MMS has supplied its partner – Ingenieria de Minerales (IDM) with and advanced three-stage Imhoflot G-Cell pilot plant to undertake detailed on-site testwork at the Vazantes zinc mine operated by Votorantim Metals in Brazil. The three 1.8m diameter G-Cells have a nominal throughput of 100m3/hr each and the cells will be run in series. Votorantim is South America’s biggest producer of zinc metal. The zinc ore at Vazantes is Willemite, a zinc silicate. The pilot plant will used to test different plant steams with the aim of improving the grade and recovery of zinc.