This type of ore, the magnet is mainly useful for mineral ore containing small amounts of hematite; gangue minerals quartz, with small amounts of hornblende, chlorite, calcite, mica, apatite and epidote. The ore is a band-like structure composed of an interbedded layer of iron mineral layer and gangue layer. The thickness of the iron ore strip is 0.5~08mm on average, and the thickness of the non-ferrous ore strip is 0.2~0.4mm on average. The iron mineral is finely embedded, and the inlaid grain size is about 0.1 mm. The process is shown in the figure. According to the process, the beneficiation index achieved is: when the ore grade is 30% Fe, the concentrate grade reaches 68% and the recovery rate is about 82% Fe.
Anshan type lean magnet ore magnetic separation process
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