| Entries |
| Document | Title | Date |
|---|
| 20080207947 | Use Of Docosahexaenoic Glycerides For The Treatment Of Tumorous Diseases - The present invention relates to the use of an oil enriched in docosahexaenoic acid, which is conjugated to triglyceride, for manufacturing a pharmaceutical composition for the treatment of a tumorous disease, said oil being enriched in a concentration of up to 70% by weight in relation to the total weight of said pharmaceutical composition, and said docosahexaenoic acid being in a percentage of at least 50% in relation to the total fatty acids in said oil. | 08-28-2008 |
| 20080228003 | METHOD FOR PRODUCING (METH) ACRYLIC ACID DERIVITIVE - The present invention provides a method for efficiently using an aqueous solution of (meth)acrylic acid at a low concentration formed in a production/storage step of (meth)acrylic acid. | 09-18-2008 |
| 20090005593 | Catalyst for production of acrylic acid and process for production of acrylic acid using this catalyst - An object of the present invention is to provide: a catalyst for production of acrylic acid which catalyst is so high active as to give a still higher selectivity of acrylic acid (which is the objective product) or a long-catalytic-life-time catalyst for production of acrylic acid which catalyst is so high active as to be able to give a high acrylic acid yield while suppressing the temperature rise of the oxidation reaction to a low one; and processes for production of acrylic acid using these catalysts. As a means of achieving this object, a catalyst according to the present invention for production of acrylic acid comprises an oxide and/or a composite oxide as an essential catalytic component, wherein the oxide and/or the composite oxide has a metal element composition shown by general formula (1): | 01-01-2009 |
| 20090012327 | METHOD FOR SYNTHESIZING T-BUTYL (METH)ACRYLATE - Disclosed is a method for synthesizing t-butyl (meth)acrylate at low cost. Specifically, disclosed is a method for synthesizing a carboxylic acid ester by performing an addition reaction between isobutylene and (meth)acrylic acid in the presence of an acidic catalyst. This method includes the steps of:
| 01-08-2009 |
| 20090143617 | METHOD FOR PREPARING (E3, Z5) -3,5-ALKADIENYL ACETATE - Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydrolyzing 5,5-diethoxy-(Z3)-3-pentenyl methoxymethyl ether in the presence of an acid to obtain 4-formyl-(E3)-butenyl methoxymethyl ether; reacting the 4-formyl-(E3)-butenyl methoxymethyl ether with alkylidene triphenylphosphorane in accordance with the Wittig reaction to obtain (E3,Z5)-3,5-alkadienyl methoxymethyl ether; and obtaining (E3,Z5)-3,5-alkadienyl acetate using the (E3,Z5)-3,5-alkadienyl methoxymethyl ether as a starting substance. | 06-04-2009 |
| 20090287019 | Process for producing an unsaturated carboxylic acid from an alkane - A one-step vapor phase oxidation process produces an unsaturated carboxylic acid, such as acrylic acid or methacrylic acid, from an alkane, such as propane or isobutane, with a mixed metal oxide catalyst and an excess of alkane relative to oxygen. The unreacted alkane and the byproduct alkene are recycled to the reaction zone without separation. Overall yield and productivity of the unsaturated carboxylic improves for such a process. An analogous method for the preparation of unsaturated nitrites is also disclosed. | 11-19-2009 |
| 20090299094 | PROCESS FOR PRODUCING ALPHA, BETA-UNSATURATED CARBOXYLIC ACID - Disclosed is a method for producing an α,β-unsaturated carboxylic acid by oxidizing an olefin or an α,β-unsaturated aldehyde in a liquid phase in the presence of a noble metal catalyst, which can ensure operational safety at the time of stopping the reaction and prevent deterioration of the noble metal catalyst. The method for producing the α,β-unsaturated carboxylic acid by an oxidation reaction in which the olefin or the α,β-unsaturated aldehyde is oxidized in the liquid phase in the presence of the noble metal catalyst in a reactor, includes a step of stopping the oxidation reaction by supplying an inert gas to the reactor. | 12-03-2009 |
