Invention Grant
US08053613B2 Processes for producing 1,2,3,3,3-pentafluoropropene and precursors thereof
有权
制备1,2,3,3,3-五氟丙烯及其前体的方法
- Patent Title: Processes for producing 1,2,3,3,3-pentafluoropropene and precursors thereof
- Patent Title (中): 制备1,2,3,3,3-五氟丙烯及其前体的方法
-
Application No.: US12377761Application Date: 2007-09-05
-
Publication No.: US08053613B2Publication Date: 2011-11-08
- Inventor: Allen Capron Sievert
- Applicant: Allen Capron Sievert
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- International Application: PCT/US2007/019317 WO 20070905
- International Announcement: WO2008/030442 WO 20080313
- Main IPC: C07C19/08
- IPC: C07C19/08
Abstract:
A process is disclosed for making CH2ClCF2CClF2. The process involves reacting CH2ClF with CClF═CF2 in an addition reaction zone in the presence of an aluminum halide composition having a bulk formula of AlClxBryF3-x-y wherein the average value of x is 0 to 3, the average value of y is 0 to 3−x, provided that the average values of x and y are not both 0. Also disclosed is a process for making CH2FCF2CF3 that involves reacting the CH2ClCF2CClF2 with HF in a fluorination reaction zone in the presence of a fluorination catalyst. Also disclosed is a process for making CHF═CFCF3 that involves dehydrofluorinating the CH2FCF2CF3.
Public/Granted literature
- US20100197981A1 PROCESSES FOR PRODUCING 1,2,3,3,3-PENTAFLUOROPROPENE AND PRECURSORS THEREOF Public/Granted day:2010-08-05
Information query
