| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568470000 | Oxidation of organic compound utilizing gaseous oxygen | 16 |
| 568471000 | Organic hydroxy containing reactant | 9 |
| 20090069605 | Catalyst composition and producing process thereof for use in manufacturing methacrolein - A catalyst composition for use in manufacturing methacrolein by reacting with one of isobutene and t-butanol, the catalyst composition being represented by the formula of: x (Mo | 03-12-2009 |
| 20110004025 | METHOD FOR PRODUCING OLEFINICALLY UNSATURATED CARBONYL COMPOUNDS BY OXIDATIVE DEHYDROGENATION OF ALCOHOLS - A process for preparing olefinically unsaturated carbonyl compounds by oxidative dehydrogenation in an oxygenous atmosphere over a supported catalyst which comprises gold and optionally further noble metals at temperatures in the range from 50 to 240° C. | 01-06-2011 |
| 20110295041 | CATALYST FOR PRODUCING UNSATURATED ALDEHYDE BY OXIDATION OF LOWER OLEFIN AT HIGH SPACE VELOCITY - A method of preparing a catalyst for producing acrolein by oxidation of propylene at high space velocity, said catalyst is a Mo—Bi—Fe—Co based composite metal oxide. Producing unsaturated aldehyde via partial oxidation of lower unsaturated olefin at high space velocity using said catalyst is suitable for process with or without off-gas recirculating. Said catalyst is prepared by co-precipitation, the reaction conditions for using said catalyst to produce unsaturated aldehyde are, the space velocity of unsaturated lower olefin relative to catalyst being 120˜200 h-1(STP), reaction temperature being 300˜420° C. and absolute pressure being 0.1˜0.5 MPa; a single-stage unsaturated lower olefin conversion ratio of greater than 98.0% and carbon oxide yield of less than 3.3% with an overall yield of unsaturated lower aldehyde and acid of greater than 94.0% are obtained. The process to prepare the said catalyst is simple, easy to be repeated, and capable of industrial scale-up. | 12-01-2011 |
| 20120277475 | BIO-BASED GLUTARALYDEHYDE, AND MANUFACTURE METHODS THEREOF - The present invention relates to a bio-based glutaraldehyde compound and to the different non-fossil, natural raw material manufacture methods thereof. To prepare said compound, glycerol created by the methanolysis of vegetable oil or animal fat is used, leading after dehydration to acrolein that is caused to react with a vinyl/alkyl/ether as per a Diels-Alder cyclization reaction, followed by hydrolysis so as to obtain the bio-based glutaraldehyde of the invention. Sugars containing five carbon atoms, that is, pentoses created from for example hemicellulose, may also be used, leading after dehydration to furfural, which leads, after complete hydrogenation followed by selective oxidation, to the bio-based glutaraldehyde of the invention. | 11-01-2012 |
| 20160052851 | A METAL-DOPED HYDROXYAPATITE CATALYST - The present invention provides the use of a metal-doped hydroxyapatite catalyst for highly selective conversion of an alcohol to an aldehyde at low temperatures. More specifically, the invention provides the use of a silver-doped hydroxyapatite catalyst for the highly selective oxidative dehydrogenation of ethanol to acetaldehyde. The present invention also provides the method for converting ethanol to acetaldehyde using a silver-doped hydroxyapatite catalyst. | 02-25-2016 |
| 20160185698 | Methods for Preparing Methacrolein from t-Butanol - A method for preparing methacrolein from t-butanol, specifically a method for preparing methacrolein by using t-butanol as a starting material, is disclosed, comprising passing the starting material through a fixed bed reactor filled with catalyst, wherein the fixed bed reactor is divided to n reaction zones from the inlet of the starting material to the outlet of the starting material and each zone is filled with catalysts of different catalytic activities; wherein the catalytic activity of the catalyst in the first reaction zone is higher than the catalytic activity of the catalyst in the second reaction zone, and the catalytic activity of the catalyst is gradually increased from the second reaction zone to the last reaction zone; and n is an integer between 3 to 10. | 06-30-2016 |
| 568472000 | Methanol reactant | 3 |
| 20100267993 | MICROCHANNEL APPARATUS COMPRISING STRUCTURED WALLS, CHEMICAL PROCESSES, METHODS OF MAKING FORMALDEHYDE - Methods for controlling series or series-parallel reactions are described. Novel microchannel apparatus having mesoporous structures adjacent to bulk flow paths are described. Methods of synthesizing formaldehyde from methanol are also described. | 10-21-2010 |
| 568474000 | Molybdenum containing catalyst utilized | 2 |
