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    Process for preparing pentafluoroethane (R 125)
    1.
    发明授权
    Process for preparing pentafluoroethane (R 125) 失效
    五氟乙烷（R 125）

    公开(公告)号：US5763701A

    公开(公告)日：1998-06-09

    申请号：US617218

    申请日：1996-03-18

    申请人： Hans-Matthias Deger ,  Werner Krause ,  Dieter Schmid ,  Martin Hoeveler

    发明人： Hans-Matthias Deger ,  Werner Krause ,  Dieter Schmid ,  Martin Hoeveler

    IPC分类号： B01J23/26 ,  B01J37/26 ,  C07B61/00 ,  C07C17/087 ,  C07C17/21 ,  C07C19/08

    CPC分类号： B01J37/26 ,  B01J23/26 ,  C07C17/21

    摘要： The invention relates to a process for preparing pentafluoroethane (R 125) by reacting perchloroethylene with hydrogen fluoride in the gas phase over a chromium-containing catalyst, wherein the catalyst used comprises chromium and magnesium and is obtainable by reacting a water-soluble chromium(III) salt with magnesium hydroxide or magnesium oxide and, if desired, graphite in the presence of water, converting the reaction mixture into a paste, then drying the paste and treating it with hydrogen fluoride at temperatures of from 20.degree. to 500.degree. C., using such amounts of chromium(III) and magnesium salts and, if desired, graphite that the dried paste before treatment with hydrogen fluoride contains from 4.5 to 26% by weight of Cr, expressed as Cr.sub.2 O.sub.3, and at least 25% by weight of Mg, expressed as MgO, and, if desired, graphite.

    摘要翻译： 本发明涉及通过使全氯乙烯与氟化氢在气相中在含铬催化剂上反应制备五氟乙烷（R 125）的方法，其中使用的催化剂包括铬和镁，并且可通过使水溶性铬（III ）盐与氢氧化镁或氧化镁反应，如果需要，在水存在下加入石墨，将反应混合物转化成糊状物，然后干燥该糊料并用氟化氢在20-500℃的温度下处理， 使用这种量的铬（III）和镁盐，如果需要，石墨使用氟化氢处理前的干糊状物含有4.5至26重量％的Cr，以Cr 2 O 3表示，至少25重量％的Mg ，以MgO表示，如果需要，表示为石墨。

    Process for disposing of halons or halon-containing fluorocarbons or chlorofluorocarbons
    4.
    发明授权
    Process for disposing of halons or halon-containing fluorocarbons or chlorofluorocarbons 失效
    处理哈龙或含卤素的碳氟化合物或氯氟烃的方法

    公开(公告)号：US5457267A

    公开(公告)日：1995-10-10

    申请号：US36672

    申请日：1993-03-25

    申请人： Rolf-Michael Jansen ,  Siegismut Hug ,  Hans-Matthias Deger

    发明人： Rolf-Michael Jansen ,  Siegismut Hug ,  Hans-Matthias Deger

    IPC分类号： C01B7/09 ,  B01D53/70 ,  B01D53/75 ,  C01B7/01 ,  C01B7/19

    CPC分类号： B01D53/75 ,  B01D53/70 ,  Y02C20/30

    摘要： A process for disposing of bromofluorocarbons, bromochlorofluorocarbons, or mixtures of any of bromofluorocarbons, bromochlorofluorocarbons, fluorocarbons, or chlorofluorocarbons. The process comprises thermally cleaving halons, halon-containing fluorocarbons, or halon containing chlorofluorocarbons, cooling the resulting gas stream, oxidizing the resulting hydrogen bromide to bromine by feeding excess elemental chlorine into the gas stream, absorbing the resulting HF or HCl from the gas stream with recovery of hydrofluoric acid or hydrochloric acid, and finally separating elemental bromine and chlorine from each other by distillation or reducing both to give the salts.

    摘要翻译： 处理溴化碳氟化合物，溴氯氟烃，或溴氟碳化合物，溴氯氟碳氟化合物，碳氟化合物或氯氟碳化合物的混合物的方法。 该方法包括热裂解哈龙，含卤素的碳氟化合物或含有氯氟烃的哈龙，冷却所得气流，通过向气流中加入过量的元素氯将所得溴化氢氧化成溴，从气流中吸收所得的HF或HCl 通过回收氢氟酸或盐酸，最后通过蒸馏或还原两者将元素溴和氯彼此分离，得到盐。

    Process for the manufacture of foams with the aid of blowing agents containing fluoroalkanes and fluorinated ethers, and foams obtained by this process
    8.
    发明授权
    Process for the manufacture of foams with the aid of blowing agents containing fluoroalkanes and fluorinated ethers, and foams obtained by this process 失效
    制造含氟荧光剂和氟化物的发泡剂助剂的方法以及本方法获得的原料

    公开(公告)号：US5169873A

    公开(公告)日：1992-12-08

    申请号：US664624

    申请日：1991-03-04

    申请人： Klaus-Jurgen Behme ,  Hans-Matthias Deger ,  Claudia Schutz

    发明人： Klaus-Jurgen Behme ,  Hans-Matthias Deger ,  Claudia Schutz

    IPC分类号： C08G18/08 ,  C08G18/00 ,  C08G101/00 ,  C08J9/02 ,  C08J9/14

    CPC分类号： C08J9/143 ,  C08J2203/146 ,  C08J2375/04

    摘要： Process for the manufacture of foams with the aid of blowing agents containing fluoroalkanes and fluorinated ethers, and foams obtained by this process. The invention relates to a process for the manufacture of foams based on polyisocyanates by the reaction of polyisocyanates, compounds containing at least two hydrogen atoms reactive towards isocyanate groups, blowing agents and, if appropriate, other additives. The blowing agents used consist to the extent of at least 10 mol % of at least one fluoroalkane of formula (I), C.sub.a H.sub.b F.sub.c, where a=2-6, b=1-12, and c=2-13, and at least one fluorinated ether of formula (II), C.sub.a H.sub.b F.sub.c O-C.sub.d H.sub.e F.sub.f, where a=1-6, b=1-12, c=1-12, d=1-2, e=0-5 and f=0-5. The invention further relates to the foams obtained by this process.

    摘要翻译： 借助含有氟代烷烃和氟化醚的发泡剂制造泡沫的方法，以及通过该方法得到的泡沫体。 本发明涉及通过多异氰酸酯，含有至少两个对异氰酸酯基团反应的氢原子的化合物，发泡剂和适当的其它添加剂的反应制备基于多异氰酸酯的泡沫体的方法。 使用的发泡剂的至少10摩尔％至少一种式（I）的氟烷烃，CaHbFc，其中a = 2-6，b = 1-12和c = 2-13，至少 一种式（II）的氟化醚，CaHbFcO-CdHeFf，其中a = 1-6，b = 1-12，c = 1-12，d = 1-2，e = 0-5和f = 0-5。 本发明还涉及通过该方法获得的泡沫。