Mechanochemical Activation of Polymetallic Ore and Further Selective Floatation

Abstract:

It has been demonstrated that shock-vibrating activation of minerals is a prospective method to impact the ore; it may be used to intensify chemical and physical-chemical processes of mineral raw material processing and preparation. Differences in the composition and phase properties, obtained both in terms of continuous and periodic modes, are in the fact that in the first case loadings deal with interlayer space preserving layered nature of the mineral. When the mode is continuous, then the disturbances cover the octahedral layer though elementary constituent – tetrahedrons – are preserved. It has emerged that the most important advantage of high reacting capability of activated minerals is in the fact that leaching of some ores may be performed in chlorhydric acid at the expense of transformation of some silicate components into a specific state – loose packing of basic silicate chain. Consequently, shock-vibrating activation has become a basis to develop a method of leaching process intensification as well as a method to control phase formation.

• Periodical: Key Engineering Materials (Volume 844)
• Pages: 65-76
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.844.65
• Online since: May 2020
• Authors: Olena Svietkina*, Kostiantyn Bas, Jamil Haddad, Kyrylo Ziborov, Valentyna Olishevska
• Keywords: Slags, Solid Solutions, Vibration Mills, Vibratory Impact Loading

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