| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568485000 | Oxy or peroxy containing reactant | 38 |
| 20080287714 | Industrial Process for Acetals Production in a Simulated Moving Bed Reactor - The present invention is an industrial process for the preparation of acetals using a simulated moving bed (SMB) reactor system to accomplish the conversion of reactants (aldehyde and alcohol) and simultaneously, the separation of the reaction products (acetal and water) by selective adsorption. The SMB reactor consists of a set of interconnected columns packed with an acid solid (or mixture of acid solids: catalysts and adsorbents) effective for catalyzing the reaction between aldehydes and alcohols and for separating the reaction products by selective adsorption of at least one product. In a general embodiment, this process involves (1) feeding a mixture of aldehydes and alcohols and a desorbent which is the alcohol, to a simulated moving bed reactor; (2) reacting aldehydes and alcohols to form acetals; and (3) removing from the simulated moving bed reactor two liquid streams, a first liquid stream comprising a solution of acetal in the desorbent (raffinate), a second liquid stream comprising the water formed and the desorbent (extract). | 11-20-2008 |
| 20130046114 | 1-Methoxyl-2, 6, 10-Trimethyl-1, 3, 5, 9-Undec-Tetraene, and Preparation Method and Uses thereof - The invention discloses an intermediate 1-methoxyl-2,6,10-trimethyl-1,3,5,9-undec-tetraene, and a preparation method and uses thereof. In the synthesis method for the current lycopene intermediate 2-pos double bond C-14 aldehyde (2,6,10-trimethyl-2,5,9-undecatriene-1-aldehyde), expensive methyl iodide, polluting dimethyl sulphide and dangerous strong base are needed, so that the method is hardly applied to industrial production. The invention provides a new compound 1-methoxyl-2,6,10-trimethyl-1,3,5,9-undec-tetraene, and pure 2-pos double bond C-14 aldehyde can be prepared by hydrolyzing and refining the compound. The synthetic route is simplified and the great suitability for industrial production is achieved. | 02-21-2013 |
| 20140088326 | DUAL CATALYST SYSTEM FOR THE SELF-CONDENSATION OF ALCOHOLS - Disclosed is a process for the production of higher aldehydes from lower alcohols using a two-stage vapor phase heterogeneous catalyst system. Ethanol feeds afford aldehydes such as butyraldehyde and crotonaldehyde while butanol feeds yield 2-ethylhexanal and 2-ethylhexenal. Higher product selectivities are obtained when the alcohol is first dehydrogenated in the upper catalyst stage followed by aldol condensation of the resulting lower aldehyde to a higher aldehyde. | 03-27-2014 |
| 20150344391 | METHOD FOR PRODUCING ALDEHYDE - Provided is a method for producing an aldehyde that provides a target aldehyde at a high conversion rate over an extended period of time. It is a method for producing an aldehyde comprising bringing a raw material gas containing a primary alcohol having 4 to 18 carbon atoms and water into contact with a dehydrogenation catalyst containing copper and iron so as to dehydrogenate the alcohol contained in the raw material gas, thereby obtaining an aldehyde, wherein the raw material gas has a water partial pressure of 0.2 kPa to 99 kPa. | 12-03-2015 |
| 568486000 | Polyoxy containing reactant | 22 |
| 20080319233 | Acrolein Preparation Method - The invention relates to a method for preparing acrolein from propylene, consisting of a first glycerol dehydration step preformed in the presence of a gas containing propylene and, more specifically, in the presence of the reaction gas originating from the propylene to acrolein oxidation step. The inventive method enables the use, in part, of renewable raw material, while increasing acrolein production. | 12-25-2008 |
| 20090118549 | Process for Production of Acrolein - There is provided a process for producing acrolein from glycerin, exhibiting a suppressed decrease in the yield of acrolein with time. In the process for producing acrolein by dehydrating glycerin in the presence of a catalyst containing a metal phosphate, one, or two or more, metal phosphates are used, which are selected from aluminum salts, zirconium salts, manganese salts, alkali metal salts (provided that the alkali metal is sodium, potassium, or cesium, and the ratio between the mole number (M) of the alkali metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 2.0 or lower), alkali earth metal salts (provided that the ratio between the mole number (M) of the alkali earth metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 1.0 or lower), and the like. | 05-07-2009 |
