Preparation of organohalosilanes
    11.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06727376B2

    公开(公告)日:2004-04-27

    申请号:US10230093

    申请日:2002-08-29

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: In an industrial process for preparing organohalosilanes by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst, a contact mass composed of the metallic silicon and the catalyst further contains an effective amount of a phosphonium compound having on the molecule at least one group of the formula: [R2R3R4P—]+Y− wherein R2, R3 and R4 each are a monovalent hydrocarbon group and Y is a halogen atom or acid group. The invention drastically increases the silane formation rate and the utilization of silicon without lowering the selectivity of useful silane.

    摘要翻译: 在铜催化剂存在下,通过使金属硅颗粒与有机卤化物反应制备有机卤代硅烷的工业过程中,由金属硅和催化剂组成的接触物质还含有有效量的在分子上具有至少一个 其中R 2,R 3和R 4各自为一价烃基,并且其中R 2,R 3,R 4, Y是卤素原子或酸基。 本发明大大提高了硅烷的形成速率和硅的利用率,而不降低有用硅烷的选择性。

    Preparation of organohalosilanes
    13.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06242629B1

    公开(公告)日:2001-06-05

    申请号:US09657282

    申请日:2000-09-07

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: When oganohalosilanes are prepared by charging a reactor with a contact mass containing a metallic silicon powder and a copper catalyst, and introducing an organohalide-containing gas into the reactor to effect the direct reaction, a poly(organo)phosphino compound is added to the contact mass. The invention is successful in producing organohalosilanes at a significantly improved production rate without reducing the selectivity of useful silane.

    摘要翻译: 当通过向包含金属硅粉末和铜催化剂的接触物质填充反应器并且将含有机卤化物的气体引入反应器以进行直接反应来制备原料卤代硅烷时,向接触物中加入聚(有机)膦基化合物 质量 本发明成功地以显着提高的生产速率生产有机卤代硅烷,而不降低有用硅烷的选择性。

    Preparation of organohalosilanes
    16.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06215012B1

    公开(公告)日:2001-04-10

    申请号:US09657458

    申请日:2000-09-07

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: When oganohalosilanes are prepared by charging a reactor with a contact mass containing a metallic silicon powder and a copper catalyst, and introducing an organohalide-containing gas into the reactor to effect the direct reaction, a metal complex of an organophosphino compound is added to the contact mass. The invention is successful in producing organohalosilanes at a significantly improved production rate without reducing the selectivity of useful silane.

    摘要翻译: 当通过向包含金属硅粉末和铜催化剂的接触物质填充反应器并且将含有机卤化物的气体引入反应器以进行直接反应来制备原料卤代硅烷时,将有机膦基化合物的金属络合物加入到接触 质量 本发明成功地以显着提高的生产速率生产有机卤代硅烷,而不降低有用硅烷的选择性。

    Process for preparing organohalosilanes
    18.
    发明授权
    Process for preparing organohalosilanes 有权
    制备有机卤代硅烷的方法

    公开(公告)号:US06218562B1

    公开(公告)日:2001-04-17

    申请号:US09548053

    申请日:2000-04-12

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: Organohalosilanes are prepared by the Rochow process of reacting metallic silicon particles with an organohalide in the presence of a copper catalyst. The metallic silicon particles, which are prepared by comminuting fragments of metallic silicon raw material, have a mean particle size of 10 &mgr;m to 10 mm and a surface oxygen quantity of up to 0.3 wt % which is given as the difference between the oxygen concentrations determined by in-metal oxygen analysis of the metallic silicon particles and the fragments, respectively.

    摘要翻译: 有机卤代硅烷通过在铜催化剂存在下使金属硅颗粒与有机卤化物反应的Rochow方法制备。 通过粉碎金属硅原料碎片制备的金属硅颗粒的平均粒径为10〜10μm,表面氧量为0.3重量%,其作为测定的氧浓度之差 分别通过金属硅颗粒和碎片的金属间氧分析。

    Preparation of organohalosilanes
    20.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06395917B1

    公开(公告)日:2002-05-28

    申请号:US09981822

    申请日:2001-10-19

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: When oganohalosilanes are prepared by charging a reactor with a contact mass containing a metallic silicon powder, a copper catalyst and a co-catalyst, and introducing an organohalide-containing gas into the reactor to effect the direct reaction, the catalyst and/or co-catalyst used in the contact mass is obtained by mixing particles of the catalyst and/or co-catalyst with finely divided silica, and applying shear forces to the mixture for mutually rubbing the particles, thereby producing the catalyst and/or co-catalyst having finely divided silica fused to surfaces thereof. The invention is successful in producing organohalosilanes at a significantly improved formation rate without reducing the proportion of diorganodihalosilane.

    摘要翻译: 当通过向包含金属硅粉末,铜催化剂和助催化剂的接触物质装入反应器并且将含有机卤化物的气体引入反应器以进行直接反应来制备原料卤代硅烷时,催化剂和/ 通过将催化剂和/或助催化剂的颗粒与细碎的二氧化硅混合,并向混合物施加剪切力以相互摩擦颗粒而获得催化剂,从而制备具有细小的催化剂和/或助催化剂的催化剂和/或助催化剂 分开的二氧化硅与其表面融合。 本发明成功地以显着提高的形成速率生产有机卤代硅烷,而不降低二有机二卤代硅烷的比例。