METHOD FOR ENRICHMENT OF IRON ORE STREAMS Russian patent published in 2023 - IPC B03C1/02 B03B7/00 

FIELD: enrichment of iron ore streams.

SUBSTANCE: method for enrichment of iron ore streams includes the steps of: sorting by size the iron ore stream to provide a wet fine fraction with a particle size of less than 3.0 mm in diameter, bringing the wet fine fraction into contact with a magnetic field, and magnetically separating the fine fraction into a concentrate stream and a tailings stream and bringing the tailings stream into contact with the second magnetic field and magnetically separating the tailings stream into a second concentrate stream and a second tailings stream. The iron ore stream is a stream of finely divided iron ore containing 40-62% iron, and the concentrate stream has an iron concentration of at least 55-56% iron, the tailings stream being the untreated tailings stream, and the second magnetic field has a higher magnetic strength index than the magnetic field.

EFFECT: increase of efficiency of the process and the quality of the final product.

20 cl, 19 dwg