2 Oxidative Hydrometallurgy of Sulphide Minerals
2 Oxidative Hydrometallurgy of Sulphide Minerals
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2 硫化矿物的氧化湿法冶金
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
A. Dávalos
中科院分区：
文献类型：
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作者：
F. R. Carrillo;M. Soria;E. Salinas;A. Martínez;T. Pecina;A. Dávalos
硫化物矿物是金、银、铜、锌等有价金属的重要来源之一。由于硫与这些矿物的强烈结合，通常通过火法冶金或化学氧化湿法冶金来提取金属。其中，湿法冶金显然对环境的影响较小，在过去几十年中受到越来越多的关注。湿法冶金工艺的主要阶段包括浸提、萃取和沉淀或电解。几十年来，已经开发了许多方法来浸提硫化矿和精矿，并且条件已经很好地建立。然而，由于环境问题以及对开采混合和低品位矿石以及相对较小的孤立矿床的需求日益增加，人们对用于铜生产的湿法冶金工艺重新产生了兴趣。
Sulphide minerals are one of the most important sources of value metals, such as gold, silver, copper, zinc, etc. Due to the strong sulphur binding to these minerals, metals are usually extracted by pyrometallurgical route or hydrometallurgy with chemical oxidation. Of these, hydrometallurgy apparently has a lower environmental impact, which has received increased attention in last decades. The main stages of the hydrometallurgical route comprise leaching, extraction and precipitation or electrowinning. For several decades, a number of processes have been developed to leach sulphide ores and concentrates and the conditions are well established. However, there is a renewed interest in hydrometallurgical processes for copper production due to environmental issues and the increasing need to exploit mixed and low grade ores and relatively small isolated deposits.