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    • 9. 发明申请
    • PROCESS FOR THE MANUFACTURE OF HYDROFLUOROOLEFINS
    • 氢氟虫腈的制备方法
    • WO2013074324A1
    • 2013-05-23
    • PCT/US2012/063649
    • 2012-11-06
    • ARKEMA INC.ELSHEIKH, Maher Y.BONNET, PhilippeCHEN, Benjamin Bin
    • ELSHEIKH, Maher Y.BONNET, PhilippeCHEN, Benjamin Bin
    • C07C17/00C07C17/20C07C21/20
    • C07C17/206C07C17/358C07C21/18C07C21/04
    • A process for the synthesis of hydrocchlorofluoro olefins (HCFO) and/or hydrofluoroolefins (HFO). The process is based on the steps of fluorination of hydrochloropropenes or hydrochloropropanes to form hydrochlorofluoropropenes and/or hydrofluoropropenes, followed by gas phase, catalytic fluorination of the hydrochlorofluoropropenes to form hydrofluoropropenes. The process produces 1,1, 1,2- tetrafluoropropene (HFO-1234yf) from "feedstock" such as tetrachloropropenes, 1,1,2,3 tetrachloropropene (HCO-1230xa) and/or 1,1,1,2 tetrachloropropene (HCO-1230xf) or pentachloropropanes, HCC-240db, HCC-240aa and/or HCC-240ab which are precursors of the tetrachloropropenes. The process of the present invention comprises the steps of: a) liquid phase or gas phase fluorination of tetrachloropropene (which may be formed via gas phase fluorination of pentachloropropane), in the presence or absence of homogenous or heterogeneous catalyst; to form the intermediate product HCFO- 1233xf and thereafter b) gas phase, catalytic fluorination of the intermediate HCFO-1233xf to form the hydrofluoropropene product 1,1,1,2-tetrafluoropropene (HFO-1234yf).
    • 一种合成氢氟氯氟烯烃(HCFO)和/或氢氟烯烃(HFO)的方法。 该方法基于氢氯丙烯或氢氯丙烷氟化以形成氢氯氟丙烯和/或氢氟丙烯的步骤,然后进行气相,氢氯氟丙烯的催化氟化以形成氢氟丙烯。 该方法从“原料”产生1,1,1,2-四氟丙烯(HFO-1234yf),例如四氯丙烯,1,1,2,3四氯丙烯(HCO-1230xa)和/或1,1,1,2-四氯丙烯( HCO-1230xf)或五氯丙烷,HCC-240db,HCC-240aa和/或HCC-240ab,它们是四氯丙烯的前体。 本发明的方法包括以下步骤:a)在存在或不存在均相或多相催化剂的情况下,四氯丙烯(其可通过五氯丙烷的气相氟化形成)进行液相或气相氟化; 形成中间产物HCFO-1233xf,然后b)中间体HCFO-1233xf的气相,催化氟化以形成氢氟丙烯产物1,1,1,2-四氟丙烯(HFO-1234yf)。