Oxidative mono-halogenation of methane
    2.
    发明授权
    Oxidative mono-halogenation of methane 有权
    甲烷的氧化单卤化

    公开(公告)号:US08674149B2

    公开(公告)日:2014-03-18

    申请号:US13123908

    申请日:2009-08-19

    IPC分类号: C07C17/154 C07C19/03

    CPC分类号: C07C17/154 C07C19/03

    摘要: Oxidatively halogenate methane by placing a feedstream that comprises methane, a source of halogen, a source of oxygen and, optionally, a source of diluent gas in contact with a first catalyst (e.g. a solid super acid or a solid super base) that has greater selectivity to methyl halide and carbon monoxide than to methylene halide, trihalomethane or carbon tetrahalide. Improve overall selectivity to methyl halide by using a second catalyst that converts at least part of the feedstream to a mixture of methyl halide, methylene halide, trihalomethane, carbon tetrahalide and unreacted oxygen, and placing that mixture in contact with the first catalyst which converts at least a portion of the methylene halide, trihalomethane and carbon tetrahalide to carbon monoxide, hydrogen halide and water.

    摘要翻译: 通过放置包含甲烷,卤素源,氧源和任选的稀释气体源的进料流,将第一催化剂(例如固体超强酸或固体超级碱)接触,从而氧化卤化甲烷,所述第一催化剂 对甲基卤和一氧化碳的选择性高于二氯甲烷,三卤甲烷或四卤化碳。 通过使用将至少部分进料流转化为甲基卤化物,二卤甲烷,三卤代甲烷,四卤化碳和未反应的氧的混合物的第二催化剂来提高对甲基卤的总体选择性,并将该混合物与第一种催化剂接触, 二卤甲烷,三卤代甲烷和四卤化碳中的至少一部分与一氧化碳,卤化氢和水反应。

    Oxidative Halogenation of C1 Hydrocarbons to Halogenated C1 Hydrocarbons
    3.
    发明申请
    Oxidative Halogenation of C1 Hydrocarbons to Halogenated C1 Hydrocarbons 审中-公开
    C1碳氢化合物对卤代C1烃的氧化卤化

    公开(公告)号:US20080275279A1

    公开(公告)日:2008-11-06

    申请号:US11912376

    申请日:2006-04-25

    IPC分类号: C07C1/02

    摘要: An oxidative halogenation process involving contacting methane, a C1 halogenated hydrocarbon, or a mixture thereof with a source of halogen and a source of oxygen, at a molar ratio of reactant hydrocarbon to source of halogen in a feed to the reactor greater than 23/1, and/or at a molar ratio of reactant hydrocarbon to source of oxygen in a feed to the reactor greater than about 46/1; in the presence of a rare earth halide or rare earth oxyhalide catalyst, to produce a halogenated C1 product having at least one more halogen as compared with the C1 reactant hydrocarbon, preferably, methyl chloride. The process can be advantageously conducted to total conversion of source of halogen and source of oxygen. The process can be advantageously conducted with essentially no halogen in the feed to the reactor, by employing a separate catalyst halogenation step in a pulse, swing or circulating bed mode. The production of methyl halide can be integrated into downstream processes for manufacture of valuable commodity chemicals.

    摘要翻译: 一种氧化卤化方法,包括使甲烷,C 1卤代烃或其混合物与卤素源和氧源以反应物烃与进料中卤素源的摩尔比接触 大于23/1的反应物,和/或反应物烃与反应器进料中氧的来源的摩尔比大于约46/1; 在稀土卤化物或稀土卤氧化物催化剂的存在下,与C 1反应物烃相比产生具有至少一个以上卤素的卤代C 1 -C 1产物, 优选氯甲烷。 该方法可以有利地进行到卤素源和氧源的总转化。 通过在脉冲,摆动或循环床模式中使用单独的催化剂卤化步骤,该方法可以有利地在反应器的进料中基本上不含卤素进行。 甲基卤化物的生产可以整合到用于制造有价值的商品化学品的下游工艺中。

    OXIDATIVE MONO-HALOGENATION OF METHANE
    5.
    发明申请
    OXIDATIVE MONO-HALOGENATION OF METHANE 有权
    氧化甲烷的单氧化反应

    公开(公告)号:US20110201841A1

    公开(公告)日:2011-08-18

    申请号:US13123908

    申请日:2009-08-19

    IPC分类号: C07C51/14 C07C17/013

    CPC分类号: C07C17/154 C07C19/03

    摘要: Oxidatively halogenate methane by placing a feedstream that comprises methane, a source of halogen, a source of oxygen and, optionally, a source of diluent gas in contact with a first catalyst (e.g. a solid super acid or a solid super base) that has greater selectivity to methyl halide and carbon monoxide than to methylene halide, trihalomethane or carbon tetrahalide. Improve overall selectivity to methyl halide by using a second catalyst that converts at least part of the feedstream to a mixture of methyl halide, methylene halide, trihalomethane, carbon tetrahalide and unreacted oxygen, and placing that mixture in contact with the first catalyst which converts at least a portion of the methylene halide, trihalomethane and carbon tetrahalide to carbon monoxide, hydrogen halide and water.

    摘要翻译: 通过放置包含甲烷,卤素源,氧源和任选的稀释气体源的进料流,将第一催化剂(例如固体超强酸或固体超级碱)接触,从而氧化卤化甲烷,所述第一催化剂 对甲基卤和一氧化碳的选择性高于二氯甲烷,三卤甲烷或四卤化碳。 通过使用将至少部分进料流转化为甲基卤化物,二卤甲烷,三卤代甲烷,四卤化碳和未反应的氧的混合物的第二催化剂来提高对甲基卤的总体选择性,并将该混合物与第一种催化剂接触, 二卤甲烷,三卤代甲烷和四卤化碳中的至少一部分与一氧化碳,卤化氢和水反应。