摘要
提出了在As-NaOH-ClO体系脱砷的方法,并以含砷镍烟灰为原料,系统研究了该体系下的脱砷效果。结果表明:在液固比L/S=10、NaClO浓度4.1%、NaOH浓度3%、反应温度50℃、反应时间1h的最优条件下,砷脱除率达到75%以上,镍损失率小于0.03%,可实现砷的无害化处理和金属镍的回收。
A method to remove arsenic in As-NaOH-ClO~-system was proposed.Arsenic removal effect was investigated with arsenic-bearing nickel dust as raw material.The results show that arsenic removal rate is 75%above and nickel loss ratio is 0.03% below under the optimum conditions including L/S=10,NaClO concentration of 4.1%,NaOH concentration of 3%,reaction temperature of 50 ℃,and reaction time of 1 h.Harmless treatment of arsenic and recovery of nickel metal are realized.
作者
苏俊敏
张鹏
徐文芳
赵秀丽
SU Jun-min;ZHANG Peng;XU Wen-fang;ZHAO Xiu-li(State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization,Jinchang 737100,Gansu,China;Jinchuan Nickel-Cobalt Research and Design Institute,Jinchang 737100,Gansu,China)
出处
《有色金属(冶炼部分)》
CAS
北大核心
2021年第1期10-14,共5页
Nonferrous Metals(Extractive Metallurgy)
基金
2017年甘肃省自然科学基金项目(1610RJZC119)。