DEHYDROFLUORINATION OF PENTAFLUOROALKANES TO FORM TETRAFLUOROOLEFINS
    41.
    发明申请
    DEHYDROFLUORINATION OF PENTAFLUOROALKANES TO FORM TETRAFLUOROOLEFINS 有权
    二氟甲磺酸脱氢形成四氢呋喃

    公开(公告)号:US20130060069A1

    公开(公告)日:2013-03-07

    申请号:US13695807

    申请日:2011-05-03

    IPC分类号: C07C17/25

    摘要: A method for producing a tetrafluoroolefin, such as 2,3,3,3-tetrafluoropropene (HFO-123434), comprises dehydrofluorinating a pentafluoroalkane in a gas phase in the presence of a catalyst comprising chromium oxyfluoride. In a preferred embodiment, 2,3,3,3-tetrafluoropropene (HFO-1234yf) is produced by forming a catalyst comprising chromium oxyfluoride by calcining CrF3?xH2O, where x is 1-10, in the presence of a flowing gas comprising nitrogen to form a calcined chromium oxyfluoride, and dehydrofluorinating 1,1,1,2,2-pentafluoropropane (HFC-245cb) in a gas phase in the presence of the catalyst to form the 2,3,3,3-tetrafluoropropene (HFO-1234yf).

    摘要翻译: 一种生产四氟烯烃的方法,如2,3,3,3-四氟丙烯(HFO-123434),包括在包含氟氧化铬的催化剂存在下,在气相中脱氟氟化五氟烷烃。 在优选的实施方案中,通过在包含氮气的流动气体存在下,通过煅烧CrF 3·xH 2 O(其中x为1-10)形成包含氟氧化铬的催化剂来生产2,3,3,3-四氟丙烯(HFO-1234yf) 形成煅烧的氟氧化铬,在催化剂存在下,在气相中脱氟化氢化1,1,1,2,2-五氟丙烷(HFC-245cb),形成2,3,3,3-四氟丙烯(HFO- 1234yf)。

    Process for aryl-aryl carbon to carbon bond formation by arylation of aryl halide or an aromatic compound
    48.
    发明申请
    Process for aryl-aryl carbon to carbon bond formation by arylation of aryl halide or an aromatic compound 审中-公开
    通过芳基卤化物或芳族化合物的芳基化形成芳基 - 芳基碳与碳键的方法

    公开(公告)号:US20050227863A1

    公开(公告)日:2005-10-13

    申请号:US10814860

    申请日:2004-03-31

    摘要: A solid catalyst, consisting of partially halogenated metal oxide or mixed metal oxide or zeolite or zeolite-like solid, represented by a general formula: X(a)/PbMOc(OH)d wherein, X is halogen element selected from F, Cl, Br and I; P is phosphorous element; M is at least one metallic element selected from alkaline earth metals, rare earth metals, group IIIa metals, non-noble transition metals, Sn, Sb, Bi, Si, thorium and uranium; O is oxygen; H is hydrogen; a is the concentration of halogen element X present in the catalyst in the range from 0.01 wt % to 50 wt %; b is the mole ratio of P to M in the range from zero to 1.0; c and d are the number of oxygen and OH groups, respectively, required to satisfy the valence requirement of the metallic and non-metallic elements (M and P); and the ratio of d to c in the range from zero to about 1.0, with or without any catalyst support, useful for the Friedel-Crafts reactions and also its method of preparation are disclosed.

    摘要翻译: 由以下通式表示的部分卤化金属氧化物或混合金属氧化物或沸石或类似沸石的固体组成的固体催化剂:<?in-line-formula description =“In-Line Formulas”end =“lead”?> α(in)-in-line-formula description =“In-line Formulas”end =“尾”→其中,X是选自F,Cl,Br和I的卤素元素; P是磷元素; M是选自碱土金属,稀土金属,IIIa族金属,非贵金属过渡金属,Sn,Sb,Bi,Si,钍和铀中的至少一种金属元素; O是氧; H是氢; a是催化剂中存在的卤素元素X的浓度在0.01重量%至50重量%的范围内; b是P与M的摩尔比在0至1.0的范围内; c和d分别是满足金属和非金属元素(M和P)的化合价要求所需的氧和OH基数; 并且公开了对于Friedel-Crafts反应可用的有或没有任何催化剂载体的d至c在0至约1.0的范围内的比率,以及其制备方法。

    Materials and methods for the production and purification of chlorofluorocarbons and hydrofluorocarbons
    49.
    发明申请
    Materials and methods for the production and purification of chlorofluorocarbons and hydrofluorocarbons 失效
    用于生产和净化氯氟烃和氢氟碳化物的材料和方法

    公开(公告)号:US20040102664A1

    公开(公告)日:2004-05-27

    申请号:US10699491

    申请日:2003-10-31

    IPC分类号: C07C017/08 C07C019/08

    摘要: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.

    摘要翻译: 提供了用于生产基本上异构纯的全卤代和部分卤代化合物的方法和材料。 本发明的一个实施方案提供了生产基本上异构纯的CFC-216aa的方法。 其它实施方案包括生产CFC-217ba和HFC-227ea的方法。 本发明的具体实施方案提供了将氯氟烃与其它氯氟烃分开的分离技术以及卤代化合物异构体的分离。 本发明的其它实施方案提供催化合成技术,其显示延长的催化剂寿命。 在其它实施方案中,本发明提供用于纯化异构体混合物的催化技术。

    Processes for purifying chlorofluorinated compounds
    50.
    发明申请
    Processes for purifying chlorofluorinated compounds 失效
    氯氟化合物的净化方法

    公开(公告)号:US20040102662A1

    公开(公告)日:2004-05-27

    申请号:US10698730

    申请日:2003-10-31

    IPC分类号: C07C017/08 C07C019/08

    摘要: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.

    摘要翻译: 提供了用于生产基本上异构纯的全卤代和部分卤代化合物的方法和材料。 本发明的一个实施方案提供了生产基本上异构纯的CFC-216aa的方法。 其它实施方案包括生产CFC-217ba和HFC-227ea的方法。 本发明的具体实施方案提供了将氯氟烃与其它氯氟烃分开的分离技术以及卤代化合物异构体的分离。 本发明的其它实施方案提供催化合成技术,其显示延长的催化剂寿命。 在其它实施方案中,本发明提供用于纯化异构体混合物的催化技术。