氧化亚铁硫杆菌浸取黄铜矿石影响因素的试验研究  

Experimental Study on Effect of Several Complicated Factors in the Thiobacillus Ferrooxidans Leaching of Chalcopyrite

作　　者：李靓洁[1,2] 董发勤[2] 谌书[1,2] 张伟[2] 

机构地区：[1]西南科技大学环境与资源学院,四川绵阳621010 [2]西南科技大学固体废物处理与资源化教育部重点实验室,四川绵阳621010

出　　处：《矿物学报》2012年第3期449-454,共6页Acta Mineralogica Sinica

基　　金：国家科技支撑计划项目(2007BAB18B06)

摘　　要：本文通过对氧化亚铁硫杆菌浸出青海某地区低品位黄铜矿石的试验,探讨了接种量、矿石粒度、矿浆含量对黄铜矿石摇瓶浸出过程的影响。结果表明:在无菌硫酸浸出过程中,黄铜矿可以自发氧化分解,最终浸出率为15.98%;在有菌浸出过程中,氧化亚铁硫杆菌接种量为5/100(mL/mL)时铜浸出率最高可达31.16%。氧化亚铁硫杆菌浸出黄铜矿在接种量为5/100(mL/mL),矿石粒径为<104μm,矿浆含量为5/100(mL/mL)时较为适宜。In this paper,for the evaluation of the Thiobacillus ferrooxidans bioleaching to the low-grade copper ores from Qinghai province,the effect of inoculation amount on leaching,particle size,and slurry content（m/V） was investigated.It is indicated that the leaching rate of chalcopyrite for copper in sulfuric acid medium was only 15.98%,but for bioleaching it was as high as 31.16% with inoculation amount 5%.The optimal conditions for chalcopyrite bioleaching with Thiobacillus ferrooxidans were pH 2.0,inoculation amount 5%,particle size 104 μm and slurry content（m/V） 5%.

关 键 词：低品位黄铜矿 细菌浸出 接种量 矿石粒度 矿浆含量 

分 类 号：P579[天文地球—矿物学] TF18[天文地球—地质学]