有色金属科学与工程2024，Vol.15Issue(2)：180-188,9.DOI:10.13264/j.cnki.ysjskx.2024.02.004
基于产物形貌的超声波辅助置换除铜的机理研究
Mechanism of ultrasound-assisted replacement for copper removal based on products morphology
摘要
Abstract
In this paper,ultrasound-assisted copper removal from zinc sulfate solution was conducted,focusing on the mechanism of ultrasonic enhancement in copper removal by zinc replacement.The study used techniques including metallographic microscopy,scanning electron microscopy,X-ray diffractometry and Image J to characterize the morphology and distribution of the replacement product layer.The Cu(Ⅱ)concentration in the solutions at different purification stages was also analyzed by plasma emission spectrometry.The results showed that the ultrasonic intensity could affect the copper removal by replacement in purification.The low-intensity ultrasound(500 W)affects the interfacial products weakly,while the high-intensity ultrasound(2000 W)significantly affects the morphology and distribution of the solid product layer.Furthermore,it can reinforce the diffusion process in the solid product layer,and the generated thermal effect also contributes to the replacement reaction efficiency.The high-powered ultrasound leads to a discontinuous distribution of small sphere-like particles over the zinc surface,enlarging the contact area between the two phases.At the same time,it forms through holes in the solid product layer,reducing the structural resistance to diffusion of the solution.关键词
超声波/置换/除铜/锌/机理Key words
ultrasound/replacement/copper removal/zinc/mechanism分类
矿业与冶金引用本文复制引用
雷宇,胡新波,朱纯成,许茜,孙晨藤,邹星礼,程红伟,鲁雄刚..基于产物形貌的超声波辅助置换除铜的机理研究[J].有色金属科学与工程,2024,15(2):180-188,9.基金项目
国家自然科学基金资助项目(U20022114) （U20022114）
