METHOD FOR MITIGATING THE FORMATION OF BY-PRODUCTS DURING THE PRODUCTION OF HALOALKANE COMPOUNDS
    31.
    发明申请
    METHOD FOR MITIGATING THE FORMATION OF BY-PRODUCTS DURING THE PRODUCTION OF HALOALKANE COMPOUNDS 有权
    在制备HALOALKANE化合物时减少副产物形成的方法

    公开(公告)号:US20120310021A1

    公开(公告)日:2012-12-06

    申请号:US13481121

    申请日:2012-05-25

    IPC分类号: C07C17/275

    摘要: Disclosed is a process for the manufacture of haloalkane compounds, and more particularly, an improved process for the manufacture of the compound 1,1,1,3,3-penta-chloropropane (HCC-240fa), which mitigates the formation of by-products from vinyl chloride (CH2═CHCl). The present invention is also useful in the manufacture of other haloalkane compounds such as HCC-250 and HCC-360. One embodiment of the invention comprises a method for mitigating 1,1,3,3,5,5-hexachloropentane and 1,1,1,3,5,5-hexachloropentane formation in the HCC-240fa manufacturing process, in which FeCl3, is introduced to a reactor only after the start-up phase has ended and a continuous operation has started. In a preferred embodiment, “pre-chelated” FeCl3, which is concentrated in a catalyst recovery column, is introduced to reactor after the continuous operation has started.

    摘要翻译: 公开了一种制备卤代烷烃化合物的方法,更具体地说,涉及制备化合物1,1,1,3,3-五氯丙烷(HCC-240fa)的改进方法,其减少副产物的形成, 氯乙烯(CH 2 = CHCl)的产物。 本发明也可用于制备其它卤代烷烃化合物如HCC-250和HCC-360。 本发明的一个实施方案包括在HCC-240fa制造方法中减轻1,1,3,3,5,5-六氯戊烷和1,1,1,3,5,5-六氯戊烷形成的方法,其中FeCl 3, 仅在启动阶段结束并且连续运行已经开始之后被引入反应器。 在优选的实施方案中,将浓缩在催化剂回收塔中的预螯合的FeCl 3在连续操作开始之后引入反应器。

    Integrated process to produce 2,3,3,3-tetrafluoropropene
    32.
    发明授权
    Integrated process to produce 2,3,3,3-tetrafluoropropene 有权
    一体化方法生产2,3,3,3-四氟丙烯

    公开(公告)号:US08058486B2

    公开(公告)日:2011-11-15

    申请号:US12404130

    申请日:2009-03-13

    IPC分类号: C07C17/25

    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。

    Process for dehydrofluorination of 3-chloro-1,1,1,3-tetrafluoropropane to 1-chloro-3,3,3-trifluoropropene
    33.
    发明授权
    Process for dehydrofluorination of 3-chloro-1,1,1,3-tetrafluoropropane to 1-chloro-3,3,3-trifluoropropene 有权
    3-氯-1,1,1,3-四氟丙烷脱氟化氢至1-氯-3,3,3-三氟丙烯的方法

    公开(公告)号:US07829747B2

    公开(公告)日:2010-11-09

    申请号:US12419002

    申请日:2009-04-06

    IPC分类号: C07C17/00

    CPC分类号: C07C17/25 C07C21/18

    摘要: A process for making 1-chloro-3,3,3-trifluoropropene. The process has the following step: dehydrofluorinating 3-chloro-1,1,1,3-tetrafluoropropane under conditions sufficient to effect dehydrofluorination in the presence of a catalyst. Preferred catalysts are selected from the group consisting of (i) one or more halogenated trivalent or higher valent metal oxides, (ii) one or more trivalent or higher valent metal halides, and (iii) one or more natural or synthetic graphite materials.

    摘要翻译: 制备1-氯-3,3,3-三氟丙烯的方法。 该方法具有以下步骤:在足以在催化剂存在下进行脱氟化氢的条件下,将3-氯-1,1,1,3-四氟丙烷脱氟化氢。 优选的催化剂选自(i)一种或多种卤代三价或更高价金属氧化物,(ii)一种或多种三价或更高价金属卤化物,和(iii)一种或多种天然或合成石墨材料。

    Process for geometric isomerization of halogenated olefins
    34.
    发明授权
    Process for geometric isomerization of halogenated olefins 有权
    卤代烯烃几何异构化方法

    公开(公告)号:US07709691B2

    公开(公告)日:2010-05-04

    申请号:US12499509

    申请日:2009-07-08

    IPC分类号: C07C17/00

    CPC分类号: C07C17/358 C07C21/18

    摘要: Disclosed are processes for the conversion of isomerizable halogenated C2-C6 olefins from one geometric form to a more preferred geometric form. Preferred process aspects comprise converting C2-C6 olefin in a cis-form to a trans-form comprising exposing the cis-form of the compound, preferably contained in process stream, to conditions effective to convert at least about 50 percent, and even more preferably at least about 70 percent, of the cis-form compound to the trans-form compound. Preferably the catalyst comprises at least one Lewis acid metal fluoride.

