Thermal oxidation of concentrates of Co-Ni thiospinels

Thermal oxidation of concentrates of Co-Ni thiospinels Co-Ni concentrates whose major phase components are pentlandite (Ni,Fe,Me)9S8, linneite Co3S4, polydymite Ni3S4, and siegenite NiCo2S4 were subjected to oxidation with atmospheric oxygen under the conditions of nonisothermal and isothermal heating in the interval 20–900°C. The process was studied by differential thermal, X-ray phase, and chemical analysis. The reaction schemes based on the data obtained were suggested, and the optimal temperature interval of low-temperature sulfatizing roasting of Co-Ni thiosphinels was chosen. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Thermal oxidation of concentrates of Co-Ni thiospinels

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427213030026
Publisher site
See Article on Publisher Site

Abstract

Co-Ni concentrates whose major phase components are pentlandite (Ni,Fe,Me)9S8, linneite Co3S4, polydymite Ni3S4, and siegenite NiCo2S4 were subjected to oxidation with atmospheric oxygen under the conditions of nonisothermal and isothermal heating in the interval 20–900°C. The process was studied by differential thermal, X-ray phase, and chemical analysis. The reaction schemes based on the data obtained were suggested, and the optimal temperature interval of low-temperature sulfatizing roasting of Co-Ni thiosphinels was chosen.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Apr 17, 2013

References

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