FIELD: solid fuels. SUBSTANCE: multi-purpose fuel briquette is composed of, wt %: charcoal waste 70-80, wood flour 1-5, lignosulfonate 10- 15, and watery 1:1 lime-clay mixture 20-80. Briquettes burn without smoke and remaining ashes (no more than 0.25%) are briquette-shaped. Burning does not release injurious substances and unpleasant smells. EFFECT: improved consumer's properties. 2 tbl
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