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公开(公告)号:US08373010B2
公开(公告)日:2013-02-12
申请号:US12875170
申请日:2010-09-03
IPC分类号: C07C17/25
CPC分类号: C07C17/25 , C07C17/206 , C07C17/354 , C07C21/18 , C07C19/08
摘要: Disclosed is a process for the preparation of 3,3,3-trifluoropropene comprising the steps of; (1) fluorination of 240fa to form 245fa; (2) conversion of 245fa to a cis/trans mixture of 1234ze; (3) hydrogenation of the cis/trans mixture of 1234ze to form 254fb ; and (4) dehydrofluorination of 254fb to produce 3,3,3-trifluoropropene. Alternatively or additionally, a second process for the preparation of the desired compound comprises the following steps; (1) fluorination of HCC-240fa to form HCFC-244fa; (2) conversion of 244fa to a cis/trans mixture of HFO-1234ze; (3) hydrogenation of the cis/trans mixture of 1234ze to form HFC-254fb; and (4) dehydrofluorination of 254fb to produce 3,3,3-trifluoropropene.
摘要翻译: 公开了制备3,3,3-三氟丙烯的方法,包括以下步骤: (1)240fa的氟化以形成245fa; (2)将245fa转化为1234ze的顺式/反式混合物; (3)将1234ze的顺式/反式混合物氢化成254fb; 和(4)254fb的脱氟化氢,得到3,3,3-三氟丙烯。 或者或另外,制备所需化合物的第二种方法包括以下步骤: (1)HCC-240fa氟化形成HCFC-244fa; (2)将244fa转化为HFO-1234ze的顺式/反式混合物; (3)将1234ze的顺式/反式混合物氢化形成HFC-254fb; 和(4)254fb的脱氟化氢,得到3,3,3-三氟丙烯。
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公开(公告)号:US20120178977A1
公开(公告)日:2012-07-12
申请号:US13313085
申请日:2011-12-07
CPC分类号: B01D3/009 , C07C17/206 , C07C17/25 , C07C17/383 , Y02P20/582 , C07C21/18
摘要: Disclosed is a method for the production of 1233xf comprising the continuous low temperature liquid phase reaction of 1,1,1,2,3-pentachloropropane and anhydrous HF, without the use of a catalyst, wherein the reaction takes place in one or more reaction vessels, each one in succession converting a portion of the original reactants fed to the lead reaction vessel and wherein the reactions are run in a continuous fashion.
摘要翻译: 公开了一种制备1233xf的方法,其包括1,1,1,2,3-五氯丙烷和无水HF的连续低温液相反应,不使用催化剂,其中反应在一个或多个反应 容器,每个连续地将一部分原始反应物转化成铅反应容器,其中反应以连续的方式运行。
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公开(公告)号:US08680345B2
公开(公告)日:2014-03-25
申请号:US13313085
申请日:2011-12-07
CPC分类号: B01D3/009 , C07C17/206 , C07C17/25 , C07C17/383 , Y02P20/582 , C07C21/18
摘要: Disclosed is a method for the production of 1233xf comprising the continuous low temperature liquid phase reaction of 1,1,1,2,3-pentachloropropane and anhydrous HF, without the use of a catalyst, wherein the reaction takes place in one or more reaction vessels, each one in succession converting a portion of the original reactants fed to the lead reaction vessel and wherein the reactions are run in a continuous fashion.
摘要翻译: 公开了一种制备1233xf的方法,其包括1,1,1,2,3-五氯丙烷和无水HF的连续低温液相反应,不使用催化剂,其中反应在一个或多个反应 容器,每个连续地将一部分原始反应物转化成铅反应容器,其中反应以连续的方式运行。
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公开(公告)号:US20110207975A9
公开(公告)日:2011-08-25
申请号:US12404130
申请日:2009-03-13
申请人: Daniel C. Merkel , Hsueh Sung Tung , Konstantin A. Pokrovski , Selma Bektesevic , Robert Johnson , Haiyou Wang
发明人: Daniel C. Merkel , Hsueh Sung Tung , Konstantin A. Pokrovski , Selma Bektesevic , Robert Johnson , Haiyou Wang
IPC分类号: C07C17/20
CPC分类号: C07C21/18 , C01B7/035 , C01B7/0706 , C01B7/195 , C07C17/087 , C07C17/10 , C07C17/206 , C07C17/25 , C07C17/383 , Y02P20/125 , Y02P20/582 , C07C19/10
摘要: A method for preparing 2,3,3,3-tetrafluoroprop-1-ene comprising (a) providing a starting composition comprising at least one compound having a structure selected from Formulae I, II and III: CX2═CCl—CH2X (Formula I) CX3—CCl═CH2 (Formula II) CX3—CHCl—CH2X (Formula III) wherein X is independently selected from F, Cl, Br, and I, provided that at least one X is not fluorine; (b) contacting said starting composition with a first fluorinating agent to produce a first intermediate composition comprising 2-chloro-3,3,3-trifluoropropene and a first chlorine-containing byproduct; (c) contacting said first intermediate composition with a second fluorinating agent to produce a second intermediate composition comprising 2-chloro-1,1,1,2-tetrafluoropropane and a second chlorine-containing byproduct; and (d) catalytically dehydrochlorinating at least a portion of said 2-chloro-1,1,1,2-tetrafluoropropane to produce a reaction product comprising 2,3,3,3-tetrafluoroprop-1-ene.
