FUEL BRIQUETTE AND METHOD OF MOULDING SAID BRIQUETTE Russian patent published in 2012 - IPC C10L5/10 

FIELD: chemistry.

SUBSTANCE: invention relates to the coal-tar industry, production of an optimum composition and method of moulding briquettes from fine particles of coal and coke, which can be used in commodity form as combustible material. The fuel briquette consists of fine carbon-containing particles with polymer binder. The binder used is aqueous solution of polyvinyl alcohol and the briquette additionally contains mineral oil, with the following ratio of components, wt %: polyvinyl alcohol - 5-10; coke or coal particles - 30-70; mineral oil - 3-7; water - the balance. The method of moulding a solid fuel briquette involves saturating fine coke or coal particles with spent oil products. Said products are added to the aqueous solution of polyvinyl alcohol and stirred. The mixture is frozen at -20°C for 20 hours and then thawed at room temperature and dried to constant weight.

EFFECT: efficient recycling of wastes from a coke-chemical plant and spent oil products.

2 cl, 8 ex, 1 tbl