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Behavior of copper and lead during mineralurgical and hydrometallurgical processing of flash smelting slag
Archives of Civil and Mechanical Engineering ( IF 4.4 ) Pub Date : 2021-02-13 , DOI: 10.1007/s43452-021-00184-9
Krzysztof Gargul , Bożena Boryczko , Andżelika Bukowska , Adam Hołda , Stanisław Małecki , Barbara Tora

There are only a few smelters processing copper concentrates directly into blister copper. Despite the many advantages of this process, a serious challenge of this technology is the need to process the resulting flash smelting slag. It contains 12–15% copper and 2.5–4% lead. In this form, it cannot be considered as waste material and, therefore, a high-temperature reduction process is carried out. This decopperization process is energy- and time-consuming. The use of mineralurgical and hydrometallurgical processes, selective enrichment of the appropriate slag fractions in copper and lead, followed by its hydrometallurgical processing and recovery of Cu and Pb could be an interesting supplement to the methods used so far. The article presents results of research on the possibility of separation of useful components from copper slag using the original method of sieve analysis, gravitational enrichment and magnetic separation. Preliminary results of tests were made on a laboratory scale. Then, selective leaching of copper and lead from flash smelting slag was carried out, obtaining very promising results.



中文翻译:

闪速熔渣的矿物和湿法冶金过程中铜和铅的行为

只有少数冶炼厂将铜精矿直接加工成粗铜。尽管该方法具有许多优点,但该技术面临的严峻挑战是需要处理所产生的闪速熔渣。它包含12–15%的铜和2.5–4%的铅。以这种形式,不能将其视为废料,因此,进行高温还原处理。该脱铜过程是耗费能量和时间的。使用矿物冶金和湿法冶金工艺,选择性富集铜和铅中适当的炉渣馏分,然后进行湿法冶金工艺以及回收铜和铅,可能是迄今为止所用方法的有趣补充。本文介绍了使用筛分分析,重力富集和磁选的原始方法从铜渣中分离出有用成分的可能性的研究结果。测试的初步结果是在实验室规模上得出的。然后,从闪速熔渣中选择性浸出铜和铅,获得了非常有希望的结果。

更新日期:2021-02-15
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