Tantalum Mining Corporation's gravity concentrator - recent developments

CIM Bulletin, Vol. 72, No. 809, 1979

R. O. BURT Mill Superintendent, Tantalum Mining Corporation of Canada Limited Bernic Lake, Manitoba

The original flowsheet of the TANCO mill consisted of a simple two-stage gravity circuit for the recovery of the tantalum concentrates. With decreasing grade and grain size of the tantalum minerals, considerable modifications to the circuit have been required.This paper discusses the various recent improvements carried out on all stages of the flowsheet, which have resulted in a 10% increase in recovery. Future improvements, including on-stream analysis, and the possibility, of tantalum flotation, are also discussed.
Keywords: Tantalum Mining Corporation, Gravity concentrators, Bernic Lake pegmatite, Grinding, Spiral circuits, Sand concentration, Slimes concentration, Screening, Tabling, Flotation, On-stream analysis.