Process for removing aluminum and other metal chlorides from chlorosilanes
    11.
    发明申请
    Process for removing aluminum and other metal chlorides from chlorosilanes 有权
    从氯硅烷中除去铝和其他金属氯化物的方法

    公开(公告)号:US20090250403A1

    公开(公告)日:2009-10-08

    申请号:US12080918

    申请日:2008-04-07

    CPC classification number: C01B33/10778

    Abstract: A process for removing aluminum and other metal chlorides from liquid chlorosilanes with the steps of: introducing a source of seed into a source of impure liquid chlorosilanes, initiating the crystallization of aluminum and other metal chlorides on the seed from the liquid chlorosilanes in a first agitated vessel, passing the resulting mixture of liquid and solids through a cooler into a second agitated vessel for additional crystallization, transferring the resulting mixture of liquid and solids into a solids removal device, transferring the liquid with reduced solids content to a further process or vessel and transferring the liquid with high solids content into a waste concentration device, passing the resulting liquid with reduced solids content to a further process or vessel and passing the resultant liquid with very high solids content to a waste storage vessel with agitation.

    Abstract translation: 一种从液体氯硅烷中除去铝和其它金属氯化物的方法,其步骤是:将种子源引入不纯液体氯硅烷的来源中,在第一次搅拌下从液体氯硅烷中引发铝和其它金属氯化物在种子上的结晶 将所得到的液体和固体混合物通过冷却器通入第二搅拌容器中以进行另外的结晶,将所得到的液体和固体混合物转移到固体去除装置中,将具有降低的固体含量的液体转移到另外的方法或容器中, 将具有高固体含量的液体转移到废物浓缩装置中,将得到的具有降低的固体含量的液体通入另一种方法或容器,并将所得到的具有非常高固体含量的液体通过搅拌送入废物储存容器。

    Apparatus and process for hydrogenation of a silicon tetrahalide and silicon to the trihalosilane
    12.
    发明授权
    Apparatus and process for hydrogenation of a silicon tetrahalide and silicon to the trihalosilane 有权
    将四卤化硅和硅氢化成三卤代硅烷的装置和方法

    公开(公告)号:US08178051B2

    公开(公告)日:2012-05-15

    申请号:US12291115

    申请日:2008-11-05

    CPC classification number: C01B33/10773 B01J8/1827 B01J8/24 C01B33/1071

    Abstract: A reactor for hydrogenation of a silicon tetrahalide and metallurgical grade silicon to trihalosilane includes a bed of metallurgical silicon particles, one or more gas entry ports, one or more solids entry ports, one or more solids drains and one or more ports for removing the trihalosilane from the reactor. Fresh surfaces are generated on the bed particles by internal grinding and abrasion as a result of entraining feed silicon particles in a silicon tetrahalide/hydrogen feed stream entering the reactor and impinging that stream on the bed of silicon particles. This has the advantages of higher yield of the trihalosilane, higher burnup rate of the MGS, removal of spent MGS as a fine dust carryover in the trihalosilane effluent leaving the reactor and longer times between shutdowns for bed removal.

    Abstract translation: 用于将四卤化硅和冶金级硅氢化成三卤代硅烷的反应器包括冶金硅颗粒床,一个或多个气体入口,一个或多个固体入口,一个或多个固体排水口和用于除去三卤代硅烷的一个或多个端口 从反应堆。 通过内部研磨和磨损在床颗粒上产生新鲜的表面,这是由于在进入反应器的四卤化硅/氢气进料流中引入硅颗粒并将该物流撞击在硅颗粒床上的结果。 这具有三卤代硅烷的高产率,较高的MGS燃耗率,在离开反应器的三卤代硅烷流出物中清除废MGS作为细粉尘携带的优点,以及用于床去除的关闭之间更长的时间。

    Apparatus for restarting a gas-solids contactor
    13.
    发明申请
    Apparatus for restarting a gas-solids contactor 有权
    用于重新启动气固体接触器的装置

    公开(公告)号:US20110222365A1

    公开(公告)日:2011-09-15

    申请号:US12661137

    申请日:2010-03-10

    Abstract: A gas-solids contactor modification is described which provides for starting or restarting the gas flow to the gas-solids contactor when it is filled with solid particles while preventing the solids from entering and blocking one or more gas inlets which have diameters greater than the solid particle diameters. The apparatus modification comprises a gas plenum and one or more chambers within the gas plenum located between the contactor inlet and the gas inlet. The wall of the chamber has multiple passageways therethrough that are smaller in diameter than the majority of the bed particles. Gas feed to the plenum must pass through the passageways in the chamber walls before entering the contactor. In one embodiment the total open area of the passageways is at least as large as the cross-sectional area of the gas inlet and the inlet to the contactor.

