Desublimator for aluminum chloride
    1.
    发明申请
    Desublimator for aluminum chloride 有权
    Desublimator为氯化铝

    公开(公告)号:US20060070522A1

    公开(公告)日:2006-04-06

    申请号:US11225418

    申请日:2005-09-13

    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。

    Purification of caustic soda
    9.
    发明授权
    Purification of caustic soda 失效
    苛性钠的净化

    公开(公告)号:US6113657A

    公开(公告)日:2000-09-05

    申请号:US41691

    申请日:1998-03-13

    IPC分类号: C01D1/30

    CPC分类号: C01D1/30

    摘要: In a process for preparing crystalline NaOH.3.5H.sub.2 O, NaOH.3.5H.sub.2 O is allowed to crystallize from an aqueous sodium hydroxide solution which contains sodium chloride and is saturated in respect of NaOH.3.5H.sub.2 O and the crystals formed are separated from the solution using a mechanical solid/liquid separation apparatus, wherein the solid/liquid separation is carried out under conditions under which the crystalline NaOH.3.5H.sub.2 O is freed sufficiently of residual solution adhering to the surface for the sodium chloride content of the crystalline NaOH.3.5H.sub.2 O obtained to be less than 100 mg per kg. The crystalline NaOH.3.5H.sub.2 O is subjected to an additional purification step, which may include the at least superficial melting or the at least superficial dissolution of the crystals, in combination with a solid/liquid separation step. The additional purification step. The additional purification step comprises washing the crystalline NaOH.3.5H.sub.2 O separated off.

    摘要翻译: 在制备结晶NaOH.3.5H2O的方法中,使NaOH.3.5H2O从含有氯化钠的氢氧化钠水溶液中结晶,并且在NaOH.3.5H 2 O下饱和,并将形成的晶体与溶液分离,使用 机械固/液分离装置,其中固/液分离在结晶NaOH.3.5H2O充分释放残留溶液附着在表面上的条件下进行,得到的结晶NaOH.3.5H2O的氯化钠含量为 小于100mg / kg。 结晶NaOH.3.5H2O经受另外的纯化步骤,其可以包括与固/液分离步骤组合的晶体的至少表面熔融或至少表面溶解。 额外的净化步骤。 另外的纯化步骤包括洗涤析出的结晶NaOH.3.5H2O。