Process for synthesis of fluorinated olefins
    2.
    发明授权
    Process for synthesis of fluorinated olefins 有权
    合成氟化烯烃的方法

    公开(公告)号:US09079818B2

    公开(公告)日:2015-07-14

    申请号:US12249958

    申请日:2008-10-12

    摘要: Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise: (a) reacting a compound of formula (I) X1X2  (I) with a compound of formula (II) CX1X2X3CX1═CX1X2  (II) to produce a reaction product comprising a compound of formula (III) CF3CHX1CH2X2  (III), and (b) exposing said compound of formula (III) to reaction conditions effective to convert said compound of formula (III) to a compound of formula (IV) CF3CZ═CH2  (IV) wherein X1, X2, and X3 are each independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine and iodine, provided that X1 and X2 in formula (I) are not both hydrogen and Z is Cl, I, Br, or F.

    摘要翻译: 公开了用于合成氟化烯烃的方法,特别优选的实施方案中,在不饱和的非末端碳上具有F的四氟化烯烃如2,3,3,3-四氟丙烯。 根据一个实施方案的本发明的优选方法通常包括:(a)使式(I)X1X2(I)化合物与式(II)化合物CX1X2X3CX1 = CX1X2(II)反应以产生反应产物,其包含 式(III)化合物,CF 3 CHX 1 CH 2 X 2(III)的化合物,和(b)将式(III)化合物暴露于有效将式(III)化合物转化成式(IV)化合物的反应条件:CF 3 CZ = CH 2 )其中X1,X2和X3各自独立地选自氢,氯,溴,氟和碘,条件是式(I)中的X1和X2不同时为氢,Z为Cl,I,Br, 或F.

    High selectivity process to make dihydrofluoroalkenes
    5.
    发明授权
    High selectivity process to make dihydrofluoroalkenes 有权
    制备二氢氟烯烃的高选择性工艺

    公开(公告)号:US08618339B2

    公开(公告)日:2013-12-31

    申请号:US12110890

    申请日:2008-04-28

    IPC分类号: C07C17/00 C07C21/00

    CPC分类号: C07C17/354 C07C21/18

    摘要: Disclosed is a method for the synthesis of fluorinated alkenes comprising contacting a fluorinated alkyne of the formula R1 C≡C R2, wherein R1 and R2 are independently selected from CF3, C2F5, C3F7, and C4F9, in a pressure vessel, with a Lindlar catalyst, with substantially one molar equivalent of hydrogen, to make the corresponding cis-alkene of formula R1 C≡C R2 with high selectivity, wherein said hydrogen is added in portions over a period of time, so as to produce an initial pressure in the pressure in the vessel of no more than about 100 psi.

    摘要翻译: 公开了一种合成氟化烯烃的方法,包括使式R1 C = C R2的氟化炔,其中R 1和R 2独立地选自CF 3,C 2 F 5,C 3 F 7和C 4 F 9,在压力容器中与Lindlar催化剂 ,具有基本上1摩尔当量的氢气,以高选择性制备式R1 C = C R2的相应顺式烯烃,其中所述氢气在一段时间内分批加入,以便产生压力的初始压力 在容器中不超过约100psi。

    Method for separating halocarbons
    7.
    发明授权
    Method for separating halocarbons 有权
    卤代烃分离方法

    公开(公告)号:US08252965B2

    公开(公告)日:2012-08-28

    申请号:US12540252

    申请日:2009-08-12

    IPC分类号: C07C21/00

    摘要: The invention provides a method for separating halocarbons. In particular, a method for separating 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) based on differences in melting points of these compounds. More particularly the invention pertains to a method for separating HCFC-244bb from HCFO-1233xf which are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).

    摘要翻译: 本发明提供一种分离卤代烃的方法。 特别地,基于这些的熔点的差异,从2-氯-3,3,3-三氟丙烯(HCFO-1233xf)中分离出2-氯-1,1,1,2-四氟丙烷(HCFC-244bb)的方法 化合物。 更具体地说,本发明涉及从HCFO-1233xf中分离HCFC-244bb的方法,其可用作生产2,3,3,3-四氟丙烯(HFO-1234yf)中的中间体。

    Process for the manufacture of fluorinated alkanes
    8.
    发明授权
    Process for the manufacture of fluorinated alkanes 有权
    制造氟化烷烃的方法

    公开(公告)号:US07902410B2

    公开(公告)日:2011-03-08

    申请号:US11588671

    申请日:2006-10-27

    IPC分类号: C07C17/00 C07C21/00

    摘要: A process for the production of fluorinated alkanes by contacting a feed stream containing a fluorinated olefin and a reducing agent, preferably with a first amount of catalyst to produce a fluorinated alkane, at a first conversion level, wherein a first effluent stream contains unreacted fluorinated olefin and reducing agent; and contacting the first effluent stream under conditions effective to produce a higher level of conversion than said conversion level.

    摘要翻译: 通过使包含氟化烯烃和还原剂的进料流,优选与第一量的催化剂接触以产生氟化烷烃,以第一转化水平接触生产氟化烷烃的方法,其中第一流出物流含有未反应的氟化烯烃 和还原剂; 以及在有效地产生比所述转化水平更高水平的转化率的条件下接触第一流出物流。

    Catalytic method for the production of fluoroalkylenes from chlorofluorohydrocarbons
    10.
    发明授权
    Catalytic method for the production of fluoroalkylenes from chlorofluorohydrocarbons 有权
    用于从氯氟烃生产氟代亚烷基的催化方法

    公开(公告)号:US07135601B2

    公开(公告)日:2006-11-14

    申请号:US11091201

    申请日:2005-03-28

    IPC分类号: C07C21/00

    CPC分类号: C07C21/18 C07C17/23 C07C17/25

    摘要: A process for producing a producing a product of the formula: R—CF═CHR1 wherein R is F or CF3 and R1 is F when R is F and is H when R is CF3 by reacting a reactant of the formula: CF3—R2 wherein R2 is selected from and wherein R3 is H, F or Cl and R4 is H or Cl, in the presence of a suitable catalyst, with a reducing agent selected from methane, methyl chloride and mixtures thereof, in a gas phase reaction.

    摘要翻译: 一种生产下式的产物的方法:<?in-line-formula description =“In-line formula”end =“lead”?> R-CF-CHR <1> 当R为F时,R为F或CF 3,R 1为F, 通过使下式的反应物反应,当R为CF 3时为H,其中:<?in-line-formula description =“In-Line Formulas”end =“lead”?> CF 3 < &lt;&lt;&lt;&lt;&lt;线内公式描述=“在线公式”end =“tail”?>其中R 2选自并且其中 R 3是H,F或Cl,R 4是H或Cl,在合适的催化剂存在下,与选自甲烷,氯甲烷和混合物的还原剂 在气相反应中。