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首页> 外文期刊>American journal of applied sciences >Sorption Extraction of Noble and Non-Ferrous Metals from Process Leaching Solutions | Science Publications
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Sorption Extraction of Noble and Non-Ferrous Metals from Process Leaching Solutions | Science Publications

机译:从工艺浸出溶液中吸附萃取贵金属和有色金属|科学出版物

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> >In view of the annual increase in ore processing output forlow grade or refractory gold-bearing ores, as well as recoverable rawmaterials, stricter requirements for completeness of gold extraction andenvironmental safety, the interest is rising in possible alternatives tosubstitute the cyanide process used in gold mining practice. One of suchalternatives is to convert metals into solutions of various chemicalcompositions by means of electric current-electrochemical leaching-followed bymetal sorption extraction. This paper deals with the issues of sorptionbehavior of noble (gold, silver) and non-ferrous (copper, iron, cobalt, zinc,nickel, manganese, lead) metals from thiosulfate solutions for chemical andelectrochemical leaching of concentrates of two mineral deposits using variousanionites. Factors affecting metal uptake most significantly were determined.Degree of zinc and nickel sorption extraction from electrochemical leachingsolutions made 99%. It has been established that the nature of metal sorptionextraction from process solutions is connected with the micro structure ofleaching solutions having quasi-homogeneous structure.
机译: > >鉴于低品位或难处理含金矿石以及可回收原料的矿石加工产量逐年增加,对提金完整性和环境安全性的要求越来越严格,替代金矿开采实践中使用的氰化物工艺的可能替代方法。一种这样的替代方法是通过电流-电化学浸提,接着通过金属吸附萃取,将金属转化为各种化学组成的溶液。本文研究了硫代硫酸盐溶液对贵金属(金,银)和有色金属(铜,铁,钴,锌,镍,锰,铅)金属的吸附行为,用于使用各种阴离子物质对两种矿床的精矿进行化学和电化学浸出。确定了最显着影响金属吸收的因素。从电化学浸提液中锌和镍的吸附萃取率达到99%。已经确定,从工艺溶液中进行金属吸附提取的本质与具有准均质结构的浸出溶液的微观结构有关。

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