摘要
以贵州某卡林型金矿为研究对象,采用XRD、化学分析等方法,探索了焙烧预处理过程中焙烧温度、焙烧时间对硫转化率与金浸出率之间相互影响规律.结果表明,在700℃温度下,焙烧1.5-2h,可以充分打开金的硫化物包裹,浸出率近90%;硫转化率由83.01%升高至91.02%,金浸出率与硫转化率基本呈线性正相关关系,相关系数r=0.93517.
Influence of roasting temperature and roasting time on the rate of desulfurization and gold leaching from a certain Carlin-type gold deposit located in Guizhou was investigated by using XRD and chemical analysis, and the relationship between the desulfurization and gold leaching was also explored. The results shows the roasting at 700 ℃ for 1.5-2 hours destroyed gold-bearing sulfides sufficiently, making the rate of gold leaching in the followed step reach nearly 90% and the rate of desulfurization rise to 91.02% from 83.01%. The rate of gold leaching exhibited positive correlation to that of desulfurization with a correlation coefficient r of 0.93517.
出处
《贵金属》
CAS
CSCD
北大核心
2016年第4期63-65,70,共4页
Precious Metals
基金
贵州省科学技术基金(黔科合J字[2010]2003)
关键词
有色金属冶金
卡林型金矿
硫转化率
浸金率
焙烧预处理
nonferrous metallurgy
Carlin-type gold deposit
the rate of desulfurization
the rate of gold leaching
roasting pretreatment
