Apparatus for oxidation or reduction process in water solution with
electrochemically active catalyst on a porous carrier
    33.
    发明授权
    Apparatus for oxidation or reduction process in water solution with electrochemically active catalyst on a porous carrier 失效
    用于在多孔载体上的电化学活性催化剂的水溶液中氧化或还原过程的装置

    公开(公告)号:US4432872A

    公开(公告)日:1984-02-21

    申请号:US274622

    申请日:1981-06-17

    CPC classification number: H01M4/86 B01J35/00 C25C7/02

    Abstract: A plate or hollow cylinder of coarsely porous graphite is coated with a layer of finely porous activated carbon that has previously been heat-treated. The fine layer is impregnated with a catalyst either before or after application to the graphite body. A gas is caused to flow through the graphite body and out through the finely porous layer containing the catalyst, to react with substances in a solution in which the carrier body is immersed. For oxidation, air can be used, and for reduction, hydrogen. In this manner, sulfite can be oxidized or chromate reduced and hydrogen gas can also be used to precipitate platinum, rhodium, copper and other metals from solution. Electro-chemical activation or regeneration of the catalyst is possible by applying a potential to the carrier body. The reaction can be carried on in solutions in which solids are suspended without clogging the catalyst.

    Abstract translation: 涂有粗过孔石墨的板或中空圆筒,其上已经进行过热处理的细孔活性炭层。 在施加到石墨体之前或之后,用催化剂浸渍细层。 使气体通过石墨体流过包含催化剂的细孔层,与载体体浸入溶液中的物质反应。 为了氧化,可以使用空气,还可以还原氢气。 以这种方式,亚硫酸盐可以被氧化或铬酸盐还原,也可以使用氢气从溶液中沉淀出铂,铑,铜和其他金属。 催化剂的电化学活化或再生可以通过向载体体施加电位。 反应可以在其中悬浮固体而不堵塞催化剂的溶液中进行。

Patent Agency Ranking