New Tool for Hydrometallurgical Plant Solution Chemistry Modelling: Case Study on METSIM® Integration with OLI Equilibrium Module

Abstract

Mass and energy balances are a fundamental aspect of hydrometallurgical process engineering. From a chemistry perspective, it is imperative to include all applicable chemical components, reaction equations, and reactions extents, since the thermodynamic outputs from the mass and energy balances define the steady-state mass flows, temperatures, pressures, and phase compositions used for process and equipment design.

The implementation, application and lessons learned from using this feature provide insight into its usefulness, limitations, and recommended best practices for others looking to utilize this software tool. A case study is also examined in detail whereby the OLI Equilibrium Module in METSIM® was applied to corroborate test work results, inform reagent addition rates (specifically lime for neutralization), and more accurately simulate solution chemistry to optimize water distribution.