Refining of a low-grade molybdenite concentrate

Kumar, Manoj and Mankhand, T R and Murthy, D S R and Mukhopadhyay, R and Prasad, P M (2007) Refining of a low-grade molybdenite concentrate. Hydrometallurgy, 86 (1-2). pp. 56-62.

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This study aims to refine an indigenous off-grade molybdenite [41.5% Mo] to one of high-grade MoS2 for industrial applications. Investigations were carried out on the removal of the oxide/silicate gangue and the base metal sulphide associations by their selective dissolution in two acids, namely, HCl or HF deployed singly, sequentially or in the mixed mode. Under optimum conditions practically all the oxide and silicate gangue and 90% of the metallic impurities were removed. Starting from the low-grade molybdenite concentrate a refined molybdenite (97.8% MoS2) was made whose composition compares well with that of a technical-grade MoS2 of the Climax Molybdenum Company.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Molybdenite concentrate; HF/HCl leach; Upgrade; Oxide/silicate leach; Refined molybdenum disulphide
Divisions:Metal Extraction and Forming
ID Code:162
Deposited On:19 Oct 2009 15:30
Last Modified:03 Jan 2012 12:34
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