COMPOSITION FOR BRIQUETTED FUEL Russian patent published in 1999 - IPC

FIELD: utilization of hydrocarbon sludges such as black oil, spent oils and deposits thereof, and dispersed hydrocarbon waste such as peat and coal crumb, wood meal, and saw dust. SUBSTANCE: composition comprises hydrocarbon sludge, dispersed carbon material, organic filler, dispersed alumosilicate and water, ratio of components is as follows, wt.%: hydrocarbon sludge, 40.0-50.0; dispersed carbon such as coal dust and coal crumb, 1.0-5.0; organic filler, 10.0- 30.0; lime, 1.0-10.0; dispersed alumosilicate, 5.0-15.0; and water, the balance. EFFECT: cheaper composition and prevention of migration of heavy metals into environment. 2 cl, 5 ex, 1 tbl