FIELD: mining.
SUBSTANCE: method for obtaining powder-like active carbon consists in action on brown coal with size grade of less than 0.2 mm with humidity of 9 to 32%, electromagnetic microwave radiation at frequency of 2450 MHz, power of 1500 W during 17.5-22.5 minutes with coal heating to 256-340°C.
EFFECT: invention allows obtaining active carbon without applying the water vapour activation stage.
1 dwg, 1 tbl, 2 ex
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