控制氧化还原电位条件下Fe~(3+)浸出闪锌矿动力学及数学建模研究(英文)

• 作 者: 宋健 高玲 林建群 吴洪斌 林建强
• 机 构: State Key Lab of Microbial Technology, Shandong University,Department of Pharmacy and Biotechnology,
• 出 处: Chinese Journal of Chemical Engineering
• 发表日期: 2013年08期
• 关键词: Fe 浸出 leaching 氧化还原电位 ferric redox ferrous concentrate shrinking dissolution

This work presents a study for 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 analyze the experimental results. It was found that both the Fe3+ concentration and the redox potential controlled the chemical leaching rate of sphalerite. A new kinetic model was developed, in which the chemical leaching rate of sphalerite was proportional to Fe3+ concentration and Fe3+ /Fe2+ ratio. All the model parameters were evaluated from the experimental data. The model predictions fit well with the experimental observed values.

This work presents a study for 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 analyze the experimental results. It was found that both the Fe3 + concentration and the redox potential controlled the chemical leaching rate of sphalerite. A new kinetic model was developed, in which the chemical leaching rate of sphalerite was proportional to Fe3 + concentration and Fe3 + / Fe2 + ratio. All the model parameters were evaluated from the experimental data. The model predictions fit well with the experimental observed values.