- 专利标题： METHOD FOR PURIFYING TETRAFLUOROPROPENE
-
申请号： EP13866573.2申请日： 2013-11-21
-
公开(公告)号： EP2939994B1公开(公告)日： 2018-07-18
- 发明人: FURUTA, Shoji , OTSUKA, Tetsuo
- 申请人： Asahi Glass Company, Limited
- 申请人地址： 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo 100-8405 JP
- 专利权人： Asahi Glass Company, Limited
- 当前专利权人： Asahi Glass Company, Limited
- 当前专利权人地址： 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo 100-8405 JP
- 代理机构： Müller-Boré & Partner Patentanwälte PartG mbB
- 优先权： JP2012285248 20121227
- 国际公布： WO2014103582 20140703
- 主分类号： C07C17/386
- IPC分类号： C07C17/386 ; C07C21/18 ; C07C19/03
摘要：
To provide a method for efficiently separating 2,3,3,3-tetrafluoropropene (HFO-1234yf) and chloromethane (R40) from a composition containing HFO-1234yf and R40. A method for separating HFO-1234yf containing substantially no R40, which comprises bringing an azeotropic composition or azeotrope-like composition of HFO-1234yf and R40 into contact with a specific extraction solvent.
公开/授权文献
- EP2939994A1 METHOD FOR PURIFYING TETRAFLUOROPROPENE 公开/授权日：2015-11-04
信息查询
