超声协同氧化剂浸出高硅低锗氧化锌烟尘研究  

Study on Leaching of Zinc Oxide Dust with High Silicon and Low Germanium by Ultrasonic Coordination with Oxidant

作　　者：付光 韦洁 陆占清 裴启飞 梁辰 徐英杰 夏洪应[2,3] FU Guang;WEI Jie;LU Zhanqing;PEI Yunfei;LIANG Chen;XU Yingjie;XIA Hongying(Yunnan Chi hong Zn&Ge Co.,Ltd.,Qujing 655011,Yunnan,China;Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]云南驰宏锌锗股份有限公司,云南曲靖655011 [2]昆明理工大学冶金与能源工程学院,昆明650093 [3]云南省特种冶金重点实验室,昆明650093

出　　处：《有色金属(冶炼部分)》2025年第2期116-124,共9页Nonferrous Metals(Extractive Metallurgy)

基　　金：国家重点研发计划项目(2021YFC2902801);云南省锌资源技术创新中心资助项目(202405AK340004);云南省“兴滇英才支持计划”产业创新人才项目(云发改人事[2019]1096号)。

摘　　要：在高硅低锗氧化锌烟尘浸出过程中引入超声波协同氧化剂强化浸出,旨在提高锌和锗的浸出效率。选用过氧化氢(H_(2)O_(2))作为氧化剂,对硫酸初始浓度、液固比、H_(2)O_(2)与H_(2)SO_(4)浓度比、温度及超声波功率对锌、锗浸出率的影响规律进行研究。研究表明,在硫酸初始浓度1.8 mol/L、H_(2)O_(2)与H_(2)SO_(4)浓度比1∶1、液固体积质量比7 mL/g、浸出时间60 min、浸出温度70℃、超声波功率300 W的条件下,锌和锗的浸出率分别达到98.16%和86.14%。与相同条件下常规工艺相比,锌和锗浸出率分别提高了14.66%和17.37%。此外,分析了高硅低锗烟尘超声强化浸出过程中的反应机制,为工艺优化提供了理论基础。The aim of this study is to improve the leaching efficiency of zinc and germanium in high silicon and low germanium zinc oxide dust by introducing ultrasonic co-oxidant.Hydrogen peroxide was used as the oxidizer.The initial sulfuric acid concentration,liquid-solid ratio,molar concentration ratio of H_(2)O_(2) to H_(2)SO_(4),temperature,and ultrasonic power were optimized.The results show that when the initial concentration of sulfuric acid was 1.8 mol/L,the concentration ratio of hydrogen peroxide to sulfuric acid was 1∶1,the liquid-solid mass ratio was 7,the leaching time was 60 min,the leaching temperature was 70℃,and the ultrasonic power was 300 W,the leaching rates of zinc and germanium reached the highest value,and the leaching rates of zinc and germanium were 98.16%and 86.14%,respectively.Compared with the conventional process without ultrasonic and hydrogen peroxide under the same conditions,the leaching rates of the two methods are increased by 14.66%and 17.37%respectively.In addition,the study also analyzed the reaction mechanism in the leaching process,which provided a theoretical basis for the subsequent process optimization.

关 键 词：超声 氧化剂 协同浸出 高硅低锗氧化锌烟尘 过氧化氢 

分 类 号：TF813[冶金工程—有色金属冶金] TF843