Process for Preparing R-1234yf By Base Mediated Dehydrohalogenation
    1.
    发明申请
    Process for Preparing R-1234yf By Base Mediated Dehydrohalogenation 有权
    通过碱介导的脱卤化氢制备R-1234yf的方法

    公开(公告)号:US20130274528A1

    公开(公告)日:2013-10-17

    申请号:US13917175

    申请日:2013-06-13

    IPC分类号: C07C17/25

    摘要: The invention relates to a process for preparing 2,3,3,3-tetrafluoropropene (CF3CF═CH2), performed using the steps of dehydrohalogenating 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245ca) 1,1,1,2-tetrafluoro-2-chloropropane, 1,1,1,2,3-pentafluoropropane (CH2FCHFCF3, HFC-245eb) and/or 1,1,1,2-tetrafluoro-3-chloropropane in the presence of a base, and converting a trifluorodichloropropane or a difluorotrichloropropane or a fluorotetrachloropropane to CH3CF2CF3, 1,1,1,2-tetrafluoro-2-chloropropane, CH2FCHFCF3, and/or 1,1,1,2-tetrafluoro-3-chloropropane.

    摘要翻译: 本发明涉及使用以下步骤进行2,3,3,3-四氟丙烯(CF 3 CF = CH 2)的制备方法:使1,1,1,2,2-五氟丙烷(CH 3 CF 2 CF 3,HFC-245ca)1,1 ,1,2-四氟-2-氯丙烷,1,1,1,2,3-五氟丙烷(CH 2 FCHFCF 3,HFC-245eb)和/或1,1,1,2-四氟-3-氯丙烷在 碱,并将三氟二氯丙烷或二氟三氯丙烷或氟四氯丙烷转化为CH 3 CF 2 CF 3,1,1,1,2-四氟-2-氯丙烷,CH 2 FCHFCF 3和/或1,1,1,2-四氟-3-氯丙烷。

    Process for preparing R-1234yf by base mediated dehydrohalogenation
    4.
    发明授权
    Process for preparing R-1234yf by base mediated dehydrohalogenation 有权
    通过碱介导的脱卤化氢制备R-1234yf的方法

    公开(公告)号:US08822740B2

    公开(公告)日:2014-09-02

    申请号:US13917175

    申请日:2013-06-13

    IPC分类号: C07C17/20

    摘要: The invention relates to a process for preparing 2,3,3,3-tetrafluoropropene (CF3CF═CH2), performed using the steps of dehydrohalogenating 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245ca) 1,1,1,2-tetrafluoro-2-chloropropane, 1,1,1,2,3-pentafluoropropane (CH2FCHFCF3, HFC-245eb) and/or 1,1,1,2-tetrafluoro-3-chloropropane in the presence of a base, and converting a trifluorodichloropropane or a difluorotrichloropropane or a fluorotetrachloropropane to CH3CF2CF3, 1,1,1,2-tetrafluoro-2-chloropropane, CH2FCHFCF3, and/or 1,1,1,2-tetrafluoro-3-chloropropane.

    摘要翻译: 本发明涉及使用以下步骤进行2,3,3,3-四氟丙烯(CF 3 CF = CH 2)的制备方法:将1,1,1,2,2-五氟丙烷(CH 3 CF 2 CF 3,HFC-245ca)1,1 ,1,2-四氟-2-氯丙烷,1,1,1,2,3-五氟丙烷(CH 2 FCHFCF 3,HFC-245eb)和/或1,1,1,2-四氟-3-氯丙烷在 碱,并将三氟二氯丙烷或二氟三氯丙烷或氟四氯丙烷转化为CH 3 CF 2 CF 3,1,1,1,2-四氟-2-氯丙烷,CH 2 FCHFCF 3和/或1,1,1,2-四氟-3-氯丙烷。

    Process for Preparing R-1234yf by Base Mediated Dehydrohalogenation
    5.
    发明申请
    Process for Preparing R-1234yf by Base Mediated Dehydrohalogenation 有权
    通过碱介导的脱卤化氢制备R-1234yf的方法

    公开(公告)号:US20130217927A1

    公开(公告)日:2013-08-22

    申请号:US13854726

    申请日:2013-04-01

    IPC分类号: C07C17/25

    摘要: The invention relates to a process for preparing 2,3,3,3-tetrafluoropropene (CF3CF═CH2), performed using the steps of dehydrohalogenating 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245ca) 1,1,1,2-tetrafluoro-2-chloropropane, 1,1,1,2,3-pentafluoropropane (CH2FCHFCF3, HFC-245eb) and/or 1,1,1,2-tetrafluoro-3-chloropropane in the presence of a base, and converting a trifluorodichloropropane or a difluorotrichloropropane or a fluorotetrachloropropane to CH3CF2CF3, 1,1,1,2-tetrafluoro-2-chloropropane, CH2FCHFCF3, and/or 1,1,1,2-tetrafluoro-3-chloropropane.

    摘要翻译: 本发明涉及使用以下步骤进行2,3,3,3-四氟丙烯(CF 3 CF = CH 2)的制备方法:使1,1,1,2,2-五氟丙烷(CH 3 CF 2 CF 3,HFC-245ca)1,1 ,1,2-四氟-2-氯丙烷,1,1,1,2,3-五氟丙烷(CH 2 FCHFCF 3,HFC-245eb)和/或1,1,1,2-四氟-3-氯丙烷在 碱,并将三氟二氯丙烷或二氟三氯丙烷或氟四氯丙烷转化为CH 3 CF 2 CF 3,1,1,1,2-四氟-2-氯丙烷,CH 2 FCHFCF 3和/或1,1,1,2-四氟-3-氯丙烷。

    Process for preparing 2,3,3,3-tetrafluoropropene (1234yf)
    9.
    发明授权
    Process for preparing 2,3,3,3-tetrafluoropropene (1234yf) 有权
    制备2,3,3,3-四氟丙烯(1234yf)的方法

    公开(公告)号:US08536388B2

    公开(公告)日:2013-09-17

    申请号:US12736444

    申请日:2009-04-09

    IPC分类号: C07C17/25

    摘要: The present invention provides a process for its preparation comprising (a) converting 1,1,1-trifluoro-2,3-dichloropropane (243db) to 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCI═CH2) in the presence of a first catalyst in a first reactor, (b) contacting CF3CCI═CH2 with a fluorinating agent in the presence of a second catalyst in a second reactor to produce a compound of formula CF3CFXCH3, wherein X═Cl or F, and (c) dehydrohalogenating the compound of formula CF3CFXCH3 to produce 2,3,3,3-tetrafluoropropene (1234yf).

    摘要翻译: 本发明提供其制备方法,其包括(a)将1,1,1-三氟-2,3-二氯丙烷(243db)转化为3,3,3-三氟-2-氯 - 丙-1-烯(CF 3 CCl = CH 2),(b)在第二反应器中,在第二催化剂存在下使CF 3 CCl = CH 2与氟化剂接触,得到式CF 3 CFXCH 3的化合物,其中X = Cl或 F和(c)将式CF 3 CFXCH 3的化合物脱卤化氢,得到2,3,3,3-四氟丙烯(1234yf)。