1. Edith Cowan University School of Engineering, 270 Joondalup Drive Joondalup; WA 6027 Australia
2. CSIRO, Australian Resources Research Centre, 26 Dick Perry Avenue; Kensington WA 6152 Australia
3. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 China
4. National Engineering Laboratory for Coupled-acid and alkaline Production Technology, Institute of Process Engineering, Chinese Academy of Sciences; Beijing 100190 China
5. Monash University Department of Chemical Engineering; VIC 3800 Australia