Study on Selective Bioleaching of Pyrite and Secondary Copper Sulfides
Pyrite and Chalcocite have different crystal lattice, with different dissolution rate in the same acid solution, the dissolution rate of which is accelerated with increasing redox potential, they are leached simultaneously at high redox. In present work, some methods are adopted to inhibition the bioleaching of the pyrite by controlling the redox potential. Shake flask experiment shows that the dissolution of pyrite and chalcocite is slow as redox potential ＜700mV(Eh), but the dissolution increases exponentially as redox potential＞800mV(Eh), they have good selectivity at redox potential between 700mV and 760mV(Eh).
Second copper sulfides Pyrite Redox potential Selective bioleaching
B. Wu J. K. Wen G. Y. Zhou R. M. Ruan
Beijing General Institute for Nonferrous Metals National Engineering, Laboratory of Biohydrometallurgy, Beijing, China
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
2728-2730
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）