Studies on Recovery of Valuable Metals by Leaching Lead-Zinc Smelting Waste with Sulfuric Acid

被引:11
作者
Xin, Chunfu [1 ,2 ,3 ,4 ]
Xia, Hongying [1 ,2 ,3 ,4 ]
Jiang, Guiyu [1 ,2 ,3 ,4 ]
Zhang, Qi [1 ,2 ,3 ,4 ]
Zhang, Libo [1 ,2 ,3 ,4 ]
Xu, Yingjie [1 ,2 ,3 ,4 ]
机构
[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
[2] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Yunnan, Peoples R China
[3] Kunming Univ Sci & Technol, Kunming Key Lab Special Met, Kunming 650093, Yunnan, Peoples R China
[4] Minist Educ, Key Lab Unconvent Met, Kunming 650093, Yunnan, Peoples R China
基金
国家重点研发计划;
关键词
germanium; zinc; germanium-containing residues; sulfuric-acid leaching; recovery; zinc smelting residue; ARC FURNACE DUST; HYDROMETALLURGICAL EXTRACTION; REFINERY RESIDUES; HEAVY-METALS; GERMANIUM; AVAILABILITY; MANGANESE; BEHAVIOR;
D O I
10.3390/min12101200
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Germanium-containing residues (GCR) are a secondary resource rich in zinc (Zn) and germanium (Ge) produced in the Zn pyrometallurgical process and an important raw material for recovering Zn and Ge. To recycle the residue by hydrometallurgy, sulfuric acid is used to leach the residue under normal pressure. In this study, the experimental conditions (leaching temperature, leaching time, liquid/solid (L/S) mass ratio and initial acidity) were optimized through the experimental design to make the optimized experimental conditions consistent with the current industrial production conditions, so as to maximize the leaching rate of Zn and Ge, and the main reasons for the low leaching rate of germanium were analyzed. The results show that the optimum reaction conditions are as follows: initial acidity 160 g center dot L-1, leaching temperature 90 degrees C, L/S mass ratio 5:1, leaching time 60 min and stirring speed 400 r center dot min(-1). Under the optimum reaction conditions, the leaching rates of Zn and Ge are 83.22% and 77.29%, respectively. The reason for the low leaching rates of Zn and Ge in GCR was obtained through atmospheric leaching experiment, electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and chemical phase analysis. GCR is mainly composed of phases such as zincite (ZnO), galena (PbS), wurtzite (ZnS) and anglesite (PbSO4), and the main elements are Zn, lead (Pb), germanium (Ge), oxygen (O), sulfur (S), silicon (Si), aluminum (Al) and Fe. This study can provide a certain reference value for researchers, in order to provide a reference for the large-scale recycling of Zn and Ge resources in the future.
引用
收藏
页数:15
相关论文
共 40 条
[1]   Hydrometallurgically recovering zinc from electric arc furnace dusts [J].
Antrekowitsch, J ;
Antrekowitsch, H .
JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY, 2001, 53 (12) :26-28
[2]   Effects of rapid thermal annealing on the structural and local atomic properties of ZnO: Ge nanocomposite thin films [J].
Ceylan, Abdullah ;
Rumaiz, Abdul K. ;
Caliskan, Deniz ;
Ozcan, Sadan ;
Ozbay, Ekmel ;
Woicik, J. C. .
JOURNAL OF APPLIED PHYSICS, 2015, 117 (10)
[3]   Kinetics of microwave roasting of zinc slag oxidation dust with concentrated sulfuric acid and water leaching [J].
Chang, Jun ;
Zhang, Li-bo ;
Yang, Chang-jiang ;
Ye, Qianxu ;
Chen, Jing ;
Peng, Jin-hui ;
Srinivasakannan, Chandrasekar ;
Li, Wei .
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2015, 97 :75-83
[4]   A novel and sustainable technique to precipitate vanadium from vanadium-rich solutions via efficient ultrasound irradiation [J].
Chen, Bo ;
Bao, Shenxu ;
Zhang, Yimin ;
Ren, Liuyi .
JOURNAL OF CLEANER PRODUCTION, 2022, 339
[5]   Synergetic strengthening mechanism of ultrasound combined with calcium fluoride towards vanadium extraction from low-grade vanadium-bearing shale [J].
Chen, Bo ;
Bao, Shenxu ;
Zhang, Yimin .
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2021, 31 (06) :1095-1106
[6]   Photochemical mineralization of di-n-butyl phthalate with H2O2/Fe3+ [J].
Chiou, Chyow-San ;
Chen, Yi-Hung ;
Chang, Chang-Tang ;
Chang, Ching-Yuan ;
Shie, Je-Lueng ;
Li, Yuan-Shan .
JOURNAL OF HAZARDOUS MATERIALS, 2006, 135 (1-3) :344-349
[7]  
Claeys C., 2007, Germanium-based technologies: from materials to devices
[8]   Germanium: From the first application of Czochralski crystal growth to large diameter dislocation-free wafers [J].
Depuydt, Ben ;
Theuws, Antoon ;
Romandic, Igor .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2006, 9 (4-5) :437-443
[9]   Mechanism and kinetics study on ultrasound assisted leaching of gallium and zinc from corundum flue dust [J].
Ding, Wei ;
Bao, Shenxu ;
Zhang, Yimin ;
Xiao, Junhui .
MINERALS ENGINEERING, 2022, 183
[10]   Efficient Selective Extraction of Scandium from Red Mud [J].
Ding, Wei ;
Bao, Shenxu ;
Zhang, Yiming ;
Xiao, Junhui .
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW, 2023, 44 (04) :304-312