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Adsorption Properties of a Polyamine Special Ion Exchange Resin for Removing Molybdenum from Ammonium Tungstate Solutions

Author

Listed:
  • Bin Zeng

    (School of Rare Earth and New Materials Engineering, Gannan University of Science and Technology, Ganzhou 341000, China
    School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
    Xinfeng Huarui Tungsten and Molybdenum New Materials Co., Ltd., Ganzhou 341000, China)

  • Xiangrong Zeng

    (School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China)

  • Lijinhong Huang

    (School of Architecture and Design, Jiangxi University of Science and Technology, Ganzhou 341000, China
    WA School of Mines: Minerals, Energy and Chemical Engineering, Faculty of Science and Engineering, Curtin University, Perth, WA 6150, Australia)

  • Wanfu Huang

    (School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China)

  • Ronghua Shu

    (School of Emergency Management and Safety Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China)

Abstract

A polyamine special ion exchange resin was used to adsorb Mo from ammonium tungstate solutions. The effects of adsorption time, S 2− concentration, adsorption temperature, CO 3 2− concentration, mass ratio of WO 3 to Mo, and Mo concentration on the Mo and WO 3 adsorption capacities were investigated. Energy dispersive spectrometer plane scans were used to study the distributions of Mo, W, S, and Na on the loaded polyamine special ion exchange resin and the desorbed polyamine special ion exchange resin. The results showed that the polyamine special ion exchange resin performed well during adsorption and desorption. Under the optimum conditions for the static adsorption experiments, the adsorption capacities for Mo and WO 3 were 99.29 mg/mL and 31.97 mg/mL, respectively, and the desorption rates for Mo and WO 3 were 99.35% and 99.43%, respectively. Adsorption and desorption of molybdenum and tungsten on the polyamine special ion exchange resin were investigated by dynamic adsorption experiments with an ammonium tungstate solution containing 125.0 g/L WO 3 , 12.50 g/L Mo, 15.65 g/L S 2− , and 0 g/L CO 3 2− . The adsorption capacities for Mo and WO 3 were 53.48 mg/mL and 9.79 mg/mL, and the adsorption rates for Mo and WO 3 were 99.05% and 1.81%, respectively. The loaded polyamine special resin was desorbed with a 45 g/L sodium hydroxide solution, and the dynamic desorption rates for Mo and WO 3 were 99.02% and 99.29%, respectively.

Suggested Citation

  • Bin Zeng & Xiangrong Zeng & Lijinhong Huang & Wanfu Huang & Ronghua Shu, 2023. "Adsorption Properties of a Polyamine Special Ion Exchange Resin for Removing Molybdenum from Ammonium Tungstate Solutions," Sustainability, MDPI, vol. 15(4), pages 1-14, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3837-:d:1074400
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