These include stripping it out of the tailings from gold and copper mines, and also from phosphoric acid produced during the manufacture of fertiliser.

其中包括从金矿和铜矿的矿尾中提取铀，以及利用化肥制造过程中产生的副产物硫酸。

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This article describes the original tailings conveying system in dongxiang Copper. problems currently existed in tailings refilling system as well as improvements upon these issues.

本文简介了东乡铜矿原尾矿输送系统和尾矿充填系统现存的问题及针对这些问题进行改造的情况。

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The paper briefly reviews the production practices of recovering Cu from moly cleaner tailings and farther recovering s from the copper tailings.

简要介绍了从钼精选尾矿中回收铜，选铜尾矿中回收硫的生产实践。

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