Application of Full Factorial Experimental Design and Response Surface Methodology for Chromite Beneficiation by Knelson Concentrator

摘要

The present work is undertaken to determine the effect of operational variables, namely: feed rate, centrifugal force and fluidization water flow rate on the efficiency of Knelson concentrator for chromite ore beneficiation. A full factorial design with three factors at three levels and response surface methodology (RSM) were applied for this purpose. The quadratic models were developed to predict the concentrate Cr 2 O 3 grade and recovery as the process responses. The results suggest that all the variables affect the grade and recovery of the Cr 2 O 3 concentrate to some degree. However, the fluidization water rate was found as the most effective parameter.