发明名称 |
Azeotrope compositions comprising 1,1,1,2,3-pentafluoropropene and hydrogen fluoride and uses thereof |
摘要 |
Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,1,1,2,3-pentafluoropropene (E-HFC-1225ye) and hydrogen fluoride. The azeotrope and near-azeotrope compositions are useful in processes to produce and in processes to purify E-HFC-1225ye and/or Z-1,1,1,2,3-pentafluoropropene (Z-HFC-1225ye). Also disclosed are processes for the extractive distillation to separate E-HFC-1225ye from Z-HFC-1225ye.
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申请公布号 |
US8007677(B2) |
申请公布日期 |
2011.08.30 |
申请号 |
US20070440068 |
申请日期 |
2007.09.07 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
KNAPP JEFFREY P.;MAHLER BARRY ASHER;RAO VELLIYUR NOTT MALLIKARJUNA |
分类号 |
A62D1/00;B01D3/34;B01F1/00;C07C17/00;C07C17/25;C07C17/38;C07C19/08;C07C21/18;C09K5/00;C09K5/04;C11D17/00;C11D17/08;C23G5/00;H01B3/24 |
主分类号 |
A62D1/00 |
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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