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    Purification process for hexafluoroethane products
    21.
    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。

    Compositions comprising 1,1,1,2,3-pentafluoropropane or 2,3,3,3- tetrafluoropropene
    26.
    发明授权
    Compositions comprising 1,1,1,2,3-pentafluoropropane or 2,3,3,3- tetrafluoropropene 有权
    包含1,1,1,2,3-五氟丙烷或2,3,3,3-四氟丙烯的组合物

    公开(公告)号：US08333902B2

    公开(公告)日：2012-12-18

    申请号：US13408686

    申请日：2012-02-29

    申请人： Barry Asher Mahler ,  Mario Joseph Nappa ,  Jeffrey P. Knapp

    发明人： Barry Asher Mahler ,  Mario Joseph Nappa ,  Jeffrey P. Knapp

    IPC分类号： C09K5/04

    CPC分类号： C09K5/00 ,  B01J27/125 ,  B01J37/26 ,  C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  C07C21/22 ,  C08J9/146 ,  C08J9/149 ,  C09K3/30 ,  C09K5/045 ,  C09K2205/12 ,  C09K2205/126 ,  C07C19/08

    摘要： Disclosed are compositions comprising HFC-245eb and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-245fa, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-143a, HFC-134, HFC-134a, FC-1216, HFO-1234yf, HFC-254eb, HFO-1243zf, and HFC-254fb. Compositions comprising HFC-245eb are useful in processes to make HFO-1234yf. Also disclosed are compositions comprising HFO-1234yf and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-254eb, HFC-254fb, HFO-1243zf, HFCHFC-245eb, HFC-245fa, HFC-245cb, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-134, HFC-134a, HFO-1132a and FC-1216. Compositions comprising HFO-1234yf are useful as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

    摘要翻译： 公开了包含HFC-245eb和至少一种选自HFO-1234ze，HFC-245fa，HFC-236cb，HFC-236ea，HFC-236fa，HFC-227ea，HFC-227ca，HFO-1225yc ，HFO-1225zc，HFO-1225ye，甲烷，乙烷，丙烷，HFC-23，HFC-143a，HFC-134，HFC-134a，FC-1216，HFO-1234yf，HFC-254eb，HFO-1243zf和HFC- 254fb。 包含HFC-245eb的组合物可用于制备HFO-1234yf的方法。 还公开了包含HFO-1234yf和至少一种选自HFO-1234ze，HFC-254eb，HFC-254fb，HFO-1243zf，HFCHFC-245eb，HFC-245fa，HFC-245cb，HFC- 236cb，HFC-236ea，HFC-236fa，HFC-227ea，HFC-227ca，HFO-1225yc，HFO-1225zc，HFO-1225ye，甲烷，乙烷，丙烷，HFC-23，HFC-134，HFC-134a， 1132a和FC-1216。 包含HFO-1234yf的组合物可用作用于制冷，空调和热泵系统的热转印组合物。

    PRODUCTION PROCESSES FOR MAKING 1,1,1,2,2,3-HEXAFLUOROPROPANE
    30.
    发明申请
    PRODUCTION PROCESSES FOR MAKING 1,1,1,2,2,3-HEXAFLUOROPROPANE 失效
    制备1,1,1,2,2,3-四氢呋喃的生产工艺

    公开(公告)号：US20100305371A1

    公开(公告)日：2010-12-02

    申请号：US12439575

    申请日：2007-09-04

    申请人： Barry Asher Mahler ,  Xuehui Sun ,  Velliyur Nott Mallikarjuna Rao

    发明人： Barry Asher Mahler ,  Xuehui Sun ,  Velliyur Nott Mallikarjuna Rao

    IPC分类号： C07C17/269

    CPC分类号： C07C17/278 ,  C07C19/08

    摘要： A process for making HFC-236cb is disclosed. The process comprises reacting TFE with HFC-32 in the presence of at least one co-product and a suitable catalyst to produce a product mixture comprising HFC-236cb, wherein the total amount of the at least one co-product is at least 10 ppmv based on the total amount of the tetrafluoroethylene, the difluoromethane and the at least one co-product.

    摘要翻译： 公开了制备HFC-236cb的方法。 该方法包括在至少一种共同产物和合适的催化剂的存在下使TFE与HFC-32反应以产生包含HFC-236cb的产物混合物，其中至少一种副产物的总量至少为10ppmv 基于四氟乙烯，二氟甲烷和至少一种副产物的总量。