| Patent application number | Description | Published |
|---|
| 20100036175 | Process For Preparing 1,2-Propanediol By Hydrogenolysis Of Glycerol - The invention provides a process for preparing 1,2-propanediol, by reacting glycerol which has a purity of at least 95% by weight with hydrogen at a hydrogen pressure of from 20 to 100 bar and a temperature of from 180 to 240 DEG C. in the presence of a catalyst which comprises from 10 to 50% by weight of copper oxide and from 50 to 90% by weight of zinc oxide in an autoclave. | 02-11-2010 |
| 20100056735 | Method For Producing Alkyl Polyglycol Carboxylic Acids And Polyglycol Dicarboxylic Acids - The invention relates to a method for producing alkyl polyglycol carboxylic acids and polyglycol dicarboxylic acids by means of direct oxidation. The aim of the invention is a method for producing compounds of the formula (Ia) and/or compounds of the formula (Ib), wherein R | 03-04-2010 |
| 20100094064 | Method For Preparing 1,2-Propanediol By Hydrogenolysis Of Glycerol - The invention relates to a method for preparing 1,2-propanediol by reacting glycerol, which has a purity of at least 95 wt %, with hydrogen at a hydrogen pressure from 20 to 100 bar and a temperature from 180 to 240° C. in the presence of a catalyst, which comprises 20 to 60 wt % of copper oxide, 30 to 70 wt % of zinc oxide and 1 to 10 wt % manganese oxide in an autoclave. | 04-15-2010 |
| 20100286418 | Process For Preparing Acylglycinates By Means Of Direct Oxidation - A process is described for preparing acylglycinate salts of the formula (II) in which R | 11-11-2010 |
| 20100305358 | Method For The Production Of Acyl Glycinates By Means Of Direct Oxidation - A method is described for producing acyl glycinate salts of formula (II) | 12-02-2010 |
| 20110071323 | Method For Producing 1,2-Propanediol By Hydrogenolysis Of Glycerin - The invention relates to a method for producing 1,2-propanediol, in that a liquid phase comprising at least 95 wt.-% glycerin is reacted with hydrogen in the presence of a copper-containing, powdered catalyst in a continuously operated stirred reactor at a pressure of 50 to 90 bar, wherein the stationary yield of the reaction is at least 60%. | 03-24-2011 |
| 20110144385 | Method For The Production Of Aryl Polyglycol Carboxylic Acids By Means Of A Direct Oxidation Process - The invention relates to a method for producing compounds of formula (I) in which R | 06-16-2011 |
| 20110263909 | Method For Reprocessing Aircraft De-Icing Agents Comprising Glycol - The invention relates to a method for reprocessing aircraft de-icing agents comprising glycol, wherein (1) the used aircraft de-icing agents are collected in a suitable device, (2) the used aircraft de-icing agent is subsequently brought to a propylene glycol content of between 55 and 75% by weight without prior separating of solid or suspended impurities by expelling water at increased temperature, (3) the concentrated used aircraft de-icing agent thus obtained is transported to a central reprocessing system, where the same is subjected to a fine distillation, and wherein (4) propylene glycol is produced as a distillate of the fine distillation. | 10-27-2011 |
