摘要
某高砷金矿中金的品位为17g/t-18g/t,砷的质量分数为20.1%-20.5%范围,硫的质量分数为18.46%,铅的质量分数为3.05%。金主要被砷化物及硫化物包裹不易氰化浸出。金矿直接焙烧后,金的氰化浸出率为56.17%,加入助剂焙烧后,金的氰化浸出率为81.48%以内。若在氰化反应体系中加入2?/t增浸剂后,金的氰化浸出率为87%-90%,金的氰化浸出速度得到提高。
The content of gold of certain gold ore containing high content of arsenic is 17g/t - 18g/ t, and the gold ore contains 20.1% -20.5% （mass fraction） arsenic, 18.46% sulfur and 3.05% lead, and gold is hardly cyanide leached mainly since parceled up by arsenide and sulphuret. The gold cyanide leaching rate is 56.17 % by direct roasting, but within 81.48 % with addition of auxiliary agent, then reaches as high as 87% -90% with addition of 2kg/t leaching agent and improves the velocity of cyanidation as well.
出处
《黄金科学技术》
2007年第2期43-46,共4页
Gold Science and Technology
关键词
金矿
焙烧
助剂
增浸剂
gold ore
masting
auxiliary agent
leaching agent
