Obogashchenie Rud
The beginning articles in this issue are dedicated to the developments, test-operated at the facilities located in the North-Western region or specially designed for the operations in question.
The first article (the authors: А.N. Korovnikov, et al.) describes the results of the GST 72МТ screen testing in the OAO “Apatit” ANOF 3 Concentrator ore-crushing section; the screen has been developed by “Mekhanobr-Tekhnika” Research-and-Engineering Corporation, and is distinguished by a number of advantages over GST 72 modification. The testing results (stable achievement of 85 % screening efficiency on -16 mm size fraction at 1000 t/hr throughput) showed that the screen is very promising with regard to wide application in ore-preparation circuits at base and ferrous metals ore-dressing plants.
The article by N.А. Patkovskaya and Т.I. Tasina proposes the strategy of advanced modernization for the iron-ore operations in the North-Western region (OAO “Karelsky Okatysh”, OAO “Olkon” and OAO “Kovdorsky MCC”), providing for all-round utilization of the mineral raw materials, as well as diversification of production with marketable products range differentiation.
In the section “Beneficiation processes”, the article by М. Purevdash, et al., analyzing the interesting results of the experiments with a view to study the effect of silicate bacteria on structure and certain processing properties of silica-containing ores and their concentration products, may be noted.
Two articles in the section “Process Theory” are dedicated to the application of a promising computer modeling method for design of selectively-acting reagents and their efficiency checking – alkyl hydroxamic acids in sulfide ores flotation, (the article by P.М. Solozhenkin and О.I. Solozhenkin), and a mixture of sodium oleate and amido acid AMK-62 in flotation of apatite and calcite monomineral fractions (the article by N.F. Usmanova and V.I. Bragin).
The environmental subject is represented by the article by V. А. Chanturya, et al., dedicated to development of the galvano-coagulation copper and zinc recovery technology from mine and waste dump water, permitting to obtain water purified to MAC (maximum allowable concentration) norms and produce an extra quantity of metal. An economic effectiveness of the proposed technology is estimated. The same section presents press release on commissioning the first in Russia paste thickener, designed for operation in severe climatic conditions at the ZAO “Polus Zoloto” Blagodatnoye deposit gold-recovery plant. Commissioning was performed by the companies “Trane Tecknikk” and “Westech”.
The article by G.Т. Sazonov analyzes the main tendencies for the Russian metallurgy industry development, described in “The Russian metallurgy industry development strategy for the period until 2020”, worked out by the Ministry of Industry and Trade of the Russian Federation, as well as a number of other branches of government.
One of the tasks of the Strategy – assistance in organization of small business facilities in the Mine-and-Mill Complex – is reflected in the article by S.G. Cheburashkin, describing ZAO “Mineralintech” experience of successful participation in solution of a wide range of engineering tasks at the “Norilsk Nickel Mine-and-Mill Complex”.
The issue is ended with publications devoted to the anniversaries of the two eminent specialists of the “Mekhanobr” Institute – I.M. Abramobich and G.A. Finkelshtein, who made significant contributions to development of the Russian mining-and-processing machine-building industry.
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