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Featured R&D 100 Award Winner: FLSmidth ROL Process

By R&D Magazine | March 29, 2017

The upper layers of copper ore deposits are easily processed using hydrometallurgical leach technology, in tandem with solvent extraction and electrowinning to produce high-purity copper metal (i.e., 99.99+ percent) for use in a wide variety of electrical & electronics applications.  The most abundant copper mineral, however, is chalcopyrite (CuFeS2)—a refractory semi-conductor mineral that is found deeper in the mine.  Consequently, hydrometallurgical copper producers struggle to maintain metal production during the later stages of mine development.  While existing hydrometallurgical processes are able to recover up to 95 percent of copper from certain refractory minerals, these processes are complicated, energy intensive and slow. 

The FLSmidth ROL Process technology, which won a 2016 R&D 100 award, enables the leaching of 97 to 99 percent of copper from mineral concentrates containing as little as 5 percent copper in less than six hours; a faster and much more simple process that saves energy and significantly improves sustainability of existing mines.  The process technology enables current producers to remain productive, thereby extending natural resources, jobs and utilization of existing processing infrastructure.  In addition to primary metal production, the process technology more efficiently recovers metals from waste recycle streams.

Each year for more than 50 years, R&D Magazine has honored the 100 best innovations in research and development. We are currently accepting applications for the 2017 R&D 100 Awards. Innovators with an exceptional product developed between January 1, 2016 and March 31, 2017 should apply. Submissions close April 14, 2017

For information on the 55th Annual R&D 100 Awards and to enter visit http://www.rd100conference.com

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