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    Separating 1,1,1,3,3-pentafluoropropane from hydrogen fluoride
    2.
    发明授权
    Separating 1,1,1,3,3-pentafluoropropane from hydrogen fluoride 有权
    从氟化氢分离1,1,1,3,3-五氟丙烷

    公开(公告)号：US06303838B1

    公开(公告)日：2001-10-16

    申请号：US09509859

    申请日：2000-03-31

    申请人： Sara W. Boehmer ,  Barry Asher Mahler ,  Ralph Newton Miller

    发明人： Sara W. Boehmer ,  Barry Asher Mahler ,  Ralph Newton Miller

    IPC分类号： C07C1738

    CPC分类号： C07C17/38 ,  C07C19/08

    摘要： Disclosed are processes for separating 1,1,1,3,3-pentafluoropropane (HFC-245fa) from hydrogen fluoride (HF) by distillation, wherein hydrocarbons, chloroflurocarbons, hydrochlorofluorocarbons and fluorocarbons are used as entraining agents. The processes comprise: contacting a first mixture comprising HFC-245fa and HF with an entraining agent selected from the group consisting of hydrocarbons, chlorofluorocarbons, hydrochlorofluorocarbons and fluorocarbons to form a second mixture, distilling the second mixture and thereby separating the HFC-245fa from HF and entraining agent, and recovering HFC-245fa substantially-free of HF.

    摘要翻译： 公开了通过蒸馏从氟化氢（HF）分离1,1,1,3,3-五氟丙烷（HFC-245fa）的方法，其中使用烃，氯氟烃，氢氯氟烃和碳氟化合物作为夹带剂。 该方法包括：使包含HFC-245fa和HF的第一混合物与选自碳氢化合物，氯氟烃，氢氯氟烃和碳氟化合物的夹带剂接触以形成第二混合物，蒸馏第二混合物，从而将HFC-245fa与HF分离 和夹带剂，并回收基本上不含HF的HFC-245fa。

    Purification process for hexafluoroethane products
    4.
    发明授权
    Purification process for hexafluoroethane products 失效
    六氟乙烷产品净化过程

    公开(公告)号：US06221830B1

    公开(公告)日：2001-04-24

    申请号：US08842843

    申请日：1997-04-17

    申请人： Ralph Newton Miller ,  Mark Richard Deschere ,  Barry Asher Mahler ,  Olagappan Muthu

    发明人： Ralph Newton Miller ,  Mark Richard Deschere ,  Barry Asher Mahler ,  Olagappan Muthu

    IPC分类号： B01D334

    CPC分类号： C07C19/08 ,  C01B7/0712 ,  C01B7/196 ,  C07C17/38 ,  C07C17/386 ,  Y02P20/582

    摘要： The disclosure relates to removing impurities from hexafluoroethane (CF3CF3), also known as Perfluorocarbon 116 (PFC-116) or Fluorocarbon 116 (FC-116), by using azeotropic distillation such that an overhead product consisting essentially of HCl-hexafluoroethane is formed, optionally combined with a phase separation step to break the HCl-hexafluoroethane azeotropic or azeotrope-like composition thereby permitting recovery of substantially pure hexafluoroethane. Unreacted hydrogen fluoride (HF) may be removed from hexafluoroethane during the above azeotropic distillation with HCl or alternatively by an azeotropic distillation wherein an HF-hexafluoroethane azeotropic or azeotrope-like composition exits overhead and substantially pure HF exits in the bottoms stream.

    摘要翻译： 本公开涉及通过共沸蒸馏从六氟乙烷（CF 3 CF 3）（也称为全氟化碳116（PFC-116）或氟碳116（FC-116））除去杂质，从而形成基本上由HCl-六氟乙烷组成的塔顶馏出物 结合相分离步骤以破坏HCl-六氟乙烷共沸或类共沸组合物从而允许回收基本上纯的六氟乙烷。 在HCl的上述共沸蒸馏过程中，可以从六氟乙烷中除去未反应的氟化氢（HF），或者通过共沸蒸馏除去六氟乙烷，其中HF-六氟乙烷共沸或类共沸组合物离开塔顶馏出物，基本上纯的HF在塔底物流中离开。

    Purification process for hexafluoroethane products
    6.
    发明授权
    Purification process for hexafluoroethane products 失效
    六氟乙烷产品净化过程

    公开(公告)号：US5723699A

    公开(公告)日：1998-03-03

    申请号：US789173

    申请日：1997-01-24

    申请人： Ralph Newton Miller ,  Mark Richard Deschere ,  Barry Asher Mahler ,  Olagappan Muthu

