Abstract
A novel methodology for estimating gold recoveries in gravity-separation circuits is presented. The methodology makes use of a population-balance model. The model represents gold liberation, breakage and classification behavior and applies preconcentration and recovery-performance curves to gravity-recoverable gold. The derivation of the necessary parameters is explained and demonstrated using data from an actual gravity circuit and from a projected application.
The methodology makes it possible to estimate the performance of a gravity circuit having a large gold circulating load and a relatively-low unit recovery (e.g., a jig) or having a high recovery on a bleed of the circulating load (e.g., a Knelson Concentrator).
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SME Preprint 94–158, SME Annual Meeting, Feb. 14–17, 1994, Albuquerque, NM.
M&MP Paper 94–630. Discussion of this peer-reviewed and approved paper is invited and must be submitted, in duplicate, prior to August 31, 1995.
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Laplante, A.R., Woodcock, F. & Noaparast, M. Predicting gravity separation gold recoveries. Mining, Metallurgy & Exploration 12, 74–79 (1995). https://doi.org/10.1007/BF03403081
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DOI: https://doi.org/10.1007/BF03403081