Obogashchenie Rud

The issue begins with the section “Raw material base”. The article presented in this section is dedicated to the Olenegorsky Mining Complex mineral and raw material base. Under the conditions of decreasing demand for iron ore products and their price reduction, the authors (S.V. Petrov, et al.) consider it expedient to draw small deposits, formerly not utilized in economic operations, into commercial open-cast mining. The Svintsovye Tundry ore occurrence ferruginous quartzite mineral and chemical composition studies showed their conformity with ores from other deposits of the Olenegorsky ore district, and the ores in question dressability processing studies permitted to draw the conclusion that the ores from this occurrence may be processed at the Olenegorskaya Concentrator without any changes in the existing flow sheet.

In the section “Beneficiation processes”, the article by V.I. Ryaboy, et al., describes that BTF-series reagents-collectors were synthesized and tested, and that effects of their surface-active properties and hydrophobization ability upon flotation activity were studied. This study permitted to expand the product range and application of BTF- series reagents, presently brought into commercial practice at 11 ore-dressing facilities of Russia and Kazakhstan.

The section “All-round utilization of raw materials” presents the Yakovlevskoye high-grade iron ore deposit integrated utilization technology, developed by V.L.Trushko, et al. The technology permits to produce a high-grade competitive raw material for metallurgical industry and a competitive red iron oxide pigment, utilized in paint-and-varnish industry, as well as in other sectors.

The environmental subject is represented by the article by V. А. Chanturiya, et al. It is known, that rocks of diamond pipes of the deposit named after M.V. Lomonosov are almost completely substituted by saponite. In water medium this mineral forms fine-dispersed jelly-like suspension, that practically may not be settled even by means of various coagulating reagents and flocculants. An electrochemical separator was developed and tested by the authors under full-scale conditions with a view to effectively de-slime saponite-containing watersat OAO “Severalmaz” facilities, its principle of operation consisting in application of electrophoretic effect of negatively charged finely-dispersed saponite particles attachment to anode, with electroosmosis and clarified water obtained on cathode.

The section “Processing Technology” presents the article by V.V. Zuev that proposes an energy rationale for the hypothesis of theEarth’s inner core three-phase composition from Fe-Co-Ni elements in hypervalent states. This study is not only of a theoretical, but also of a practical importance, as it opens new avenues to production of new materials with unique strength characteristics.

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