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Chemistry for Sustainable Development

2005 year, number 2

Application of mechanical activation to the solid-phase synthesis of beryllium indialite

S. G. PECHERSKAYA1, M. A. MIKHAYLOV1, L. A. BOGDANOVA1 and A. G. PROYDAKOV2
1Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences,
Ul. Favorskogo 1a, Irkutsk 664033 (Russia) E-mail: svelta@igc.irk.ru
2Irkutsk State University, Ul. Lermontova 126, Irkutsk 664033 (Russia)
Pages: 309-312

Abstract

The effect of grinding method on the size of particles of the mixture components and on the parameters of the solid-phase synthesis of beryllium indialite from a mixture of dry oxides BeO, MgO, Al2O3, SiO2 is investigated. It is demonstrated that with the use of mechanical activation the formation of intermediate phases starts at a temperature of 1100 oC, while beryllium indialite starts to form at 1200 oC. The content of beryllium indialite in the activated mixture at the moment when the temperature of 1340 oC is achieved is ~90 %, while without mechanical activation it is only ~50 %.