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    • 22. 发明授权
    • Methods for converting lower alkanes and alkanes to alcohols and diols
    • 将低级烷烃和烷烃转化为醇和二醇的方法
    • US5998679A
    • 1999-12-07
    • US121768
    • 1998-07-26
    • Jorge Miller
    • Jorge Miller
    • C07C29/04C01B7/09C07C17/02C07C17/10C07C29/00C07C29/09C07C29/124C07C31/02C07C31/04C07C31/20C07C29/62
    • C07C29/095C01B7/096C07C17/02C07C17/10Y02P20/582
    • The present invention is directed to methods for converting lower alkanes and alkenes to the corresponding lower alkanols and diols. In the methods of the present invention, a gaseous halogen, preferably bromine, is produced by decomposing a metal halide in a liquid having a melting point below and a boiling point above the decomposition temperature of the metal halide. The preferred liquid is molten, hydrated ferric chloride maintained at a temperature between about 37-280.degree. C. The lower alkane or alkene is halogenated in a gas phase reaction with the produced halogen. The alkyl halide or alkyl dihalide is contacted with a metal hydroxide, preferably an aqueous solution of ferric hydroxide, to regenerate the metal halide and produce the corresponding lower alkanol or diol. The present invention is particularly efficient for converting methane to methanol using ferric bromide to provide the halogen.
    • 本发明涉及将低级烷烃和烯烃转化成相应的低级链烷醇和二醇的方法。 在本发明的方法中,通过在熔点低于和高于金属卤化物的分解温度的沸点的液体中分解金属卤化物来制备气态卤素,优选溴。 优选的液体是熔融的,水合氯化铁保持在约37-280℃之间。低级烷烃或烯烃在与所生产的卤素的气相反应中被卤化。 烷基卤化物或烷基二卤化物与金属氢氧化物,优选氢氧化铁水溶液接触,以再生金属卤化物并产生相应的低级链烷醇或二醇。 本发明特别有效的是使用溴化铁将甲烷转化成甲醇以提供卤素。