FIELD: construction.
SUBSTANCE: method of iron oxide pigment obtainment involves separation of fraction up to 10 mm size from metallurgical gas treatment slime of fine-dispersed dust, fraction dehydration by drying, and further reduction. Separated fraction is reduced to 1-10 mcm grain size. Afterwards, particles exceeding 10 mcm are separated by vibration screen and returned for additional reduction.
EFFECT: possible utilisation of metallurgical waste of gas treatment, with obtainment of iron oxide pigments suitable for dying of construction materials, such as silicate brick, ceramic tile.
2 cl, 1 dwg, 4 ex
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