| 20090177015 | Production Method of Acrolein - The present invention has an object to provide a production method of acrolein capable of producing acrolein with suppressing the yield change with time. The production method of the invention is that glycerin is dehydrated under coexistence with a catalyst having crystalline metallosilicates containing at least one kind of T atoms and 15% by mass or less of a binder, and the Si atoms to T atoms ratio (Si/T) of the catalyst is 800 or less. | 07-09-2009 |
| 20100113838 | PROCESS FOR PRODUCING ACROLEIN - There is provided a process for producing acrolein, which makes it possible to obtain acrolein in high yield by dehydration of glycerin. Glycerin is allowed to coexist with a catalyst containing a rare earth metal salt crystal of phosphoric acid, thereby dehydrating the glycerin, wherein the crystal is obtained by calcining a solid which is formed by allowing a liquid containing water and a hydroxide of the rare earth metal and/or a dehydration condensate of the hydroxide to contain phosphate ions. | 05-06-2010 |
| 20100280276 | PROCESS FOR PREPARING 2-HYDROXYACETALS AND THE CORRESPONDING 2-HYDROXYALKANALS - What is described is a process for preparing 2-hydroxyacetals of the general formula in which R | 11-04-2010 |
| 20110112330 | CATALYST FOR PREPARING ACROLEIN OR ACRYLIC ACID BY DEHYDRATION REACTION OF GLYCERIN AND METHOD FOR PRODUCING THE SAME - Catalyst used in a process for preparing acrolein and acrylic acid at higher yield to convert glycerin to valuable other chemical raw materials. The glycerin dehydration catalyst consists mainly of a compound containing at least one element selected from Mo, W and V, in which protons in the heteropolyacid are exchanged at least partially with at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements. | 05-12-2011 |
| 20110160491 | PROCESS FOR MANUFACTURING ACROLEIN OR ACRYLIC ACID FROM GLYCERIN - The subject of the present invention is a process for preparing acrolein by dehydration of glycerin, characterized in that the dehydration is carried out in the presence of a catalyst comprising mainly a compound in which protons in a heteropolyacid are exchanged at least partially with at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements. The process according to the invention permits to obtain acrolein at higher yield. | 06-30-2011 |
| 20110319667 | REACTION PROCESS UTILIZING CRITICAL - In order to perform organic synthesis process through action with supercritical water and acid stably while suppressing a trouble caused by a by-product, a method and an apparatus are provided, including the following steps. Water is supplied to high-pressure pumps ( | 12-29-2011 |
| 20120095269 | METHOD AND DEVICE FOR SYNTHESIZING ACROLEIN - An object of the present invention is to provide an industrially applicable method for producing acrolein via treatment with supercritical water from glycerin obtained as a by-product during the process of biodiesel fuel production from waste animal/plant fat or oil with the use of an alkali catalyst. | 04-19-2012 |
| 20120302797 | PROCESS FOR MANUFACTURING ACROLEIN AND/OR ACRYLIC ACID FROM GLYCEROL - The present invention relates to the manufacture of bioresourced acrolein and bioresourced acrylic acid from glycerol as starting material and more particularly comes within the scope of a process for the manufacture of acrolein and acrylic acid according to which the reaction for the dehydration of glycerol to give acrolein is carried out and a stage of oxidizing a water-rich phase separated from the reaction mixture coming from this dehydration reaction is carried out, before it is recycled to the glycerol dehydration stage. This oxidation treatment prevents organic impurities from accumulating during the process, while minimizing the consumption of water and the discharge of polluted aqueous streams. | 11-29-2012 |
| 20130144086 | SYNTHETIC NAVEL ORANGEWORM PHEROMONE COMPOSITION AND METHODS RELATING TO PRODUCTION OF SAME - One or more embodiments of the invention are directed to the synthetic methods for making lepidopteran pheromones including navel orangeworm pheromones. The synthetic methods involve novel, efficient, and environmentally benign steps and procedures. | 06-06-2013 |
| 20130253227 | Multihydric Compound Dehydration Systems, Catalyst Compositions, and Methods - The present disclosure relates to facilities, systems, methods and/or catalysts for use in chemical production. In particular, the disclosure provides innovations relating to dehydration of multihydric compounds such as glycerol to form acrolein. Some of these innovations include continuous reaction systems as well as system parameters that allow for long term production. | 09-26-2013 |
