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Optimization on molybdenite flotation

Durga, S and Nayak, UB (1987) Optimization on molybdenite flotation. In: Transactions of Indian Institute of Metals, 40 (5). pp. 395-406.

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Concn. of low-grade molybdenite ore was carried out by bulk flotation of Cu and Mo sulfides after ascertaining the theor. liberation particle size at 100 mesh. Statistically designed expts. were carried out using variables of (1) K Et xanthate collector concn. (2) lime concn. for depressing pyrite flotation (3) 2 pH levels. The effects and possible interactions were studied. A composite design of the orthogonal type was adopted, and regression equations were developed for recovery of chalcopyrite and molybdenite, and selectivity index. Response contours were plotted as 2-dimensional representations, and the effect of 2 parameters on the responses depicted at a time for a fixed value of the 3rd variable was detd. The path of steepest ascent was used to optimize response of the selectivity index. The best index of 31.02 was obtained at 0.09 kg K Et xanthate/ton, 0.6732 kg lime/ton, and pH 8.86.

Item Type: Journal Article
Publication: Transactions of Indian Institute of Metals
Publisher: The Indian Institute of Metals
Additional Information: Copyright of this article belongs to The Indian Institute of Metals.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 27 Feb 2008
Last Modified: 21 Oct 2010 06:26
URI: http://eprints.iisc.ac.in/id/eprint/13103

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