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。

    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。

    Electrolysis Device For The Production Of Alkali Metal
    8.
    发明申请
    Electrolysis Device For The Production Of Alkali Metal 失效
    用于生产碱金属的电解装置

    公开(公告)号:US20080053837A1

    公开(公告)日:2008-03-06

    申请号:US11575187

    申请日:2005-09-13

    IPC分类号: C25C1/22 C25D17/00

    CPC分类号: C25C7/005 C25C3/02 C25C7/007

    摘要: An electrolysis device producing alkali metals from a liquid alkali metal heavy metal alloy, including at least two connected tubes forming an electrolysis unit. Two solid electrolyte tubes are arranged concentrically in each tube and oriented with openings towards one end of each tube such that a first annular gap for guiding a liquid alkali metal forming an anode is located between the inside of the tube and the outside of the solid electrolyte tubes. An alloy inlet and outlet for the liquid alkali metal in each of the tubes leads into the first annular gap of a tube. An inner chamber sealed off from the alloy inlet, first annular gap, and alloy outlet in each solid electrolyte tube receives liquid alkali metal that can be used as a cathode connected to the alkali metal outlet. Two respective closure devices are arranged at the two ends of each tube.

    摘要翻译: 一种从液态碱金属重金属合金制造碱金属的电解装置,包括形成电解单元的至少两个连接管。 两个固体电解质管同心地布置在每个管中并且朝向每个管的一端定向开口,使得用于引导形成阳极的液态碱金属的第一环形间隙位于管的内部和固体电解质的外部之间 管。 每个管中的液态碱金属的合金入口和出口通向管的第一环形间隙。 在每个固体电解质管中的合金入口,第一环形间隙和合金出口密封的内室容纳可用作连接到碱金属出口的阴极的液态碱金属。 两个相应的闭合装置布置在每个管的两端。