Preparation of largely HBr-free HCI gas and largely HBr-free aqueous HCI solution
    1.
    发明授权
    Preparation of largely HBr-free HCI gas and largely HBr-free aqueous HCI solution 有权
    主要制备无HBr的HCl气体和大部分不含HBr的HCl水溶液

    公开(公告)号:US06890508B2

    公开(公告)日:2005-05-10

    申请号:US10309128

    申请日:2002-12-04

    CPC分类号: C01B7/0731

    摘要: The present invention relates to a process for preparing largely HBr-free HCl gas and largely HBr-free aqueous HCl solution, which comprises the following steps: a) providing HBr-containing HCl gas; b) passing the HBr-containing HCl gas through aqueous HCl solution saturated with HCl; c) separating off HBr-containing aqueous HCl solution saturated with HCl; d) if desired, passing the largely HBr-free HCl gas obtained in step b) into water to obtain largely HBr-free aqueous HCl solution; with largely HBr-free aqueous HCl solution produced in step d) being able, if desired, to be recirculated to step b) of the process. The process of the present invention allows high-purity aqueous HCl solution for use in the semiconductor industry to be prepared inexpensively and on an industrial scale. However, the purified HCl gas obtained by means of steps a) to c) can also be used for any other purposes. The invention likewise provides an apparatus for carrying out the process of the present invention.

    摘要翻译: 本发明涉及一种主要制备无HBr的HCl气体和大部分不含HBr的HCl水溶液的方法,其包括以下步骤:a)提供含HBr的HCl气体; b)将含HBr的HCl气体通过用HCl饱和的HCl水溶液; c)分离出用HCl饱和的含HBr的HCl水溶液; d)如果需要,将步骤b)中获得的大部分无HBr的HCl气体通入水中,以获得大部分不含HBr的HCl水溶液; 在步骤d)中产生的基本上不含HBr的HCl水溶液,如果需要,可以再循环到该方法的步骤b)。 本发明的方法允许廉价地和工业规模地制备用于半导体工业的高纯度HCl水溶液。 然而,通过步骤a)至c)获得的纯化的HCl气体也可用于任何其它目的。 本发明同样提供了一种用于实施本发明方法的装置。

    Desublimator for aluminum chloride
    2.
    发明授权
    Desublimator for aluminum chloride 有权
    Desublimator为氯化铝

    公开(公告)号:US07445664B2

    公开(公告)日:2008-11-04

    申请号:US11225418

    申请日:2005-09-13

    IPC分类号: B01D53/00

    CPC分类号: B01D7/00

    摘要: The invention relates to a desublimator for producing particulate, solid aluminum chloride from aluminum chloride vapor, which is formed by a vessel which is closed on all sides and has vertical walls and a feed point for the aluminum chloride vapor and an offtake point for the solid aluminum chloride, wherein the walls of the vessel are formed by flat metal sheets which are welded into a rigid frame so that they can be set into vibration by being struck with a tapper.

    摘要翻译: 本发明涉及一种用于从氯化铝蒸汽中生产颗粒状固体氯化铝的去均衡器,其由在所有侧面上封闭并具有垂直壁的容器和用于氯化铝蒸汽的供料点和固体的出口点形成 氯化铝,其中容器的壁由平坦的金属板形成,其被焊接到刚性框架中,使得它们可以通过用分条器敲击而被设置成振动。

    Method for electrochemically producing an alkali metal from an aqueous solution
    3.
    发明授权
    Method for electrochemically producing an alkali metal from an aqueous solution 失效
    从水溶液中电化学制造碱金属的方法

    公开(公告)号:US06770187B1

    公开(公告)日:2004-08-03

    申请号:US10069369

    申请日:2002-02-25

    IPC分类号: C25C102

    CPC分类号: C25C1/02

    摘要: The invention relates to an electrolysis cell comprising an anode compartment which comprises an aqueous solution of at least one alkali metal salt, a cathode compartment and a solid electrolyte which separates the anode compartment and the cathode compartment from one another, wherein that part of the surface of the solid electrolyte which is in contact with the anode compartment and/or that part of the surface of the solid electrolyte which is in contact with the cathode compartment has/have at least one further ion-conducting layer.

    摘要翻译: 本发明涉及一种电解槽,其包括阳极室,该室包含至少一种碱金属盐的水溶液,阴极室和将阳极室和阴极隔室相互分离的固体电解质,其中该部分表面 与阳极室接触的固体电解质和/或与阴极室接触的固体电解质的表面部分具有至少一个另外的离子传导层。

    Electrolytic method for the production of sodium and aluminum chloride
    9.
    发明授权
    Electrolytic method for the production of sodium and aluminum chloride 失效
    用于生产氯化钠和氯化铝的电解方法

    公开(公告)号:US06235183B1

    公开(公告)日:2001-05-22

    申请号:US09000276

    申请日:1998-01-27

    IPC分类号: C25B124

    CPC分类号: C25C3/02

    摘要: A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte, a fused electrolyte essentially containing sodium tetrachloroaluminate is electrolyzed in the anode compartment, aluminum chloride formed in this process is evaporated from the electrolytic cell and sodium is removed from the cathode compartment.

    摘要翻译: 描述了电化学制备钠和氯化铝的方法,其中在以铝为阳极的电解池和通过钠离子导电固体电解质彼此分离的钠作为阴极的电解槽中,基本上含有四氯铝酸钠的熔融电解质 在阳极室中进行电解,在该方法中形成的氯化铝从电解槽中蒸发,从阴极室除去钠。

    Electrolytic cell
    10.
    发明授权
    Electrolytic cell 失效
    电解池

    公开(公告)号:US06402910B1

    公开(公告)日:2002-06-11

    申请号:US09567210

    申请日:2000-05-09

    IPC分类号: C25C300

    CPC分类号: C25C3/02

    摘要: A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte, a fused electrolyte essentially containing sodium tetrachloroaluminate is electrolyzed in the anode compartment, aluminum chloride formed in this process is evaporated from the electrolytic cell and sodium is removed from the cathode compartment.

    摘要翻译: 描述了一种电化学制备钠和氯化铝的方法,其中在含有作为阳极的铝和作为阴极的钠通过钠离子导电固体电解质彼此分离的电解池中,基本上含有四氯铝酸钠的熔融电解质 在阳极室中进行电解,在该方法中形成的氯化铝从电解槽中蒸发,从阴极室除去钠。