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    Process for the reclamation of alkali metal alkylamides
    5.
    发明授权
    Process for the reclamation of alkali metal alkylamides 失效
    碱性金属烷基胺的回收方法

    公开(公告)号：US4051185A

    公开(公告)日：1977-09-27

    申请号：US656839

    申请日：1976-02-10

    申请人： John Fraser Prescott ,  Emerson Cecil Sanford

    发明人： John Fraser Prescott ,  Emerson Cecil Sanford

    IPC分类号： B01J31/40 ,  C01B21/082 ,  C01B21/092 ,  C07C102/00

    CPC分类号： C01B21/082 ,  B01J31/0252 ,  B01J31/4015 ,  C01B21/0926 ,  B01J2531/11 ,  B01J2531/12 ,  B01J2531/13 ,  Y02P20/584

    摘要： Alkali metal alkylamides, for example, potassium methylamide or mixtures of lithium and potassium methylamides, containing impurities may be purified by a novel process. The first step of the process comprises reacting the alkali metal alkylamides, in solution in methylamine, with ammonia to form the corresponding alkali metal amides which precipitate from solution while the impurities remain dissolved. The solid alkali metal amides are then separated from the solution, e.g., by filtration. The solution containing the impurities is distilled; and the distillate, comprised of methylamine containing some ammonia, is contacted with the alkali metal amides under reflux conditions and then the solution is rectified to remove ammonia. Under these conditions the alkali metal amides react with the methylamine to form a solution in methylamine of alkali metal methylamides freed of impurities. The solution is suitable for use as a catalyst for a deuterium enrichment process.

    Method for preparing metal cyanide catalysts using zero valent metals
    8.
    发明授权
    Method for preparing metal cyanide catalysts using zero valent metals 失效
    使用零价金属制备金属氰化物催化剂的方法

    公开(公告)号：US06900156B2

    公开(公告)日：2005-05-31

    申请号：US10506067

    申请日：2003-03-18

    申请人： Richard M. Wehmeyer

    发明人： Richard M. Wehmeyer

    IPC分类号： C08G65/10 ,  B01J23/80 ,  B01J27/26 ,  B01J31/00 ,  B01J31/02 ,  B01J31/06 ,  B01J37/03 ,  C08G65/26

    CPC分类号： B01J31/2208 ,  B01J27/26 ,  B01J37/031 ,  B01J2231/14 ,  B01J2531/13 ,  B01J2531/845 ,  C08G65/2663

    摘要： Metal cyanide catalyst dispersions in initiator compounds and/or polyether are prepared by reacting an acidic metal cyanide compound a zero valent metal in a medium that is a solvent for the acidic metal cyanide compound. The resulting catalyst slurry may be combined with an initiator and/or polyether and stripped to form a catalyst/initiator or catalyst/polyether slurry. Using this method, an active alkylene oxide polymerization catalyst is prepared, and the preparation method is greatly simplified. Further, it is necessary to use a separate organic complexing agent in the preparation.

    摘要翻译： 在引发剂化合物和/或聚醚中的金属氰化物催化剂分散体通过使酸金属氰化物化合物为零价金属在作为酸性金属氰化物化合物的溶剂的介质中反应来制备。 所得催化剂浆料可与引发剂和/或聚醚组合并汽提以形成催化剂/引发剂或催化剂/聚醚浆料。 使用该方法制备活性烯化氧聚合催化剂，并且制备方法大大简化。 此外，在制备中需要使用单独的有机络合剂。

    Method for preparing metal cyanide catalysts using zero valent metals
    9.
    发明申请
    Method for preparing metal cyanide catalysts using zero valent metals 失效
    使用零价金属制备金属氰化物催化剂的方法

    公开(公告)号：US20050043171A1

    公开(公告)日：2005-02-24

    申请号：US10506067

    申请日：2003-03-18

    申请人： Richard Wehmeyer

    发明人： Richard Wehmeyer

    IPC分类号： C08G65/10 ,  B01J23/80 ,  B01J27/26 ,  B01J31/00 ,  B01J31/02 ,  B01J31/06 ,  B01J37/03 ,  C08G65/26

    CPC分类号： B01J31/2208 ,  B01J27/26 ,  B01J37/031 ,  B01J2231/14 ,  B01J2531/13 ,  B01J2531/845 ,  C08G65/2663

    摘要： Metal cyanide catalyst dispersions in initiator compounds and/or polyether are prepared by reacting an acidic metal cyanide compound a zero valent metal in a medium that is a solvent for the acidic metal cyanide compound. The resulting catalyst slurry may be combined with an initiator and/or polyether and stripped to form a catalyst/initiator or catalyst/polyether slurry. Using this method, an active alkylene oxide polymerization catalyst is prepared, and the preparation method is greatly simplified. Further, it is not necessary to use a separate organic complexing agent in the preparation.

    摘要翻译： 在引发剂化合物和/或聚醚中的金属氰化物催化剂分散体通过使酸金属氰化物化合物为零价金属在作为酸性金属氰化物化合物的溶剂的介质中反应来制备。 所得催化剂浆料可与引发剂和/或聚醚组合并汽提以形成催化剂/引发剂或催化剂/聚醚浆料。 使用该方法制备活性烯化氧聚合催化剂，并且制备方法大大简化。 此外，在制备中不需要使用单独的有机络合剂。