Steady-state optimisation of the leaching process at Kwinana Nickel refinery

Woodward, T.M. and Bahri, P.A. (2007) Steady-state optimisation of the leaching process at Kwinana Nickel refinery. Computer Aided Chemical Engineering, 24 . pp. 557-562.

Abstract

A comprehensive optimisation and simulation model has been built for analysis of the Sherritt-Gordon ammoniacal pressure leaching process at Kwinana Nickel Refinery. Challenges in operating the process stem from the complex arrangement of leaching autoclaves and flows, as well as the leach chemistry. The model offers a means for considerable insight into the nature of operation of the process. The optimisation problem formulation is addressed, detailing the chief elements of construction. Optimisation results are presented for the refinery's present operational scenario, and conclusions are drawn on the state of the new, optimally operated process.