic esters
11/24/2005US20050261522 Process for the preparation of acrolein and/or acrylic acid
11/24/2005US20050261521 Sb2O3 of isometric system is used as at least a part of an antimony-supplying source compound to produce a composite oxide catalyst
11/24/2005US20050261520 Process for producing catalyst for production of unsaturated carboxylic acid
11/24/2005US20050261518 Method for refining 2,6-naphthalene dicarboxylic acid
11/24/2005US20050261517 Gas phase partial oxidation of at least one organic compound over a catalyst bed, in which, in order to counteract the deactivation of the catalyst bed, the working pressure in the gas phase is increased during time operation; producing acrolein and/or acrylic acid from propylene
11/24/2005US20050261516 solvent-free transesterification, fluorination
11/24/2005US20050261515 Use of polyalkenyl succinimides in acrylic acid production
11/24/2005US20050261511 Catalytic oxidation process
11/24/2005US20050261371 Administering valproic acid or salts to treat Alzheimer's disease, amyotrophic lateral sclerosis, multiple sclerosis, stroke, and other nervous system disorders
11/24/2005US20050261366 Tri(alkylcarboxylato)gallium (III) products and pharmaceutical compositions containing them
11/24/2005DE102004022135A1 Preparation of formic acid formates, useful e.g. for preservation of plant or animal materials, comprises supplying solutions of formic acid and formate to rectification column and recovering sump product
11/23/2005EP1598331A1 Process for the preparation of phthalic acid dichloride
11/23/2005EP1598112A2 Process for preparing a mixed metal oxide catalyst by vapor deposition
11/23/2005EP1598110A1 Structured oxidation catalysts
11/23/2005EP1597226A1 Process for preparing 3-hydroxycarboxylic acids
11/23/2005EP0665210B2 Process for producing acetic anhydride alone or both of acetic anhydride and acetic acid
11/23/2005CN1701087A Perdeuterated polyiimides, method for the production and use thereof in the form of transparent materials in the range of 2500-3500 cm-1
11/23/2005CN1701058A Method for preventing clogging of apparatus for handling (meth) acrylic acid and esters thereof
11/23/2005CN1700954A Method of producing catalyst for synthesizing unsaturated aldehyde and unsaturated carboxylic acid, catalyst produced by this method, and method of synthesizing unsaturated aldehyde and unsaturated ca
11/23/2005CN1699325A A process for the preparation of 2-chloro-3-(phenylmethoxy)propionic acid potassium salt
11/23/2005CN1698959A Structured oxidation catalysts
11/23/2005CN1228302C Bubble tower oxidation reaction unit for producing terephthalic acid