Extraction of Copper(Ⅱ) from Chloride Systems with Individual and Mixed Extractants

机译：单独和混合萃取剂从氯化物体系中萃取铜（Ⅱ）

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Extraction of copper(Ⅱ) and zinc(Ⅱ) from acidic chloride solutions with individual extractants, binary mixtures of two extractants and bi-functional extractants is discussed. Neutral pyridine type extractants with electron withdrawing substituents can be used for copper recovery from concentrated chloride solutions. Stripping can be accomplished with water. Binary mixtures containing a basic or solvating extractant and a chelating extractant permit the recovery of copper(Ⅱ) and zinc(Ⅱ) from acidic chloride solutions with the change from a chloride to a sulphate system. The method is also suitable for separating copper(Ⅱ) from zinc(Ⅱ) at the extraction, scrubbing or stripping stage. The use of ALAMINE 336 and LIX 54 is proposed when iron(Ⅲ) is absent or ACORGA CLX 50 and LIX 54 when Fe(Ⅲ) is present in the aqueous feed. KELEX 100 and LIX 26 can be considered as bi-functional extractants and can be used to recover both copper(Ⅱ) and zinc(Ⅱ) from acidic chloride solutions in the absence of iron(Ⅲ) and to separate these metal ions at the extraction, scrubbing or stripping stage.

机译：讨论了用单独的萃取剂，两种萃取剂和双功能萃取剂的二元混合物从酸性氯化物溶液中萃取铜（Ⅱ）和锌（Ⅱ）的方法。具有吸电子取代基的中性吡啶类萃取剂可用于从浓氯化物溶液中回收铜。剥离可以用水完成。包含碱性或溶剂化萃取剂和螯合萃取剂的二元混合物可从酸性氯化物溶液中回收铜（Ⅱ）和锌（Ⅱ），并且由氯化物变为硫酸盐系统。该方法还适用于在萃取，洗涤或汽提阶段从锌（Ⅱ）中分离铜（Ⅱ）。当水性饲料中不存在铁（Ⅲ）时，建议使用ALAMINE 336和LIX 54；而当水溶液中存在Fe（Ⅲ）时，建议使用ACORGA CLX 50和LIX 54。 KELEX 100和LIX 26可被视为双功能萃取剂，可用于在不存在铁（Ⅲ）的情况下从酸性氯化物溶液中回收铜（Ⅱ）和锌（Ⅱ），并在萃取时分离这些金属离子，洗涤或剥离阶段。

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《32nd Annual Hydrometallurgy Meeting and International Conference on the Practice and Theory of Chloride/Metal Interaction, Vol.2, Oct 19-23, 2002, Montreal, Quebec, Canada》|2002年|p.495-511|共17页
会议地点 Montreal(CA);Montreal(CA);Montreal(CA)
作者
J. Szymanowski; G. Kyuchoukov;
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Institute of Chemical Technology and Engineering, Poznan University of Technology, 60-965 Poznan, Poland;

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正文语种 eng
中图分类冶金工业;
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Extraction of Copper(Ⅱ) from Chloride Systems with Individual and Mixed Extractants

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