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Options are outlined for calculating the technological value of coal and coal concentrates in the context of contractual obligations and the quality of the coke produced.
Heat-treated heavy tar from the high-seed pyrolysis of Kansko-Achinsk and Mongolian (Baganursk and Tugrugnursk) lignite may be used in coking. In that case, up to 7–10% 1OSV and KS coal may also be introduced in the batch. Adding the tar improves the gross coke yield and the physicomechanical...
Preheating of scrap in converters by means of sorted long-flame coal has been introduced. Coal of the 25–13 mm class is preferable to the 50–25 mm class, in terms of faster ignition, stable combustion, stable metal temperature, shorter heating times, reduced oxygen consumption, and greater...
Attention focuses on the condition of existing coke ovens and measures for their preservation and stabilization of their operation during times of economic crisis. Views on this topic from the Sixteenth Annual Seminar of Coke-Industry Specialists are reported.
Quantitative characteristics are presented for the bitumen extracted from Podmoskovnyi, Kansko-Achinsk, Irkutsk, Baganursk, and Tugrugnursk lignite and the humic acids from the Tugrugnursk deposit by polar solvents (hexane, diethyl ether, acetone, chloroform, benzene, toluene, 1 : 1...
The environmental problems of natural-fuel extraction and processing associated with ineffective wastewater treatment, water recycling, and resource saving are considered.
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