METHOD FOR REMOVING PHOSPHORUS FROM MANGANESE RAW MATERIAL Russian patent published in 2012 - IPC C22B7/00 

FIELD: metallurgy.

SUBSTANCE: manganese raw material is subject to washing and screening on mesh with size of 0.25 mm. Fraction with size of -0.25 mm is transported to dump, and fraction with size of +0.25 mm is crushed to the size of 0.074 mm, subject to magnetic separation at intensity of magnetic field of 7000-9000 oersted with further drying of concentrate with hot gases; at that, it is influenced with ultrasound with frequency of 18-21 kilohertz with simultaneous loosening of concentrate.

EFFECT: optimisation of raw material fineness; excluding expensive and difficult-to-obtain reagents from the technology; optimisation of magnetic benefication and drying of the concentrate.

1 dwg, 2 tbl, 1 ex