中国钼业2025，Vol.49Issue(5)：30-37,8.DOI:10.13384/j.cnki.cmi.1006-2602.2025.05.006
不同空白焙烧工艺对石煤钒浸出特性的影响
Influences of Various Blank-Roasting Leaching Techniques for Vanadium Leaching Characteristics from Stone Coal
摘要
Abstract
Taking the stone-coal in Shanyang county,Shangluo city,Shannxi provience as raw material,the leaching characteristics of vanadium were studied using two technique methods,namely pelleting-roasting leaching and powder-roasting leaching.The results indi-cate that the leaching rate of vanadium can reach 91.2%using pelleting-roasting leaching technique under condition of particle size of-0.074 mm accounting for 85.4%,roasting temperature of 860℃,roasting interval of 12 h,sulfuric acid concentration of 6%,leac-hing period of 4 h,leaching temperature of 80℃,solid-liquid ratio of 1∶2.Meantime,the leaching rate of vanadium is86.2%using powder-roasting leaching technique when the grinding fineness less than0.074 mm is83.2%,roasting temperature is870℃,roasting interval is 20 h,eaching period is 5 h,leaching temperature is 70℃and solid-liquid ratio is 1∶2.The indexes of pelleting-roasting leaching is better than powder-roasting leaching for the same sample and the related conclusions can provide some references for desig-ning the vanadium extraction process from the stone coal.关键词
石煤/空白焙烧/浸出/造球/湿法提钒Key words
stone coal/blank roasting/leaching/palleting/vanadium extracting using wetting process分类
矿业与冶金引用本文复制引用
刘明宝,刘东,南宁,符会敏,王进,李昂,张延臣,张广林,余富良..不同空白焙烧工艺对石煤钒浸出特性的影响[J].中国钼业,2025,49(5):30-37,8.基金项目
国家自然科学基金项目(21973058) （21973058）
陕西省重点研发计划项目(2023-YBSF-344) （2023-YBSF-344）
陕西省秦创原"科学家+工程师"队伍建设(2024QCY-KXJ-147) （2024QCY-KXJ-147）
陕西省教育厅产业化培育项目(24JC034) （24JC034）
