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Solid Electrolytes-New Techniques in Metal Refining

机译:固体电解质-金属精炼的新技术

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摘要

Specifications on the types and levels of impurities tolerable in metals are becoming increasingly stringent, and are pushing the limits achievable with conventional refining technologies. Particularly difficult is the removal of electrochemically noble elements with low volatilities, such as copper, from more active host metals such as lead, iron and aluminum. Electrochemical refining, utilising the ability of certain solid electrolytes to selecitvely transport copper or other impurity cations away from the molten host metal into a seqarate refining phase, any provide an answer to this problem.
机译:金属中可容许的杂质类型和含量的规范变得越来越严格,并且正在推动传统精炼技术可以达到的极限。特别困难的是从活性较高的主体金属(如铅,铁和铝)中去除低挥发性的电化学贵族元素(如铜)。电化学精炼利用某些固体电解质将铜或其他杂质阳离子从熔融的基质金属中选择性地转运出到精炼阶段的能力,可以为这一问题提供答案。

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