Authors: D. Warnica, A. Cole, S. Bunk
SME Conference, Vancouver, Canada, Society for Mining, Metallurgy and Petroleum
Abstract
Two fluid-bed roasters were constructed in 1999 to pretreat carbonaceous refractory ores at Barrick Goldstrike Mines. These are the largest gold-ore roasters in the world, which use almost pure oxygen to remove contained organic carbon and sulfide sulfur prior to a conventional carbonin- leach process for gold extraction. This article describes the overall roasting process and design features that enable these roasters to exceed their design objectives.
