Abstract
Process optimization of a chrome ore gravity concentration plant for sustainable development
Highlights
Chromite occurs as chromium spinel, a complex mineral containing magnesium, iron, aluminum, and chromium in varying proportions depending upon the deposit
The key challenges an operator and circuit have to deal with are fine and ultrafine particles arising from the indiscriminate nature of the breakage process in conventional comminution methods and, to some extent, increased mechanization in mining to increase the production rate. Another common problem in many chrome ore beneficiation plants is the presence of fine silicate gangue phases which contaminate the final concentrate
Mineralogical characterization was carried out using QEM*SEM (Quantitative Evaluation of Minerals by Scanning Electron Microscopy) on the samples to analyse the distribution of liberated silica and locked silica along with other minerals
Summary
Chromite occurs as chromium spinel, a complex mineral containing magnesium, iron, aluminum, and chromium in varying proportions depending upon the deposit. Accurate data collection and interpretation, followed by making an implementable change in an operating plant, plays a critical role in the performance of the circuit.
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