铀矿冶2025，Vol.44Issue(3)：50-57,8.DOI:10.13426/j.cnki.yky.2024.12.11
不同酸处理工艺对石煤钒浸出特性的影响
Leaching Characteristics of Stone Coal Vanadium Using Various Acid Treatment Processes
摘要
Abstract
Taking the stone coal vanadium ore in Danfeng country,Shangluo city,Shannxi province as the research object,the vanadium leaching characteristics were studied using direct acid leaching and sulphuric acid-curing leaching process,respectively.The results indicate that the optimum vanadium leaching rate is 86.7％when using direct acid leaching process under conditions of sample fineness of 45％,H2SO4 concentration of 14％,leaching period of 6 h,leaching temperature of 80 ℃,Ca(ClO)2 dosages of 3％,CaF2 dosages of 2％,and the solid-liquid ratio of 1∶2.While the vanadium leaching rate can reach to 93.5％at ambient temperature by using sulphuric acid-curing leaching process under the conditions of sample fineness of 80％,H2SO4 dosages of 20％,wetting water dosages of 7.5％,curing temperature of 110 ℃,interval time of 10 h,water leaching period of 120 min,solid-liquid ratio of 1∶2.The results for sulphuric acid-curing leaching process is better than that for direct acid leac-hing process,and the conclusion can provide technical support for vanadium extraction from stone coal in Shannan region.关键词
石煤钒矿/酸浸/硫酸熟化/石煤/钒Key words
stone coal vanadium ore/acid-leaching/sulphuric acid-curing/stone coal/vanadium分类
矿业与冶金引用本文复制引用
刘明宝,李建涛,左恒,李云霄,姚国超,闫建利,马文峰,庞宏建,赵统..不同酸处理工艺对石煤钒浸出特性的影响[J].铀矿冶,2025,44(3):50-57,8.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(2023YBSF344) （2023YBSF344）
陕西省秦创原"科学家+工程师"队伍建设项目(2024QCY-KXJ-147). （2024QCY-KXJ-147）
