Patent application number | Description | Published |
20110118504 | THERMAL SALT SPLITTING OF AMMONIUM CARBOXYLATES - The present invention relates to a process for preparing hydroxycarboxylic acids, preferably α- and β-hydroxycarboxylic acids, from ammonium carboxylates of the general formula | 05-19-2011 |
20110189742 | METHOD FOR THE PRODUCTION OF FREE CARBOXYLIC ACIDS - A process for the preparation of free carboxylic acids including: A) preparation of carboxylic acid by a biological cell located in an aqueous medium with addition of an amine of formula (I) | 08-04-2011 |
20110251399 | METHOD FOR PRODUCING ALDEHYDES AND KETONES FROM PRIMARY AND SECONDARY ALCOHOLS - The invention relates to a method for producing aldehydes and ketones from easily accessible primary and secondary alcohols by oxidation with atmospheric oxygen or pure oxygen using a catalyst system which consists of a derivative of a free nitroxyl radical. | 10-13-2011 |
20110257429 | METHOD FOR PRODUCING A FREE ACID FROM THE SALT THEREOF - The invention relates to an improved method for releasing an organic acid, preferably a carbon, sulfone or phosphone acid, particularly an alpha or beta hydroxycarbon acid, from the ammonia salt thereof by releasing and removing ammoniac and simultaneous extraction of the released acid, having an amine as a suitable extraction means from the aqueous phase. This method corresponds to a reactive extraction. The reactive extraction of an organic acid from the aqueous ammonia salt solution thereof can be significantly improved by the use of a strip medium or carrier gas, such as nitrogen, air, water vapor or inert gases such as argon. The released ammoniac is removed from the aqueous solution by the continuous gas flow and can be resupplied into a production process. The free acid can be obtained by a method such as distillation, rectification, crystallization, reextraction, chromatography, adsorption or by a membrane method from the extraction means. | 10-20-2011 |
20110269977 | METHOD FOR PRODUCING 2,6-DIOXABICYCLO-(3.3.0)-OCTANE-4,8-DIONE - The invention relates to a method for producing 2,6-dioxabicyclo-(3.3.0)-octane-4,8-dione (I), comprising the oxidation of dianhydrohexitols (II-IV), or of corresponding hydroxy ketones, with an oxygen-containing gas in the presence of a catalyst composition, the reaction proceeding without the addition of halogen sources. | 11-03-2011 |
20120034665 | ENZYMATIC METHOD FOR PRODUCING ALDEHYDES - The invention relates to methods for producing aldehydes and the oxidation and reduction products thereof. | 02-09-2012 |
20120315366 | SWEETENER AND METHOD OF PRODUCTION THEREOF - The invention relates to a sweetener and to a method for the production thereof. | 12-13-2012 |
20130165672 | PROCESS FOR THE DIRECT AMINATION OF SECONDARY ALCOHOLS WITH AMMONIA TO GIVE PRIMARY AMINES - The invention relates to a process for preparing primary amines which comprises the process steps
| 06-27-2013 |
20130245276 | PROCESS FOR HOMOGENEOUSLY CATALYZED, HIGHLY SELECTIVE DIRECT AMINATION OF PRIMARY ALCOHOLS WITH AMMONIA TO PRIMARY AMINES WITH A HIGH VOLUME RATIO OF LIQUID PHASE TO GAS PHASE AND/OR HIGH PRESSURES - The present invention relates to a process for preparing primary amines comprising the process steps
| 09-19-2013 |
20130331580 | PROCESS FOR THE DIRECT AMINATION OF ALCOHOLS USING AMMONIA TO FORM PRIMARY AMINES BY MEANS OF A XANTPHOS CATALYST SYSTEM - The present invention relates to a chemocatalytic liquid-phase process for the direct one-stage amination of alcohols to primary amines by means of ammonia in high yields using a catalyst system containing at least one transition metal compound and a xantphos ligand. | 12-12-2013 |
20140039210 | LIQUID CATION EXCHANGER - The invention relates to a method for removing an organic compound having one or more positive charges from an aqueous solution. Said method consists of the following steps a) the aqueous solution containing the organic compound, and a hydrophobic organic solution which contains a hydrophobic liquid cation exchanger having one or more negative charges and a negative total charge, are provided, b) the aqueous solution and the organic solution are brought into contact with each other and c) the organic solution is separated from the aqueous solution. | 02-06-2014 |
20140039223 | CONTINUOUSLY OPERABLE METHOD FOR PRODUCING CARBONYL COMPOUNDS BY MEANS OF A CATALYST CONTAINING A NITROXYL RADICAL - The invention relates to a method for the oxidation of a primary or secondary alcohol, preferably to form an aldehyde or ketone, comprising the following steps: a) providing a catalyst composition comprising at least one compound containing a nitroxyl radical, at least one NO source, at least one carbon or mineral acid or an anhydride of a carbon or mineral acid; b) producing a reaction mixture by adding at least one primary or secondary alcohol and a gas comprising oxygen and optionally one or more than one solvent to the catalyst composition from step a) or step e); c) incubating the reaction mixture from step b) at a temperature of between 0 and 100° C. or at the boiling point of the solvent; d) simultaneously with or subsequent to step c): crystallizing the reaction product; and e) recovering the catalyst composition by removing the crystallized reaction product from the reaction mixture obtained in step d). | 02-06-2014 |
20140054224 | LIQUID CATION EXCHANGER - The present application relates to a process for removing an organic compound having one or more positive charges from an aqueous solution, comprising the steps a) provision of the aqueous solution comprising the organic compound and of a hydrophobic organic solution which comprises a liquid cation exchanger, where the liquid cation exchanger is hydrophobic, and where the liquid cation exchanger has one or more negative charges and an overall negative charge, b) contacting the aqueous solution and the organic solution, and c) separating off the organic solution from the aqueous solution. | 02-27-2014 |