PROJECTS
Audit of the increase in % insoluble in copper concentrate
- PMC conducted a study to find the causes of the increase in insoluble. Different types of silicates that contaminate the copper concentrate were identified, decreasing the final product’s grade and increasing the concentrate’s humidity.
- Through analysis of statistical information from the mine and plant, PMC determined that it is a multifactorial problem in which, in certain situations, the production plan overlaps, altering the stable operation of the flotation plant.
The determining factors are:
- Increase in minerals with clay behaviour, such as micas, which are hydrophobic with a tendency to float, which occur in certain phases of the mine.
- Cleaning flotation plant outside its optimal point due to lack of washing or instability of flotation columns.
- External factors such as using surfactant reagents as dust control in mines and plants promote the flotation of silicates.
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