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Journal of Mining Sciences

2015 year, number 5

Prediction of Structural-Chemical Change in Minerals under Mechanical Impact during Grinding

T. S. YUSUPOV1, F. KH. URAKAEV1, V. P. ISUPOV2
1Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrentieva 3, Novosibirsk, 630090 Russia
2Institute of Chemistry of Solid and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, ul. Kutateladze 18, Novosibirsk, 630128 Russia
Keywords: минерал, тонкое измельчение, дефектообразование, аморфизация, растворимость, флотируемость, поверхностно-активные вещества, mineral, fine grinding, defect formation, amorphization, dissolvability, floatability, surfactants

Abstract

There is sufficient experimental database thus far collected on structural and chemical changes in minerals with different types of chemical bonding under activation grinding. The research has shown the possibility to predict specifics of grinding and defect formation in minerals with different types of chemical bonding. The article shows that type and number of defects formed on the surface of minerals govern important processing properties of the minerals such as capacities to be hydrated, dissolved, floated etc.