| 20100130778 | METHOD FOR PRODUCING (METH)ACRYLIC ACID - The present invention provides a method for effectively preventing the precipitation related to manganese acetate in the pipe for sending a polymerization inhibitor and the like, and the polymerization of (meth)acrylic acid. A first method of the present invention for producing (meth)acrylic acid, characterized in comprising steps of: producing a (meth)acrylic acid-containing gas by catalytic vapor phase oxidation reaction; and obtaining a (meth)acrylic acid-containing fluid by providing the (meth)acrylic acid-containing gas into a condensation column or an absorption column; wherein manganese acetate is used as a polymerization inhibitor; manganese acetate is dissolved into a (meth)acrylic acid aqueous solution containing not more than 10% by mass of (meth)acrylic acid, and the like, to obtain a manganese acetate aqueous solution; and the manganese acetate aqueous solution is provided into the condensation column or the absorption column. | 05-27-2010 |
| 20100286443 | METHOD FOR PRODUCING (METH) ACRYLIC ACID - A method for producing (meth)acrylic acid relevant to the present invention has the step for producing (meth)acrylic acid-containing gas by subjecting raw material gas to a catalytic vapor phase oxidation reaction in a reactor for catalytic vapor phase oxidation; and the step for obtaining a (meth)acrylic acid solution by introducing (meth)acrylic acid-containing gas thus produced to an absorption tower and separating non-condensable gas from (meth)acrylic acid-containing gas, and it is an object to provide a method for obtaining a high concentration acrylic acid solution stably by controlling temperature of (meth)acrylic acid-containing gas just before being supplied to the absorption tower, regardless of temperature fluctuation of gas discharged from the reactor for catalytic vapor phase oxidation. | 11-11-2010 |
| 20100331572 | METHOD FOR PRODUCING METHACRYLIC ACID - The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention. | 12-30-2010 |
| 20110092734 | METHOD FOR THE PRODUCTION OF NANOCRYSTALLINE BISMUTH-MOLYBDENUM MIXED OXIDE - A method for the production of a nanocrystalline bismuth-molybdenum mixed oxide, the use of the bismuth-molybdenum mixed oxide as catalyst for chemical conversions, in particular for a conversion of propylene to acrolein and/or acrylic acid or of isobutylene to methacrolein and/or methacrylic acid, as well as a catalyst that contains the bismuth-molybdenum mixed oxide. | 04-21-2011 |
| 20110105790 | METHOD FOR THE PRODUCTION OF A NANOCRYSTALLINE MOLYBDENUM MIXED OXIDE - A method for the production of a nanocrystalline molybdenum mixed oxide, the use of the molybdenum mixed oxide as catalyst for chemical conversions, in particular for a conversion of acrolein to acrylic acid as well as a catalyst that contains the molybdenum mixed oxide. | 05-05-2011 |
| 20110160484 | Method of Inhibiting Polymerization and Fouling in Acrylic Acid and Acrylate Processes - The method of inhibiting the polymerization of a mono-ethylenically unsaturated carboxylic acid, anhydride, ester or neutralized or partially neutralized sail, e.g., an acrylic acid or ester, in an aqueous solution and in the presence of oxygen, the method comprising the step of mixing with the aqueous solution an inhibitor comprising (i) at least 50 ppm of an N-oxyl compound, e.g., 4-hydroxy-TEMPO, and (ii) a manganese ion, the N-oxyl compound and manganese ion present in a N-oxyl compound to manganese ion weight ratio of 50:1 to less than 100:1 based on the mono-ethylenically unsaturated carboxylic acid, anhydride, ester or salt, | 06-30-2011 |
