FIELD: sold fuels.
SUBSTANCE: coal briquette contains 50% and less than at least slime and/or dust and fine coal residues as principal components, said slime and said dust including iron or iron compounds, carbon, calcium and magnesium compounds, as well as 5-20 wt parts of binder per 100 wt parts principal components. Coal briquette manufacture is also described.
EFFECT: increased strength on fall and preserved satisfactory dynamic cracking on heating.
15 cl, 6 tbl, 3 ex
Authors
Dates
2005-11-20—Published
2003-05-30—Filed