| 20140005442 | INTERMEDIATE OF LYCOPENE AND PREPARATION METHOD OF INTERMEDIATE | 01-02-2014 |
| 20140206906 | SYNTHETIC NAVEL ORANGEWORM PHEROMONE COMPOSITION AND METHODS RELATING TO PRODUCTION OF SAME - One or more embodiments of the invention are directed to the synthetic methods for making lepidopteran pheromones including navel orangeworm pheromones. The synthetic methods involve novel, efficient, and environmentally benign steps and procedures. | 07-24-2014 |
| 20150141703 | Catalytic Reaction with Reverse-Flow Regeneration - The invention concerns a chemical reaction process performed in a reaction chamber ( | 05-21-2015 |
| 20150298105 | CATALYST FOR GLYCERIN DEHYDRATION, PREPARATION METHOD THEREOF, AND PREPARATION METHOD OF ACROLEIN - The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein, and more particularly, to a catalyst for glycerin dehydration which minimizes by-product formation during glycerin dehydration to improve acrolein selectivity and maintains high catalytic activity during reaction. | 10-22-2015 |
| 20150336087 | CATALYST FOR GLYCERIN DEHYDRATION, PREPARATION METHOD THEREOF, AND PREPARATION METHOD OF ACROLEIN (As Amended) - The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein, and more particularly, to a catalyst for glycerin dehydration which minimizes by-product formation to improve acrolein selectivity and maintains high catalytic activity during reaction. | 11-26-2015 |
| 20150343429 | METHOD FOR PRODUCING SATURATED ALDEHYDE FROM 1,2-ALKANEDIOL - Provided is a method that produces a saturated aldehyde from a 1,2-alkanediol in high yield. Disclosed is a method for producing a saturated aldehyde from a 1,2-alkanediol in the presence of a regular mesoporous material. | 12-03-2015 |
| 20150343430 | CATALYST FOR GLYCERIN DEHYDRATION, PREPARATION METHOD THEREOF, AND PREPARATION METHOD OF ACROLEIN - The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein. The catalyst for glycerin dehydration exhibits a high glycerin conversion ratio, minimizes by-product formation to improve acrolein selectivity, and also maintains high catalytic activity during reaction. | 12-03-2015 |
| 20160030929 | METHOD FOR PREPARING CATALYST FOR GLYCERIN DEHYDRATION, AND METHOD FOR PREPARING ACROLEIN - The present invention relates to a method for preparing a catalyst for glycerin dehydration, a catalyst for glycerin dehydration prepared thereby, and a method for preparing acrolein. More particularly, the catalyst for glycerin dehydration prepared by the preparation method is able to minimize by-product formation to improve acrolein selectivity and to maintain high catalytic activity during the reaction. | 02-04-2016 |
| 20160068457 | METHOD FOR PRODUCING LAVANDULAL - Provided is a method of producing lavandulal at a high yield by controlling formation of its isomer of lavandulal as a by-product. | 03-10-2016 |
| 20160107969 | METHOD FOR PRODUCING AN OMEGA-HALO-2-ALKYNAL - Provided is a method for industrially producing a conjugated Z-alken-yn-yl acetate such as Z-13-hexadecen-11-yn-yl acetate which is a sex pheromone component of a pine processionary moth, and an intermediate for the conjugated Z-alken-yn-yl acetate under mild conditions at a high yield. More specifically, provided is a method for producing a conjugated Z-alken-yn-yl acetate (5) comprising the steps of: reacting an ω-halo-2-alkynal (1) with an alkylidene triphenylphosphorane (3) through a Wittig reaction to obtain a conjugated Z-alken-yn-yl halide (4), and acetoxylating the conjugated Z-alken-yn-yl halide (4) into a conjugated Z-alken-yn-yl acetate (5). | 04-21-2016 |
| 568487000 | Methanol or ethanol reactant | 7 |
| 20090312581 | METHOD FOR DEHYDROGENATING ALCOHOLS - A method for dehydrogenating primary or secondary alcohols having 1 to 12 carbon atoms to give the corresponding aldehydes or ketones in which the alcohol is brought into contact with a catalytically active composition comprising an active component of the formula | 12-17-2009 |
| 20090326279 | Support for use in microchannel processing - The disclosed technology relates to an apparatus, comprising: at least one microchannel, the microchannel comprising at least one heat transfer wall; a porous thermally conductive support in the microchannel in contact with the heat transfer wall; a catalyst or a sorption medium supported by the porous support; and a heat source and/or heat sink in thermal contact with the heat transfer wall. | 12-31-2009 |
