Precipitation or depositing of particles from a solution
    2.
    发明公开
    Precipitation or depositing of particles from a solution 失效
    Fällungoder Abscheidung von Teilchen aus einerLösung。

    公开(公告)号:EP0079625A1

    公开(公告)日:1983-05-25

    申请号:EP82201263.9

    申请日:1982-10-12

    IPC分类号: C25B15/02 C25C7/06

    CPC分类号: C25B15/02 C25C7/06

    摘要: The precipitation or depositing of particles from a solution in a cell (61) in which an electric field is applied between an anode (65,67,68) and a cathode (66), typically an electrolysis cell for the co-precipitation of mixed oxides but also cells for electrodeposition or the electrophoretic deposition of colloidal particles, is controlled by measuring the pH of the solution in the cell using a probe (72) shielded in a tube (73) from the migrating electric current and from gas bubbles. The pH of the solution is then adjusted to a selected value as a function of the measured pH, e.g. by varying the electrolysis current or by bubbling in acid vapour, air or base vapour.

    摘要翻译: 通过在阳极(65,67,68)和阴极(66)之间施加电场的电池(61)中的溶液中沉淀或沉积颗粒,通常用于混合的共沉淀的电解池 氧化物,还有用于电沉积或胶体颗粒的电泳沉积的电池,通过使用屏蔽在管(73)中的探针(72)从迁移电流和气泡中测量电池中的溶液的pH来控制。 然后将溶液的pH调节至作为测量的pH的函数的选定值,例如, 通过改变电解电流或通过在酸性蒸汽,空气或碱蒸气中鼓泡。