摘要
针对铜矿峪低品位矿石进行了室内摇瓶和柱浸试验。试验表明 ,采用细菌浸出可将铜浸出率提高 10 %以上。为了克服地下浸出过程中存在的温度和氧气不足的问题 ,生产中采用细菌先将Fe2 + 氧化为Fe3+ ,然后将含有Fe3+ 的溶液注入地下矿体进行硫化矿氧化浸出的方案。本文还对工程投资、技术经济指标、对环境影响等方面进行了论述。采用地下生物浸出技术不仅能提高矿山资源利用率 ,而且投资少。
The tests for shaking- and column-leaching of low-grade ore from Tongkuangyu Copper Mine are carried out in laboratory The testing results show that the leaching rate of copper can be increased by over 10% with bacterial leaching In order to solve the problems of low temperature and inadequate oxygen in underground leaching,the process of bacterial oxidation ferrous followed by ferric oxidation-leaching sulfide ore is used in production In addition,project investment,techno-economical indexes and environmental influence are discussed The bacterial leaching can improve the utilization of mineral resources,with less investment and short capital return term
出处
《矿冶》
CAS
2004年第1期26-29,共4页
Mining And Metallurgy
