Zehnacker
Oliver Zehnacker, Recklinghausen DE
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 |
Olivier Zehnacker, Recklinghausen DE
Patent application number | Description | Published |
---|---|---|
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 |
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 |
20120247144 | OPERATING MEDIUM FOR AN ABSORPTION REFRIGERATION DEVICE - The invention relates to an operating medium for an absorption refrigeration device, comprising 5 to 30 wt % water and 65 to 95 wt % of a sorption agent comprising lithium bromide and at least one ionic liquid and wherein the sorption agent comprises ionic liquid and lithium bromide in a weight ratio of 0.5:1 to 5:1, having a lower friction coefficient compared to an operating medium comprising water and lithium bromide. | 10-04-2012 |
20130031930 | ABSORPTION HEAT PUMP WITH SORBENT COMPRISING LITHIUM CHLORIDE AND AN ORGANIC CHLORIDE SALT - An absorption heat pump with a sorbent which comprises lithium chloride and at least one salt Q | 02-07-2013 |
20130031931 | ABSORPTION HEAT PUMP WITH SORBENT COMPRISING A LITHIUM SALT AND AN ORGANIC SALT WITH THE SAME ANION - An absorption heat pump with a sorbent comprising a lithium salt and at least one organic salt with an organic cation Q | 02-07-2013 |
Olivier Zehnacker, Recklighausen DE
Patent application number | Description | Published |
---|---|---|
20120315366 | SWEETENER AND METHOD OF PRODUCTION THEREOF - The invention relates to a sweetener and to a method for the production thereof. | 12-13-2012 |
Olivier Zehnacker, Dortmund DE
Patent application number | Description | Published |
---|---|---|
20130219949 | WORKING MEDIUM FOR ABSORPTION HEAT PUMPS - A working medium comprising at least one refrigerant, at least one monohydric aliphatic alcohol having from 6 to 10 carbon atoms and at least one ionic liquid composed of at least one organic cation and at least one anion shows an improved efficiency COP in an absorption heat pump compared to working media which do not contain an alcohol having from 6 to 10 carbon atoms. | 08-29-2013 |
20150024106 | pH-adjusted sweetener - The invention relates to processes for producing hard sweets from isomalt while maintaining strict pHs, and also to mixed compositions containing isomalt and optionally pH buffer substances having a defined pH. | 01-22-2015 |