Janelle Zhiyun Khoo, Nawshad Haque
This paper presents a life cycle assessment (LCA) study of three nickel laterite processing technologies. The main goal was to quantify selected environmental impact categories and to compare and analyse each impact category for three different nickel feedstock for stainless steel production. The nickel laterite processing routes were (1) high pressure acid leaching (HPAL), (2) ferronickel, and (3) the newly developed Direct Nickel (DNi Process) that involves atmospheric leaching of nickel laterite using nitric acid. A cradle to gate approach was adopted. A functional unit of one tonne stainless steel was chosen. The scope covered was from laterite ore mining to final metal production. All inventory data was expressed in units per tonne nickel-based feedstock. The flow sheets for each technology were developed and the DNi Process is also capable of processing different types of laterite ores (from limonitic to saprolitic ores), which is an important feature for future nickel production.
@article{115587ec-3fc6-4e85-9cfc-6d8fe64a6321,
title={A life cycle assessment of a new laterit},
author={Janelle Zhiyun Khoo and Nawshad Haque},
year={2026},
language={en}
}TY - JOUR TI - A life cycle assessment of a new laterit AU - Janelle Zhiyun Khoo AU - Nawshad Haque PY - 2026 LA - en ER -
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