Influence of open circuit regrind milling on UG-2 ore composition and mineralogy at Impala's UG-2 concentrator

This paper attempts to explain the recovery increase achieved by examining and comparing metallurgical as well as mineralogical changes in mill product from before and after the open circuit conversion. Other initiatives implemented during the structured optimisation project have already been published by Martin2 et al. [Martin, C.J., Nel, E., Raabe, H., 2004. PGM ore processing at Impala's UG-2 concentrator in Rustenburg, South Africa. In: Proceedings of 36th Annual Canadian Mineral Processors Conference, Ottawa] and will thus not be discussed any further.