A contribution to the problems of utilizing coal combustion wastes from the EVO Vojany power station

In the contribution the procedures mineral processing technologies are presented. By their application, individual valuable components are of gained from the solid waste of black coal-fired in a power station. The flotation product of unburned coal rests is characterized by 85 - 86 % loss ignition. The magnetic product (usually is it a new mineral formation of magnetite) includes 47 - 49 % Fe. The fly ash which is free of the unburned coal rests and magnetite iron includes only 1.02 - 1.34 % loss ignition and 5.38 - 4.71 % Fe. The products from the can be usable in several industrial areas (building industry, metallurgy, etc). (authors)