H. Purwanto, T. Shimada
The utilization of laterite ore as a nickel resource is constrained by its high iron content, which often leads to its rejection for nickel extraction. This study investigates the potential of laterite ore with significant iron content as an alternative iron resource by proposing a processing technique that combines selective reduction, leaching, and magnetic separation to extract valuable metals while minimizing impurities. The methodology involves the selective reduction of laterite ore using a CO/CO2 mixed gas, facilitating the production of metallic nickel and cobalt and the conversion of hematite to magnetite. The leaching process thereafter isolates nickel from the selectively reduced ore, allowing for the recovery of iron in the form of magnetite. The results demonstrate that the residual material post-nickel extraction can be effectively treated by magnetic separation to yield a high iron content magnetic concentrate suitable for use as raw material in iron production. This process addresses the challenges posed by impurities in laterite ore and outlines a feasible approach for enhancing the economic viability of laterite ores in ironmaking applications.
@article{ac57a0f7-20b7-4a8c-a5cb-e411ed62f6d1,
title={Magnetic separation for processing iron from laterite ore},
author={H. Purwanto and T. Shimada},
year={2003},
language={en}
}TY - JOUR TI - Magnetic separation for processing iron from laterite ore AU - H. Purwanto AU - T. Shimada PY - 2003 LA - en ER -
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