4Qin Wenqing, Li Weizhong, 1.an Zhuoyue, et al. SimulatedSmall-scale Pilot Plant Heap Leaching of Low-grade Oxide Zinc Ore With Integrated Selective Extraction of ZincEJ]. Minerals Engineering,2007,20(7) ~694-700.
5Mousavi S M, Jafari A, Yaghmaei S, et al. Bioleaching of Low-grade Saphalerite Using A Column Reactor I J]. Hy- drometallurgy, 2006,82 (1/2) :75-82.