    发明人： Ralph Newton Miller ,  Mark Richard Deschere ,  Barry Asher Mahler ,  Olagappan Muthu

    IPC分类号： C07C17/383 ,  C01B7/07 ,  C01B7/19 ,  C07C17/38 ,  C07C17/386 ,  C07C19/08

    CPC分类号： C07C19/08 ,  C01B7/0712 ,  C01B7/196 ,  C07C17/38 ,  C07C17/386 ,  Y02P20/582

    摘要： The disclosure relates to removing impurities from hexafluoroethane (CF.sub.3 CF.sub.3), also known as Perfluorocarbon 116 (PFC-116) or Fluorocarbon 116 (FC-116), by using azeotropic distillation such that an overhead product consisting essentially of HCl-hexafluoroethane is formed, optionally combined with a phase separation step to break the HCl-hexafluoroethane azeotropic or azeotrope-like composition thereby permitting recovery of substantially pure hexafluoroethane. Unreacted hydrogen fluoride (HF) may be removed from hexafluoroethane during the above azeotropic distillation with HCl or alternatively by an azeotropic distillation wherein an HF-hexafluoroethane azeotropic or azeotrope-like composition exits overhead and substantially pure HF exits in the bottoms stream.

    摘要翻译： 本公开涉及通过共沸蒸馏从六氟乙烷（CF 3 CF 3）（也称为全氟化碳116（PFC-116）或氟碳116（FC-116））除去杂质，从而形成基本上由HCl-六氟乙烷组成的塔顶馏出物 结合相分离步骤以破坏HCl-六氟乙烷共沸或类共沸组合物，从而允许回收基本上纯的六氟乙烷。 在HCl的上述共沸蒸馏过程中，可以从六氟乙烷中除去未反应的氟化氢（HF），或者通过共沸蒸馏除去六氟乙烷，其中HF-六氟乙烷共沸或类共沸组合物离开塔顶馏出物，基本上纯的HF在塔底物流中离开。

    Purification process for hexafluoroethane products
    9.
    发明授权
    Purification process for hexafluoroethane products 失效
    六氟乙烷产品净化过程

    公开(公告)号：US5718807A

    公开(公告)日：1998-02-17

    申请号：US309376

    申请日：1994-09-20

    申请人： Ralph Newton Miller ,  Mark Richard Deschere ,  Barry Asher Mahler ,  Olagappan Muthu

    发明人： Ralph Newton Miller ,  Mark Richard Deschere ,  Barry Asher Mahler ,  Olagappan Muthu

    IPC分类号： C07C17/383 ,  C01B7/07 ,  C01B7/19 ,  C07C17/38 ,  C07C17/386 ,  C07C19/08 ,  B01D3/36

    CPC分类号： C07C19/08 ,  C01B7/0712 ,  C01B7/196 ,  C07C17/38 ,  C07C17/386 ,  Y02P20/582

    摘要： The disclosure relates to removing impurities from hexafluoroethane (CF.sub.3 CF.sub.3), also known as PerFluoroCarbon 116 (PFC-116) or FluoroCarbon 116 (FC-116), by using azeotropic distillation such that an overhead product containing an HCl-hexafluoroethane is formed, optionally combined with a phase separation step to break the HCl-hexafluoroethane azeotropic or azeotrope-like composition thereby permitting recovery of substantially pure hexafluoroethane. Unreacted hydrogen fluoride (HF) may be removed from hexafluoroethane during the above azeotropic distillation with HCl or alternatively by an azeotropic distillation wherein an HF-hexafluoroethane azeotropic or azeotrope-like composition exits overhead and substantially pure HF exits in the bottoms stream.

    摘要翻译： 本公开涉及通过共沸蒸馏从六氟乙烷（CF 3 CF 3）（也称为PerFluoroCarbon 116（PFC-116）或氟碳116（FC-116））除去杂质，从而形成含有HCl-六氟乙烷的塔顶产物，任选组合 通过相分离步骤来破坏HCl-六氟乙烷共沸或类共沸组合物，从而允许回收基本上纯的六氟乙烷。 在HCl的上述共沸蒸馏过程中，可以从六氟乙烷中除去未反应的氟化氢（HF），或者通过共沸蒸馏除去六氟乙烷，其中HF-六氟乙烷共沸或类共沸组合物离开塔顶馏出物，基本上纯的HF在塔底物流中离开。