| 发明名称 | Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation | ||
| 摘要 | The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent. | ||
| 申请公布号 | US9073848(B2) | 申请公布日期 | 2015.07.07 |
| 申请号 | US201214126270 | 申请日期 | 2012.03.13 |
| 申请人 | AKZO NOBEL CHEMICALS INTERNATIONAL B.V. | 发明人 | Jongmans Mark Theodorus Gerardus;Pragt Johannes Josef;Bargeman Gerrald;Schuur Boelo;Aaldering Jacobus Theodorus Josef;De Haan André Banier;Nieuwhof Melle Rinze;Verwer Paul;Kiss Anton Alexandru;Ten Kate Antoon Jacob Berend;Van Strien Cornelis Johannes Govardus |
| 分类号 | C07C51/50;C07C51/44;C07C51/48;C07C51/62;C07C51/46 | 主分类号 | C07C51/50 |
| 代理机构 | Kenyon & Kenyon LLP | 代理人 | Kenyon & Kenyon LLP |
| 主权项 | 1. A process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole, wherein the extractive agent is less volatile than the monochloroacetic acid and the dichloroacetic acid, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent. | ||
| 地址 | Amersfoort NL | ||