铜锌尾矿综合利用试验研究  

Study on Comprehensive Utilization of Cu-Zn Tailings

作　　者：李黎婷 熊明 

机构地区：[1]厦门紫金矿冶技术有限公司,福建厦门361101

出　　处：《矿产综合利用》2014年第2期67-70,共4页Multipurpose Utilization of Mineral Resources

摘　　要：针对铜锌尾矿的性质特点,采用浮选富集-氧化焙烧制酸-酸浸除杂-还原焙烧的综合工艺,通过非硫酸方法浮选出优质的硫铁精矿,硫铁精矿氧化焙烧制酸,焙砂酸浸除杂,酸浸渣造粒后还原焙烧,获得合格的金属化球团。采用非硫酸浮选方法,打破传统的弱酸性浮选。充分利用尾矿中的硫铁元素,硫铁的利用率超过90%,变废为宝,极大地降低浮选尾矿的排放量。试验推荐的工艺流程简单,技术指标高,各阶段获得的中间产品如硫铁精矿等可以作为合格产品进行销售,企业也可以有选择地生产硫酸或还原铁,具有较好的推广前景。In light of properties of Cu-Zn tailings, the comprehensive technology of flotation concentration-oxidizing roasting for acid-making-impurity removal by acid leaching-reduction roasting was adopted. High-quality sulfur-iron was produced by non-sulfuric acid method, then acid-making was carried on by oxidizing roasting, impurities were removed by acid leaching and the acid leaching residue after granulation was reduced and roasted. As a result, the qualified pellets were produced, which makes place of the conventional sulfuric acid flotation. The elements of sulfur and iron in the tailings were made use of more than 90%, which turn waste into treasure and greatly reduce the emissions of flotation tailings. The developed technical process is relatively simple, the index of technology is relatively sold. The high and the intermediate products such as sulfur-iron concentrate produced in different stages could be enterprises can also selectively produce sulfuric acid or reduction of iron, which has good prospect

关 键 词：尾矿 硫铁矿 制酸渣 还原焙烧 金属化球团 

分 类 号：TD989[矿业工程—选矿]