矿产综合利用Issue(2)：45-47,3.DOI:10.3969/j.issn.1000-6532.2013.02.012
锌浸出渣浮选银的预处理研究
Flotation of Silver by Pretreatment from Zinc Leaching Residue
摘要
Abstract
The zinc ferrite formed by zinc oxide and iron oxide is generated from the roasting process of zinc concentrate at the temperature of more than 650℃ which is a kind of ferrite insoluble in dilute sulfuric acid,but remaining in the leaching residue. The better control of high temperature and high acid leaching conditions, the more the zinc ferrite was dissolved, the more thoroughly the zinc sulfide was destroyed, the lower the slag containing zinc is and the higher the metal recovery rate is, benefiting the flotation for silver. Directed at the zinc slag hydrometallurgy, using the method of high temperature and high acid leaching and flotation to recovery zinc and silver,the solution obtained from the high temperature and high acid leaching solution by means of dividing iron was returned to zinc system to recover zinc. By adopting the process of one roughing two cleaning three scavenging, the silver concentrate with the grade of 2017.45g/t and the recovery of 78.44% was obtained.关键词
高温高酸/浮选/品位/浸出渣/预处理Key words
High temperature and high acid/ Flotation/ Grade/ Leach residue/ Pretreatment分类
矿业与冶金引用本文复制引用
张少博,沈强华,朱云,陈雯..锌浸出渣浮选银的预处理研究[J].矿产综合利用,2013,(2):45-47,3.
