基本信息:
- 专利标题: 用于制备和提纯表氯醇的方法和设备
- 专利标题(英):Process and apparatus for producing and purifying epichlorohydrins
- 申请号:CN201210334701.X 申请日:2009-01-22
- 公开(公告)号:CN102993127A 公开(公告)日:2013-03-27
- 发明人: 克里斯蒂安·D·克诺佩尔 , 佩里·S·巴乔尔 , 威廉·W·凡 , 萨丝夏·努尔曼
- 申请人: 陶氏环球技术公司
- 申请人地址: 美国密歇根
- 专利权人: 陶氏环球技术公司
- 当前专利权人: 陶氏环球技术有限责任公司
- 当前专利权人地址: 美国密歇根
- 代理机构: 中科专利商标代理有限责任公司
- 代理人: 陈平
- 优先权: 61/031,570 2008.02.26 US; 61/067,324 2008.02.27 US
- 分案原申请号: 2009801064883 2009.01.22
- 主分类号: C07D301/32
- IPC分类号: C07D301/32 ; C07D301/26
A process and apparatus are disclosed for the purification of epichlorohydrin. The process includes distilling and/or fractionating a feed stream containing epichlorohydrin, dichlorohydrin(s), and one or more other substances, subjecting at least a portion of the liquid phase effluent to a dichlorohydrin dehydrochlorination process for converting residual dichlorohydrin(s) in the liquid phase effluent to epichlorohydrin, and recovering purified epichlorohydrin from the vapor phase effluent in which the distillation/fractionation pressure and/or temperature of step (1) is adjusted to retain at least 5 weight-percent epichlorohydrin in the liquid phase effluent. The apparatus for making purified epichlorohydrin includes a dehydrochlorination apparatus, a first liquid-vapor contacting apparatus, and a second liquid-vapor contacting apparatus connected to the dehydrochlorination apparatus for recycling a distillate to the dehydrochlorination apparatus. Advantages include more efficient recovery of epichlorohydrins and reduced capital investment in recovery equipment.
公开/授权文献:
- CN102993127B 用于制备和提纯表氯醇的方法和设备 公开/授权日:2014-11-19
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07D | 杂环化合物 |
------C07D301/00 | 环氧乙烷的制备 |
--------C07D301/32 | .分离;纯化 |