Class / Patent application number | Description | Number of patent applications / Date published |
562538000 | Of alcohol | 23 |
20090062564 | Method for Producing Methacrolein and/or Methacrylic Acid - The present invention relates to a method for producing methacrolein and/or methacrylic acid characterized in that the catalyst filling length of a dehydration catalyst layer is 3 to 20% of the catalyst filling length of an oxidation catalyst layer in a method where raw material gas containing gaseous t-butanol is supplied to a fixed-bed multitubular reactor having a dehydration catalyst layer and an oxidation catalyst layer in this order, from the entrance for raw material gas toward the exit, to produce methacrolein and/or methacrylic acid by dehydration reaction and catalytic gas phase oxidation reaction, and the present invention can increase the conventional yield of approximately 80% to 81 to 82% even when a reaction bath temperature is relatively low (approximately 355° C.). | 03-05-2009 |
20100010260 | PROCESS FOR PRODUCING ACRYLIC ACID - The present invention provides a process for producing acrylic acid from glycerin with a catalyst having a prolonged life. In the process for producing acrylic acid from glycerin, a molar ratio of oxygen to glycerin in a raw material gas is set to be not lower than 0.8 and not higher than 20. | 01-14-2010 |
20100130776 | PROCESS AND REACTOR FOR THE THERMONEUTRAL CONVERSION OF ETHANOL TO ACETIC ACID - A process and reactor for the production of acetic acid comprising the steps of: passing a feed stream containing ethanol and water together with a predetermined feed rate of an oxygen containing atmosphere in presence of one or more catalysts being active in simultaneous non-oxidative and oxidative conversion of ethanol to a product stream with acetic acid; recovering from the product stream a stream of acetic acid; optionally recovering reactive derivatives of acetic acid and recycling these to step (a). | 05-27-2010 |
20110124913 | METHOD FOR PRODUCING BIORESOURCED PROPIONIC ACID FROM GLYCEROL - The invention relates to a method for producing bioresourced propionic acid from glycerol. The invention also relates to a composition comprising more than 85 mass % of bioresourced propionic acid, and to the use of the propionic acid obtained from the method as a solvent, as a food preservative, for producing herbicide or for preparing vinyl propionate. | 05-26-2011 |
20120190890 | METHOD FOR PRODUCING BIORESOURCED ACRYLIC ACID FROM GLYCEROL - An aim of the present invention is to produce, from glycerol, a bioresourced acrylic acid, that is to say an acrylic acid essentially based on a carbon source of natural origin, corresponding to a degree of purity corresponding to the requirements of the users. | 07-26-2012 |
20120253067 | Catalyst System and Process for Converting Glycerol to Lactic Acid - A process for producing lactic acid from glycerol using a reaction mixture comprising glycerol, a dehydrogenation catalyst (preferably a copper-based catalyst), an alkaline component, and water. | 10-04-2012 |
20120296115 | METHOD FOR PRODUCING POLYOXYALKYLENE ALKYL ETHER CARBOXYLIC ACID AND SALT THEREOF - The present invention provides a method for producing polyoxyalkylene alkyl ether carboxylic acid and a salt thereof, including supplying polyoxyalkylene alkyl ether, oxygen, and water to a continuous stirred tank reactor containing a noble metal catalyst to oxidize the polyoxyalkylene alkyl ether with oxygen, in which the molar ratio of the salt of polyoxyalkylene alkyl ether carboxylic acid to the polyoxyalkylene alkyl ether in the continuous stirred tank reactor is controlled to 0.33 to 49. | 11-22-2012 |
20130035507 | PROCESS FOR PRODUCING FORMIC ACID BY HYDROTHERMAL OXIDATION REACTION WITH GLYCEROL AND THEIR EQUIPMENT - A process for producing formic acid by hydrothermal oxidation reaction with glycerol and their equipment, wherein glycerol and oxidant are subjected to a hydrothermal oxidation reaction, air, oxygen or H | 02-07-2013 |
