Abstract

1. At a given intensity, the magnetic susceptibility of strongly magnetic ores is directly proportional to the maximum susceptibility, proportional to the fourth root of the magnetic field intensity corresponding to the susceptibility maximum, and inversely proportional to the fourth root of the given magnetic field intensity. 2. The proposed procedure for determining the specific force of magnetic attraction (5) of strongly magnetic particles to the separator poles, which takes account of the dependence of the susceptibility on the field intensity, the textural-structural chracteristics of the ore, and the ferromagnetic phase content of the intergrowth can be used to calculate the operating conditions of the separator and of apparatus for dry magnetic beneficiation of crushed strongly magnetic ores.

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