石煤钒矿低温碱性焙烧—水浸钒试验研究  

Research on Roasting at Low Temperature and Leaching of Vanadium From Stone-coal

作　　者：邢学永[1] 

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：《湿法冶金》2015年第4期275-278,共4页Hydrometallurgy of China

摘　　要：研究了用低温碱性焙烧—水浸工艺从石煤矿中提取钒,考察了焙烧条件（碱矿质量比、盐矿质量比、焙烧温度、焙烧时间）及浸出条件（温度、时间、液固体积质量比）对钒浸出率的影响。结果表明：在焙烧温度500℃、焙烧时间1.0h、碱（NaOH）矿（脱碳料）质量比1.5、盐（NaNO3）矿（脱碳料）质量比0.50~0.75的最佳条件下进行焙烧,然后在温度60℃、液固体积质量比4∶1条件下浸出1h,钒浸出率最高可达99.0%。The process of extracting vanadium from stone coal at low temperature by alkaline roasting was studied.The effects of various factors,such as alkaline-ore mass ratio,salt-ore mass ratio,roasting temperature and roasting time on the leaching of vanadium were examined.The results show that the optimum conditions of the process are determined as follows：alkaline-ore mass ratio of 1.5,salt-ore mass ratio of 0.50-0.75,roasting temperature of 500 ℃,roasting time of 1h.The leaching rate of vanadium is up to 99.0% under the optimum operation conditions.

关 键 词：低温 碱性 焙烧 石煤 钒 提取 

分 类 号：TF841.3[冶金工程—有色金属冶金] TF803.21