文档介绍：doi:.1007-
含钒石煤微波焙烧提钒试验研究
刘涛1,2,3,胡鹏程1,张一敏1,2,3,袁益忠1,2
(,武汉 430081;,武汉 430081;,武汉 430081)
摘要:以某含钒石煤为原料进行微波焙烧提钒研究,并与常规焙烧提钒进行对比,主要考察微波焙烧温度、微波焙烧时间、硫酸体积浓度、浸出时间、液固比、浸出温度对钒浸出率的影响。结果表明,在微波焙烧温度550 ℃、焙烧时间20 min、硫酸体积浓度15%、浸出时间6 h、∶1、浸出温度95 ℃的条件下,%,在相同浸出条件下,常规马弗炉700 ℃焙烧1 %。微波焙烧相对常规焙烧能在更低温度、更短时间内达到相同的提钒效果。
关键词:石煤;钒;微波;焙烧;酸浸
中图分类号: 文献标志码:A 文章编号:1007-7545(2015)01-0000-00
Effect of Microwave Roasting on Vanadium Extraction from Stone Coal
LIU Tao1,2,3, HU Peng-cheng1, ZHANG Yi-min1,2,3, YUAN Yi-zhong1,2
(1. College of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; 2. Hubei Provincial Engineering Technology Research Center of High efficient Cleaning Utilization for Shale Vanadium Resource, Wuhan 430081, China; 3. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan 430081, China)
Abstract:A stone coal was roasted by microwave. The result pared to that of conventional roasting in process of vanadium extraction from stone coal. The effects of microwave roasting temperature and time, concentration of sulfuric acid, leaching time and temperature, and ratio of liquid to solid (L/S) on vanadium leaching rate were investigated. The results show that the leaching rate of