Class / Patent application number | Description | Number of patent applications / Date published |
562550000 | Formation of carboxyl group by carbonation | 7 |
20110237830 | Novel catalyst mixtures - Catalysts comprised of at least one catalytically active element and at least one helper catalyst are disclosed. The catalysts may be used to increase the rate, the selectivity or lower the overpotential of chemical reactions. These catalysts may be useful for a variety of chemical reactions including in particular the electrochemical conversion of carbon dioxide to formic acid. | 09-29-2011 |
20120022290 | Process for Preparing Formic Acid by Reaction of Carbon Dioxide with Hydrogen - A process for preparing formic acid by reaction of carbon dioxide ( | 01-26-2012 |
20140018573 | Method of preparing power of a solid carbazic acid derivative - The present disclosure relates to a method of preparing powder of a solid carbazic acid derivative, which involves inducing a reaction of a liquid hydrazine derivative with carbon dioxide at a high pressure of from about 0.5 MPa to about 100 MPa. During the reaction, the pressure may range from about 0.5 MPa to about 100 MPa. In this regard, although the reaction of the carbon dioxide with the liquid hydrazine derivative occurs when the pressure is adjusted to below than about 0.5 MPa, sticky precipitates in a form of gel are gradually produced but the powder is not produced. | 01-16-2014 |
20140058132 | METHOD FOR PRODUCING ACETYLENEDICARBOXYLIC ACID FROM ACETYLENE AND CARBON DIOXIDE - The invention relates to a method for producing acetylenedicarboxylic acid by reaction of acetylene with carbon dioxide, wherein the reaction is carried out in the presence of a silver or copper salt and an amine base. | 02-27-2014 |
20150051421 | PROCESS FOR THE PREPARATION OF METHIONINE - The invention relates to a process for the preparation of D,L-methionine, in which carbon dioxide is fed to an aqueous potassium methioninate solution obtained by hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in order to precipitate out crude methionine, which is separated off and purified, where, for the purposes of purification, an aqueous solution of the separated-off crude methionine is prepared and subjected to a recrystallization, characterized in that the solution from which the recrystallization takes place contains potassium ions and also a crystallization additive, where the crystallization additive is a nonionic or anionic surfactant, or a mixture of different nonionic or anionic surfactants, and that the recrystallization takes place by introducing a 60 to 110° C.-hot methionine solution into a 35 to 80° C.-warm methionine suspension, the temperature of which is lower than that of the introduced solution, the temperature of the methionine suspension being maintained between 35 and 80° C. during the addition. | 02-19-2015 |
562551000 | Of C-metallated compound | 2 |
20130172616 | Preparation of a,B-Ethylenically Unsaturated Carboxylic Salts By Catalytic Carboxylation Of Alkenes - In a process for preparing an alkali metal or alkaline earth metal salt of an α,β-ethylenically unsaturated carboxylic acid, a) a transition metal-alkene complex is reacted with CO | 07-04-2013 |
20160102039 | Methods for the Production of Alpha,Beta-Unsaturated Carboxylic Acids and Salts Thereof - Processes for producing an α,β-unsaturated carboxylic acid, such as acrylic acid, or a salt thereof, using solid promoters are disclosed. The solid promoters can be certain solid oxides, mixed oxides, and clays, illustrative examples of which can include alumina, zirconia, magnesia, magnesium aluminate, sepiolite, and similar materials. | 04-14-2016 |