| 20110269998 | PROCESS FOR OXIDATION ON FIXED CATALYTIC BED OF METHANOL TO FORMALDEHYDE - A process for the fixed bed oxidation of methanol to formaldehyde wherein the bed comprises at least two layers having different catalytic activity, wherein the layer of lower activity is comprised in the part of the bed from which the reactant gas mixture enters and its activity is calibrated so that the maximum hot spot temperature in the layer is comprised between 350° C. and 430° C. and is higher than the maximum hot spot temperature of the layer of greater activity formed by pure catalyst, and wherein during the period in which the situation of the maximum hot spot temperature of the layer of lower activity remains at the values cited above, the conversion of methanol is higher than 96% by mols. | 11-03-2011 |
| 20130006019 | SPINEL STRUCTURED CATALYST FOR ALDEHYDE PRODUCTION - The present invention refers to a catalyst for aldehyde production, in particular formaldehyde or acetaldehyde production, through selective oxidation of alkanol, especially methanol or ethanol, with oxygen, said catalyst having a spinel structure. The catalyst typically comprises a Fe | 01-03-2013 |
| 568475000 | Acyclic hydrocarbon reactant | 7 |
| 568476000 | Carbon to carbon unsaturation in the reactant and in the aldehyde prepared | 5 |
| 20080234522 | Method for vapor phase catalytic oxidation - An object of the present invention is to provide a method for vapor phase catalytic oxidation which is almost free of variations in reaction states in respective reaction tubes of the fixed bed multi-tube heat-exchanger type reactor. | 09-25-2008 |
| 20090005605 | HIGH SHEAR PROCESS FOR THE PRODUCTION OF ACETALDEHYDE - A method of use for a high shear device incorporated into a process or system for the production of acetaldehyde from ethylene as a reactor device is shown to be capable of decreasing mass transfer limitations, by forming a feed stream emulsion, and thereby enhancing the acetaldehyde production process in the system. | 01-01-2009 |
| 20150353460 | METHOD FOR REMOVING ACROLEIN FROM THE PROCESS GAS OF A HETEROGENEOUSLY CATALYSED OXIDATION OF PROPENE - The invention relates to a process for separating acrolein from the process gas of a heterogeneously catalysed oxidation of propene by means of atmospheric oxygen, wherein high boilers (including acrylic acid) are firstly separated off from the process gas by means of quenching and technical-grade acrolein having small proportions of low boilers is then obtained by means of absorption and subsequent distillation. Small amounts of a solvent by means of which, in particular, oligomers formed are separated off and the tendency for foam to be formed in the apparatuses or columns is reduced is added in the columns and heat exchangers in the work-up process. The solvent is, according to the invention, separated off and recycled in the form of an organic phase in-situ within the existing process. | 12-10-2015 |
| 568477000 | Antimony or tin containing catalyst utilized | 1 |
| 20130231507 | HIGH MOLYBDENUM MIXED METAL OXIDE CATALYSTS FOR THE PRODUCTION OF UNSATURATED ALDEHYDES FROM OLEFINS - A catalyst for the oxidation of an olefin to an unsaturated aldehyde comprising a mixed metal oxide having the formula (I): | 09-05-2013 |
| 568479000 | Molybdenum containing catalyst utilized | 1 |
| 20110130596 | PROCESS FOR PREPARING (METH)ACROLEIN BY HETEROGENEOUSLY CATALYZED GAS PHASE PARTIAL OXIDATION - A process for preparing (meth)acrolein by heterogeneously catalyzed gas phase partial oxidation of a precursor compound, in which the reaction gas mixture which comprises at least 3% by volume of precursor compound is passed through a fresh fixed catalyst bed whose active material is a multielement oxide which comprises the elements Mo, Fe and Bi and at least one of the elements Ni and Co, and the fixed catalyst bed is loaded with at least 40 l (STP)/l·h of precursor compound, and the precursor compound is converted to an extent of at least 90 mol %, wherein, over the first 8000 operating hours, during X=10 to 500 operating hours, the highest temperature of the reaction gas mixture in the fixed catalyst bed is 400 to 450° C. and, during the remaining 8000−X operating hours, is 300 to <400° C., and the loading of the fixed catalyst bed with organic precursor compound, averaged over the time, for the X=10 to 500 operating hours is greater than for the 8000−X operating hours. | 06-02-2011 |
| 568482000 | Methane reactant | 2 |
| 20110105801 | FORMALDEHYDE SYNTHESIS - A process is disclosed for the synthesis of formaldehyde from methane starting with the oxychlorination of methane to produce methylene chloride. Hydrolysis of methylene chloride yields the product formaldehyde. Gaseous formaldehyde is condensed for shipment. Byproduct chloroform and carbon tetrachloride are recovered and hydrogenated to provide additional methylene chloride. | 05-05-2011 |
| 20150321179 | A COMPOSITE OXIDE, PREPARATION METHOD FOR SAME, AND APPLICATION THEREOF - This invention relates to a composite oxide, production and use thereof as a methane selective oxidizing catalyst. The composite oxide has a composition as illustrated by the formula RhR | 11-12-2015 |