| 20110178334 | FIXED-BED REACTOR AND PROCESS FOR PRODUCING ACRYLIC ACID USING THE REACTOR - The fixed-bed reactor of the present invention which solves the above problems is a fixed-bed reactor comprising: a first catalyst layer filled with a first catalyst for producing acrolein from propylene; a second catalyst layer filled with a second catalyst for producing acrylic acid from acrolein; and an inert substance layer provided between the first catalyst layer and the second catalyst layer, and filled with an inert substance of a cylindrical shape having a surrounding wall in which an opening is formed. The process for producing acrylic acid of the present invention is a process for producing acrylic acid comprising the step of producing acrylic acid from propylene by using the fixed-bed reactor of the present invention. According to the present invention, since the inert substance of a cylindrical shape having a surrounding wall in which an opening is formed is used as an inert substance, increase of a pressure loss can be drastically suppressed, degradation of the catalyst due to by-produced high-boiling substances and the like can be suppressed, and further the yield of acrylic acid can be enhanced, as compared with the case of using conventional inert substances. Accordingly, it is possible to produce acrylic acid at a high yield stably for a long period. | 07-21-2011 |
| 20120004460 | METHOD FOR PRODUCING METHACRYLIC ACID - The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention. | 01-05-2012 |
| 20120041231 | Process and Apparatus for Preparing Vinyl Acetate Monomer - The invention provides a process for preparing vinyl acetate monomer (VAM) by reacting ethylene with acetic acid and oxygen in a tube bundle reactor in a heterogeneously catalysed, continuous gas phase process, characterized in that a high-performance catalyst with a space-time yield of more than 700 g of VAM/l of catalyst×hour is used for catalysis, and in that the tube bundle reactor comprises tubes with a ratio of inner surface area to volume of ≧130 m | 02-16-2012 |
| 20120041232 | COMPOSITIONS AND METHODS FOR 3-HYDROXYPROPIONATE BIO-PRODUCTION FROM BIOMASS - Methods of obtaining mutant nucleic acid sequences that demonstrate elevated oxaloacetate α-decarboxylase activity are provided. Compositions, such as genetically modified microorganisms that comprise such mutant nucleic acid sequences, are described, as are methods to obtain the same. | 02-16-2012 |
| 20120071687 | PROCESS FOR PREPARING ACRYLIC ACID FROM ETHANOL AND FORMALDEHYDE - A process for preparing acrylic acid from ethanol and formaldehyde, in which, in a reaction zone A, the ethanol is partially oxidized to acetic acid in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and a formaldehyde source are used to obtain a reaction gas input mixture B which comprises acetic acid and formaldehyde and has the acetic acid in excess over the formaldehyde, and the formaldehyde present in reaction gas input mixture B is aldol-condensed with acetic acid present in reaction gas input mixture B to acrylic acid under heterogeneous catalysis in a reaction zone B, and unconverted acetic acid still present along-side the acrylic acid target product in the product gas mixture B obtained is removed therefrom, and the acetic acid removed is recycled into the production of reaction gas input mixture B. | 03-22-2012 |
| 20120142966 | SALTS OF RASAGILINE AND PHARMACEUTICAL PREPARATIONS THEREOF - The present invention relates to salts of rasagiline and pharmaceutical preparations thereof. The invention further provides a method of preparing the salts of rasagiline. | 06-07-2012 |
| 20130178652 | METHOD OF INHIBITING POLYMERIZATION AND FOULING IN ACRYLIC ACID AND ACRYLATE PROCESSES - The method of inhibiting the polymerization of a mono-ethylenically unsaturated carboxylic acid, anhydride, ester or neutralized or partially neutralized salt, e.g., an acrylic acid or ester, in an aqueous solution and in the presence of oxygen, the method comprising the step of mixing with the aqueous solution an inhibitor comprising (i) at least 50 ppm of an N-oxyl compound, e.g., 4-hydroxy-TEMPO, and (ii) a manganese ion, the N-oxyl compound and manganese ion present in a N-oxyl compound to manganese ion weight ratio of 50:1 to less than 100:1. based on the mono-ethylenically unsaturated carboxylic acid, anhydride, ester or salt. | 07-11-2013 |
