The Solvent Extraction Dynamic Isotherm Model makes use of the process inputs and derived outputs from the SX Entrainment Alert Model, in conjunction with Input Stream chemical composition aspects and mass balance aspects, to derive outputs and predictions to assess the extent (percentage of Max Load) to which the organic extractant is performing. This is achieved by comparing the real-time plant data and applying this data to the dynamic equilibrium isotherm to assess the extent of optimized copper mass transfer performance at any given time.
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The product is therefore a simulation dynamic model that can be used to demonstrate the impact of solvent extraction organic and aqueous flow ratios for changes in incoming PLS copper and free acid (pH). The simulation models demonstrate the importance of organic/aqueous flow ratios for lower and higher copper feeds and the opportunity to optimize these ratios in copper mass transfer.