Data for: The Effect of Rich-Oxygen Microwave Leaching of Extracting Vanadium from Converter Vanadium Slag

In this paper, the comparison of microwave heating leaching (MHL) and electric heating leaching (EHL) and the mechanism of rich-oxygen microwave leaching of extracting vanadium from converter vanadium slag were investigated. The comparative studies of leaching showed that the vanadium leaching ratio reached 45.76% in 20 min using EHL, but it can reached 95.78% under the same condition of MHL. The MHL mechanism analysis by XRD and SEM showed that the decomposition of the spinel in the converter vanadium slag can be accelerated by the MHL. In addition, the MHL can reduce the granularity and also make the surface of particles become more porous. In general, the leaching of converter vanadium slag by MHL is much more effective than that of EHL in the pressure leaching process. The kinetic studies of MHL and EHL showed that the activation energy of vanadium MHL and EHL were determined to be 15.57 and 48.53 kJ/mol, respectively. The MHL process followed the diffusion control and the EHL process was controlled by chemical reaction. The results showed that the MHL can shorten the process time, improve the productivity, reduce the cost and improve the product quality. Therefore, MHL of converter vanadium slag is an green production technology ensuring economy and feasibility.

本文深入探讨了微波加热浸出（MHL）与电加热浸出（EHL）的对比研究，以及从转换钒渣中提取钒的富氧微波浸出机理。浸出对比研究显示，在20分钟内，采用EHL的钒浸出率可达45.76%，而在相同条件下，MHL的钒浸出率可高达95.78%。通过XRD和SEM对MHL机理的分析表明，MHL可以加速转换钒渣中尖晶石的分解。此外，MHL还能降低颗粒度，并使颗粒表面变得更加多孔。总体而言，在压力浸出过程中，MHL对转换钒渣的浸出效果远优于EHL。对MHL和EHL的动力学研究显示，钒的MHL和EHL的活化能分别被确定为15.57和48.53 kJ/mol。MHL过程遵循扩散控制，而EHL过程受化学反应控制。研究结果表明，MHL可以缩短工艺时间，提高生产效率，降低成本，并提升产品质量。因此，MHL技术是一种保障经济性和可行性的绿色生产技术。