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总结论述了我国氧化锌矿直接浸出提锌技术的研究进展。高硅型氧化锌矿酸浸-萃取-电积工艺取得了突破,并已在工业上得到了运用,形成7.5万t/a的电锌产能;氨浸-活性氧化锌工艺已在企业中运行;碱浸、氨-铵盐浸出体系尚停留在试验室阶段,但已取得了一些成果。提出了开展氧化锌矿就地浸出、堆浸等试验研究,促进氧化锌矿资源开发利用的发展方向。
This paper summarizes the research progress of direct leaching of zinc oxide from zinc oxide in our country. A breakthrough has been made in the acid leaching-extraction-electrowinning process for high-silicon type zinc oxide and has been used industrially to form an electrowinning capacity of 75,000 t / a; the ammonia leaching-activated zinc oxide process has been run in the enterprise ; Alkali leaching, ammonia - ammonium leaching system is still in the laboratory stage, but some results have been achieved. Proposed to carry out in situ leaching of zinc oxide ore, heap leaching and other experimental studies to promote the development and utilization of zinc oxide resources development direction.