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The processing of liquid steelmaking slags to obtain a commercial product with specified properties and maximum iron extraction is considered. The performance of existing systems for liquid-phase reduction of the metal from slag and methods of liquid-slag processing is compared. Prototype equipment for slag processing is developed and tested at OAO OMK-Stal’ (Vyksa) on liquid electrofurnace slag and ladle (refining) slag.

Results of investigations into strengthening the nickel host in the diamond composite electrochemical coating (DCEC) with nanodispersed particles are reflected. Diamond nanopowders of the detonation synthesis, which were introduced into the DCEC through the electrolyte, are applied as the strengthening phase. As a result, the microhardness of the nickel host increased by a factor of 3, while the durability of tubular drilling tools after the deposition of the diamond coating increased by a factor of 4. The developed technology can be used when producing a diamond tool for cutting stone, glass, and ceramic materials, as well as to produce correcting tools.

Physical modeling of the high-temperature cooling and solidification of slag melt that is penetrating into spherical packing permits assessment of the thermal and physical parameters of the slag as it cools in the spaces between the spheres. The chemical and phase composition of the broken slag is investigated, and its physicomechanical characteristics are determined. The data obtained permit the development of systems to convert slag melt to gravel and inert filler for concrete.