中文摘要：

开展了复杂硫化矿在盐酸体系中锑和铁的臭氧氧化浸出动力学研究。分别考察温度、HCl浓度、搅拌速度和粒度对反应过程的影响。结果表明：粒度<0.074mm的矿物原料在85°C、4.0mol/L盐酸浓度以及900r/min搅拌速度的实验条件下反应50min，可以提取86.1%锑和28.8%铁。XRD分析表明，浸出过程并无固体产物生成，可以认为该反应过程符合收缩核模型。锑的浸出过程在低温(15~45°C)时为扩散控制，在高温(45~85°C)时为混合控制，反应过程活化能分别为6.91和17.93kJ/mol；铁的浸出过程为扩散过程控制，活化能为1.99kJ/mol；最后根据实验结果得出3组动力学方程。

英文摘要：

The leaching kinetics of Sb and Fe from antimony-bearing complex sulfides ore was investigated in HCl solution by oxidation?leaching with ozone.The effects of temperature,HCl concentration,stirring speed and particle size on the process were explored.It is found that the recoveries of Sb and Fe reach86.1%and28.8%,respectively,when the reaction conditions are4.0mol/L HCl,900r/min stirring speed at85°C with<0.074mm particle size after50min leaching.XRD analysis indicates that no new solid product forms in the leaching residue and the leaching process can be described by shrinking core model.The leaching of Sb corresponds to diffusion-controlled model at low temperature(15?45°C)and mixed-controlled model at high temperature(45?85°C),and the apparent activation energies are6.91and17.93kJ/mol,respectively.The leaching of Fe corresponds to diffusion-controlled model,and the apparent activation energy is1.99kJ/mol.Three semi-empirical rate equations are obtained to describe the leaching process.