Case study

Cómo ayudamos a una mina de cobre a asegurar más del doble de su presupuesto anual de cuerpos moledores en términos de ingresos adicionales

Minería de cobre - Recuperación garantizada

Nuestro cliente estaba examinando formas de reducir sus costos operativos y se acercó a Magotteaux para determinar si se podía usar una bola de cromo secundaria en su molino de bolas para  reducir los costos de los cuerpos moledores.
1
Client request

Investigate the effect of alloy optimization on recovery of copper

 

2
Proposal

A proposal to reduce the chrome content of the grinding media was presented and agreed upon. The expected cost saving was of $200,000 per annum. The client indicated that, should the plant suffer a loss in copper recovery, they would revert to the initial chrome content of the grinding media.

3
Monitoring

The pulp chemistry was monitored continuously during the purge using PCM®

 

The pulp chemical data collected was examined on a fortnightly basis to determine if there were changes in the chemistry, and if these changes in chemistry had an adverse effect on the copper recovery. 

The analysis clearly showed that the copper recovery had decreased by at least 1.3 % with the change of the grinding media. This represented a gross loss in revenue of $9.0 million USD per annum.

4
Result

Magotteaux solution : define alloy to stabilize recoveries

These conclusion were presented to our customer and the site immediately requested Magotteaux to supply the original grinding media with the higher chromium content.

 

 

Copper mining - Secured recovery
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