较低温度下细菌浸出黄铜矿工艺影响因素研究

以黄铜矿为研究对象，在温度较低的浸出条件下（15℃）采用正交试验的方法考察了矿石粒度、矿浆浓度、酸度、接种量以及起始Fe²⁺浓度对氧化亚铁硫杆菌（T.f菌）摇瓶浸出黄铜矿浸出过程的影响。试验结果表明：初始Fe²⁺浓度对细菌浸铜工艺影响最为显著；在15℃下的最佳浸出工艺条件为初始Fe²⁺浓度为6g/L，酸度控制在pH=2.0，接种量保持在15%，矿浆浓度为15%，矿石粒度为-200目。

Research on Factors Influencing Bioleaching of Chalcopyrite at Low Temperature

Experimental research is made on the effect of size, pulp concentration, acidity, inoculation amount and initial Fe2⁺ concentration on chalcopyrite leaching with T.f in shaking flask at a low temperature of 15℃ by orthogonal method. The test result indicates that the initial Fe²⁺ concentration has the most evident effect on the bioleaching process of copper and the optimal conditions at a temperature of 15℃ are: initial Fe²⁺ concentration of 6g/L, pH value of 2.0, inoculation amount of 15%, pulp concentration of 15% and particle size of 200 mesh.