Issue |
MATEC Web Conf.
Volume 85, 2016
Chemistry and Chemical Technology in XXI Century (CCT 2016)
|
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Article Number | 01025 | |
Number of page(s) | 6 | |
DOI | https://doi.org/10.1051/matecconf/20168501025 | |
Published online | 17 November 2016 |
Features of chemical-mineralogical composition and processing properties for medium-ferrous bauxites
Tomsk Polytechnic University, Tomsk, Russia
* Corresponding author: lgovorovatpu@yandex.ru
The features of chemical-mineralogical composition and processing properties of bauxites from Iksinsk and Severoonezhsk deposits are investigated in the paper. It is found that the studied bauxites are coarsely dispersed and low-dispersive, high-alumina clay raw materials with a high content of colouring oxides. According to their mineralogical composition, Iksinsk and Severoonezhsk bauxites are boehmite-hydrargillite-kaolinite clay bauxites. Moreover, Iksinsk bauxite samples are characterized by the total absence of quartz impurities. The samples of plastic molding based on Iksinsk bauxites are fully sintered at 1500 °C with the formation of strong structures with a compressive strength of 70-120 MPa (depending on the variety of bauxites). The samples based on Severoonezhsk bauxites are fully sintered at 1450 °C, and they are characterized by a compressive strength to 70 MPa in the sintered state.
© The Authors, published by EDP Sciences, 2016
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