发明公开
EP2970063A1 METHOD TO IMPROVE 1,1,3-TRICHLOROPROPENE AND/OR 3,3,3-TRICHLOROPROPENE SELECTIVITY DURING THE DEHYDROCHLORINATION OF 1,1,1,3-TETRACHLOROPROPANE
审中-公开
基本信息:
- 专利标题： METHOD TO IMPROVE 1,1,3-TRICHLOROPROPENE AND/OR 3,3,3-TRICHLOROPROPENE SELECTIVITY DURING THE DEHYDROCHLORINATION OF 1,1,1,3-TETRACHLOROPROPANE
- 专利标题（中）：工艺为1,1,3-三氯丙烯和/或3,3,3-三氯丙烯1,1,1,3-过程中四氯化丙烷脱氯化氢中选择性改进
- 申请号：EP14774357.9 申请日：2014-03-04
- 公开(公告)号：EP2970063A1 公开(公告)日：2016-01-20
- 发明人： YANG, Terris , TUNG, Hsueh Sung
- 申请人： Honeywell International Inc.
- 申请人地址： 115 Tabor Road Morris Plains, NJ 07950 US
- 专利权人： Honeywell International Inc.
- 当前专利权人： Honeywell International Inc.
- 当前专利权人地址： 115 Tabor Road Morris Plains, NJ 07950 US
- 代理机构： Hucker, Charlotte Jane
- 优先权： US201313796558 20130312
- 国际公布： WO2014158785 20141002
- 主分类号： C07C17/42
- IPC分类号： C07C17/42 ; C07C21/04
摘要：
This invention relates to a method to improve 1,1, 3 -trichloropropene (HCC- 1240za) and/or 3,3,3-trichloropropene (HCC-1240zf) selectivity in the dehydrochlormation of 1,1,1,3-tetrachloropropane (HCC-250fb). In normal practice, FeCl3 is used as the catalyst for the dehydrochlormation of HCC-250fb to produce 1,1,3- trichloropropene and/or 3,3,3-trichloropropene. The present invention demonstrates that when using FeCl3 as the catalyst for 1,1,1,3-tetrachloropropane dehydrochlormation, the reaction product contains significant amounts of high boiling compounds, such as pentachlorocyclohexene and/or hexachlorocyclohexane species. The addition of one or more UV-stabilizer and/or anti-oxidant compounds, or mixtures thereof, into the dehydrochlormation reaction system, inhibits the formation of these high boiling compounds and improves selectivity to the desired product.