Original Article

The kinetics of tungsten adsorption from acid leaching solution of scheelite by anion resin

¹ Jiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Ganzhou 341000, China
² School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

^* e-mail: 9120190049@jxust.edu.cn
^** e-mail: 1549346121@qq.com

Received: 20 April 2024
Accepted: 3 July 2024

Abstract

The adsorption kinetics of tungsten from acid leaching solution of scheelite was investigated. The effects of solution pH value (3.0–9.0), anion resin dosage (1–6 g), contact time (20–180 min) and reaction temperature (20–60 °C) on the tungsten adsorption were studied. The results showed that the tungsten adsorption was practically independent of reaction temperature at the investigated range, while increasing with the increases of resin dosage and contact time, and the decreases of solution pH value. The experimental data agreed quite well with the Langmuir model, with the maximum adsorption capacities of tungsten is 347.34 mg/g at 20 °C. In addition, SEM-EDS analysis further revealed that tungsten was well adsorbed by the anion resin.