Daye type of iron ore, is contacted account - hydrothermal iron ore deposits, ore is a copper-containing magnetite. The iron-bearing minerals in the primary ore of the deposit are mainly magnetite. The copper minerals are mainly chalcopyrite, sulfur and cobalt , and have industrial value. Gangue minerals as quartz, chlorite, sericite, kaolin, calcite, dolomite, hornblende, and the like. It showed a dense gangue-like configuration, the magnetite fine particles and micro-fine composition between particles are non-metallic minerals are filled, and the size of the chalcopyrite particle aggregates between 0.2 ~ 0.001mm.
The selection of this type of ore uses the floating-magnetic combined process shown in the figure below. The production practice shows that the process can not only ensure the quality and recovery of copper concentrate and iron concentrate, but also achieve comprehensive recovery of sulfur and cobalt. the goal of. When the ore grade is: 45.75% Fe, 0.492% Cu, 2.12% S, 0.021% Co, an iron concentrate with a grade of 58.1% Fe and a recovery rate of 89.81% Fe can be obtained with a grade of 18.37% Cu and a recovery rate of 64.56%. Copper concentrate of Cu, sulfur-cobalt concentrate with a grade of 33.25% S and 0.24% Co and a recovery rate of 26.80% Co.
In order to recover the siderite in the weak magnetic separation tailings, the mine has added a wet strong magnetic separator to obtain a strong magnetic concentrate with a grade of 43% Fe, thereby increasing the recovery rate of iron.
Copper-containing magnet ore sorting process
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