FIELD: coal industry. SUBSTANCE: coal is crushed, milled, dried, vibro-repelled at 40-65 C for 12-15 min, ground again and fraction of particle size 5-10 mcm is isolated. Fraction is mixed with semicoke addition at particle size 1-5 mcm, and mixture is kept in atmosphere containing 3-5 vol. oxygen for 2.5-3.0 hr. EFFECT: improved method of carbon-containing material preparing. 1 tbl
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Authors
Dates
1995-11-27—Published
1991-07-05—Filed