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2. 发明授权

US06191328B1 Method for 1, 1, 1, 3, 3-pentafluoropropane 有权
标题翻译：纯化1,1,1,3,3-五氟丙烷的方法
公开(公告)号：US06191328B1
公开(公告)日：2001-02-20
申请号：US09202824
申请日：1998-12-22
申请人： Keisuke Kitano , Tatsuo Nakada , Takashi Shibanuma
发明人： Keisuke Kitano , Tatsuo Nakada , Takashi Shibanuma
IPC分类号： C07C1738
CPC分类号： C07C17/206 , C07C17/38 , C07C19/08
摘要： HFC-245fa is effectively separated from the mixture comprising 1,1,1,3,3-pentafluoropropane (HFC-245fa) and HF through a purification process comprising contacting at least one extraction agent selected from the group consisting of (a) a compound corresponds to the general formula (I): CxFyHz, (b) a compound corresponds to the general formula (II): R1R2R3N, (c) an compound corresponds to the general formula (III): R4OR5 and (d) a compound corresponds to the general formula (IV): ClClmHn with a mixture comprising 1,1,1,3,3-pentafluoropropane and hydrogen fluoride so as to form a liquid mixture and separating the liquid mixture into two liquid layers, followed by obtaining an extraction agent phase including HFC-245fa and the extraction agent as the main components, and separatively recovering HFC-245fa from the extraction agent phase.
摘要翻译： HFC-245fa通过纯化方法从包含1,1,1,3,3-五氟丙烷（HFC-245fa）和HF的混合物中有效地分离，包括使至少一种萃取剂与（a）化合物对应于通式（I）：CxFyHz，（b）化合物对应于通式（II）：R1R2R3N，（c）化合物对应于通式（III）：R4OR5和（d）化合物对应于通式（IV）：ClClmHn与包含1,1,1,3,3-五氟丙烷和氟化氢的混合物形成液体混合物并将液体混合物分离成两个液体层，然后获得提取剂相包括HFC-245fa和萃取剂为主要成分，并从提取剂相中分离回收HFC-245fa。

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