| 20130281736 | SYNTHESIS OF PERETINOIN - The present invention relates to a new and improved synthesis of peretinoin. | 10-24-2013 |
| 20130289305 | PROCESS FOR PREPARING ACRYLIC ACID FROM ETHANOL AND FORMALDEHYDE - A process for preparing acrylic acid from ethanol and formaldehyde, in which, in a reaction zone A, the ethanol is partially oxidized to acetic acid in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and a formaldehyde source are used to obtain a reaction gas input mixture B which comprises acetic acid and formaldehyde and has the acetic acid in excess over the formaldehyde, and the formaldehyde present in reaction gas input mixture B is aldol-condensed with acetic acid present in reaction gas input mixture B to acrylic acid under heterogeneous catalysis in a reaction zone B, and unconverted acetic acid still present along-side the acrylic acid target product in the product gas mixture B obtained is removed therefrom, and the acetic acid removed is recycled into the production of reaction gas input mixture B. | 10-31-2013 |
| 20140051886 | PROCESS FOR PREPARING METHACRYLIC ACID - The present invention relates to a process for preparing methacrylic acid based on the hydrolysis of methacrylic esters. | 02-20-2014 |
| 20140058133 | PRODUCTION OF ACRYLIC ACID FROM A METHANE CONVERSION PROCESS - Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having acrylic acid. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to acrylic acid. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units. | 02-27-2014 |
| 20140107377 | Microorganisms And Methods For Producing Acrylate And Other Products From Propionyl-CoA - This invention relates to microorganisms that convert a carbon source to acrylate or other desirable products using propionyl-CoA as an intermediate. The invention provides genetically engineered microorganisms that carry out the conversion, as well as methods for producing acrylate by culturing the microorganisms. Also provided are microorganisms and methods for converting propionyl-CoA and propionate to 3-hydroxypropionyl-CoA, 3-hydroxypropionate (3-HP) and poly-3-hydroxypropionate. | 04-17-2014 |
| 20140135526 | COMPOSITIONS AND METHODS FOR 3-HYDROXYPROPIONATE BIO-PRODUCTION FROM BIOMASS - Methods of obtaining mutant nucleic acid sequences that demonstrate elevated oxaloacetate a-decarboxylase activity are provided. Compositions, such as genetically modified microorganisms that comprise such mutant nucleic acid sequences, are described, as are methods to obtain the same. | 05-15-2014 |
| 20150031911 | Post-Gilding of PD-AU-Coated Shell Catalysts - The invention relates to a method for producing a shell catalyst that is suitable for producing vinyl acetate monomer (VAM). The invention further relates to a shell catalyst that is obtainable by the method according to the invention and to the use of the shell catalyst according to the invention for producing VAM. | 01-29-2015 |
| 20150045583 | TRANSESTERIFICATION PROCESS - A transesterification process produces a (meth)acrylate ester product from a mixture comprising an alkyl(meth)acrylate reactant, an alcohol reactant, a catalyst, and a polymerization inhibitor. The mixture is subjected to reaction conditions sufficient to produce a product (meth)acrylate and a product alcohol, which are different than the reactants. | 02-12-2015 |
| 20150105586 | PRODUCTION OF ACRYLIC ACID FROM A METHANE CONVERSION PROCESS - Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having acrylic acid. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to acrylic acid. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units. | 04-16-2015 |
