Journal ArticleDOI
Understanding the discrepancy between prediction and plant GRG recovery for improving the gold gravity performance
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In this paper, a comparison of GRG recovery in laboratory with its actual recovery in plants shows that plants recover between one-third and two-thirds of the predicted GRG from laboratory test results.About:
This article is published in Minerals Engineering.The article was published on 2011-05-01. It has received 11 citations till now.read more
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An investigation on laboratory Knelson Concentrator separation performance: Part 1: Retained mass modelling
Ali Ghaffari,A. Farzanegan +1 more
TL;DR: In this paper, the retained mass of material in the Knelson Concentrator (KC) bowl was estimated by the fluidization water pressure (P w ) multiplied by the projected area ( A p ) of a spherical particle hydraulically equivalent to the solid particle.
Journal ArticleDOI
Mineralogy and Pretreatment of a Refractory Gold Deposit in Zambia
TL;DR: In this paper, a gold deposit located in North-Western province of Zambia was carried out by using X-ray fluorescence spectroscopy (XRF), Xray diffraction spectrography (XRD), and scanning electron microscope (SEM).
Journal ArticleDOI
Research and application of a Knelson concentrator: A review
TL;DR: In this article, the development history and types of the Knelson concentrator are reviewed and discussed, including the separation characteristics, influencing factors, modification equipment, gravity recoverable gold (GRG) tests, mathematical models, and computer simulations.
Journal ArticleDOI
A comparison of 2D and 3D shape characterisations of free gold particles in gravity and flash flotation concentrates
TL;DR: In this paper, the authors employed automated mineralogical analysis (AMA) to quantify the free gold particles' circularity and sphericity measurements using two and three dimensional (2D/3D) methods.
Journal ArticleDOI
Effects of sample mass on gravity recoverable gold test results in low-grade ores
TL;DR: In this paper, a case study of low-grade coarse gold-dominated mineralisation is presented that demonstrates the high variability of test results using different sample masses and demonstrates that the small (≤50 kg) test samples grossly understate plant gravity recoverable gold and display poor precision.
References
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Technical note nominal diameters of gold particles
D.E. Walsh,E.G. Kelly +1 more
TL;DR: In this article, the relationship between a number of nominal diameters have been derived from terminal velocity data on gold particles for flaky gold particles, which can vary by factors of over 10.
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An investigation on laboratory Knelson Concentrator separation performance: Part 1: Retained mass modelling
Ali Ghaffari,A. Farzanegan +1 more