摘要
镇沅某砷锑碳质金矿中砷的质量分数为0．75％，锑的质量分数为1．53％，碳的质量分数为4．08％，金主要被硫化物包裹不易氰化浸出。金精矿直接焙烧后，金的氰化浸出率为77．67％，加入助剂焙烧后，金的氰化浸出率为82．31％以内。若在氰化反应体系中加入2kg／t增浸剂后，金的氰化浸出率为87．63％～93．22％，金的氰化浸出速度得到提高。
The gold ore of Zhenyuan contains 0.75% （mass fraction） arsenic, 1.53% antimony and 4.08% carbon. , and gold is hardly cyanide leached mainly since parceled up by sulphuret. The gold cyanide leaching rate is 77.67% by roasting, but within 82.31% with addition of auxiliary agent, then reaches as high as 87.63% -93.22% with addition of 2kg/T enhanced leaching agent.
出处
《黄金科学技术》
2006年第4期28-31,共4页
Gold Science and Technology
关键词
金精矿
焙烧
助剂
gold concentrate
roasting
auxiliary agent