20130310604 | Process For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid - There is provided a process for producing aerolein, acrylic acid, methacrolein, methacrylic acid in a safe and steady manner and in high yields, which avoids a phenomenon of occurrence of an abnormal reaction attributable to the fact that the temperature at a raw material gas outlet side becomes considerably higher than the temperature at a raw material gas inlet side, with regard to the temperature of a catalyst packed in a reaction tube at vapor-phase catalytic oxidation of propylene, isobutylene, or the like. | 11-21-2013 |
20140121408 | OXIDATIVE CATALYTIC PROCESS FOR THE SYNTHESIS OF LACTIC ACID - Current industrial processes for the production of lactic acid are fermentative, using lactic bacteria which require large volumes and create large quantities of liquid residue which need to be treated. Chemical literature also describes the use of reaction systems with homogeneous catalysis, which also pose problems which in turn impact our costs, owing to the increased requirements in terms of the control of the process and the type of reactor necessary. Therefore, the process used thus far, carried out in hydrogenolysis, isomerisation and oxidation are defective, owing to the significant formation of sub-products, mainly pyruvic acid and acetic acid and the low yield of lactic acid. | 05-01-2014 |
20140128632 | CATALYST FOR SINGLE STEP CONVERSION OF GLYCEROL TO ACRYLIC ACID AND PROCESS FOR THE PREPARATION THEREOF - The present invention provides a process and a solid catalyst for oxydehydration of glycerol to acrylic acid with H | 05-08-2014 |
20140148616 | PROCESSO CATALITICO OXIDATIVO PARA SINTESE DE ACIDO LATICO - Current industrial processes for the production of lactic acid are fermentative, using lactic bacteria which require large volumes and create large quantities of liquid residue which need to be treated. Chemical literature also describes the use of reaction systems with homogeneous catalysis, which also pose problems which in turn impact our costs, owing to the increased requirements in terms of the control of the process and the type of reactor necessary. Therefore, the process used thus far, carried out in hydrogenolysis, isomerisation and oxidation are defective, owing to the significant formation of sub-products, mainly pyruvic acid and acetic acid and the low yield of lactic acid. | 05-29-2014 |
20140155651 | LACTIC ACID DIRECT SYNTHESIS PROCESS - This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%. | 06-05-2014 |
20140256981 | CYCLOHEXANOL, METHOD FOR PRODUCING CYCLOHEXANOL, AND METHOD FOR PRODUCING ADIPIC ACID - A purified cyclohexanol of the present invention has a methylcyclopentanol concentration of 10 to 1000 ppm by weight and a cyclohexylcyclohexene isomer concentration of 15 to 500 ppm by weight. A method for producing cyclohexanol of the present invention comprises: Step 1 of producing a solution (I) containing cyclohexanol, methylcyclopentanol, and water by a hydration reaction of cyclohexene; Step 2 of separating the solution (I) into a water phase and an oil phase; Step 3 of obtaining a partially purified cyclohexanol containing methylcyclopentanol from the oil phase; and Step 4 of separating and removing methylcyclopentanol in the partially purified cyclohexanol so as to obtain a purified cyclohexanol having a methylcyclopentanol concentration of 10 to 1000 ppm by weight and a cyclohexylcyclohexene isomer concentration of 15 to 500 ppm by weight. | 09-11-2014 |
20140256982 | Production of Adipic Acid and Derivatives from Carbohydrate-Containing Materials - The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product. | 09-11-2014 |
