摘要
湿法炼锌厂产出的铁渣量大,不仅含有H2SO4,而且还有Cu、Cd、Pb、Zn、In、As、Sb、F、Cl等有害杂质,长期堆存会造成环境污染和资源浪费,必须加强研发渣的无害化处理和回收方法。本文综合论述了国内外各种除铁方法和最新进展,可为湿法炼锌厂的除铁工艺选择提供参考。针铁矿法、赤铁矿法、渣中铁的深加工方法最有可能实现渣的无害化处理,值得重点开发和应用。
The residue in a zinc hydrometallurgy plant is very large in volume, and contains harmful substances such as H2SO4, Cu, Cd, Pb, Zn, In, As, Sb, F, Cl et al. Long-term storage will cause environmental pollution and means waste of resources. So the harmless treatment and recycling method of the residue should be studied with greater effort. This paper summarizes various methods of removing iron and the latest developments at home and a- broad, which provides reference to the new plants of zinc hydrometallurgy in the respect of iron removal technology selection. The goethite method, hematite method, deep processing of iron in the residue should be developed and applied, which are most likely to reach the goal of harmless treatment.
出处
《矿冶》
CAS
2013年第3期71-74,共4页
Mining And Metallurgy
基金
云南省教育厅科学研究基金项目(2013Y068)
关键词
湿法炼锌
除铁
针铁矿
zinc hydrometallurgy
iron removal
goethite
