Engineering & Mining Journal

MAY 2017

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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Page 59 of 59

Rapid Oxidative Leach process Award-winning The FLSmidth ROL Process technology, which won a 2016 R&D 100 award, is considered by many as a revolutionary technology. It enables the leaching of 97 to 99% of copper from mineral concentrates containing as little as 5% copper in less than six hours - a faster and much simpler process that signifi cantly improves the sustainability of existing mines. The ROL process targets diffi cult-to-process copper concentrates, such as primary sulphides and concentrates containing high levels of arsenic. ROL enables the industry to dissolve copper from low- to mid- grade concentrates at 80°C. This makes it possible to leach directly at the mine, safely extracting the copper and maximizing the use of existing capacity during the transition from oxide ore to sulphide ore concentrates. What can ROL do for you? Find out more at www.fl

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