Possibilities of Exchange Mechanochemcial Reactions in the Synthesis of Magnesium Silicates
L. G. Karakchiev, E. G. Avvakumov, A. A. Gusev, O. B. Vinokurova
Keywords: magnesium silicates, mechanochemical synthesis, exchange reactions, hydrated salts and oxides, dispersed powder
Pages: 591-596
Abstract
Nanodisperse powder of magnesium meta- and ortho-silicates was obtained with the help of the solid-phase exchange reaction of magnesium chloride with sodium silicate (using NaOH or without it) proceeding under mechanical activation. The formation of enstatite and forsterite proceeds through the X-ray amorphous (or weakly crystallized) hydrated compound during the subsequent thermal treatment. A comparison with the known method of obtaining these silicates under mechanical activation of the mixtures of magnesium hydroxide and silica gel was carried out.
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