摘要
硫化锌精矿高温氧化焙烧过程所产的烟尘成分复杂,主要有氧化锌外,还含有铁酸锌及锌、镉的硫化物和硫酸铅等.该种焙烧烟尘的二次焙烧处理工艺存在着环境污染等一系列无法彻底解决的问题.本文首次进行了焙烧烟尘的浮选试验研究,分别考察了捕收剂种类及用量、浮选pH值、浮选时间及起泡剂用量等因素对浮选的影响.试验结果表明,烟尘水洗后经多段浮选,获得了较好的浮选效果,浮选尾矿含硫<1.5%,达到了硫化锌与其它含锌矿物分离的目的.
The roasting dust which produced from zinc concentrate roasting process, main contains zinc oxide, zinc ferrite, zinc sulfide, cadmium sulfide, lead sulfate etc. Secondary masting process which dealt with roasting dust has lots of problems such as environment pollution. In this paper, the flotation experiment study is adopted to dealing with the roasting dust for the first time. By investigating the effects of type and dosage of collector and frother, pH, flotation time. The results show that a good effect is obtained by adopting the flowsheet of multi-stage flotation roasting dust after washing, the sulfur content of tailing is less than 1.5 %, the goal of separation zinc sulphide from other zinc ores is achieved.
出处
《矿冶》
CAS
2008年第1期17-20,44,共5页
Mining And Metallurgy
关键词
锌精矿
焙烧烟尘
浮选
硫化锌
zinc concentrate
roasting dust
flotation
zinc sulphide
