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Title: Influence of Heat Treatment Mode of Various Magnesia Rocks on their Properties
Authors: Mitina, Nataliya Aleksandrovna
Lotov, Vasiliy Agafonovich
Sukhushina, A. V.
Keywords: составы; термическая обработка; бруситы; магнезиты; плотность; тепловые режимы
Issue Date: 2015
Publisher: Elsevier
Citation: Mitina N. A. Influence of Heat Treatment Mode of Various Magnesia Rocks on their Properties / N. A. Mitina, V. A. Lotov, A. V. Sukhushina // Procedia Chemistry. — 2015. — Vol. 15 : Chemistry and Chemical Engineering in XXI century (CCE 2015) : XVI International Scientific Conference dedicated to Professor L.P. Kulyov, 25-29 May 2015, Tomsk, Russia. — [P. 213-218].
Abstract: Investigations of the changes of structure, specific surface and true density of following high-magnesia rocks at heat treatment have been performed: brucite rocks, magnesite, hydromagnesia rocks, amorphous magnesite. It has been revealed that to obtain chemically active magnesium oxide, which is used for synthesis of high-refractory materials and obtaining magnesia binder, it is necessary to burn at low or moderate temperatures in the temperature range of 500-800 °С. Increase of temperature more than 800 °С leads to obtaining densely sintered cubic magnesium oxide with the periclase structure.
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