NDLI: Reduction of metals from sulfides

Content Provider	Springer Nature Link
Author	Oleinikova, N. V. Chekushin, V. S. Baksheev, S. P.
Copyright Year	2007
Abstract	Existing notions on reduction of metals from oxides and sulfides are based on realization of dissociative processes associated with the formation of simple substances. Metal sulfides can be considered as compounds of oppositely charged species formed owing to totality of electrostatic and coordination binding in the Me$^{z+}$-S$^{2−}$ system. Reduction of metals from such compounds with the use of donor properties of sulfide sulfur is an electrochemical process with the participation of the electrode pair Me$^{z+}$ and S$^{2−}$ in the mode of internal electrolysis in the system, which provides utilization of elemental sulfur that is formed through chemical reactions. As an electrochemical medium, molten caustic soda is proposed. In its presence, elemental sulfur disproportionates with the preferential accumulation of sulfide and sulfate sulfur. The reaction causes irreversibility of the reduction process.
Starting Page	88
Ending Page	91
Page Count	4
File Format	PDF
ISSN	10678212
Journal	Russian Journal of Non-Ferrous Metals
Volume Number	48
Issue Number	2
e-ISSN	1934970X
Language	English
Publisher	Allerton Press, Inc.
Publisher Date	2007-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Metals and Alloys Mechanics of Materials

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Reduction of metals from sulfides