Ultrasonic-enhanced selective sulfide precipitation of copper ions from copper smelting dust using monoclinic pyrrhotite

作     者：Xing-fei ZHANG Jia YUAN Jia TIAN Hai-sheng HAN Wei SUN Tong YUE Yue YANG Li WANG Xue-feng CAO Cheng-long LU 张荥斐;袁佳;田佳;韩海生;孙伟;岳彤;杨越;王丽;曹学锋;卢承龙

作者机构：School of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral ResourcesCentral South UniversityChangsha 410083China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2022年第32卷第2期

页      面：682-695页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：the National Key Scientific Research Project,China(Nos.2018YFC1901601,2018YFC1901602) the Fundamental Research Funds for the Central Universities of Central South University,China(No.2021zzts0307) the National Natural Science Foundation of China(No.51804340) the Innovation-driven Plan of Central South University,China(No.2018CX036) the Collaborative Innovation Center for Clean and Efficient Utilization of Strategic Metal Mineral Resources,China,and Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources,China(No.2018TP1002) 

主　　题：ultrasonic-assisted treatment monoclinic pyrrhotite copper smelting dust arsenic removal selective sulfide precipitation 

摘      要：The sulfide passivation film produced on the surface seriously prevents further reaction in the process of using monoclinic pyrrhotite(MPr)to treat heavy metal ions in *** technology was introduced to assist MPr to recover the copper *** result proves that CuS products exist on the surface of *** and SEM results show that the CuS on the particles’surface is stripped under ultrasonic *** kinetics results indicate that the reaction under both conventional and ultrasonic conditions conform to the Avrami *** reaction process changes from diffusion control to chemical reaction control under the ultrasonic condition as the solid layer is stripped *** presence of ultrasonic significantly reduces the acidity and temperature required for the reaction and enhances the utilization efficiency of MPr;by controlling the amount of MPr,the removal rates of copper and arsenic in copper smelting dust leachate exceed 99%and 95%,respectively.