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    • 10. 发明申请
    • PROCESSES FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE, A PROCESS FOR PRODUCING 1-CHLORO-2,2,3,3,3-PENTAFLUOROPROPANE AND AZEOTROPIC COMPOSITIONS OF 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE WITH HF
    • 生产2,3,3,3-四氟丙烯的方法,生产1-氯-2,2,3,3,3-五氟丙烷和1-氯-2,3,3,3-四氟丙烯的各向异性组合物的方法 HF
    • WO2008054778A3
    • 2008-08-14
    • PCT/US2007022991
    • 2007-10-31
    • DU PONTNAPPA MARIO JRAO V N MALLIKARJUNASIEVERT ALLEN C
    • NAPPA MARIO JRAO V N MALLIKARJUNASIEVERT ALLEN C
    • C07C17/25C07C17/278C07C19/08C07C19/10
    • C07C17/25C07C17/23C07C17/278C07C21/18C07C19/08C07C19/10
    • A process is disclosed for making CH 2 =CFCF 3 . The process involves contacting CH 2 CICF 2 CF 3 with H 2 in a reaction zone in the presence of a catalyst including a catalytically effective amount of palladium supported on a support selected from chromium oxide, fluorinated chromium oxide, chromium fluoride, aluminum oxide, aluminum fluoride and/or fluorinated alumina, to produce CH 2 =CFCF 3 . The mole ratio of H2 to the CH 2 CICF 2 CF 3 fed to the reaction zone is between about 1 :1 and about 4:1. Also disclosed is another process for making CH 2 =CFCF 3 that involves (a) reacting CH 2 CICF 2 CF 3 with H 2 in the presence of a catalytically effective amount of hydrogenation catalyst to form CH 3 CF 2 CF 3 ; and (b) dehydrofluorinating CH 3 CF 2 CF 3 from (a) to form CH 2 =CFCF 3 ;and another process for making CH 2 =CFCF 3 that involves (1 ) dehydrofluorinating CH 2 CICF 2 CF 3 in the presence of a catalytically effective amount of dehydrofluorination catalyst to form CHCI=CFCF 3 ; and (2) hydrogenating CHCI=CFCF 3 from (1 ) in the presence of a hydrogenation catalyst including a catalytically effective amount of palladium supported on a support selected from chromium oxide, fluorinated chromium oxide, chromium fluoride, aluminum oxide, aluminum fluoride and/or fluorinated alumina to form CH 2 =CFCF 3 . Also disclosed is a process for making CH 2 CICF 2 CF 5 . This process involves reacting CH 2 CIF with CF 2 =CF 2 in a reaction zone in the presence of a catalytically effective amount of an aluminum halide composition having a bulk formula of AICI x Br y F 3-x-y wherein the average value of x is O to 3, the average value of y is O to 3-x, provided that the average values of x and y are not both O. Also disclosed is an azeotropic composition including CF 3 CF=CHCI and HF.
    • 公开了一种制造CH 2 = CFCF 3 的方法。 该过程涉及在反应区中使CH 2 CICF 2 CF 3 与H 2 催化剂,所述催化剂包括负载在选自氧化铬,氟化氧化铬,氟化铬,氧化铝,氟化铝和/或氟化氧化铝的载体上的催化有效量的钯,以产生CH = CFCF 3 。 H 2与加入反应区的CH 2 / CICF 2 / CF 3的摩尔比在约1:1和约4:1之间 。 还公开了另一种制备CH = CFCF 3 的方法,该方法涉及(a)使CH 2 CICF 2 在催化有效量的氢化催化剂的存在下与H 2 SUB反应以形成CH 3 SUB 2 CF 3, CF 3 ; 和(b)从(a)脱氢氟化CH 3,形成CH 2 = CFCF 3, 以及另一种制造CH 2 = CFCF 3 的方法,其涉及(1)脱氟化氢CH 2 SUB <3> 在催化有效量的脱氟化氢催化剂存在下反应以形成CHCl = CFCF 3 3; 和(2)在氢化催化剂存在下从(1)氢化CHCl = CFCF 3,所述氢化催化剂包含负载在载体上的催化有效量的钯,所述载体选自氧化铬,氟化氧化铬,氟化铬, 氧化铝,氟化铝和/或氟化氧化铝以形成CH 2 = CFCF 3。 还公开了制造CH 2 CICF 2 CF 5 的方法。 该过程涉及在催化有效量的卤化铝存在下,在反应区中使CH 2 SUB CIF与CF 2 SUB = CF 2反应。 其中,x的平均值为0至3,其平均值为0至3,其中所述组合物具有AICI x Br F <3> xy < y是O至3-x,条件是x和y的平均值不都为O.还公开了包括CF 3 CF = CHCl和HF的共沸组合物。