The change of the disperse composition, porous structure and formation of new surfaces of coals of Kiyakty deposit

  • M. I. Tulepov Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • Z. A. Mansurov Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • , A. Alimov Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • A. Zhumabaeva Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • A. Kalieva Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • Sh. Gabdrasheva Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University

Abstract

The obtained experimental data show that in the process of mechanical treatment the initial structure of coals transform, macropores are completely destructed and micropore are partially destructed. The increase in activity can be caused by the growth of the external and internal surface due to formation of new pores and opening of earlier inaccessible pares and on account of the change in the physico-chemical structure of newly formed surfaces. In this connection, the porous structure of coals of different stages before and after their dispersion is considered. Analysis of differential curves of particles distribution by sizes and change of specific surface of coal samples showe that after mechanic activation the change of the disperse composition of the coal occurs one to: grinding and aggregation of the dispersed particles.

References

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Published
2013-06-20
How to Cite
TULEPOV, M. I. et al. The change of the disperse composition, porous structure and formation of new surfaces of coals of Kiyakty deposit. International Journal of Biology and Chemistry, [S.l.], v. 5, n. 1, p. 94-98, june 2013. ISSN 2409-370X. Available at: <http://ijbch.kaznu.kz/index.php/kaznu/article/view/87>. Date accessed: 24 apr. 2019.

Keywords

coal; disperse particles; mechanical activation; specific surface of coal; coal porosity; aggregation of particles