PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE
    1.
    发明公开
    PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE 失效
    VERFAHREN ZUR HERSTELLUNG VON 1,1,1,3,3,-PUTAFUUOPROPANEN

    公开(公告)号:EP0877009A4

    公开(公告)日:1999-03-17

    申请号:EP96933611

    申请日:1996-10-08

    申请人: DAIKIN IND LTD

    摘要: A process for producing 1,1,1,3,3-pentafluoropropane which involves the first step of reacting in a gas phase 1,1,1,3,3-pentachloropropane with hydrogen fluoride to thereby give 1,1,1-trifluoro-3-chloro-2-propene; and the second step of reacting in a gas phase the above 1,1,1-trifluoro-3-chloro-2-propene with hydrogen fluoride to thereby give 1,1,1,3,3-petafluoropropane; wherein the 1,1,1-trifluoro-3-chloro-2-propene obtained in the first step is fed into the second step after eliminating hydrogen chloride formed as the by-product therefrom. Thus an economical and novel process for producing 1,1,1,3,3-pentafluoropropane can be provided in a high yield or at a good selectivity.

    摘要翻译: 生产1,1,1,3,3-五氟丙烷的方法,包括第一步在气相中使1,1,1,3,3-五氯丙烷与氟化氢反应,由此得到1,1,1-三氟 -3-氯-2-丙烯; 第二步使上述1,1,1-三氟-3-氯-2-丙烯在气相中与氟化氢反应生成1,1,1,3,3-四氟丙烷; 其中在第一步骤中获得的1,1,1-三氟-3-氯-2-丙烯在从其中除去作为副产物形成的氯化氢之后进料到第二步骤中。 因此,可以以高收率或高选择性提供用于生产1,1,1,3,3-五氟丙烷的经济和新颖的方法。

    PROCESS FOR PRODUCING HEXAFLUOROCYCLOBUTENE AND PROCESS FOR PRODUCING HEXAFLUOROCYCLOBUTANE
    7.
    发明公开
    PROCESS FOR PRODUCING HEXAFLUOROCYCLOBUTENE AND PROCESS FOR PRODUCING HEXAFLUOROCYCLOBUTANE 失效
    VERFAHREN ZUR HERSTELLUNG VON HEXAFLUOROCYCLOBUTEN UND VERFAHREN ZUR HERSTELLUNG VON HEXAFLUOROCYCLOBUTAN

    公开(公告)号:EP0716065A4

    公开(公告)日:1996-11-20

    申请号:EP94923068

    申请日:1994-08-03

    申请人: DAIKIN IND LTD

    摘要: A process for producing hexafluorocyclobutene by dechlorinating 1,2-dichlorohexafluorocyclobutane with hydrogen in the presence of a metal oxide and/or silicon oxide catalyst. A process for producing (Z)-1,2,3,3,4,4-hexafluorocyclobutane either by reducing hexafluorocyclobutene with hydrogen in a vapor phase in the presence of a palladium catalyst or by hydrogenating (reducing with hydrogen) 1,2-dichlorohexafluorocyclobutane in the presence of a rhodium catalyst. An inexpensively available 1,2-dichlorohexafluorocyclobutane can readily be converted into hexafluorocyclobutene in one step at an excellent selectivity. Further it is possible to produce (Z)-1,2,3,3,4,4-hexafluorocyclobutane in a high yield.

    摘要翻译: 一种在金属氧化物和/或氧化硅催化剂存在下用1,2-二氯六氟环丁烷与氢气脱氯生产六氟环丁烯的方法。 一种生产(Z)-1,2,3,3,4,4-六氟环丁烷的方法,其通过在钯催化剂存在下用气相中的氢气还原六氟环丁烯或通过氢化(用氢还原) 二氯六氟环丁烷在铑催化剂存在下反应。 廉价可得的1,2-二氯六氟环丁烷可以容易地以极好的选择性一步转化成六氟环丁烯。 此外,可以以高收率生产(Z)-1,2,3,3,4,4-六氟环丁烷。