Process for the production of 1,1,1,3,3,3-hexafluoropropane
    41.
    发明授权
    Process for the production of 1,1,1,3,3,3-hexafluoropropane 失效
    生产1,1,1,3,3,3-六氟丙烷的方法

    公开(公告)号:US07524999B2

    公开(公告)日:2009-04-28

    申请号:US11792644

    申请日:2005-12-19

    IPC分类号: C07C17/00 C07C17/20

    摘要: A process for the preparation of 1,1,1,3,3,3-hexafluoropropane is disclosed. The process involves (a) contacting at least one halopropane of the formula CF3CH2CHyX3-y (where each X is independently F, Cl or Br, and y is 3, 2, or 1) with Cl?2#191 in the presence of light or a free radical initiator to produce a mixture comprising CF3CH2CCIyX3-y; (b) contacting the CF3CH2CCIyX3-y produced in step (a) with HF, optionally in the presence of a fluorination catalyst, to produce a product mixture comprising CF3CH2CF3; and (c) recovering CF3CH2CF3 from the mixture produced in step (b).

    摘要翻译: 公开了制备1,1,1,3,3,3-六氟丙烷的方法。 该方法包括(a)在光存在下,将Cl 3 CH 2 CHyX 3-y(其中每个X独立地为F,Cl或Br,y为2,3或2)的至少一种卤代丙烷与Cl 2 或自由基引发剂以产生包含CF 3 CH 2 CCl 3 X 3-y的混合物; (b)任选地在氟化催化剂存在下使步骤(a)中产生的CF 3 CH 2 CCl 3 X 3-y与HF接触,以产生包含CF 3 CH 2 CF 3的产物混合物; 和(c)从步骤(b)中制备的混合物中回收CF 3 CH 2 CF 3。

    Processes for producing 2,3,3,3-tetrafluoropropene and/or 1,2,3,3-tetrafluoropropene
    47.
    发明授权
    Processes for producing 2,3,3,3-tetrafluoropropene and/or 1,2,3,3-tetrafluoropropene 失效
    制备2,3,3,3-四氟丙烯和/或1,2,3,3-四氟丙烯的方法

    公开(公告)号:US08133406B2

    公开(公告)日:2012-03-13

    申请号:US12446063

    申请日:2007-10-31

    IPC分类号: C09K5/04 C11D7/30 C07C17/25

    摘要: A process is disclosed for making CF3CF═CH2 or mixtures thereof with CHF2CF═CHF. This process involves (a) reacting CHCl2CF2CF3, and optionally CHClFCF2CClF2, with H2 in the presence of a catalytically effective amount of a hydrogenation catalyst to form CH3CF2CF3 and, when CHClFCF2CClF2 is present, CH2FCF2CHF2; (b) dehydrofluorinating CH3CF2CF3, and optionally any CH2FCF2CHF2, from (a) to form a product mixture including CF3CF═CH2 and, if CH2FCF2CHF2 is present, CHF2CF═CHF; and optionally (c) recovering CF3CF═CH2, or a mixture thereof with CHF2CF═CHF from the product mixture formed in (b) and/or (d) separating at least a portion of any CHF2CF═CHF in the product mixture formed in (b) from the CF3CF═CH2 in the product mixture formed in (b).

    摘要翻译: 公开了制备CF 3CF≡CH2或其与CHF 2 CF = CHF的混合物的方法。 该方法包括(a)在催化有效量的氢化催化剂存在下使CHCl 2 CF 2 CF 3和任选的CHClFCF 2 CClF 2与H 2反应以形成CH 3 CF 2 CF 3,并且当CHClFCF 2 CClF 2存在时,CH 2 FCF 2 CHF 2; (b)从(a)得到(CF 3 CF 2 CH 2)和(如果存在CH 2 CF 2 CHF 2)的产物混合物的CH 3 CF 2 CF 3和任选的任何任何CH 2 CF 2 CHF 2脱氟氟化CHF 2 CF = CHF; 和(c)从(b)和/或(d)中形成的产物混合物中回收CF 3 CF = CH 2或其与CHF 2 CF = CHF的混合物,从而分离出在(b)中形成的产物混合物中的至少一部分CHF 2 CF = CHF, b)从(b)中形成的产品混合物中的CF 3CF≡CH2。

    PROCESS FOR THE MANUFACTURE FLUOROCARBONS
    48.
    发明申请
    PROCESS FOR THE MANUFACTURE FLUOROCARBONS 失效
    制造氟化物的方法

    公开(公告)号:US20110237847A1

    公开(公告)日:2011-09-29

    申请号:US13153580

    申请日:2011-06-06

    IPC分类号: C07C17/38 C09K3/00

    摘要: Halocarbons of the structure CF3CF2CH2X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2-fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase under substantially anhydrous conditions, in the absence of added catalyst to partially fluorinate said 2-fluorochloropropane; contacting said partially fluorinated 2-fluorochloropropane with at least the stoichiometric molar equivalent of hydrogen fluoride under substantially anhydrous conditions, in the presence of at least one fluorination catalyst in a second fluorination step; removing said reaction products from contact with said catalyst, and isolating a substantial yield of at least 1,1,1,2,2,3-hexafluoropropane or 1,1,1,2,2, penta-3-chloropropane, or mixtures thereof, respectively.

    摘要翻译: 结构CF 3 CF 2 CH 2 X的卤代烃,其中X是F或Cl或其混合物,其通过以下步骤制备:在基本上无水条件下,在气相或液相中的第一氟化步骤中使至少一种2-氟氯丙烷与氟化氢接触, 加入催化剂部分氟化所述2-氟氯丙烷; 在第二次氟化步骤中,在至少一种氟化催化剂的存在下,在基本无水的条件下使所述部分氟化的2-氟氯丙烷与化学计量摩尔当量的氟化氢接触; 除去所述反应产物不与所述催化剂接触,并分离出至少1,1,1,2,2,3-六氟丙烷或1,1,1,2,2,五-3-氯丙烷或其混合物的实质产率 分别。

    Tetrafluoropropene production processes
    50.
    发明授权
    Tetrafluoropropene production processes 有权
    四氟丙烯生产工艺

    公开(公告)号:US07722781B2

    公开(公告)日:2010-05-25

    申请号:US12301070

    申请日:2007-06-22

    IPC分类号: C09K5/04 C07C17/25

    摘要: A process is disclosed for the manufacture of CF3CF═CH2 and CF3CH═CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF═CH2 and CF3CH═CHF, and recovering said CF3CF═CH2 and CF3CH═CHF from the product mixture. The present invention also provides a composition comprising (a) the Z-isomer of CF3CH═CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z—CF3CH═CHF.

    摘要翻译: 公开了用于制造CF 3CF≡CH2和CF 3 CH = CHF的方法。 该方法包括在脱氟化氢催化剂存在下对CF 3 CHFCH 2 F进行脱氟化氢,以产生包含CF 3CF≡CH2和CF 3 CH = CHF的产物混合物,并从产物混合物中回收所述CF 3CF≡CH2和CF 3 CH = CHF。 本发明还提供了包含(a)CF 3 CH = CHF的Z-异构体和(b)HF的组合物; 其中HF以有效量存在以与Z-CF 3 CH = CHF形成共沸组合。