| 20150126777 | PROCESS FOR PREPARATION OF HIGHLY PURE, NON-YELLOWING METHACRYLIC ACID - This invention relates to a process of preparing highly pure, non-yellowing (meth)acrylic acid necessary for high-tech applications requiring long-tem color stability in the presence of amines. Process for the preparation of highly pure, non-yellowing (meth)acrylic acid comprising the steps: f) Condensation of a (meth)acrylic acid-containing gas phase obtained via a gas phase oxidation process of a C4-compound to generate an aqueous (meth)acrylic acid solution g) Separation of the (meth)acrylic acid from the aqueous (meth)acrylic acid solution to obtain crude (meth)acrylic acid h) Rectification of the crude (meth)acrylic acid to obtain pure (meth)acrylic acid via a sidestream outlet of the rectification column i) Treatment of the pure (meth)acrylic acid generated in step c) with an ion exchange resin j) Distillation of the (meth)acrylic acid generated in step d). | 05-07-2015 |
| 20150133687 | PROCESS FOR PREPARING AN UNSATURATED ALDEHYDE AND/OR AN UNSATURATED CARBOXYLIC ACID - An α,β-unsaturated aldehyde and/or an α,β-unsaturated carboxylic acid are prepared by gas phase oxidation of alkene with molecular oxygen over a fixed catalyst bed comprising a bed of hollow cylindrical shaped catalyst bodies having a multimetal oxide active composition. The fixed catalyst bed comprises at least three successive reaction zones; the highest local temperature in the fixed catalyst bed does not occur in the reaction zone closest to the reactor outlet; the highest local temperature in the fixed catalyst bed does not occur in the reaction zone closest to the reactor inlet; and the value WT=(ED−ID)/2 in the reaction zone in which the highest local temperature in the fixed catalyst bed occurs is lower than in the other reaction zones, in which ED is the external diameter and ID is the internal diameter of the shaped catalyst body. The yield of the products of value is enhanced in this way. | 05-14-2015 |
| 20150329462 | Purification Of Bio Based Acrylic Acid To Crude And Glacial Acrylic Acid - Processes for the purification of bio-based acrylic acid to crude and glacial acrylic acid are provided. The bio-based acrylic acid is produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof. The purification includes some or all of the following processes: extraction, drying, distillation, and melt crystallization. The produced glacial or crude acrylic acid contains hydroxypropionic, hydroxypropionic acid derivatives, or mixtures thereof as an impurity. | 11-19-2015 |
| 20150353463 | PROCESS FOR THE PREPARATION OF 4-METHYLPENT-3-EN-1-OL DERIVATIVES - The present invention concerns a process for the preparation with high selectivity of a compound of formula (I) by isomerization at room temperature of compound of formula (II) in the presence of a complex of formula [Ru(dienyl) | 12-10-2015 |
| 20160031789 | PROCESS FOR PREPARING ACRYLIC ACID FROM METHANOL AND ACETIC ACID - A process for preparing acrylic acid from methanol and acetic acid, comprising (i) contacting a gaseous stream S0 comprising methanol, oxygen and inert gas with an oxidation catalyst to obtain a gaseous stream S1 comprising formaldehyde and inert gas; (ii) removing at least a portion of the inert gas present in S1 from at least a portion of the formaldehyde present in S1 by absorbing this formaldehyde in an absorbent to obtain a gaseous stream S2 comprising the portion of the inert gas removed, and to obtain a stream S3 comprising absorbent and absorbate comprising formaldehyde; (iii) optionally removing a portion or the entirety of the absorbent present in stream S3, such that a stream S3a remains from stream S3, and producing a stream S4 from at least stream S3 or stream S3a and a stream S5 comprising acetic acid; and (iv) contacting stream S4 in gaseous form with an aldol condensation catalyst to obtain a gaseous stream S6 comprising acrylic acid. | 02-04-2016 |
| 20160090347 | PROCESS AND PLANT FOR RECOVERING ACRYLIC ACID - The present invention relates to the process for recovering acrylic acid, comprising the steps
| 03-31-2016 |
| 20160137590 | THERMAL CONVERSION VESSEL USED IN A PROCESS FOR AMIDIFICATION OF ACETONE CYANOHYDRIN - The invention relates to a thermal conversion vessel ( | 05-19-2016 |
