发明名称 |
Process for production of azeotrope compositions comprising hydrofluoroolefin and hydrogen fluoride and uses of said azeotrope compositions in separation processes |
摘要 |
Disclosed herein is a process to produce an azeotrope composition comprising a hydrofluoroolefin and hydrogen fluoride, said process comprising, dehydrofluorinating a hydrofluorocarbon containing at least one hydrogen and at least one fluorine on adjacent carbons, thereby forming a mixture comprising said hydrofluoroolefin, unreacted hydrofluorocarbon and hydrogen fluoride, and distilling the mixture to produce a distillate composition comprising an azeotrope composition containing said hydrofluoroolefin and hydrogen fluoride and a column bottoms composition comprising said hydrofluorocarbon essentially free of hydrogen fluoride. Also disclosed herein are processes for separation of hydrofluoroolefins from hydrofluorocarbons and from hydrogen fluoride.
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申请公布号 |
US7897823(B2) |
申请公布日期 |
2011.03.01 |
申请号 |
US20050264183 |
申请日期 |
2005.11.01 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MILLER RALPHA NEWTON;NAPPA MARIO JOSEPH;RAO VELLIYUR NOTT MALLIKARJUNA;SIEVERT ALLEN CAPRON |
分类号 |
C07C17/00;C07C17/08;C07C17/18;C07C17/25 |
主分类号 |
C07C17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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