High-quality magnetite–hematite concentrate production by spiral separation

Abstract

The longstanding and fruitful activities of Stoilensky GOK build upon persistent improvement and advance of production. An emphasis is laid on enhanced operating efficiency at minimized environmental impact. Production of high-quality magnetite–hematite concentrate by spiral separation at primary stages of processing can enable generally higher quality of the finished concentrate. For another thing, removal of dissociated magnetite and hematite from primary middlings eliminates over-sludging of the minerals and, accordingly, reduces iron loss with slime. The research and field trials provided assessment of feasibility of high-quality magnetite–hematite concentrate production by spiral separation at the primary stages of processing in the conditions of concentrating plant at Stoilensky GOK.The authors appreciate participation of S. A. Napolskikh, CEO and Head of Ore Division at Stoilensky GOK, in these studies.