中文摘要：

以石煤熔融水淬后碱浸脱硅渣为原料，采用液固多相反应的缩芯模型研究了石煤脱硅渣中钒的浸出动力学，考察了浸出温度、初始硫酸浓度对钒浸出率的影响。结果表明，脱硅渣的浸出分为两个阶段：反应刚开始时的快速浸出阶段和2min之后的缓慢浸出阶段，这两个阶段均受固膜扩散控制，反应活化能为13．88kJ／mol。

英文摘要：

The leaching kinetic of vanadium was studied with the shrinking phase reaction with the use of desiliconization slag of stone coal leached b quenching as raw material. The effects of leaching temperature and initial core model of liquid-solid y alkali after melting and water concentration of vitriolic acid on vanadium leaching rate were investigated. The results show that there are two stages in the leac process, i.e. the quick leaching stage at the beginning of reaction and the slow leaching stage after 2 minutes. The kinetics of leaching in both the stages is controlled by diffusion through solid product layer, and the reaction activation energy is 13.88 kJ/mol.