Preliminary communication

Revisiting the Kazakhstan natural sorbents modification

B. K. Kenzhaliyev ; JSC “Satbayev University after K. I. Satpaev”, Almaty, Kazakhstan
T. Yu. Surkova ; JSC “Institute of Metallurgy and Ore Benefication”, Almaty, Kazakhstan
A. N. Berkinbayeva ; JSC “Institute of Metallurgy and Ore Benefication”, Almaty, Kazakhstan
Z. D. Dosymbayeva ; JSC “Institute of Metallurgy and Ore Benefication”, Almaty, Kazakhstan
B. E. Abdikerim ; JSC “Institute of Metallurgy and Ore Benefication”, Almaty, Kazakhstan

Abstract

Kazakhstan ranks second in the world in natural uranium reserves and a leading position in its production. Hydrometallurgical processing of uranium raw materials results in a significant amount of liquid technogenic wastes containing radionuclides. Sorption cleaning methods for these wastes are the most effective ones. However, the high cost of synthetic sorbents and the low sorption capacity of natural ones is a deterrent to their use. So, to increase the sorption capacity of natural sorbents by their modification is an urgent problem. In this paper, a method to modify Kazakhstani natural zeolite was proposed by us and previously not investigated. Also the data of physicochemical studies of the initial raw material and the modified product was given and the increase in the natural sorbent specific surface in the modification process was demonstrated.

Keywords

zeolite; modification; activation; raw material; Kazakhstan

Hrčak ID:

224782

URI

https://hrcak.srce.hr/224782

Publication date:

1.1.2020.

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