Crystallisation and Precipitation Unit
Precipitation processes are currently primarily empirically based, and a key aim of the Crystallization and Precipitation Unit is to improve the scientific understanding of these processes for scale-up, optimisation and control.
The focus is on research mainly connected to the mineral processing industry. Specific projects involve PGM, nickel, copper, cobalt, iron, magnesium and calcium salts. Aqueous chemistry modelling of speciation, thermodynamic equilibria and computation of Pourbaix diagrams support all projects. Hydrodynamic and population balance modelling of precipitation systems are also a strong focus.
- Particle characteristics: the emphasis is on improving the properties of crystals produced in industrial processes.
- Process characteristics: the emphasis is on using precipitation as a process to purify process electrolytes as well as mining effluents.
- Modelling: the emphasis is on using modelling and simulation to improve understanding and prediction of precipitation processes.