A comparative study among several chelating resins for purification of a heap leaching effluent from a nickel laterite ore has been finished. Chelating resins with iminodiacetate (IDA) and bis-picolylamine (Bis-PA) functional groups, from different suppliers, have been evaluated for their selectivity and loading capacities for nickel and cobalt over impurities._x000D_
The two evaluated IDA resins, Amberlite IRC 748 and Monoplus TP 207, showed very similar results for both loading capacity and selectivity. Better performance was obtained at 7 BV/h at a pH of 4. Evaluation of Bis-PA resin showed that XUS 43578 has better performance than TP 220, with a 30 per cent higher loading capacity and superior selectivity for nickel over impurities._x000D_
CITATION:Berni, T, Mendes, F and Pereira, A, 2010. Purification of nickel and cobalt from heap leaching effluents using ion exchange resins, in Proceedings XXV International Mineral Processing Congress (IMPC) 2010, pp 273-284 (The Australasian Institute of Mining and Metallurgy: Melbourne).