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首页> 外文会议>International Symposium on Energy and Electrochemical Processes for a Cleaner Environment, 2001, San Francisco, CA >ASPECTS OF ELECTROCHEMICAL REGENERATION OF CHROMIUM CONTAINING SOLUTIONS FROM METAL FINISHING INDUSTRY
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ASPECTS OF ELECTROCHEMICAL REGENERATION OF CHROMIUM CONTAINING SOLUTIONS FROM METAL FINISHING INDUSTRY

机译：金属精加工行业中含铬溶液的电化学再生方面

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摘要

The electrochemical regeneration of chromium containing solutions, like plating or treatment baths and their spare tank waters, includes the removal of side ions and the re-oxidation of three-valent chromium. This paper describes kinetics studies on several anode materials and the determination of technological conditions for optimized regeneration processes in divided electrochemical cells with high current efficiencies and low cell voltages. The studied systems were diluted chromate solutions typical for some chromate conversion coating baths (chromodizing) or spare tank waters, and hard-chromium electrolytes for aluminum and aluminum alloys. Two- and three-compartment cells with several separator materials were used. The oxidation of three-valent chromium was realized on lead-lead dioxide anodes.
机译：含铬溶液的化学再生，例如电镀或处理槽及其备用水，包括去除侧离子和三价铬的再氧化。本文介绍了几种阳极材料的动力学研究，以及确定了在具有高电流效率和低电池电压的分隔式电化学电池中优化再生过程的技术条件的确定。所研究的系统是稀释的铬酸盐溶液，通常用于某些铬酸盐转化涂层浴（铬酸盐化）或备用槽水，以及用于铝和铝合金的硬铬电解质。使用带有几种隔离材料的两室和三室电池。三价铬的氧化是在铅-二氧化铅阳极上实现的。

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