Kinetics and modeling of chemical leaching of sphalerite concentrate with ferric iron in redox-controlled reactor
This work presents a study of the chemical leaching of sphalerite concentrate under various constant Fe3 + concentrations and redox potential conditions. The effects of Fe3+ concentration and redox potential on chemical leaching of sphalerite were investigated. The shrinking core model was applied to analyse the results of experiments. It was found that both the Fe + concentration and the redox potential controlled the chemical leaching rate of sphalerite. Therefore, a new kinetic model was developed in which the chemical leaching rate of sphalerite was proportional to Fe3 + concentration and Fe3 + /Fe + ratio. All of the model parameters were then calculated based on the experimental data. Furthermore, model verification was performed by using published literature data and the model simulation results fit well with the experimental observed values.
sphalerite bioleaching kinetic model Fe3 + concentration redox potential
Jian Song Jianqun Lin Jianqiang Lin
State key Lab of Microbial Technology, Shandong University, 250100, Jinan, China Department of Pharm State key Lab of Microbial Technology, Shandong University, 250100, Jinan, China
国际会议
The 19th International Biohydrometallurgy Symposium(第19届国际生物湿法冶金大会 IBS2011)
长沙
英文
789-792
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）