Improvement of beneficiation technology for the Eleninka deposit ore

The article addresses the problem connected with the end product quality at Novokaolinovy GOK. The chemistry and physicochemical properties of ore are studied. Initial ore contains much iron and titanium, which affects the final product quality adversely. The influence of hydrocycloning and wet magnetic separation on processing efficiency is examined. The grain size composition of ore samples was analyzed first. From the screen analysis results of natural samples from the Eleninka deposit, it is seen that the particles mostly have the size of 0.04+0.02 mm. The lab-scale hydrocycloning data of kaolin clay prove the sufficient efficiency of this method as it enables separation of a sand fraction larger than 0.04 mm. The hydrocyclone outlet was subjected to wet magnetic separation to improve the end product quality. The results show that the coloring pigment—iron oxide—is either ingrained in emulsion or is in the crystal lattice. The analysis of chemistry, grain size composition and whiteness of Eleninka ore samples after hydrocycloning proves producibility of standard-quality beneficiated kaolin. The article gives recommendations on improvement of processing flow charts for the Eleninka deposit ore to produce higher quality white kaolin in case of using the non-selective mining technology.

Keywords: kaolin, Eleninka deposit, beneficiation, grain size analysis, magnetic separation, sizing, hydrocyclone, whiteness.
For citation:

Grishin I. A., Shavakyleva O. P., Fadeeva N. V., Velikanov V. S. Improvement of beneficiation technology for the Eleninka deposit ore. MIAB. Mining Inf. Anal. Bull. 2022;(6):156-166. [In Russ]. DOI: 10.25018/0236_1493_2022_6_0_156.

Acknowledgements:

The study was supported by the Ministry of Science and Higher Education of the Russian Federation, Project No. FZRU-2020-0011.

Issue number: 6
Year: 2022
Page number: 156-166
ISBN: 0236-1493
UDK: 622.7
DOI: 10.25018/0236_1493_2022_6_0_156
Article receipt date: 14.03.2022
Date of review receipt: 21.04.2022
Date of the editorial board′s decision on the article′s publishing: 10.05.2022
About authors:

I.A. Grishin1, Cand. Sci. (Eng.), Assistant Professor, Head of Chair, e-mail: igorgri@mail.ru, ORCID ID: 0000-0001-8010-7542,
O.P. Shavakyleva1, Cand. Sci. (Eng.), Assistant Professor, e-mail: shavakylevao@yandex.ru, ORCID ID: 0000-0001-6291-2687,
N.V. Fadeeva1, Cand. Sci. (Eng.), Assistant Professor, e-mail: natali_fadeeva@mail.ru, ORCID ID: 0000-0001-9291-9927,
V.S. Velikanov, Dr. Sci. (Eng.), Assistant Professor, Professor, e-mail: rizhik_00@mail.ru, Ural Federal University, 620002, Ekaterinburg, Russia, ORCID ID: 0000-0001-5581-2733,
1 G.I. Nosov Magnitogorsk State Technical University, 455000, Magnitogorsk, Russia

 

For contacts:

V.S. Velikanov, e-mail: rizhik_00@mail.ru, I.A. Grishin, e-mail: igorgri@mail.ru.

 

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