St Petersburg Mining Institute Technical University

Saint Petersburg, Russia

St Petersburg Mining Institute Technical University

Saint Petersburg, Russia
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Kokorin A.M.,OOO TWELL | Kurchukov A.M.,St Petersburg Mining Institute Technical University
Russian Journal of Non-Ferrous Metals | Year: 2012

Control over the reagent flotation mode of copper-nickel ores is considered. It is proposed to take into account the residual concentration of sodium dimethyl dithiocarbamate (DMDC) ions in the pulp in its algorithm. Controlling the DMDC consumption using the results of determining the residual concentration of its ions in the pulp optimizes the reagent mode and makes it possible to increase the qualitative characteristics of the flotation of copper-nickel ores with a simultaneous decrease in material expenses for its performance. © 2012 Allerton Press, Inc.


Skublov S.G.,Russian Academy of Sciences | Sedova I.S.,Russian Academy of Sciences | Glebovitskii V.A.,Russian Academy of Sciences | Gembitskaya I.M.,St Petersburg Mining Institute Technical University | Samorukova L.M.,Russian Academy of Sciences
Geochemistry International | Year: 2010

This paper reports the results of chemical and structural study (electron microscopy and ion microprobe) of zircons from different-age generations of migmatite leucosomes in the basement rocks and Kurumkan Formation within the Nimnyr block, Aldan shield. The studied zircons show REE distribution pattern with a positive slope from LREE to HREE and positive Ce anomaly, which is typical of magmatic zircons, but have elevated LREE contents, which implies their crystallization from migmatite melt with subsequent fluid reworking. The transformations of the zircons were caused by fluid, which was separated during crystallization of the last LILE-enriched portions of the melt and inherited the geochemical features of the host rock-leucosome. © Pleiades Publishing, Ltd., 2010.


Sizyakov V.M.,St Petersburg Mining Institute Technical University | Zaitsev Y.A.,St Petersburg Mining Institute Technical University | Lyakh S.I.,St Petersburg Mining Institute Technical University
Russian Journal of Non-Ferrous Metals | Year: 2012

The possibility of isolating rubidium from acid-alcohol solutions in the form of its complex halogenide with tellurium is considered. The solubility of potassium, sodium, and rubidium in solutions of the mixture of hydrochloric acid and ethanol with their various volume ratios at t = 25°C is investigated. The possibility of increasing the degree of isolation of Rb in the form of its hexachlorotellurite (Rb 2TeCl 6) upon going from acidic to acid-alcohol solutions is shown. © 2012 Allerton Press, Inc.

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