An environmentally-friendly method to recover silver, copper and lead from copper anode slime by carbothermal reduction and super-gravity

被引:5
作者
Wen, Xiaochun [1 ,2 ,3 ]
Dai, Pinqiang [2 ,3 ]
Wang, Jinliang [4 ]
Guo, Lei [1 ]
Guo, Zhancheng [1 ]
机构
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
[2] Fujian Univ Technol, Sch Mat Sci & Engn, Fuzhou 350118, Peoples R China
[3] Fujian Prov Key Lab Adv Mat Proc & Applicat, Fuzhou 350118, Peoples R China
[4] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China
基金
中国国家自然科学基金;
关键词
Carbothermal reduction; Super-gravity; Lead-silver-copper; Copper anode slime; Recovery; SEPARATION; METALS; AG; ANTIMONY; SELENIUM; REMOVAL; SLAG; OPTIMIZATION; EXTRACTION; TELLURIUM;
D O I
10.1016/j.mineng.2022.107515
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In the present study, an effective and green method to recover silver, copper and lead from copper anode slime by carbothermal reduction and super-gravity separation was investigated. During the pretreatment process, 99.9% of selenium was removed from copper anode slime after sulphation roasting, and the valuable metals of lead, copper and silver were concentrated as the lead-silver-copper multiphase complex by carbothermal reduction. The influence of temperature on the reduction efficiency was studied and the results obtained were supported by thermodynamic analysis. Under the optimal super-gravity separation conditions of G = 600, T = 1423 K and t = 5 min, the filtrated lead-silver-copper multiphase complex and residual phases were obtained. Results showed that the yield of the filtrated Pb-Ag-Cu phase was about 83% and the recovery efficiencies of lead, silver and copper exceeded 98%, 96% and 89%, respectively. These residues could be recycled to the pretreatment processes. Finally, based on the phase diagram analysis and equilibrium calculations, the lead-silver and copper-silver phases can be obtained and this was demonstrated after super-gravity enrichment. This work confirmed that super-gravity technology was a feasible approach in the recovery of valuable metals from copper anode slime due to its significant advantages of high efficiency, simple operation, and being more environmentally-friendly.
引用
收藏
页数:14
相关论文
共 59 条
[1]  
Amer A.M., 2002, Physicochemical Problems of Mineral Processing, V36, P123
[2]   Processing of copper anodic-slimes for extraction of valuable metals [J].
Amer, AM .
WASTE MANAGEMENT, 2003, 23 (08) :763-770
[3]   Metal recovery from high-grade WEEE: A life cycle assessment [J].
Bigum, Marianne ;
Brogaard, Line ;
Christensen, Thomas H. .
JOURNAL OF HAZARDOUS MATERIALS, 2012, 207 :8-14
[4]   Preparation of pure SbCl3 from lead anode slime bearing high antimony and low silver [J].
Cao Hua-zhen ;
Chen Jin-zhong ;
Yuan Hai-jun ;
Zheng Guo-qu .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (12) :2397-2403
[5]   Manufacturing 3-D open-cell aluminum foam via infiltration casting in a super-gravity field [J].
Chang, Kuan ;
Gao, Jin-Tao ;
Wang, Zhe ;
Guo, Zhan-Cheng .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2018, 252 :705-710
[6]   Mineralogical characterization of a copper anode and the anode slimes from the La Caridad copper refinery of Mexicana de Cobre [J].
Chen, TT ;
Dutrizac, JE .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2005, 36 (02) :229-240
[7]  
COOPER WC, 1990, JOM-J MIN MET MAT S, V42, P45
[8]   RECOVERY OF COPPER FROM SMELTING SLAG BY SULPHATION ROASTING AND WATER LEACHING [J].
Dimitrijevic, Mile D. ;
Urosevic, Daniela M. ;
Jankovic, Zoran D. ;
Milic, Snezana M. .
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, 2016, 52 (01) :409-421
[9]   Integrated process for recycling copper anode slime from electronic waste smelting [J].
Ding, Yunji ;
Zhang, Shengen ;
Liu, Bo ;
Li, Bin .
JOURNAL OF CLEANER PRODUCTION, 2017, 165 :48-56
[10]   Comprehensive recoveries of selenium, copper, gold, silver and lead from a copper anode slime with a clean and economical hydrometallurgical process [J].
Dong, Zhonglin ;
Jiang, Tao ;
Xu, Bin ;
Yang, Junkui ;
Chen, Yanzhu ;
Li, Qian ;
Yang, Yongbin .
CHEMICAL ENGINEERING JOURNAL, 2020, 393 (393)