DBPapers
DOI: 10.5593/SGEM2016/B12/S04.145

OBTAINING SORBENTS FROM GLAUCONITE AND GLAUCONITIC SAND OF KAZAKHSTAN

B. Balgysheva, N. Dalabayeva, A. Botambay, B. Nussip, M. Saduakas
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-56-8 / ISSN 1314-2704, June 28 - July 6, 2016, Book1 Vol. 2, 1127-1134 pp

ABSTRACT
The aim of this study is to develop the mechanical chemical process for the preparation of modified sorbents from glauconite with the addition of sodium dihydrogen phosphate (NaH2PO4), and to determine their physical, and chemical properties. Structural and morphological characteristics, physical, and chemical properties of the Sokolov-Saribay glauconites the Republic of Kazakhstan were identified.
The effect of mechanical treatment on the structure and composition of glauconite and the effect of additive salt on the properties of the sorbent were studied.
Glauconite and glauconitic concentrate were used as main materials. The mixture of glauconite and sodium dihydrogen phosphate with different composition (1:1, 2:1, 3:1, 4:1) were modified structurally by thermal annealing, and were mechanically activated in a planetary mill in order to obtain the sorbent. Mechanically activated products were evaluated by different methods. The differences of glauconite and modified glauconite were observed by TG and DSC. The degree of sorption for Mn2+, Cu2+, Ni2+ and Zn2+ were analyzed as solutions of MnSO4, CuSO4, NiSO4 and ZnSO4 in concentrations of 60 to 1000 mg/l and decreased from Zn2+ (α=94.9%) > Mn2+(86.2%) > Сu2+(85.6%) > Ni2+(48.9%). The practical use of the modified glauconite could be applied in development technologies for cleaning of natural water of heavy metals.

Keywords: fertilizer, glauconite, glauconitic sand, mechanically and thermal activation, microelements, sodium dihydrophosphate, sorbents.

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