| 20100016640 | SHELL CATALYST, IN PARTICULAR FOR OXIDATION OF METHANOL TO FORMALDEHYDE, AND ALSO METHOD FOR PRODUCTION THEREOF - The invention relates to a coated catalyst, especially for oxidation of methanol to formaldehyde, which, on an inert, preferably essentially nonporous, support body, has at least one coating which comprises, before the removal of the organic fractions of components b) and c): (a) oxides, or precursor compounds convertible to the corresponding oxides, of molybdenum and iron, where the molar ratio of Mo:Fe is between 1:1 and 5:1, and optionally further metallic components or metal oxide components or precursor compounds convertible to the corresponding oxides, (b) at least one organic binder, preferably an aqueous dispersion of copolymers, especially selected from vinyl acetate/vinyl laurate, vinyl acetate/ethylene, vinyl acetate/acrylate, vinyl acetate/maleate, styrene/acrylate or mixtures thereof, and (c) at least one further component selected from the group consisting of SiO | 01-21-2010 |
| 20130211146 | CATALYTIC CONVERSION OF ALCOHOLS AND ALDEHYDES - The invention provides a process for preparing higher alcohols and/or aldehydes and also mixtures thereof by catalytic reaction of ethanol, the reaction taking place in the presence of at least one catalyst, the catalyst comprising an activated-carbon substrate which is provided with at least one metal, and more particularly has at least one metal dope. | 08-15-2013 |
| 20160185700 | METHYL-IODIDE-FREE CARBONYLATION OF AN ALCOHOL TO ITS HOMOLOGOUS ALDEHYDE AND/OR ALCOHOL - Disclosed is a process for the reductive carbonylation of a low molecular weight alcohol to produce the homologous aldehyde and/or alcohol. The process includes conducting the reaction to produce the aldehyde in the presence of a single component catalyst complex composed of cobalt, an onium cation and iodide in a ratio of 1:2:4 without additional promoters. A ruthenium co-catalyst is used in the production of the homologous alcohol. The reductive carbonylation reaction does not require an additional iodide promoter and produces a crude reductive carbonylation product substantially free of methyl iodide. | 06-30-2016 |
| 20160185701 | METHYL-IODIDE-FREE CARBONYLATION OF AN ALCOHOL TO ITS HOMOLOGOUS ALDEHYDE AND/OR ALCOHOL - Disclosed is a process for the reductive carbonylation of a low molecular weight alcohol to produce the homologous aldehyde and/or alcohol. The process includes conducting the reaction to produce the aldehyde in the presence of a catalyst complex composed of cobalt, an onium cation and iodide in a ratio of 1:2:4 with a phosphine ligand. A ruthenium co-catalyst is used in the production of the homologous alcohol. The reductive carbonylation reaction does not require an additional iodide promoter and produces a crude reductive carbonylation product substantially free of methyl iodide. | 06-30-2016 |
| 20160251292 | METHYL-IODIDE-FREE CARBONYLATION OF AN ALCOHOL TO ITS HOMOLOGOUS ALDEHYDE AND/OR ALCOHOL | 09-01-2016 |
| 568488000 | Halogen containing reactant | 1 |
| 20100099920 | SYNTHETIC NAVEL ORANGEWORM PHEROMONE COMPOSITION AND METHODS RELATING TO PRODUCTION OF SAME - One or more embodiments of the invention are directed to the synthetic methods for making lepidopteran pheromones including navel orangeworm pheromones. The synthetic methods involve novel, efficient, and environmentally benign steps and procedures. | 04-22-2010 |
| 568489000 | Ag, Au, Pd, Pt, Rh, Ir, Ru, or Os containing material utilized | 4 |
| 20110015446 | USE OF A SUPPORTED CATALYST CONTAINING PRECIOUS METAL FOR OXIDATIVE DEHYDROGENATION - The use of a supported noble metal catalyst obtainable by applying a sparingly soluble noble metal compound to a support from solution or suspension, and subsequently treating thermally, for preparing olefinically unsaturated carbonyl compounds. | 01-20-2011 |
| 20120277476 | Precious metal catalysts with low metal loading for oxidative dehydrogenations - A method of production of a catalyst that has 0.05-0.25 wt. % of precious metal, preferably for the oxidative dehydrogenation of olefinically unsaturated alcohols, comprising the following steps | 11-01-2012 |
| 20140243558 | NOVEL HYDROFORMYLATION PROCESS - The present invention relates to a process for producing 4-hydroxybutyraldehyde, characterized in that allyl alcohol dissolved in polar solvents is reacted with CO and H2 in the presence of a catalytic system which is formed from a rhodium complex and a cyclobutane ligand which contains at least two trans-coordinated 1,3-dialkylphenyl-phosphinomethyl groups, with the exclusion of catalysts which contain an aliphatic, araliphatic or cycloaliphatic phosphine as ligand. In which R | 08-28-2014 |
| 20140323770 | PROCESS FOR PREPARING 3-SUBSTITUTED 2-ALKENALS, IN PARTICULAR PRENAL - The present invention to a process for preparing 2-alkenals of the formula I | 10-30-2014 |
