| 发明名称 |
METHOD OF PURIFYING AN IONIC LIQUID AND METHOD OF DEHUMIDIFYING AIR |
| 摘要 |
Ionic liquids of the structure Q+A−, in which Q+ is a 1,3-dialkylimidazolium ion, in which the alkyl groups, independently of one another, are linear C1-C4-alkyl groups and A− is the anion of an acid HA with a pKa of less than 3, can be purified by desorption of volatile compounds at a temperature of 100 to 200° C. and a pressure of at most 100 mbar over a period of at least 0.1 h and be used for dehumidifying air. |
| 申请公布号 |
US2016175766(A1) |
申请公布日期 |
2016.06.23 |
| 申请号 |
US201514973084 |
申请日期 |
2015.12.17 |
| 申请人 |
Evonik Degussa GmbH |
发明人 |
Zehnacker Olivier;Willy Benjamin;Wang Xinming;Schneider Rolf;Schneider Marc-Christoph |
| 分类号 |
B01D53/26;C07C53/10;C07F9/06;C07D233/58;C07C309/04 |
主分类号 |
B01D53/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of purifying an ionic liquid, comprising desorbing volatile compounds from an ionic liquid of the structure Q+A−, wherein:
Q+ is a 1,3-dialkylimidazolium ion, in which the alkyl groups, independently of one another, are linear C1-C4-alkyl groups; and A− is the anion of an acid, HA, with a pKa of less than 3;and wherein said desorbing is performed at a temperature of 100 to 200° C. and a pressure of at most 100 mbar over a period of at least 0.1 hour. |
| 地址 |
Essen DE |
