Method for reducing sludge formation in the continuous production of
iron by electrolysis of ferrous electrolyte
    11.
    发明授权
    Method for reducing sludge formation in the continuous production of iron by electrolysis of ferrous electrolyte 失效
    通过电解铁电解液连续生产铁中减少污泥形成的方法

    公开(公告)号:US4083759A

    公开(公告)日:1978-04-11

    申请号:US705980

    申请日:1976-07-16

    CPC classification number: C25C1/06 C25C7/06

    Abstract: Sludge formation is reduced in the continuous production of iron by electrolysis of a ferrous electrolyte in a electrodeposition cell by cooling spent electrolyte returning to a holding or regeneration tank, and heating reconstituted electrolyte returning to the electrode-position cell. By reducing the temperature of the spent electrolyte the rate of hydrolysis of ferric ions to form oxides of iron, called sludge, is reduced, thus increasing the interval between periodic cleaning of the electrolyte regeneration system and the electrodeposition cell. In preferred forms of the invention heat energy is transferred from the spent electrolyte to the reconstituted electrolyte by means of at least one counter flow heat exchanger in the form of a hollow cylinder containing a plurality of tubes made of titanium. There may be a controllable cooling device disposed between the holding tank and the or the last heat exchanger for maintaining the temperature of electrolyte in the holding tank at a selected value.

    Abstract translation: 通过将返回到保持或再生槽的废电解质冷却,再加热重新生成的电解液返回到电极位置电池,在电沉积电池中通过电解含铁电解质来减少铁的连续生产。 通过降低废电解质的温度,铁离子水解形成铁的氧化物(称为污泥)的速率降低,从而增加了电解液再生系统和电沉积池周期性清洁之间的间隔。 在本发明的优选形式中,热能通过至少一个中空圆柱体形式的逆流式热交换器从废电解质转移到重新构成的电解质,该中空圆柱体包含多个由钛制成的管。 设置在容纳槽和最后一个热交换器之间的可控制的冷却装置可将电解液的温度保持在选定的值。

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