期刊论文

中文

稀有金属与硬质合金

1004-0536

2023

51

1

17-23

10.19990/j.issn.1004-0536.2023.01.017.07

科技部重点研发计划项目(2019YFC1907701)。

本校为第一机构

用离子交换法回收水解沉钒工艺沉淀母液中的钒，考察了树脂类型、料液pH、温度和吸附时间等对钒吸附效果的影响，对D314树脂吸附钒的动力学和等温吸附模型进行了研究，并进行了柱式动态吸附和解吸钒的试验，提出采用解吸合格液溶解红钒。结果表明：在pH为2.4,温度为45℃,吸附时间为40 h的条件下，D314树脂对V2O5的饱和吸附容量为243 mg/mL。以5%NaOH+10%NaCl为解吸剂，解吸液峰值处V2O5浓度达67.5 g/L,富集比达23.6倍。D314树脂对钒的吸附行为符合准一级吸附动力学方程，等温吸附过程符合Langmuir模型。用离子交换法回收沉淀母液中的钒，吸附率大于95.5%,解吸率大于98.2%,解吸合格液可用来溶解红...

Vanadium in the precipitated mother liquor from the hydrolytic precipitation process was reco-vered by ion exchange,and the effects of resin type,feed solution pH,temperature and adsorption time on vanadium adsorption were investigated.The kinetics and isothermal adsorp...MORE Vanadium in the precipitated mother liquor from the hydrolytic precipitation process was reco-vered by ion exchange,and the effects of resin type,feed solution pH,temperature and adsorption time on vanadium adsorption were investigated.The kinetics and isothermal adsorpti...