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In lean coal and lignite, sulfur is predominantly present as organic compounds. According to experiments with a QMC-230 mass spectrometer and an IR absorption analyzer, the removal of sulfur in the reduction of iron-ore concentrates is hindered by the adsorption of sulfur-bearing gases and its...
Analysis of the coal concentrates used in the Ukrainian coke industry yields a mathematical formula for predicting the higher heat of coal combustion in the wet ash-free state on the basis of the coal’s characteristics.
The coking of batch with different proportions of Elegest coal from the Ulug-Khemsk Basin is investigated in laboratory and production conditions. The mechanical strength of the coke is improved when such coal is used in the batch. At the same time, CSR falls, while CRI rises.
Industrial tests show that the enrichment of coal batch containing more than 70% Zh coal must be increased in order to boost coke strength. However, it makes more sense to replace some of the Zh coal in the batch with an optimal quantity of G coal, and to reduce the degree of crushing, so as to...
Coke with ore additive may be produced from Zarechnaya DG coal (Kuznets Basin) and high-sulfur Zh coal (from Samsonovskaya and Krasnolimanskaya enrichment facilities, Donets Basin), which is of low technological value and is used in small quantities in batch for the production of blast-furnace...
The sorption capacity of multiwalled nanotubes synthesized in the mechanical activation of amorphous carbon from corn wastes is investigated. The sorptional effectiveness of the nanotubes depends on their storage time. The use of carbon from corn waste as chelators is considered.
Research on the extraction of phenols from industrial mixtures by physicochemical methods is considered.
Heat insulation may be produced from intershale clay and slurries obtained in flotational coal enrichment, without employing traditional materials. The thermal conductivity and density of the insulation produced are 0.20 W/(m °C) and 1200 kg/m3.
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