Optimization of Multi-gravity Separator (MGS) Parameters for Specularite Ore Beneficiation: Evaluating Box–Behnken and Central Composite Designs
Çağrı ÇERİK, Sezai ŞEN
TL;DR
This study compares two statistical methods to optimize a machine that separates iron-rich ore, finding effective settings to improve iron quality and recovery.
Contribution
The first comparative assessment of Box–Behnken and Central Composite Designs for optimizing specularite ore beneficiation using a multi-gravity separator.
Findings
Optimized MGS parameters achieved 63.97% Fe grade and 72.05% recovery.
Central Composite Design showed better predictive performance than Box–Behnken Design.
Optimal conditions included 143 rpm drum speed, 6.2 L/min wash water, and 4.5° drum slope.
Abstract
This study investigates the optimization of multigravity separator (MGS) parameters for the beneficiation of specularite ore, using both Box–Behnken design (BBD) and central composite design (CCD) as response surface methodologies. The effects of the drum speed, wash water amount, and drum slope on the grade and recovery of specularite were evaluated. Results indicated that increased wash water and drum slope generally enhanced the Fe grade, while higher drum speeds had adverse effects. Conversely, recovery was maximized with lower wash water amounts, lower drum slopes, and higher drum speeds. The comparison between BBD and CCD designs revealed that both methods provided similar optimal grade and recovery values, though with different parameter settings. CCD demonstrated superior predictive performance with higher F-values and closer agreement between adjusted and predicted R 2.…
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Taxonomy
TopicsMineral Processing and Grinding · Minerals Flotation and Separation Techniques · Iron and Steelmaking Processes