The role of mechanical activation on atmospheric leaching of a lateritic nickel ore

Huseyin Basturkcu; Neset Acarkan; Eberhard Gock

doi:10.1016/j.minpro.2017.04.001

The role of mechanical activation on atmospheric leaching of a lateritic nickel ore

Huseyin Basturkcu^*, Neset Acarkan, Eberhard Gock

^*Corresponding author for this work

Department of Mineral Processing Engineering

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

The effect of mechanical activation on the atmospheric pressure leaching of a lateritic nickel ore was investigated to develop a superior alternative. Under the influence of mechanical activation, certain physico-chemical changes were observed. Accelerated leaching kinetics and less sulfuric acid consumption were found as the most beneficial effects of mechanical activation. 80.6% Ni and 84.5% Co in leach were obtained with the mechanically activated sample after 2 h of leaching in 30% H₂SO₄ at 85 °C and 1/2.5 solid/liquid ratio (w/w). When non-activated sample was leached under the same conditions, similar metal extractions could be obtained after 8 h of leaching. Finally, a process flow sheet was developed including mechanical activation of the laterite, agitation leaching, iron precipitation step, and nickel-cobalt solvent extraction.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	International Journal of Mineral Processing
Volume	163
DOIs	https://doi.org/10.1016/j.minpro.2017.04.001
Publication status	Published - 10 Jun 2017

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

Keywords

Atmospheric leaching
Laterite
Mechanical activation
Nickel

Access to Document

10.1016/j.minpro.2017.04.001

Cite this

@article{cc2f40b538694edb9c46c332339a8f28,

title = "The role of mechanical activation on atmospheric leaching of a lateritic nickel ore",

abstract = "The effect of mechanical activation on the atmospheric pressure leaching of a lateritic nickel ore was investigated to develop a superior alternative. Under the influence of mechanical activation, certain physico-chemical changes were observed. Accelerated leaching kinetics and less sulfuric acid consumption were found as the most beneficial effects of mechanical activation. 80.6\% Ni and 84.5\% Co in leach were obtained with the mechanically activated sample after 2 h of leaching in 30\% H2SO4 at 85 °C and 1/2.5 solid/liquid ratio (w/w). When non-activated sample was leached under the same conditions, similar metal extractions could be obtained after 8 h of leaching. Finally, a process flow sheet was developed including mechanical activation of the laterite, agitation leaching, iron precipitation step, and nickel-cobalt solvent extraction.",

keywords = "Atmospheric leaching, Laterite, Mechanical activation, Nickel",

author = "Huseyin Basturkcu and Neset Acarkan and Eberhard Gock",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = jun,

day = "10",

doi = "10.1016/j.minpro.2017.04.001",

language = "English",

volume = "163",

pages = "1--8",

journal = "International Journal of Mineral Processing",

issn = "0301-7516",

publisher = "Elsevier",

}

TY - JOUR

T1 - The role of mechanical activation on atmospheric leaching of a lateritic nickel ore

AU - Basturkcu, Huseyin

AU - Acarkan, Neset

AU - Gock, Eberhard

PY - 2017/6/10

Y1 - 2017/6/10

N2 - The effect of mechanical activation on the atmospheric pressure leaching of a lateritic nickel ore was investigated to develop a superior alternative. Under the influence of mechanical activation, certain physico-chemical changes were observed. Accelerated leaching kinetics and less sulfuric acid consumption were found as the most beneficial effects of mechanical activation. 80.6% Ni and 84.5% Co in leach were obtained with the mechanically activated sample after 2 h of leaching in 30% H2SO4 at 85 °C and 1/2.5 solid/liquid ratio (w/w). When non-activated sample was leached under the same conditions, similar metal extractions could be obtained after 8 h of leaching. Finally, a process flow sheet was developed including mechanical activation of the laterite, agitation leaching, iron precipitation step, and nickel-cobalt solvent extraction.

AB - The effect of mechanical activation on the atmospheric pressure leaching of a lateritic nickel ore was investigated to develop a superior alternative. Under the influence of mechanical activation, certain physico-chemical changes were observed. Accelerated leaching kinetics and less sulfuric acid consumption were found as the most beneficial effects of mechanical activation. 80.6% Ni and 84.5% Co in leach were obtained with the mechanically activated sample after 2 h of leaching in 30% H2SO4 at 85 °C and 1/2.5 solid/liquid ratio (w/w). When non-activated sample was leached under the same conditions, similar metal extractions could be obtained after 8 h of leaching. Finally, a process flow sheet was developed including mechanical activation of the laterite, agitation leaching, iron precipitation step, and nickel-cobalt solvent extraction.

KW - Atmospheric leaching

KW - Laterite

KW - Mechanical activation

KW - Nickel

UR - https://www.scopus.com/pages/publications/85017132315

U2 - 10.1016/j.minpro.2017.04.001

DO - 10.1016/j.minpro.2017.04.001

M3 - Article

AN - SCOPUS:85017132315

SN - 0301-7516

VL - 163

SP - 1

EP - 8

JO - International Journal of Mineral Processing

JF - International Journal of Mineral Processing

ER -

The role of mechanical activation on atmospheric leaching of a lateritic nickel ore

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this