    Abstract translation: 描述了一种气体 - 固体接触器修改,其在填充固体颗粒时提供气体 - 固体接触器的气流的启动或重新启动,同时防止固体进入和堵塞一个或多个直径大于固体的气体入口 粒径。 设备改造包括位于接触器入口和气体入口之间的气室内的气室和一个或多个室。 室的壁具有穿过其的多个通道,其直径小于大多数床粒子的直径。 在进入接触器之前,气室进入气室必须通过室壁中的通道。 在一个实施例中,通道的总开口面积至少与气体入口的横截面积和接触器的入口一样大。

    Process for removing aluminum and other metal chlorides from chlorosilanes
    14.
    发明授权
    Process for removing aluminum and other metal chlorides from chlorosilanes 有权
    从氯硅烷中除去铝和其他金属氯化物的方法

    公开(公告)号:US07736614B2

    公开(公告)日:2010-06-15

    申请号:US12080918

    申请日:2008-04-07

    CPC classification number: C01B33/10778

    Abstract: A process for removing aluminum and other metal chlorides from liquid chlorosilanes with the steps of: introducing a source of seed into a source of impure liquid chlorosilanes, initiating the crystallization of aluminum and other metal chlorides on the seed from the liquid chlorosilanes in a first agitated vessel, passing the resulting mixture of liquid and solids through a cooler into a second agitated vessel for additional crystallization, transferring the resulting mixture of liquid and solids into a solids removal device, transferring the liquid with reduced solids content to a further process or vessel and transferring the liquid with high solids content into a waste concentration device, passing the resulting liquid with reduced solids content to a further process or vessel and passing the resultant liquid with very high solids content to a waste storage vessel with agitation.

    Abstract translation: 一种从液体氯硅烷中除去铝和其它金属氯化物的方法,其步骤是:将种子源引入不纯液体氯硅烷的来源中,在第一次搅拌下从液体氯硅烷中引发铝和其它金属氯化物在种子上的结晶 将所得到的液体和固体混合物通过冷却器通入第二搅拌容器中以进行另外的结晶,将所得到的液体和固体混合物转移到固体去除装置中,将具有降低的固体含量的液体转移到另外的方法或容器中, 将具有高固体含量的液体转移到废物浓缩装置中,将得到的具有降低的固体含量的液体通入另一种方法或容器,并将所得到的具有非常高固体含量的液体通过搅拌送入废物储存容器。

    Apparatus for high temperature hydrolysis of water reactive halosilanes and halides and process for making same
    15.
    发明申请
    Apparatus for high temperature hydrolysis of water reactive halosilanes and halides and process for making same 审中-公开
    用于水反应性卤代硅烷和卤化物的高温水解的装置及其制备方法

    公开(公告)号:US20100061912A1

    公开(公告)日:2010-03-11

    申请号:US12283077

    申请日:2008-09-08

    Abstract: A process for high temperature hydrolysis of halosilanes and halides with the steps of: providing a bed of fluidized particulate material heated to at least 300° C., injecting steam and an excess of reactants into the reactor, removing solid waste from a bottom outlet, removing the effluent gases through a solids removal device such as a cyclone, condensing and separating some of the unreacted waste from the effluent gas in a distillation column and sending the effluent gases containing hydrogen and hydrogen chloride to a compressor. In a preferred embodiment the reactants contain at least one water reactive halide, selected from the group halosilane, organohalosilane, aluminum halide, titanium halide, boron halide, manganese halide, copper halide, iron halide, chromium halide, nickel halide, indium halide, gallium halide and phosphorus halide and where the halide content is selected from chlorine, bromine and iodine.

    Abstract translation: 一种用于卤代硅烷和卤化物的高温水解的方法,其步骤为:提供加热到至少300℃的流化颗粒材料床,将蒸汽和过量的反应物注入反应器中,从底部出口除去固体废物, 通过诸如旋风分离器的固体去除装置除去流出气体,在蒸馏塔中冷凝并分离出一些未反应的废物与废气,并将含有氢气和氯化氢的废气送到压缩机。 在优选的实施方案中,反应物含有至少一种选自卤代硅烷,有机卤​​代硅烷,卤化铝,卤化钛,卤化硼,卤化锰,卤化铜,卤化铁,卤化铬,卤化镍,卤化铟,镓 卤化物和卤化磷,卤化物含量选自氯,溴和碘。

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