石煤沸腾焙烧料提取五氧化二钒工艺研究  

Study on the Process of Extracting Vanadium Pentoxide from Stone Coal Boiling Roasting Material

作　　者：万洪强[1] 张丽芬[1] 王奉刚[1] 马云聪 WAN Hong-qiang;ZHANG Li-fen;WANG Feng-gang;MA Yun-cong(Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha 410012,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《稀有金属与硬质合金》2023年第4期18-23,共6页Rare Metals and Cemented Carbides

基　　金：2020年国家重点研发计划项目(020YFC1909700)。

摘　　要：针对石煤沸腾焙烧料提钒原料差异大、工艺流程过长、钒回收率低(大多低于60%)、成本偏高等问题,采用拌酸熟化浸出-氧化中和-离子交换-铵盐沉钒-煅烧的工艺路线提钒。实验结果表明,在硫酸用量为原料质量的20%、熟化温度100℃、熟化时间6 h的条件下,石煤沸腾焙烧料中的钒浸出率达到90.2%,最终制备得到的产品V_(2)O_(5)粉末质量稳定可靠,达到了行业标准水平。该工艺流程短,工程建设投资低、钒回收率高、提钒冶炼成本低,取得了较好的经济技术指标。In response to the problems of large differences in raw materials,long process flow,low vanadium recovery rate(mostly below 60%),and high cost in extracting vanadium from stone coal boiling roasting materials,a process route of mixing acid,curing and leaching-oxidation neutralization-ion exchange-vana-dium precipitation with ammonium salt-calcination was adopted to extract vanadium.The experimental results show that under the conditions of sulfuric acid dosage of 20% of the raw material weight,curing temperature of 100 ℃,and curing time of 6 h,the vanadium leaching rate of stone coal boiling roasting material reaches 90.2%.The final product V_(2)O_(5) powder quality is stable and reliable,which reaches the level of industry standards.This process has a short process flow,low engineering construction investment,high vanadium recovery rate,and low vanadium smelting cost,achieving good economic and technical indicators.

关 键 词：石煤 沸腾焙烧 五氧化二钒 拌酸熟化 离子交换 铵盐沉钒 

分 类 号：TF841.3[冶金工程—有色金属冶金]