PDF

Thermodynamics of the Reduction Roasting of Nickeliferous Laterite Ores

R. Elliott, C. A. Pickles

2016ennickelthermodynamicsreductionlateritemineralogy

Abstract

Language:

The global nickel sulphide resources are becoming more difficult to mine and, as a result, there is increasing interest in the current and future development of the oxidic nickel laterite deposits. In comparison to the sulphide ores, the nickel laterites cannot be readily upgraded by conventional means, and growing attention is being focused on the development of new methods for processing these ores. In this paper, firstly, brief overviews of laterite ore mineralogy and the conventional techniques used to extract the nickel from both the limonitic and the saprolitic nickeliferous laterites are provided. Secondly, previous research on the thermodynamic modelling of the reduction of the laterites is discussed. Thirdly, an improved thermodynamic model is used to predict the equilibrium products arising from the solid state reduction of both the limonitic and the saprolitic ores. Based on these thermodynamic predictions, the reduction behaviors of the two ore types are compared in terms of nickel recovery and grade in the ferronickel product. The effects of reduction temperature, ore composition and carbon additions were studied. Finally, the results from the simulations are compared to the experimental data available in the literature.

Download

Cite This Work

@article{dfdc9f51-a14d-45ed-8dc0-76c76a822ab8,
  title={Thermodynamics of the Reduction Roasting of Nickeliferous Laterite Ores},
  author={R. Elliott and C. A. Pickles},
  year={2016},
  language={en}
}
TY  - JOUR
TI  - Thermodynamics of the Reduction Roasting of Nickeliferous Laterite Ores
AU  - R. Elliott
AU  - C. A. Pickles
PY  - 2016
LA  - en
ER  -

Similar Items

Proceedings of the Metallurgical Society of the Canadian Tumilty, J.A. ( WeLib.org )

2026enPDF

Extractive Metallurgy 1 Basic Thermodynamics and Kinetics Alain Vignes(auth.) ( WeLib.org )

Alain Vignes

This book provides a comprehensive overview of the fundamental principles of extractive metallurgy, with a specific focus on basic thermodynamics and

2026enPDF

Chemical metallurgy principles and practice Chiranjib Kumar Gupta ( WeLib.org )

Chiranjib Kumar Gupta

This book provides a comprehensive overview of the field of chemical metallurgy, addressing both common and less common metals. The objective of the v

2026enPDF

An Introduction to Chemical Metallurgy International Series R. H. Parker and D. W. Hopkins (Auth.) ( WeLib.org )

2026enPDF

Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt

Pratima Meshram, Uday Prakash

An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich conve

2020enPDF

Plant auditing: a powerful tool for improving metallurgical plant performance

Deepak Malhotra

This work discusses the essential components of a rigorous auditing process aimed at enhancing metallurgical plant performance. The objective is to id

2015enPDF