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    • 21. 发明申请
    • INTEGRATED PROCESS TO CO-PRODUCE 1,1,1,3,3-PENTAFLUOROPROPANE, TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE and TRANS-1,3,3,3-TETRAFLUOROPROPENE
    • 合成方法共同生产1,1,1,3,3-三氟硼酸,反式-1-氯代-3,3,3-三氟丙烯和TRANS-1,3,3,3-四氯丙烯
    • US20120271070A1
    • 2012-10-25
    • US13093007
    • 2011-04-25
    • Haiyou WangDaniel C. MerkelKonstantin A. PokrovskiHsueh Sung TungIan Shankland
    • Haiyou WangDaniel C. MerkelKonstantin A. PokrovskiHsueh Sung TungIan Shankland
    • C07C17/38C07C17/25
    • C07C17/206C07B2200/09C07C17/087C07C17/25C07C17/383Y02P20/125C07C19/10C07C19/08C07C21/18
    • Disclosed is a fully integrated process for making 1,1,1,3,3-pentafluoropropane (HFC-245fa), trans-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)), and trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)). The chemistry involves (a) the reaction of 1,1,1,3,3-pentachloropropane (HCC-240fa), or a derivative thereof selected from 1,1,3,3-tetrachloropropene and 1,3,3,3-tetrachloropropene, with anhydrous HF in excess in the presence of a catalyst in a liquid-phase reactor in such a way as to co-produce HCFO-1233zd, HFO-1234ze, HCFC-244fa (3-chloro-1,1,1,3-tetrafluoropropane), and HFC-245fa in a first reactor; (b) the reaction of HCFO-1233zd and HFO-1234ze with HCl in excess in the presence of a catalyst in a second reactor to convert these two olefins into HCFC-243fa and HCFC-244fa, respectively; (c) the reaction of HCFC-243fa and HCFC-244fa over a dehydrochlorination catalyst or in a caustic solution in a third reactor to form HCFO-1233zd and HFO-1234ze; and (d) the reaction of HCFO-1233zd(Z) and HFO-1234ze(Z) in the presence of a catalyst in a fourth reactor to form trans-1233zd and trans-1234ze, respectively.
    • 公开了制备1,1,1,3,3-五氟丙烷(HFC-245fa),反式-1-氯-3,3,3-三氟丙烯(HCFO-1233zd(E))的完全一体化方法, 1,3,3,3-四氟丙烯(HFO-1234ze(E))。 该化学方法包括(a)1,1,1,3,3-五氯丙烷(HCC-240fa)或其衍生物选自1,1,3,3-四氯丙烯和1,3,3,3-四氯丙烯的反应, 四氯丙烯,在催化剂存在下,在液相反应器中以无水HF过剩,以共同生产HCFO-1233zd,HFO-1234ze,HCFC-244fa(3-氯-1,1,1, 3-四氟丙烷)和HFC-245fa在第一反应器中; (b)HCFO-1233zd和HFO-1234ze与HCl在过渡催化剂存在下在第二反应器中的反应,分别将这两种烯烃转化为HCFC-243fa和HCFC-244fa; (c)HCFC-243fa和HCFC-244fa在脱氯化氢催化剂或第三反应器中的苛性碱溶液中的反应,形成HCFO-1233zd和HFO-1234ze; 和(d)HCFO-1233zd(Z)和HFO-1234ze(Z)在催化剂存在下在第四反应器中的反应分别形成反式-1233zd和反式1234ze。
    • 25. 发明授权
    • Process for separating hydrogen fluoride from organic feedstocks
    • 从有机原料中分离氟化氢的方法
    • US08168837B2
    • 2012-05-01
    • US12464666
    • 2009-05-12
    • Daniel C. MerkelKonstantin A. PokrovskiHsueh Sung Tung
    • Daniel C. MerkelKonstantin A. PokrovskiHsueh Sung Tung
    • C07C17/38C09K5/00B01D3/34
    • C07C17/383C07C17/087C07C17/25C07C19/10C07C21/18
    • Provided is a process for purifying an organic feedstock comprising (a) distilling a raw organic feedstock comprising hydrogen fluoride, 2-chloro-1,1,1,2-tetrafluoropropane, and 2-chloro-3,3,3-trifluoropropene to produce a first distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a first bottoms stream rich in hydrogen fluoride; (b) cooling said first distillate stream to produce an intermediate composition comprising an organic layer rich in 2-chloro-1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, and an acid layer rich in hydrogen fluoride; and, optionally but preferably, (c) distilling said organic layer to produce a second distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a second bottoms stream comprising a purified organic feedstock substantially free of hydrogen fluoride.
