METHOD FOR PRODUCING TETRAFLUOROPROPENES
    71.
    发明申请
    METHOD FOR PRODUCING TETRAFLUOROPROPENES 有权
    生产四氢呋喃的方法

    公开(公告)号:US20110270000A1

    公开(公告)日:2011-11-03

    申请号:US13073023

    申请日:2011-03-28

    IPC分类号: C07C17/23

    摘要: The current invention relates to a process for making a tetrafluoropropene using a tetrafluorochloropropane and/or a pentafluoropropane as starting or intermediate reagents. More specifically, though not exclusively, the present invention relates to a novel method for preparing a tetrafluoropropene by dehydrohalogenating a starting or intermediate tetrafluorochloropropane and/or pentafluoropropane material in the presence of a caustic solution at a temperature range greater than 40° C. and less than or equal to 80° C.

    摘要翻译: 本发明涉及使用四氟氯丙烷和/或五氟丙烷作为起始剂或中间体试剂制备四氟丙烯的方法。 更具体地说,本发明涉及一种通过在苛性碱溶液存在下,在大于40℃和更低的温度范围内将起始或中间四氟氯丙烷和/或五氟丙烷物质脱卤化氢来制备四氟丙烯的新方法 超过或等于80℃

    Process for the manufacture of 1,3,3,3-tetrafluoropropene
    72.
    发明授权
    Process for the manufacture of 1,3,3,3-tetrafluoropropene 有权
    制备1,3,3,3-四氟丙烯的方法

    公开(公告)号:US07829748B1

    公开(公告)日:2010-11-09

    申请号:US12563458

    申请日:2009-09-21

    IPC分类号: C07C17/00

    摘要: The invention provides an economic process for the manufacture of 1,3,3,3-tetrafluoropropene (HFO-1234ze) by a two stage process. A vapor phase hydrofluorination of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) into 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and/or 1,1,1,3,3-pentafluoropropane (HFC-245fa) is conducted, followed by the thermal dehydrochlorination of HCFC-244fa and dehydro fluorination of HFC-245fa into HFO-1234ze in the presence of a catalyst which comprises one or more of alkali metal halides, alkaline earth metal halides, halogenated metal oxides, zero oxidation state metals, zinc halides, palladium halides, and activated carbon.

    摘要翻译: 本发明提供了通过两阶段方法制备1,3,3,3-四氟丙烯(HFO-1234ze)的经济方法。 将1-氯-3,3,3-三氟丙烯(HCFC-1233zd)汽相氢氟化为1-氯-1,3,3,3-四氟丙烷(HCFC-244fa)和/或1,1,1,3 进行3-五氟丙烷(HFC-245fa),随后在含有一种或多种碱金属卤化物,碱土金属的催化剂存在下,将HCFC-244fa的热脱氯化氢和HFC-245fa的脱氟化氢分解成HFO-1234 卤化金属氧化物,零氧化态金属,卤化锌,钯卤化物和活性炭。

    Manufacturing Process for HFO-1234ze
    77.
    发明申请
    Manufacturing Process for HFO-1234ze 有权
    HFO-1234ze的制造工艺

    公开(公告)号:US20100022809A1

    公开(公告)日:2010-01-28

    申请号:US12125045

    申请日:2008-05-21

    IPC分类号: C07C17/00

    摘要: Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.

    摘要翻译: 公开了形成HFO-1234ze的方法,以及用于形成包含HFO-1234ze的组合物的方法,通过(a)优选通过脱氟化氢转化五氟丙烷(HFC-245),优选1,1,1,3,3-五氟丙烷(HFC -245fa),优选通过与苛性碱溶液接触,加入到包含顺-HFO-1234ze和反-HFO-1234ze的反应产物中; 并且(b)使至少一部分,优选基本上部分,在某些实施方案中使基本上所有的所述反应产物与至少一种异构化催化剂接触,以将至少一部分,优选至少大部分的顺-HFO- 1234ze在所述反应产物中以反式HFO-1234ze。