|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Removing Arsenic from the NiSO4 Solution Using Modified D301 Resin
||Ailiang Chen, Xintao Sun, Jinxi Qiao, Zhen Qian, Yan Zhang, Yutian Ma, Zhiqiang Liu, Lixue Shi
|On-Site Speaker (Planned)
Abstract: Arsenic is removed from the NiSO4 solution using modified D301 resin. The modification is based on the fact that WO42- react with AsO43- in the NiSO4 solution to form arsenotungstic ions. This study grafted WO42- onto the resin to remove arsenic in the NiSO4 solution and avoided the loss of tungsten. The effects of reaction time, temperature and the pH of solution on arsenic removal efficiency were investigated. When the reaction time is 4 h and the pH value of solution is 3.06, arsenic is remove using WO42- - loaded D301 in the NiSO4 solution at normal temperature. Results show that the concentration of As (V) from 50 mg/L fell to below 5 mg/L in the NiSO4 solution. There is no impurities were brought in the process of arsenic removal, achieving higher ratio of arsenic removal in the industry.
Keywords: Arsenic removal; NiSO4 solution; D301; Ratio of arsenic removal