1 - 9 of 9 articles
The parameters δ, B, f
, and cA calculated from the elementary composition of Donetsk and Lvov-Volynsk coal of different metamorphic stages characterize not so much the structure of the organic mass as the relative rates of chemical reactions determining the carbon, hydrogen, and oxygen...
The influence of phenol-formaldehyde resin on the clinkering properties of coal batch is studied by means of the dilatometric method proposed by the Institute of Mining and Dnepropetrovsk Metallurgical Institute. For comparison, its influence on the clinkering ability is studied by the Roga...
The industrial use of Kuznetsk Basin SS coal in silicon production is considered. The influence of SS coal quality on the operation of electrothermal furnaces is studied.
The expansion pressure of rammed batch and loose batch is studied as a function of the packing density, the moisture content, and the degree of crushing. The expansion pressure is found to depend on the gap between the rammed coal cake and the heating walls of the furnace chambers.
Recent research regarding the use of computerized X-ray tomography to obtain a three-dimensional distribution of the density within coke samples is reviewed. Tomographic data provide a detailed three-dimensional picture of the coke’s pore structure. The changes in coke structure due to its...
The strength, reactivity, and technical analysis of coke nuts are discussed. Nuts from gross coke contain 20% more of the (19–25)-mm size class than for blast-furnace siftings. Compared to wet-slaked coke nuts, dry-slaked coke nuts are characterized by higher hot and cold strength, higher carbon...
The carbonization of coal pitch in the presence of an additive (5–14%) that contains sulfone groups is considered. The quantity of pitch sublimates is reduced, along with their content of carcinogenic polycyclic aromatic hydrocarbons. In terms of benz[a]pyrene, the reduction in carcinogenic...
The structural model of anthracene fraction 1 from coal tar is analyzed. That model contains the basic components of the fraction. The constraints on the isolation of individual components by rectification are identified.
The atomization of anodes made of solid coking products (coke, pyrocarbon, and pitch coke) within an electric arc is studied experimentally. The products of electric-arc synthesis obtained in such conditions are analogous to the nanostructures obtained from graphite electrodes.
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