石煤钒矿的钡盐焙烧—酸浸提钒工艺研究  

Extraction of Vanadium from Stone Coal Vanadium Ore by Barium Salt Roasting—Acid Leaching Process

作　　者：吴天骄 康敏 李和付 顾天宇 郭拴全 郭梅 宁新霞 WU Tianjiao;KANG Min;LI Hefu;GU Tianyu;GUO Shuanquan;GUO Mei;NING Xinxia(Xi′an Northwest Nonferrous Geological Research Institute Co.,Ltd.,Xi′an 710054,China;Shaanxi Engineering and Technology Research Center for Comprehensive Utilization of Mineral Resources,Xi′an 710054,China;Shanyang Qinding Mining Co.,Ltd.,Shangluo 726403,China)

机构地区：[1]西安西北有色地质研究院有限公司,陕西西安710054 [2]陕西省矿产资源综合利用工程技术研究中心,陕西西安710054 [3]山阳秦鼎矿业有限责任公司,陕西商洛726403

出　　处：《湿法冶金》2025年第1期17-24,共8页Hydrometallurgy of China

摘　　要：针对含钒物相以绢云母为主、钒以类质同象形式赋存的石煤钒矿,研究了用重晶石焙烧—酸浸工艺从中提取钒,考察了磨矿细度、重晶石用量、焙烧温度、焙烧时间、液固体积质量比、硫酸用量、浸出温度及浸出时间对钒浸出率的影响。结果表明:石煤钒矿磨矿细度为-200目占比70%、重晶石用量5%、焙烧温度850℃、焙烧时间16 h、液固体积质量比2/1、硫酸用量8%、浸出温度25℃和浸出时间2 h条件下,钒浸出率可达89%以上,浸出效果较好。Extracting vanadium from stone coal vanadium ore with sericite as the main material and vanadium in the form of isomorphic vanadium by barium salt roasting—acid leaching was studied.The effects of grinding fineness,dosage of barite,roasting temperature,roasting time,liquid volume to solid mass ratio,sulfuric acid dosage,leaching temperature and leaching time on vanadium leaching rate were investigated.The results show that the vanadium leaching rate can reach 89%under the conditions of grinding fineness of-200 meshes of 70%,barite content of 5%,roasting temperature of 850℃,roasting time of 16 h,liquid volume to solid mass ratio of 2.0,sulfuric acid dosage of 8%,leaching temperature of 25℃and leaching time of 2 h.The leaching effect is good.

关 键 词：石煤钒矿 焙烧 重晶石 提钒 酸浸 

分 类 号：TF841.3[冶金工程—有色金属冶金] TF803.21