摘要翻译: 一种制备2,3,3,3-四氟丙-1-烯的方法,包括(a)提供起始组合物,其包含至少一种具有选自式I,II和III的结构的化合物:CX2 = CCl-CH2X(式I )CX3-CCl = CH2(式II)CX3-CHCl-CH2X(式III)其中X独立地选自F,Cl,Br和I,条件是至少一个X不是氟; (b)使所述起始组合物与第一氟化剂接触以产生包含2-氯-3,3,3-三氟丙烯和第一含氯副产物的第一中间体组合物; (c)使所述第一中间体组合物与第二氟化剂接触以产生包含2-氯-1,1,1,2-四氟丙烷和第二含氯副产物的第二中间体组合物; 和(d)将至少一部分所述2-氯-1,1,1,2-四氟丙烷催化脱氯化氢以产生包含2,3,3,3-四氟丙-1-烯的反应产物。
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公开(公告)号:US09302963B2
公开(公告)日:2016-04-05
申请号:US13570668
申请日:2012-08-09
IPC分类号: B01J19/00 , B01J19/24 , C07C17/23 , C07C17/25 , C07C17/354 , C07C17/38 , C07C21/18 , C07C17/35 , C07C21/00 , C07C21/02
CPC分类号: C07C17/25 , B01J7/00 , B01J19/0046 , B01J19/14 , B01J2219/00452 , B01J2219/0059 , B01J2219/00594 , B01J2219/0072 , B01J2219/00759 , C07C17/23 , C07C17/354 , C07C17/38 , C07C21/18 , C07C19/08
摘要: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
摘要翻译: 使用单组四个单元操作制备1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯的方法,单元操作是(1)将包含六氟丙烯的原料氢化 和任选的再循环的1,1,1,2,3-五氟丙烯; (2)所需中间体氢氟烷烃如1,1,1,2,3,3-六氟丙烷和/或1,1,1,2,3-五氟丙烷的分离; (3)中间体氢氟烷烃的脱氟化氢以产生所需的1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯,然后进行另一次分离以分离所需产物,并且任选地再循环 的1,1,1,2,3-五氟丙烯。
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公开(公告)号:US08496892B2
公开(公告)日:2013-07-30
申请号:US13362031
申请日:2012-01-31
申请人: Haluk Kopkalli , Yuon Chiu , Orlando George Rodrigues , Gus Cerri , Hsueh Sung Tung , Stephen A. Cottrell
发明人: Haluk Kopkalli , Yuon Chiu , Orlando George Rodrigues , Gus Cerri , Hsueh Sung Tung , Stephen A. Cottrell
CPC分类号: B01J8/067 , B01J2208/00849 , B01J2208/00884 , C07C17/354 , C07C19/08
摘要: Disclosed is a process and apparatus for the catalytic hydrogenation of fluoro-olefins to fluorocarbons where the reaction is carried out in a multi-tube shell and tube reactor. Reactions involving hydrogenation of fluoro-olefins are typically exothermic. In commercial processes where a fluoro-olefin CnH2n−xFx to CnH2n−x2Fx is hydrogenated (e.g., hexafluoropropylene to 236ea, 1225ye to 245eb, and the like), inadequate management or control of heat removal may induce excess hydrogenation, decomposition and hot spots resulting in reduced yields and potential safety issues. In the hydrogenation of fluoro-olefins, it is therefore necessary to control the reaction temperature as precisely as practical to overcome challenges associated with heat management and safety.
