发明申请
- 专利标题： Tetrafluoropropene Production Processes
- 专利标题（中）： 四氟丙烯生产工艺
-
申请号： US12301070申请日： 2007-06-22
-
公开(公告)号： US20090127496A1公开(公告)日： 2009-05-21
- 发明人: Velliyur Nott Mallikarjuna Rao , Mario Joseph Nappa , Allen Capron Sievert
- 申请人： Velliyur Nott Mallikarjuna Rao , Mario Joseph Nappa , Allen Capron Sievert
- 专利权人： E.I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E.I. DU PONT DE NEMOURS AND COMPANY
- 国际申请： PCT/US2007/014645 WO 20070622
- 主分类号： C09K5/00
- IPC分类号： C09K5/00 ; C07C17/25
摘要：
A process is disclosed for the manufacture of CF3CF═CH2 and CF3CH═CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF═CH2 and CF3CH═CHF, and recovering said CF3CF═CH2 and CF3CH═CHF from the product mixture.The present invention also provides a composition comprising (a) the Z-isomer of CF3CH═CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z—CF3CH═CHF.
公开/授权文献
- US07722781B2 Tetrafluoropropene production processes 公开/授权日：2010-05-25