Magnetite is recovered as a by-product of the copper operations. Since operations commenced in 1965, Magnetite has been separately stockpiled onsite.
Magnetite - material safety
The Specifications cover the dense media separation (DMS) magnetite
Current magnetite production is a by-product of the copper operations and as such is recovered from the Concentrator floatation tails stream by magnetic separation. Approximately 15%, by weight, of magnetite is removed by 'cleaning' and 're-cleaning' of the magnetic concentrate from the first stage. This results in the upgrading of magnetite to 62.5% Fe (greater than 90% magnetite). This upgraded magnetite is then subjected to elutriation, to generate the DMS magnetite product.
Dense media separation (DMS) - medium grade
- Particle size distribution: 85% passing -45µm
- Fe3 O4: >90%
- 9% moisture
Iron ore - coarse grade
- Iron (Fe): 65% minimum
- Phosphorus (P): 0.06% maximum
- Sulphur (S): 0.19% maximum
- Silica (SiO2): 1.12% maximum
- Titania (TiO2): 1.0% maximum
- Alumina (Al2O3): 1.01% maximum
Enquiries from potential customers regarding DMS medium grade product should be directed as follows:
South African market:
DMS medium grade magnetite is sold to the South African market.
Palabora has received numerous enquiries on the application of DMS medium grade product from overseas coal washeries.