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湿法冶金日益成为金属提取工业的一个重要组成部分,它是从低品位矿石和采矿废料中经济地回收金、银、铀和铜的唯一技术,用浸出液向下渗滤的方法,对低品位矿石进行堆浸就是这种技术的实例。同样,用就地溶解采矿法提取铀和铜已进入了实用阶段,稀相分离和回收是湿法冶金工艺的独特本领。在多数情况下,浸出低品位矿石产生更稀的水溶液,因此浸出操作的成功取决于浓缩这些极稀溶液的溶剂萃取法、离子交换法或接触还原法(置换沉淀)的技术发展。
Metallurgical hydrometallurgy is increasingly becoming an important part of the metal extraction industry. It is the only technology that economically reclaims gold, silver, uranium and copper from low-grade ores and mining wastes, leachate leaching downward, Ore heap leaching is an example of this technique. Similarly, the extraction of uranium and copper by in situ dissolution mining has entered a practical phase, and the separation and recovery of dilute phases is a unique capability of hydrometallurgical processes. In most cases leaching low grade ore produces a more dilute aqueous solution, so the success of the leaching operation depends on the technical development of solvent extraction, ion exchange or contact reduction (displacement precipitation) to concentrate these very dilute solutions.