20140288328 | SEPARATION TECHNIQUE, PHOTO-OXIDATION OF ORGANIC SUBSTRATES, AND PHOTO CATALYSTS - A method for photo-oxidising an organic substrate to form an organic product is disclosed comprising: a) mixing oxygen, a supercritical fluid, a photocatalyst, a liquid fluorous solvent and an organic substrate to form a mixture; and b) irradiating the mixture to form an organic product. Also disclosed is a method for separating a photocatalyst from an organic product comprising the steps of: a) providing a mixture comprising a supercritical fluid; an organic product; a fluorous solvent; a photocatalyst; and optionally an organic substrate and optionally oxygen; wherein the organic product, fluorous solvent, photocatalyst and optional organic substrate and optional oxygen are dissolved in the supercritical fluid; and b) reducing the pressure of the mixture to a pressure below the critical pressure of the supercritical fluid in order to form a gaseous phase. | 09-25-2014 |
20150094489 | METHOD FOR REACTING GLYCERIN TO FORM ORGANIC SALTS - The invention relates to a process for reacting glycerin wherein the glycerin is reacted at temperatures above 150° C. in an aqueous, liquid solution of Me hydroxide, wherein the concentration of the Me hydroxide is greater than the saturation concentration at room temperature, wherein Me is selected from the group consisting of alkali metals and alkaline earth metals and mixtures thereof, and said reaction affords at least one salt selected from the group consisting of formate, acetate, propionate, oxalate, lactate, butyrate, valerate, citrate, adipate, succinate, malate and carbonate and mixtures thereof and hydrogen gas (H | 04-02-2015 |
20150336870 | GLYCEROL CONVERSION BY HETEROGENEOUS CATALYSIS - A method for preparing lactic acid is described, having a step of converting glycerol in the presence of a platinum-based heterogeneous catalyst on a zirconia-based support, in basic medium under inert atmosphere. | 11-26-2015 |
20150361021 | HETEROGENEOUS CATALYST FOR PREPARING ACRYLIC ACID FROM ALLYL ALCOHOL, AND METHOD OF PREPARING ACRYLIC ACID FROM ALLYL ALCOHOL USING THE SAME - The present invention relates to a heterogeneous catalyst for preparing acrylic acid from allyl alcohol, and a method of preparing acrylic acid from allyl alcohol using the same. More particularly, the present invention relates to a method of preparing acrylic acid from allyl alcohol at a high yield by performing a liquid phase reaction in the presence of a heterogeneous catalyst including gold supported on a carrier. | 12-17-2015 |
20160130209 | METHOD FOR SYNTHESISING GLYCOLIC ACID - The invention relates to a method for synthesising glycolic acid or one of the salts thereof, including the following step: placing glycerol and an oxidising agent in contact with one another in a reaction medium in the presence of a silver-based catalyst on a substrate, said substrate including a material selected from the group consisting of CeO | 05-12-2016 |
562539000 | Caustic oxidant | 1 |
20160096170 | HETEROGENEOUS CATALYST FOR PRODUCTION OF 3-HYDROXYPROPIONIC ACID FROM ALLYL ALCOHOL, AND METHOD FOR PREPARATION OF 3-HYDROXYPROPIONIC ACID FROM ALLYL ALCOHOL USING THE SAME - Disclosed herein are a heterogeneous catalyst for the preparation of 3-hydroxypropionic acid (3-HPA) from allyl alcohol, and a method for the preparation of 3-HPA from allyl alcohol using the catalyst. In the presence of the heterogeneous catalyst containing gold on a carrier, a liquid-phase reaction is conducted to produce 3-HPA from allyl alcohol at high yield. | 04-07-2016 |
562540000 | Nitrogen containing oxidant | 2 |
20120184770 | METHODS OF PREPARING FLUORINATED CARBOXYLIC ACIDS AND THEIR SALTS - A method for preparing fluorinated carboxylic acids and theirs salts is described comprising subjecting a fluorinated alcohol of the general formula (A): A-CH | 07-19-2012 |
20140256983 | METHOD OF OXIDATION USING NITRIC ACID - A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device. The method eliminates issues of thermal control of the oxidation, release of nitrogen into the atmosphere, and post-reaction difficulties in the removal of nitric acid and inorganic nitrates. | 09-11-2014 |