发明申请
US20110144395A1 PROCESS TO REMOVE HF FROM 1,1,1,2,2,3,4,5,5,5-DECAFLUOROPENTANE
审中-公开
从1,1,1,2,2,3,4,5,5,5-十二烷基醚中除去HF的方法
- 专利标题： PROCESS TO REMOVE HF FROM 1,1,1,2,2,3,4,5,5,5-DECAFLUOROPENTANE
- 专利标题（中）： 从1,1,1,2,2,3,4,5,5,5-十二烷基醚中除去HF的方法
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申请号： US13058218申请日： 2009-08-11
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公开(公告)号： US20110144395A1公开(公告)日： 2011-06-16
- 发明人: Joan Ellen Bartelt , Jeffrey P. Knapp
- 申请人： Joan Ellen Bartelt , Jeffrey P. Knapp
- 申请人地址： US DE WILMINGTON
- 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
- 当前专利权人地址： US DE WILMINGTON
- 国际申请： PCT/US09/53355 WO 20090811
- 主分类号： C07C17/383
- IPC分类号： C07C17/383 ; C07C17/386 ; B01D3/14
摘要：
Disclosed is process for the recovery of HFC-43-10mee from a mixture comprising hydrogen fluoride and HFC-43-10mee, comprising feeding the composition comprising hydrogen fluoride and HFC-43-10mee to a distillation column, subjecting said mixture to a distillation step from which is formed a column distillate composition comprising an azeotrope or azeotrope-like composition of hydrogen fluoride and HFC-43-10mee, and a column-bottoms composition comprising HFC-43-10mee, condensing said column distillate composition to form two liquid phases, being i) an HFC-43-10mee-rich phase and ii) an HF-rich phase; and separating said two liquid phases.
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