    • 提供了一种纯化有机原料的方法,其包括(a)蒸馏包含氟化氢,2-氯-1,1,1,2-四氟丙烷和2-氯-3,3,3-三氟丙烯的原始有机原料以产生 包含2-氯-1,1,1,2-四氟丙烷,2-氯-3,3,3-三氟丙烯和氟化氢的类共沸组合物的第一蒸馏物流和富含氟化氢的第一塔底物流 ; (b)冷却所述第一馏出物流以产生包含富含2-氯-1,1,1,2-四氟丙烷和2-氯-3,3,3-三氟丙烯的有机层和富含酸层的中间组合物 在氟化氢中; 和(c)蒸馏所述有机层以产生包含2-氯-1,1,1,2-四氟丙烷的共沸混合物组合物,2-氯-3,3,3-四氯丙烷的第二馏出物流, 三氟丙烯和氟化氢,以及包含基本上不含氟化氢的纯化有机原料的第二塔底物流。
    • 27. 发明申请
    • PROCESS FOR SEPARATING HYDROGEN FLUORIDE FROM ORGANIC FEEDSTOCKS
    • 从有机饲料中分离氟化氢的方法
    • US20090287027A1
    • 2009-11-19
    • US12464666
    • 2009-05-12
    • Daniel C. MerkelKonstantin A. PokrovskiHsueh Sung Tung
    • Daniel C. MerkelKonstantin A. PokrovskiHsueh Sung Tung
    • C07C19/08
    • C07C17/383C07C17/087C07C17/25C07C19/10C07C21/18
    • Provided is a process for purifying an organic feedstock comprising (a) distilling a raw organic feedstock comprising hydrogen fluoride, 2-chloro-1,1,1,2-tetrafluoropropane, and 2-chloro-3,3,3-trifluoropropene to produce a first distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a first bottoms stream rich in hydrogen fluoride; (b) cooling said first distillate stream to produce an intermediate composition comprising an organic layer rich in 2-chloro-1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, and an acid layer rich in hydrogen fluoride; and, optionally but preferably, (c) distilling said organic layer to produce a second distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a second bottoms stream comprising a purified organic feedstock substantially free of hydrogen fluoride.
    • 提供了一种纯化有机原料的方法,其包括(a)蒸馏包含氟化氢,2-氯-1,1,1,2-四氟丙烷和2-氯-3,3,3-三氟丙烯的原始有机原料以产生 包含2-氯-1,1,1,2-四氟丙烷,2-氯-3,3,3-三氟丙烯和氟化氢的类共沸组合物的第一蒸馏物流和富含氟化氢的第一塔底物流 ; (b)冷却所述第一馏出物流以产生包含富含2-氯-1,1,1,2-四氟丙烷和2-氯-3,3,3-三氟丙烯的有机层和富含酸层的中间组合物 在氟化氢中; 和(c)蒸馏所述有机层以产生包含2-氯-1,1,1,2-四氟丙烷,2-氯-3,3,3-四氯丙烷的类共沸组合物的第二馏出物流, 三氟丙烯和氟化氢,以及包含基本上不含氟化氢的纯化有机原料的第二塔底物流。