Abstract
Optimization of the Rössing countercurrent decantation circuit for high-calc ore
Highlights
Rössing Uranium Limited (RUL) operates one of the largest open pit uranium mining and leaching operations in the world
This paper focuses on the modifications to the countercurrent decantation (CCD) circuit
The feed is diluted by overflow from the preceding CCD stage via another launder situated above the slurry launder
Summary
Rössing Uranium Limited (RUL) operates one of the largest open pit uranium mining and leaching operations in the world. Optimization of the Rössing countercurrent decantation circuit for high-calc ore Process control (Figure 3) is a fairly manual style of operation, where operators take hourly samples of the thickener underflow for density and thickener overflow for clarity, using a clarity wedge.
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