METHOD FOR CAPTURING AND RECYCLING IRON CATALYST USED IN THE PRODUCTION OF HALOALKANE COMPOUNDS
    2.
    发明申请
    METHOD FOR CAPTURING AND RECYCLING IRON CATALYST USED IN THE PRODUCTION OF HALOALKANE COMPOUNDS 审中-公开
    用于生产卤代烷化合物的铁电催化剂的回收和回收方法

    公开(公告)号:US20120305454A1

    公开(公告)日:2012-12-06

    申请号:US13471601

    申请日:2012-05-15

    IPC分类号: B03C1/00

    摘要: Disclosed is a method for capturing and recycling iron catalyst used in the production of haloalkane compounds and more particularly, to an improved process for the manufacture of the compound 1,1,1,3,3-pentachloropropane (HCC-240fa), in which an electromagnetic separation unit (EMSU) is used to facilitate the reaction. When energized, the EMSU functions to remove all iron particles from the reactor effluent; when de-energized, the iron particles captured by the EMSU can be flushed back into the reactor for re-use in the continued production of HCC-240fa. The present invention is also useful in the manufacturing processes for other haloalkane compounds such as HCC-250 and HCC-360.

    摘要翻译: 公开了一种用于捕获和再循环用于制备卤代烷烃化合物的铁催化剂的方法,更具体地说,涉及制备化合物1,1,1,3,3-五氯丙烷(HCC-240fa)的改进方法,其中 使用电磁分离单元(EMSU)来促进反应。 当通电时,EMSU用于从反应器流出物中除去所有铁颗粒; 当断电时,由EMSU捕获的铁颗粒可以冲洗回反应器,以便在继续生产HCC-240fa时重新使用。 本发明也可用于其它卤代烷烃化合物如HCC-250和HCC-360的制备方法。

    Manufacturing process for HFO-1234ze
    4.
    发明授权
    Manufacturing process for HFO-1234ze 有权
    HFO-1234ze制造工艺

    公开(公告)号:US09255046B2

    公开(公告)日:2016-02-09

    申请号:US12125045

    申请日:2008-05-21

    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。

    Integrated process for fluoro-olefin production
    8.
    发明授权
    Integrated process for fluoro-olefin production 有权
    氟烯烃生产的综合工艺

    公开(公告)号:US08618340B2

    公开(公告)日:2013-12-31

    申请号:US12611288

    申请日:2009-11-03

    IPC分类号: C07C23/18

    摘要: Disclosed is a process for the manufacture of HFO-1234yf from TCP in three integrated steps that include hydrofluorination of TCP (tetrachloropropene) to HCFC-1233xf in the vapor phase followed by hydrofluorination of HCFC-1233xf to HCFC-244bb in the liquid phase which is then followed by dehydrochlorination in liquid or vapor phase to produce HFO-1234yf. The vapor phase hydrofluorination is carried out at a higher pressure than the liquid phase hydrofluorination, thereby eliminating the need for compression and/or intermediate recovery. Also, any HCl generated from this reaction is fed to the liquid phase hydrofluorination section to promote agitation and mixing. This results in a more economical process from an initial capital and operating cost versus conducting the 3-steps sequentially.

    摘要翻译: 公开了一种从TCP制造HFO-1234yf的方法,其包括在气相中将TCP(四氯丙烯)氢氟化为HCFC-1233xf,然后在液相中HCFC-1233xf氢氟化为HCFC-244bb的三个整合步骤 然后在液相或汽相中进行脱氯化氢以产生HFO-1234yf。 气相氢氟化在比液相氢氟化更高的压力下进行,从而不需要压缩和/或中间回收。 此外,将由该反应生成的任何HCl进料至液相氢氟化部分以促进搅拌和混合。 这导致了从初始资本和运营成本的更经济的过程,而不是依次执行3个步骤。