Process for the preparation of partly flourinated ethanes
    1.
    发明授权
    Process for the preparation of partly flourinated ethanes 失效
    制备部分发酵乙烷的方法

    公开(公告)号:US5175379A

    公开(公告)日:1992-12-29

    申请号:US644414

    申请日:1991-01-22

    IPC分类号: C07C17/20

    CPC分类号: C07C17/202

    摘要: A process for the preparation of partly fluorinated ethanes of the general formulaCF.sub.3 --CFH.sub.x Cl.sub.2-xin which x=0, 1 or 2, is indicated which comprises reacting, as the reactant, partly fluorinated ethane of the general formulaC.sub.2 F.sub.3 H.sub.x Cl.sub.3-xin which x=0, 1, or 2, and, as the fluorinating agent, partly fluorinated ethanes of the general formulaCF.sub.3-x Cl.sub.x --CH.sub.3-y Cl.sub.yin which x=0, 1 or 2 and y=0, 1, 2 or 3 with one another in gaseous form in the presence of a chromium catalyst at temperatures of 150.degree. to 600.degree. C., the reactant and the fluorinating agent having the same chemical structural formula being excluded.

    摘要翻译: 表示制备通式为+ TI,CF 3 -CFH x Cl 2-x的部分氟化乙烷的方法,其中x = 0,1或2,其包括使作为反应物的通式为C 2 F 3 H x Cl 3的部分氟化乙烷反应, x,其中x = 0,1或2,并且作为氟化剂,通式为+ TI,CF3-xClx-CH3-yCly的部分氟化乙烷,其中x = 0,1或2和y = 0, 在铬催化剂存在下,在150℃〜600℃的温度下,气相形成1,2或3,排除反应物和具有相同化学结构式的氟化剂。

    Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethane under
elevated pressure
    2.
    发明授权
    Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethane under elevated pressure 失效
    在升高的压力下制备1,1,1-三氟-2,2-二氯乙烷的方法

    公开(公告)号:US5254771A

    公开(公告)日:1993-10-19

    申请号:US23864

    申请日:1993-02-26

    IPC分类号: C07C17/10 C07C17/00

    CPC分类号: C07C17/10

    摘要: The invention relates to a process for the preparation of 1,1,1-trifluoro-2,2-dichloroethane by chlorinating 1,1,1-trifluoro-2-chloroethane, in which the chlorination is carried out under an elevated pressure. The pressure is preferably 10 to 400 bar, particularly 50 to 250 bar. If the reaction is initiated by heat, it is preferably carried out at 200.degree. to 300.degree. C. If it is initiated by a free-radical starter, the reaction is preferably carried out at 150.degree. to 250.degree. C.

    摘要翻译: 本发明涉及通过氯化1,1,1-三氟-2-氯乙烷制备1,1,1-三氟-2,2-二氯乙烷的方法,其中氯化在升高的压力下进行。 压力优选为10至400巴,特别是50至250巴。 如果反应是通过加热引发的,则优选在200-300℃下进行。如果由自由基引发剂引发反应,反应优选在150-250℃下进行。