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首页> 外文会议>Proceedings of the International Solvent Extraction Conference >THE EXTRACTION OF COPPER, ZINC, CADMIUM AND LEAD FROM WASTE STREAMS IN THE ZINC-LEAD INDUSTRY
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THE EXTRACTION OF COPPER, ZINC, CADMIUM AND LEAD FROM WASTE STREAMS IN THE ZINC-LEAD INDUSTRY

机译：锌铅行业废渣中铜，锌，镉和铅的提取

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摘要

Extractants have been assessed for the extraction and recovery of zinc, cadmium, copper and lead from wastewaters generated in the zinc-lead industry with specific reference to Poland. Initial assessment of potential extractants for recovery of these metals either in bulk or individually resulted in the selection of di(2-ethylhexyl)phosphoric acid, the dialkylphosphinic acid CYANEX 272~(~R) and a mixture of a carboxylic acid (di-isopropylsalicylic acid) and tri-iso-butylphosphine sulphide (CYANEX 471X~(~R)) for in-depth assessment in experimental studies. The testwork was carried out using synthetic solutions containing appropriate concentrations of zinc, cadmium, copper and lead. The results from all these studies are presented, collated and assessed and conclusions drawn with regard to viable options for commercial treatment, using solvent extraction, of such waste liquors.
机译：已对萃取剂进行了评估，以从锌铅工业中产生的废水中萃取和回收锌，镉，铜和铅，具体参考波兰。对散装或单独回收这些金属的潜在萃取剂的初步评估导致选择了二（2-乙基己基）磷酸，二烷基次膦酸CYANEX 272〜（R）和羧酸（二异丙基水杨酸）的混合物酸）和三异丁基膦硫化物（CYANEX 471X〜（〜R））进行实验研究的深入评估。使用含有适当浓度的锌，镉，铜和铅的合成溶液进行测试。提出，整理和评估了所有这些研究的结果，并就使用废液进行溶剂萃取进行商业处理的可行方案得出了结论。

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