Investigation of dephosphorization of brown iron ore concentrates by sintering and magnetic beneficiation

• Dephosphorization of brown iron concentrates by sintering and magnetic separation.
• Sinter roasting transfers phosphorus from ore phases to slag-forming ones.
• The composition of iron-silicate phases was determined depending on the basicity.
• A phosphorus-containing glass phase fills intergranular space of magnetite.

The results of investigation of sintering and magnetic beneficiation of brown iron ore concentrate are presented. The investigations are based on using a possibility of redistribution of phosphorus from the ore constituents into slag-forming ones in the process of sinter roasting.