FIELD: coal-mining industry under low-temperature conditions. SUBSTANCE: prophylactic agent comprises, wt.%: low-molecular polyethylene solution, 50-60, and tar, 40-50. Agent is prepared in two stages; in first stage, low-molecular polyethylene solution in catalytic or thermal cracking fraction having boiling temperature of 195-270 C and heated to 80-90 C, and in second stage predetermined amounts of the resulting solution with tar are mixed at 80-90 C and are maintained isothermally at given temperature. EFFECT: improved low-temperature, dust-binding and wetting properties of the prophylactic agent. 3 cl, 3 ex, 3 tbl
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Authors
Dates
1999-06-27—Published
1997-08-28—Filed