Methods to produce 3,3,3-trifluoropropene
    11.
    发明授权
    Methods to produce 3,3,3-trifluoropropene 有权
    制备3,3,3-三氟丙烯的方法

    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

    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。

    INTEGRATED PROCESS TO PRODUCE 2,3,3,3-TETRAFLUOROPROPENE
    14.
    发明申请
    INTEGRATED PROCESS TO PRODUCE 2,3,3,3-TETRAFLUOROPROPENE 有权
    综合方法生产2,3,3,3-四氯丙烯

    公开(公告)号:US20110207975A9

    公开(公告)日:2011-08-25

    申请号:US12404130

    申请日:2009-03-13

    IPC分类号: C07C17/20

    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。

    Hydrogenation process for fluorocarbons
    16.
    发明授权
    Hydrogenation process for fluorocarbons 有权
    碳氟化合物的氢化方法

    公开(公告)号:US08496892B2

    公开(公告)日:2013-07-30

    申请号:US13362031

    申请日:2012-01-31

    IPC分类号: B01J8/00 B01J8/44

    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。

    Hydrogenation process for fluorocarbons
    17.
    发明授权
    Hydrogenation process for fluorocarbons 有权
    碳氟化合物的氢化方法

    公开(公告)号:US08129574B2

    公开(公告)日:2012-03-06

    申请号:US12550909

    申请日:2009-08-31

    IPC分类号: C07C17/00

    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。

    Integrated Process for Fluoro-Olefin Production
    18.
    发明申请
    Integrated Process for Fluoro-Olefin Production 有权
    氟烯烃生产的综合工艺

    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

    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。

    METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS
    19.
    发明申请
    METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS 有权
    生产氟化有机化合物的方法

    公开(公告)号:US20110207974A9

    公开(公告)日:2011-08-25

    申请号:US12466271

    申请日:2009-05-14

    IPC分类号: C07C17/25

    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。