摘要
针对贵州某卡林型金矿,采用氧化焙烧预处理矿物、碱性环境下氰化浸出工艺提金。所得最佳焙烧条件为:焙烧温度750℃、焙烧时间2 h,此时硫、碳、砷的脱除率分别为99.95%,95.83%和99.91%;焙烧后矿物在氰化物浓度3 g/L条件下浸出24h,金浸出率为93.81%。
After a pre-treatment of oxidizing roasting, the gold ore from a Carlin-type deposit of Guizhou Province was leached to recover gold by sodium cyanide in an alkaline solution. The results show that, with optimum roasting temperature of 750 ℃ and roasting duration of 2 h, the removal rates of sulfide, carbide and arsenide attained 99.95%, 95.83% and 99.91%, respectively. With the cyanide concentration of 3 g/L, the gold leaching rate of the roasted ore, after 24 h-leaching, reached 93.81%.
出处
《矿冶工程》
CAS
CSCD
北大核心
2015年第4期98-100,103,共4页
Mining and Metallurgical Engineering
关键词
卡林型金矿
黄铁矿
氧化焙烧
氰化浸出
Carlin-type gold deposit
pyrite
oxidizing roasting
cyanide leaching
