Abstract
This research study examined the physical enrichment processes of coal fly ash (CFA) from the 2nd thermal power plant in Almaty. Magnetic separator and flotation enrichment methods were used to separate the magnetite and carbon parts of coal fly ash, respectively. In the study, a laboratory magnetic separator separated hematite content from 4.49 to 5.57% by mass from ash residues of different fractions. Cheap and available kerosene and flotol-b were used as flotation reagents for flotation enrichment. The particle size of coal ash is 63-100 μm, and the amount of carbon concentrate is ~16.3% by weight. The remaining mineral of coal ash is an essential raw material for building materials.
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