摘要翻译: 公开了将氟代烯烃催化氢化成碳氟化合物的方法和装置,其中反应在多管壳管式反应器中进行。 涉及氟代烯烃氢化的反应通常是放热的。 在氟化烯烃CnH2n-xFx至CnH2n-x2Fx被氢化(例如六氟丙烯至236ea,1225ye至245eb等)的商业过程中,不充分的除热控制或控制可能引起过量氢化,分解和热点,导致 降低产量和潜在的安全问题。 在氟代烯烃的氢化中,因此需要精确地控制反应温度以克服与热管理和安全相关的挑战。
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公开(公告)号:US08129574B2
公开(公告)日:2012-03-06
申请号:US12550909
申请日:2009-08-31
申请人: Haluk Kopkalli , Yuon Chiu , Orlando George Rodrigues , Gus Cerri , Hsueh Sung Tung , Stephen A. Cottrell
发明人: Haluk Kopkalli , Yuon Chiu , Orlando George Rodrigues , Gus Cerri , Hsueh Sung Tung , Stephen A. Cottrell
IPC分类号: C07C17/00
CPC分类号: B01J8/067 , B01J2208/00849 , B01J2208/00884 , C07C17/354 , C07C19/08
摘要: Disclosed is a process and apparatus for the catalytic hydrogenation of fluoroolefins to fluorocarbons where the reaction is carried out in a multi-tube shell and tube reactor. Reactions involving hydrogenation of fluoro-olefins are typically exothermic. In commercial processes where a fluoro-olefin C(n)H(2n−x)F(x) to C(n)H(2n−x+2)F(x) is hydrogenated (e.g. hexafluoropropylene to 236ea, 1225ye to 245eb, and the like), inadequate management or control of heat removal may induce excess hydrogenation, decomposition and hot spots resulting in reduced yields and potential safety issues. In the hydrogenation of fluoro-olefins, it is therefore necessary to control the reaction temperature as precisely as practical to overcome challenges associated with heat management and safety.
摘要翻译: 公开了将氟烯烃催化氢化成碳氟化合物的方法和装置,其中反应在多管壳管式反应器中进行。 涉及氟代烯烃氢化的反应通常是放热的。 在氟化烯烃C(n)H(2n-x)F(x)至C(n)H(2n-x + 2)F(x)被氢化(例如六氟丙烯至236ea,1225ye至245eb) ,等等),不充分的除热控制或控制可能引起过度的氢化,分解和热点,导致产量降低和潜在的安全问题。 在氟代烯烃的氢化中,因此需要精确地控制反应温度以克服与热管理和安全相关的挑战。
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公开(公告)号:US20110105807A1
公开(公告)日:2011-05-05
申请号:US12611288
申请日:2009-11-03
IPC分类号: C07C17/25
CPC分类号: C07C21/18 , C01B7/0718 , C01B7/0737 , C01B7/195 , C07C17/087 , C07C17/10 , C07C17/206 , C07C17/25 , Y02P20/125 , C07C19/10
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。
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公开(公告)号:US20110207974A9
公开(公告)日:2011-08-25
申请号:US12466271
申请日:2009-05-14
申请人: Haluk Kopkalli , Yuon Chiu , Hsueh Sung Tung
发明人: Haluk Kopkalli , Yuon Chiu , Hsueh Sung Tung
IPC分类号: C07C17/25
CPC分类号: C07C21/18 , C07C17/087 , C07C17/204 , C07C17/206 , C07C17/25 , C07C19/10
摘要: Disclosed is a process for producing tetrafluoropropene comprising: (a) catalytically fluorinating at least one tetrafluoropropene in a first reactor to produce HCFO-1233xf; (b) reacting said HCFO-1233xf with hydrogen fluoride in a second reactor to produce HCFC-244bb; (c) recycling at least a portion of said HCFC-244bb back to said first reactor as recycled HCFC-244bb; and (d) catalytically dehydrochlorinating said recycled HCFC-244bb in said first reactor to produce HFO-1234yf.
摘要翻译: 公开了一种生产四氟丙烯的方法,包括:(a)在第一反应器中催化氟化至少一种四氟丙烯以产生HCFO-1233xf; (b)在第二反应器中使所述HCFO-1233xf与氟化氢反应以产生HCFC-244bb; (c)将所述HCFC-244bb的至少一部分再循环回所述第一反应器作为再循环HCFC-244bb; 和(d)在所述第一反应器中对所述再循环HCFC-244bb进行催化脱氯化氢以产生HFO-1234yf。
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公开(公告)号:US20090234165A1
公开(公告)日:2009-09-17
申请号:US12402372
申请日:2009-03-11
CPC分类号: C07C17/25 , B01J7/00 , B01J19/0046 , B01J19/14 , B01J2219/00452 , B01J2219/0059 , B01J2219/00594 , B01J2219/0072 , B01J2219/00759 , C07C17/23 , C07C17/354 , C07C17/38 , C07C21/18 , C07C19/08
摘要: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3 -pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
摘要翻译: 使用单组四个单元操作制备1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯的方法,单元操作是(1)将包含六氟丙烯的原料氢化 和任选的再循环的1,1,1,2,3-五氟丙烯; (2)所需中间体氢氟烷烃如1,1,1,2,3,3-六氟丙烷和/或1,1,1,2,3-五氟丙烷的分离; (3)中间体氢氟烷烃的脱氟化氢以产生所需的1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯,然后进行另一次分离以分离所需产物,并且任选地再循环 的1,1,1,2,3-五氟丙烯。
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