METHOD FOR PRODUCING CRUSHED ACTIVATED CARBON FROM COAL RAW MATERIALS Russian patent published in 2022 - IPC C01B32/312 B01J20/20 C02F1/28 C02F101/30 

FIELD: adsorbents manufacture.

SUBSTANCE: invention can be used in the manufacture of adsorbents from coal raw materials. The method for producing crushed active coal includes crushing coal raw materials, carbonization at a temperature rise rate of 5-15°C/min, and activation with water vapor at a temperature of 850-900°C. The raw material used is coal with a volatile matter yield of 40-50 wt.%. Carbonization is carried out at 700-800°C with isothermal exposure at a final temperature of 30-90 minutes. Activation is carried out at a flow rate of 8-10 kg of water vapor per 1 kg of activated carbon.

EFFECT: invention makes it possible to increase the adsorption activity of the resulting activated carbon when extracting ethylbenzene from water.

1 cl, 3 ex