中国资源综合利用2026，Vol.44Issue(5)：1-6,6.DOI:10.3969/j.issn.1008-9500.2026.05.001
低镉铜硫酸锌溶液超声波强化锌粉置换除镉铜研究
Study on the Removal of Cadmium and Copper from Low Cadmium Copper Zinc Sulfate Solution by Ultrasonic Enhanced Zinc Powder Replacement
摘要
Abstract
In the process of removing cadmium(Cd)and copper(Cu)from zinc sulfate solution,the passivation and encapsulation of zinc powder lead to the low utilization rate of zinc powder.In order to solve this problem,an ultrasonic-enhanced industrial atomization zinc powder was proposed to remove Cd and Cu from the three-stage purification solution of zinc sulfate.The effects of zinc powder dosage,reaction time and ultrasonic power on the concentration of Cd and Cu in the solution under conventional conditions and ultrasonic enhanced conditions were investigated respectively.The optimum parameters of conventional purification process were determined as follows:reaction temperature 65℃,zinc powder dosage 0.6 g/L,reaction time 90 min.The mass concentration of Cd and Cu in zinc sulfate solution decreased from 46.51 mg/L and 9.34 mg/L to 0.148 mg/L and 0.104 mg/L,respectively.The optimum parameters of the ultrasonic purification process are as follows:reaction temperature 50℃zinc powder dosage 0.5 g/L,reaction time 60 min,ultrasonic power 30 W,the mass concentration of Cd and Cu is reduced to 0.510 mg/L and 0.022 mg/L.The concentration of Cd and Cu after purification by the two processes meets the requirements of zinc electrowinning for impurity concentration.Compared with the conventional process,the ultrasonic purification process reduces the reaction temperature,shortens the reaction time,and saves 16.67%of zinc powder.关键词
超声波/硫酸锌溶液/锌粉净化/水解/包裹Key words
ultrasonic/zinc sulfate solution/zinc powder purification/hydrolysis/encapsulation分类
矿业与冶金引用本文复制引用
杨卜,李宁廷,李宏伟,朱建伟,徐英杰,夏洪应..低镉铜硫酸锌溶液超声波强化锌粉置换除镉铜研究[J].中国资源综合利用,2026,44(5):1-6,6.基金项目
云南省锌资源技术创新中心项目(202405AK340004) （202405AK340004）
中央引导地方科技发展资金(202407AB110022). （202407AB110022）
