METHOD OF PREDICTING PROCESSING PROPERTIES OF MAGNETITE ORES IN MAGNETIC DRESSING Russian patent published in 2021 - IPC G01N27/72 

FIELD: mining.

SUBSTANCE: invention relates to methods of controlling processing properties of magnetite ores. Method of predicting processing properties of magnetite ores in magnetic dressing involves measuring coercive force of sample of magnetite ores using any known method and determining the average size of the magnetite grains, wherein simultaneously with the coercive force, measuring the magnetic field intensity, at which measurement is carried out, saturation magnetization, residual magnetization, tangent of inclination angle of section of curve of hysteresis loop at magnetic field intensity equal to coercive force, bulk density of the sample and determining the process properties of the magnetite ore sample, determining the average size of the inclusions of magnetite grains, in addition to the average size of the inclusions of magnetite grains, using measured characteristics of hysteresis loop, determining mass fraction of iron magnetic in ore, mass fraction of iron common in concentrate.

EFFECT: technical result is rapid determination of processing properties of magnetite ores at the stage of exploration of ore and extraction of ore in pit and formation of ore charge.

1 cl, 2 tbl