Studies concerning nickel electrowinning from acidic and alkaline electrolytes

被引：42

作者：

Lupi, C. ^{[1
]}

Pasquali, M. ^{[1
]}

Dell'Era, A. ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dept ICMMPM, I-00184 Rome, Italy

来源：

MINERALS ENGINEERING | 2006年 / 19卷 / 12期

关键词：

Ni electrowinning; hydrometallurgy; waste processing;

D O I：

10.1016/j.mineng.2006.04.002

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

High-purity nickel is mainly produced by electrowinning from sulphate and chloride solutions in the presence of high concentrations of boric acid as a buffer. The generally used pH is in the range 3-4 if Ni concentration in the electrolyte is higher than 10 g/l. Lower Ni concentration, as in the case of either industrial liquid effluents and in situ low grade Ni ore leaching, needs pH values ranging from 10 to 11 in order to hinder the evolution of hydrogen. Ni electrowinning from acidic and alkaline solutions is studied to determine in both cases the best operative conditions. Particularly Ni concentration, additive presence, pH values, temperatures, cathode material, current density and voltage, to be used in the case of low Ni concentration, have been considered to obtain low energy requirements together with pure nickel having a good morphology. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1246 / 1250

页数：5

共 10 条

[1] The effects of chloride ions on the electrowinning of nickel from sulfate electrolytes [J].

Alfantazi, AM ;

Shakshouki, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (10) :C506-C510

[2]

[Anonymous], 1994, ULLMANNS ENCY IND CH, VA17, P189

[3] MAGNETIC-FIELD EFFECTS ON THE ELECTRODEPOSITION OF NICKEL FROM A HIGH PH WATT BATH [J].

CHIBA, A ;

KITAMURA, K ;

OGAWA, T .

SURFACE & COATINGS TECHNOLOGY, 1986, 27 (01) :83-88

[4] Electrolyte parameter effects in the electrowinning of nickel from sulfate electrolytes [J].

Holm, M ;

O'Keefe, TJ .

MINERALS ENGINEERING, 2000, 13 (02) :193-204

[5]

JACKSON E, 1986, HYDROMETALLURGICAL E, P221

[6]

JI J, 1995, J APPL ELECTROCHEM, V25, P642

[7] Electrolytic nickel recovery from lithium-ion batteries [J].

Lupi, C ;

Pasquali, M .

MINERALS ENGINEERING, 2003, 16 (06) :537-542

[8]

MACKINNON DJ, 1982, C P MET SOC AIME HYD, P659

[9] Effects of boric acid on the electrodeposition of iron, nickel and iron-nickel [J].

Yin, KM ;

Lin, BT .

SURFACE & COATINGS TECHNOLOGY, 1996, 78 (1-3) :205-210

[10]

ZHOU Z, 1997, HYDROMETALLURGY REFI, V1, P169

← 1 →