Recovery of zinc from EAF dust by alkaline extraction

被引：3
|
作者：
Jiang, Jiachao [1 ]
Yang, Xiaoyu [2 ]
Zhao, Youcai [1 ]
机构：
[1] Tongji Univ, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China
[2] Environm Monitoring Stat, Jinan 250014, Peoples R China
来源：
ENVIRONMENT MATERIALS AND ENVIRONMENT MANAGEMENT PTS 1-3 | 2010年 / 113-116卷
关键词：
electric arc furnace dust; hazardous waste; zinc; alkaline leach; electrolysis; ARC FURNACE DUST;
D O I：
10.4028/www.scientific.net/AMR.113-116.2299
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this paper, a series of lab-scale experiments have been focused on the zinc recovery from electric arc furnace (EAF) dust by alkaline extraction, combining with the novel alkaline zinc electrowinning technology. Effects of several leaching variables, i.e. leaching time (1-3 h), NaOH concentration (150-400 g/L), solid/liquid ratio (S/L, 1/5-1/12), temperature (30-90 degrees C) and stirring speed (300-500 rpm) on zinc recovery (%) were investigated. Around 84 %Zn and 92 % Pb were respectively recovered when the leaching process was operated with 250 g/L NaOH and S/L 1/10 at 90 degrees C for 2 h. After Pb was selectively removed by sodium sulfide precipitation, the alkaline zinc solution was subjected to electrolysis and zinc powder with a purity of 98.5 % was then obtained. The leaching residue is suitable for safe disposal, while the purifying residue can be marketed for lead recovering.
引用
收藏
页码：2299 / +
页数：3
相关论文
共 50 条
  • [1] Elimination of zinc ferrite for hydrometallurgical recovery of zinc from eaf dust
    Ye, Guozhu
    Burstrom, Eric
    Maccagni, Massimo
    Bianc, Loris
    Stripple, Hakan
    [J]. SOHN INTERNATIONAL SYMPOSIUM ADVANCED PROCESSING OF METALS AND MATERIALS, VOL 6: NEW, IMPROVED AND EXISTING TECHNOLOGIES: AQUEOUS AND ELECTROCHEMICAL PROCESSING, 2006, : 397 - 411
  • [2] Solid/liquid extraction of zinc from EAF-dust
    Hilber, T
    Marr, R
    Siebenhofer, M
    Zapfel, W
    [J]. SEPARATION SCIENCE AND TECHNOLOGY, 2001, 36 (5-6) : 1323 - 1333
  • [3] Zinc extraction from EAF dust with the Ezinex(R) process
    Olper, M
    [J]. REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 1997, 94 (01): : 111 - &
  • [4] Extraction of zinc from EAF dust by alkaline leach followed by fusion of the leach residue in caustic soda
    Zhao, YC
    Stanforth, R
    [J]. PROCEEDINGS OF THE 8TH INTERNATIONAL SYMPOSIUM ON EAST ASIAN RESOURCES RECYCLING TECHNOLOGY-2005: RESOURCES RECYCLING TECHNOLOGY-2005, 2005, : 236 - 239
  • [5] Zinc recovery from EAF dust through thermal reduction
    Mishra, D
    Kanari, N
    Gaballah, I
    Dupré, B
    [J]. FUNDAMENTALS OF ADVANCED MATERIALS FOR ENERGY CONVERSION, 2002, : 349 - 357
  • [6] Zinc recovery from EAF dust by the iron reduction distillation process
    Sukonthanit, S
    Gray, NB
    Kyllo, AK
    Swinbourne, D
    Somsiri, C
    [J]. 59TH ELECTRIC FURNACE CONFERENCE AND 19TH PROCESS TECHNOLOGY CONFERENCE PROCEEDINGS, 2001, 19 : 619 - 632
  • [7] EZINEX, the electrolytic process for zinc recovery from EAF flue dust
    Olper, M
    Wiaux, JP
    [J]. REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 1998, 95 (10): : 1231 - +
  • [8] Ultrasound effects on zinc recovery from EAF dust by sulfuric acid leaching
    K. Brunelli
    M. Dabalà
    [J]. International Journal of Minerals, Metallurgy, and Materials, 2015, 22 : 353 - 362
  • [9] Laboratory investigation of zinc recovery from EAF dust by bath smelting reduction
    Chen, WQ
    El Gammal, T
    [J]. JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, 2000, 7 (01): : 18 - 23
  • [10] Ultrasound effects on zinc recovery from EAF dust by sulfuric acid leaching
    K.Brunelli
    M.Dabalà
    [J]. International Journal of Minerals,Metallurgy and Materials, 2015, 22 (04) : 353 - 362
12345