An environmental-friendly process for recovery of tellurium and copper from copper telluride

被引：24

作者：

Xu, Liang ^{[1
,2
]}

Xiong, Yanhang ^{[1
]}

Zhang, Guangan ^{[1
]}

Zhang, Fuyuan ^{[1
]}

Yang, Yongxiang ^{[3
]}

Hua, Zhongsheng ^{[1
]}

Tian, Yongpan ^{[1
]}

You, Jinglin ^{[2
]}

Zhao, Zhuo ^{[1
]}

机构：

[1] Anhui Univ Technol, Sch Met Engn, Maanshan 243032, Peoples R China

[2] Shanghai Univ, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China

[3] Delft Univ Technol, Dept Mat Sci & Engn, NL-2628 CD Delft, Netherlands

来源：

JOURNAL OF CLEANER PRODUCTION | 2020年 / 272卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Cu2Te; Tellurium recovery; Atmospheric alkaline leaching; Mechanochemical-assisted leaching; TeO2; EXTRACTION; KINETICS; REMOVAL; SLIMES; SCRAP;

D O I：

10.1016/j.jclepro.2020.122723

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In the present study, a novel process for effective recoveries of Te and Cu from copper telluride from anode slime processing in copper smelters was proposed. The process consists of two hydrometallurgical steps of atmospheric alkaline leaching for Cu and Te separation, and TeO2 precipitation with H2SO4 for Te recovery. The effects of NaOH concentration, liquid to solid ratio, temperature, H2O2 to Cu2Te mole ratio, and reaction time on the dissolution behavior of tellurium were investigated. A Te leaching efficiency of about 91% was obtained under the optimal experimental conditions. The results of thermodynamic and kinetic analysis indicate that a lower temperature is favorable for the dissolution of Te, and mass transfer inside the solid particle is the rate-determining step. In addition, a mechanochemical-assisted leaching was conducted, by which Te leaching efficiency was enhanced to approximately 93% with ball milling at 180 rpm for 5 h. After Te leaching, H2SO4 was utilized to adjust the pH value of the Te-containing alkaline leach solution to 4.5 for TeO2 precipitation. The crystallization of TeO2 can be completed by reacting for 1 h and the overall tellurium recovery has reached nearly 90%. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：10

共 32 条

[1] Processing of copper anodic-slimes for extraction of valuable metals [J].

Amer, AM .

WASTE MANAGEMENT, 2003, 23 (08) :763-770

[2] Dissolution kinetics of sphalerite in acidic ferric chloride leaching [J].

Aydogan, S ;

Aras, A ;

Canbazoglu, M .

CHEMICAL ENGINEERING JOURNAL, 2005, 114 (1-3) :67-72

[3]

Barache UB., 2019, CHEM DATA COLLECT, V19, P100173, DOI DOI 10.1016/J.CDC.2018.100173

[4] Leaching kinetics study of neodymium from the scrap magnet using acetic acid [J].

Behera, S. S. ;

Parhi, P. K. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2016, 160 :59-66

[5]

Charles Ph., 1970, COPP MET P AIME DENV, P240

[6] OXIDES AND OXYACIDS OF TELLURIUM [J].

DUTTON, WA ;

COOPER, WC .

CHEMICAL REVIEWS, 1966, 66 (06) :657-&

[7]

El-Mallawany R.A.H., 2011, Tellurite Glasses Handbook: Physical Properties and Data, V2nd

[8] Recovery of tellurium from high tellurium-bearing materials by alkaline pressure leaching process: Thermodynamic evaluation and experimental study [J].

Fan, Youqi ;

Yang, Yongxiang ;

Xiao, Yanping ;

Zhao, Zhuo ;

Lei, Ying .

HYDROMETALLURGY, 2013, 139 :95-99

[9] Processing of copper electrorefining anode slime: a review [J].

Hait, J. ;

Jana, R. ;

Sanyal, S. .

TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY SECTION C-MINERAL PROCESSING AND EXTRACTIVE METALLURGY, 2009, 118 (04) :240-252

[10] Some studies on sulfuric acid leaching of anode slime with additives [J].

Hait, J ;

Jana, RK ;

Kumar, V ;

Sanyal, SK .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2002, 41 (25) :6593-6599

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