摘要
采用氧化焙烧脱硫、除碳-碳酸钠溶液浸出钼-浸钼渣氰化提金新工艺处理某金钼混合精矿。结果表明，在下述最佳试验条件下：粗精矿于600℃氧化焙烧1．5h、钼焙砂加入矿重40％的碳酸钠后按液固比3～4在80～90℃浸出1．0～1．5h，钼浸出率为91％，浸钼渣金的氰化浸出率大于95％。
Low grade gold-molybdenum mixed concentrate was treated by new processes of desulfurization and decarbonization by oxidizing roasting, molybdenum leaching with sodium carbonate, and gold cyaniding from molybdenum leaching residue. The results show that molybdenum leaching rate is 91% when rough concentrate is oxidization roasted at 600 ℃ for 1.5 h, molybdenum calcining is leached at 80-90 ℃ for 1.0-1.5 h by sodium carbonate of 40% of weight of calcining with ratio of liquid to solid of 3-4. Gold cyaniding leaching rate from molybdenum leaching residue is 95 % above.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2014年第7期42-44,63,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国土资源地质调查项目(1212011120305)
关键词
金钼混合精矿
氧化焙烧
碳酸钠
浸出
分离
gold-molybdenum mixed concentrates
oxidizing roasting
sodium carbonate
leaching
separation
