石煤清洁焙烧提钒工艺  

Clean-roasting Technology of Extracting Vanadium from Stone Coal

作　　者：高峰[1,2,3] 华骏 颜文斌[1,2,3] 蔡俊 石美莲[1,2,3] GAO Feng;HUA Jun;YAN Wenbin;CAI Jun;SHI Meilian(College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,China;The Collaborative Innovation Center of Manganese-zinc-vanadium Industrial Technology(the 2011 Plan of Hunan Province),Jishou 416000,China;Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province,Jishou 416000,China)

机构地区：[1]吉首大学化学化工学院,湖南吉首416000 [2]湖南省2011计划“锰锌钒产业技术”协同创新中心,湖南吉首416000 [3]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

出　　处：《有色金属工程》2020年第5期44-48,共5页Nonferrous Metals Engineering

基　　金：湘西土家族苗族自治州科技计划项目—重点项目(2019SF2001)。

摘　　要：以石煤为原料,钠沸石、碳酸钠为复合添加剂,采用焙烧技术提取石煤中的钒。考察了复合添加剂钠沸石、碳酸钠用量,以及焙烧温度、焙烧时间、浸出温度、浸出时间和硫酸用量等焙烧和浸出工艺参数对钒浸出率的影响,并进行了平行实验。结果表明,当钠沸石用量7%、碳酸钠用量9%、焙烧温度750℃、焙烧时间4 h、浸出温度60℃、浸出时间4 h、硫酸用量为3%时,钒的浸出率可高达92.59%,焙烧过程无废气污染,清洁高效。The stone coal was used as raw material,the natrolite and sodium carbonate were added as composite additives,roasting technology was used to extract vanadium of stone coal.Natrolite dosage,sodium carbonate dosage,roasting temperature,roasting time,leaching temperature,leaching time and sulfuric acid dosage were investigated on the leaching rate of vanadium,and a parallel experiment was carried out.The results showed that when the natrolite dosage was 7%,sodium carbonate was 9%,roasting temperature was 750℃,roasting time was 4 h,leaching temperature was 60℃,leaching time was 4 h and sulfuric acid dosage was 3%,the leaching rate of vanadium was 92.59%.There is no waste gas in the roasting process and the process is clean and efficient.

关 键 词：石煤 钒 钠沸石 焙烧 浸出 

分 类 号：TF841.3[冶金工程—有色金属冶金]