钒磷铁渣在酸性氧化体系中的浸钒工艺研究  

Oxidative-leaching of Vanadium from Vanadium-posphorus Iron slag in acid solution

作　　者：赖增哲 马萍 LAI Zengzhe;MA Ping(Guangdong Eco-engineering Polytechnic,Guangzhou Guangdong 510520,China)

机构地区：[1]广东生态工程职业学院,广东广州510520

出　　处：《石油化工应用》2024年第9期92-96,共5页Petrochemical Industry Application

基　　金：全国轻工职业教育教学指导委员会2022年度课题(QGJY2022038);广东生态工程职业学院2022年校级教育教学改革研究与实践项目(2022zlgc-xj-jxgg13);广东生态工程职业学院2023年校级教育质量工程项目(2023zlgcxj-xnjd10)。

摘　　要：以钒磷铁渣为研究对象,采用盐酸-过硫酸钠为浸出体系,研究酸浸提钒工艺技术。探索浸出温度、浸出时间、盐酸浓度、过硫酸钠用量、样品粒度和液固比等对钒浸出的影响。结果表明:在浸出温度95℃、浸出时间22 h、盐酸浓度25%、过硫酸钠用量6.4 g/g、样品粒度200目、液固比10∶1、搅拌速度400 r/min的较佳条件下,钒浸出率达到87.36%。The leaching of vanadium from vanadium-phosphorus iron slag was investigated in hydrochloric acid solution with sodium persulfate.The effects of factors including leaching temperature and time,acid concentration,sodium persulfate,particle size and liquid-solid ratio were studied in detail.The results show that the exaction of vanadium can reach to 87.36%under the optimum conditions of extraction temperature 95℃,extraction time 22 h,25%of the concentration of hydrochloric acid,sodium persulfate dosage of 6.4 g/g,particle size of less 200 mesh,liquid-solid ratio 10∶1,stirring speed of 400 r/min.

关 键 词：钒磷铁渣 氧化酸浸 钒的浸出率 过硫酸盐 

分 类 号：TF841.3[冶金工程—有色金属冶金]