浓硫酸熟化浸出提取湘西石煤中的钒  

Extraction of Vanadium from Stone Coal in Xiangxi by Concentrated Sulfuric Acid Curing Leaching

作　　者：蔡俊 高峰 颜文斌[2,3] 华骏 CAI Jun;GAO feng;YAN Wen-bin;HUA Jun(Xiangxi Autonomous Prefecture Institute of Science and Technology Information;Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province;College of Chemistry and Chemical Engineering,Jishou University)

机构地区：[1]湘西州科技信息研究所,湖南吉首416000 [2]矿物清洁生产与绿色功能材料开发湖南省重点实验室,湖南吉首416000 [3]吉首大学化学化工学院,湖南吉首416000

出　　处：《稀有金属与硬质合金》2023年第4期24-27,共4页Rare Metals and Cemented Carbides

基　　金：湘西自治州2019年科技计划项目重点项目(2019SF2001)。

摘　　要：采用浓硫酸熟化浸出湘西石煤中的钒,通过单因素实验和正交实验研究了硫酸用量、脱碳温度、熟化时间、熟化温度以及浸出时间对钒浸出率的影响。实验结果表明,在脱碳温度600℃、硫酸用量24%、熟化温度180℃、熟化时间8 h、浸出时间8 h条件下,钒浸出率为83.2%。该工艺提钒过程无有害气体产生,减少了环境污染。The concentrated sulfuric acid curing leaching was used in extracting vanadium from Xiangxi stone coal,the effects of sulfuric acid dosage,decarbonization temperature,curing time,curing temperature,and leaching time on leaching rate of vanadium were researched by single factor experiments and orthogonal experiments.The experiment results show that the leaching rate of vanadium is 83.2% under the conditions of decarbo-nization temperature of 600 ℃,sulfuric acid dosage of 24%,curing temperature of 180 ℃,curing time of 8 h and leaching time of 8 h.The vanadium extraction process does not produce harmful gases and reduces environmental pollution.

关 键 词：石煤 硫酸 熟化浸出 钒 脱碳 

分 类 号：TF841.3[冶金工程—有色金属冶金]