The change of the disperse composition, porous structure and formation of new surfaces of coals of Kiyakty deposit
46 38
Keywords:
coal, disperse particles, mechanical activation, specific surface of coal, coal porosity, aggregation of particlesAbstract
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
1. Taic E.M., Andreeva I.A., Methods of the analysis and test of coals. – M: Nedra, 1983 – p.301
2. Bytyzova L.F., Krishton A., Saranchyk V.I., Kozlova I.V., Dyber S., Ge J.M. Structural and chemical transformations of the modified brown coal at pyrolysis and a hydrogenation // Chemistry of solid body. – 1998. – №4. – Р.36-45.
3. Hrenkova T.M., Kirda B.C. Mechanochemical activation of coals // Chemistry of solid body. – 1994. – №6. – P.36-42.
4. Вoldyrev W.W. Mechanochemistry of inorganic solids // Advances in Solid Chemistry. -1986. - Vol. l, № 1. - P. 400-418.
5. Вutyagin P.Yu., Рavlichev J.K. Determination of energy yield, of mechanochemical reactions // Reactivity of Solids. - 1986. - Vol. 1, N 4. -P. 361-372.
2. Bytyzova L.F., Krishton A., Saranchyk V.I., Kozlova I.V., Dyber S., Ge J.M. Structural and chemical transformations of the modified brown coal at pyrolysis and a hydrogenation // Chemistry of solid body. – 1998. – №4. – Р.36-45.
3. Hrenkova T.M., Kirda B.C. Mechanochemical activation of coals // Chemistry of solid body. – 1994. – №6. – P.36-42.
4. Вoldyrev W.W. Mechanochemistry of inorganic solids // Advances in Solid Chemistry. -1986. - Vol. l, № 1. - P. 400-418.
5. Вutyagin P.Yu., Рavlichev J.K. Determination of energy yield, of mechanochemical reactions // Reactivity of Solids. - 1986. - Vol. 1, N 4. -P. 361-372.
Downloads
How to Cite
Tulepov, M. I., Z. A. Mansurov, , A. Alimov, A. Zhumabaeva, A. Kalieva, and Sh. Gabdrasheva. 2013. “The Change of the Disperse Composition, Porous Structure and Formation of New Surfaces of Coals of Kiyakty Deposit”. International Journal of Biology and Chemistry 5 (1):94-98. https://ijbch.kaznu.kz/index.php/kaznu/article/view/87.
Issue
Section
Chemistry
License
ааа
