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Improving copper recovery

The conversion of a concentrator from one grinding media type to another is a major undertaking in terms of both financial and technical risk.
This paper tracks the changes in pulp chemistry and metallurgical performance of Xstrata Copper’s Ernest Henry copper/gold concentrator as the ball mill was converted from forged steel to high chrome grinding media.

by C. Greet, J. Kinal, J. Twomey and MM. Peaty

Improving copper recovery at Xstrata Copper’s Ernest Henry concentrator by changing the grinding chemistry.