    摘要翻译: 公开了将可异构化的卤代C 2 -C 6烯烃从一种几何形式转化为更优选的几何形式的方法。 优选的方法方面包括将顺式形式的C 2 -C 6烯烃转化为反式,其包括将顺式形式的化合物(优选包含在工艺流中)暴露于有效转化至少约50%,甚至更优选 至少约70%的顺式化合物转化成反式化合物。 优选地,催化剂包含至少一种路易斯酸金属氟化物。

    PROCESS FOR DEHYDROFLUORINATION OF 3-CHLORO-1,1,1,3-TETRAFLUOROPROPANE TO 1-CHLORO-3,3,3-TRIFLUOROPROPENE
    36.
    发明申请
    PROCESS FOR DEHYDROFLUORINATION OF 3-CHLORO-1,1,1,3-TETRAFLUOROPROPANE TO 1-CHLORO-3,3,3-TRIFLUOROPROPENE 有权
    3-氯代-1,1,1,3-四氢吡喃的脱氢方法制备1-氯-3,3,3-三氟硼烷的方法

    公开(公告)号:US20090270661A1

    公开(公告)日:2009-10-29

    申请号:US12419002

    申请日:2009-04-06

    IPC分类号: C07C17/23

    CPC分类号: C07C17/25 C07C21/18

    摘要: A process for making 1-chloro-3,3,3-trifluoropropene. The process has the following step: dehydrofluorinating 3-chloro-1,1,1,3-tetrafluoropropane under conditions sufficient to effect dehydrofluorination in the presence of a catalyst. Preferred catalysts are selected from the group consisting of (i) one or more halogenated trivalent or higher valent metal oxides, (ii) one or more trivalent or higher valent metal halides, and (iii) one or more natural or synthetic graphite materials.

    摘要翻译: 制备1-氯-3,3,3-三氟丙烯的方法。 该方法具有以下步骤:在足以在催化剂存在下进行脱氟化氢的条件下,将3-氯-1,1,1,3-四氟丙烷脱氟化氢。 优选的催化剂选自(i)一种或多种卤代三价或更高价金属氧化物,(ii)一种或多种三价或更高价金属卤化物,和(iii)一种或多种天然或合成石墨材料。

    Processes for selective dehydrohalogenation of halogenated alkanes
    37.
    发明申请
    Processes for selective dehydrohalogenation of halogenated alkanes 有权
    用于卤代烷烃选择性脱卤化氢的方法

    公开(公告)号:US20070129579A1

    公开(公告)日:2007-06-07

    申请号:US11588465

    申请日:2006-10-27

    IPC分类号: C07C21/18

    摘要: Disclosed are processes for producing halogenated olefins, and preferably tetrafluorinated propene(s), from one or more alkanes having both fluorine substituents and non-fluorine substituents, preferably with a high degree of conversion and selectivity. Preferably the process comprises the use of a catalyzed reaction in which the catalyst is selected from the group consisting of activated carbons, halogentated mono- and di-valent metal oxides, mono- and di-valent Lewis acid metal halides, zero-valent metals, and combinations of these.

    摘要翻译: 公开了一种或多种具有氟取代基和非氟取代基的烷烃的卤代烯烃,优选四氟化丙烯的制备方法,优选具有高转化率和选择性。 优选地,该方法包括使用催化反应,其中催化剂选自活性炭,卤化一价和二价金属氧化物,一价和二价路易斯酸金属卤化物,零价金属, 以及这些的组合。

    Manufacturing process for HFO-1234ze
    38.
    发明授权
    Manufacturing process for HFO-1234ze 有权
    HFO-1234ze制造工艺

    公开(公告)号:US09255046B2

    公开(公告)日:2016-02-09

    申请号:US12125045

    申请日:2008-05-21

    摘要: Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.

    摘要翻译: 公开了形成HFO-1234ze的方法,以及用于形成包含HFO-1234ze的组合物的方法,通过(a)优选通过脱氟化氢转化五氟丙烷(HFC-245),优选1,1,1,3,3-五氟丙烷(HFC -245fa),优选通过与苛性碱溶液接触,加入到包含顺-HFO-1234ze和反-HFO-1234ze的反应产物中; 并且(b)使至少一部分,优选基本上部分,在某些实施方案中使基本上所有的所述反应产物与至少一种异构化催化剂接触,以将至少一部分,优选至少大部分的顺-HFO- 1234ze在所述反应产物中以反式HFO-1234ze。