Journals →  Obogashchenie Rud →  2023 →  #6 →  Back

ArticleName Development of a beneficiation scheme for titanium-zirconium sands of the Shokash deposit, North Kazakhstan
DOI 10.17580/or.2023.06.01
ArticleAuthor Bulatov K. V., Gazaleeva G. I., Shikhov N. V., Nazarenko L. N.

JSC «Uralmekhanobr» (Ekaterinburg, Russia)

Bulatov K. V., General Director, Candidate of Engineering Sciences
Gazaleeva G. I., Chief Researcher, Doctor of Engineering Sciences,
Shikhov N. V., Head of Laboratory, Candidate of Engineering Sciences
Nazarenko L. N., Senior Researcher


The article presents research on the development and comparison of two bulk concentrate processes for titanium-zirconium sands of the Shokash deposit in Northern Kazakhstan. The material and mineral compositions and particle size distribution were studied for the samples and a methodology was designed for constructing and studying two process circuits for obtaining bulk collective concentrates from the original titanium-zirconium sands. The first process generates rougher bulk concentrate and waste tailings using the traditional gravity separation methods in VSh-750 screw separators. Under the second process, rougher ilmenite and rutile-zirconium concentrates and waste tailings are generated using high-gradient magnetic separation in a LONGI LGS-EX separator. The methodology developed envisages similar preparation stages for the two processes, namely, disintegration, sand surface cleaning in a rotary pulsation device, fine screening, and desliming. A comparison of the relevant process indicators indicates clear advantages of the magnetic gravity separation process. Magnetic separation rendered an almost final ilmenite concentrate containing TiO2 at 50.60 wt%, with a yield of 9.3 % and recovery of 67.81 %. This concentrate requires minimal final treatment for obtaining higher concentrate grades. Total TiO2 recovery in the magnetic gravity separation process was 90.7 %, which is 1.5 % higher as compared to traditional gravity separation. For both processes, studies were completed with final treatment of the bulk concentrates using magnetic, gravity, and electrical separation methods in order to obtain monomineral products. High-grade monomineral ilmenite, leucoxene, rutile, and zirconium concentrates were successfully obtained in the exercise. The magnetic gravity separation process has significant advantages in terms of optimized layout solutions and lower capital costs.

keywords Titanium-zirconium sands, preparation, magnetic gravity separation process, high-gradient separator, ilmenite concentrate, final treatment of concentrates, TiO2 recovery

1. Borisenko L. F., Delitsyn L. M. Mineral resources of titanium and methods for obtaining its compounds. Moscow: Geoinformmark, 1996. 74 p.

2. Levchenko E. N., Veremeeva L. I., Gorlova O. E. Technogenic mineral materials: Composition and technological property features, geological and technological mapping. Rudy i Metally. 2018. No. 1. pp. 64–75.
3. Levchenko E. N., Galkin M. V., Matvienko S. Yu. Depth of processing and comprehensive utilization of mineral raw materials as a way to increase the efficiency of the development of rare-metal-titanium deposits. Razvedka i Okhrana Nedr. 2018. No. 8. pp. 31–37.
4. Bashlykova T. V., Chanturia E. L., Amosov R. A., Levchenko E. N. The use of new methods and technologies in the study of complex rare metal sands. Tsvetnye Metally. 2000. No. 5. pp. 8–12.
5. Levchenko E. N., Klyucharev D. S., Lalomov A. V. Genesis, features of material composition and problems of development of pare metal-titanium placers of the West Siberian mega-province. Litologiya i Poleznye Iskopayemye. 2020. No. 2. pp. 162–176.
6. Carey S. P., Poley E. W. Post-depositional processes affecting the distribution of mineral sands, Scotia area (Murray Basin), NSW, Australia. Australian Institute of Geoscientists Bulletin. 1999. Vol. 26. pp. 21–28.
7. Grey I. E., Reid A. F. The structure of preudorutile and its role in the natural alteration of ilmenite. American Mineralogist. 1975. Vol. 60. pp. 898–906.
8. Samayamutthirian Palaniandy, Rinto Halomoan, Hidemasa Ishikawa. Tower mill circuit performance in the magnetite grinding circuit — The multi-component approach. Minerals Engineering. 2019. Vol. 133. pp. 10–18.
9. Markauskas D., Kruggel-Emden H. Coupled DEMSPH simulations of wet continuous screening. Advanced Powder Technology. 2019. Vol. 30, Iss. 12. pp. 2997–3009.
10. Nowicki J., Hebda-Sobkowicz J., Zimroz R., Wylamanska A. Dependency measures for the diagnosis of local faults in applications to the heavy-tailed vibration signal. Applied Acoustics. 2021. Vol. 178. DOI: 10.1016/j. apacoust.2021.107974
11. Grey I., MacRae C., Nicholson T. Alteration of ilmenite in the Murray Basin — Implication for processing. Australian Institute of Geoscientists Bulletin. 1999. Vol. 26. pp. 129–138.
12. Patyk-Kara N., Chizhova I., Levchenko E., Stekhin A. Heterogeneity and unconformity of mineral assemblages of Tsentralnoe Ti-Zr placer deposit: 3-D model. Proc. of IAMG′05. GIS and spatial analysis. Toronto, Canada, 2005. Vol. 2. pp. 1051–1059.
13. Levchenko E. N. Innovative technologies for raremetals processing. Ratsionalnoye Osvoyenie Nedr. 2020. No. 2. pp. 58–67.
14. Warell L. Mineral deposits safeguarding and land use planning — The importance of creating shared value. Resources. 2021. Vol. 10, Iss. 4. DOI: 10.3390/resources10040033
15. Shikhov N. V., Levchenko E. N. Variation of the choice of technology for titanium-zirconium sands beneficiation. Proc. of the International scientific and practical conference «Modern trends in the theory and practice of mining and processing of mineral and man-made raw materials». Ekaterinburg, 06–08 November, 2019. pp. 349–352.
16. Levchenko E. N. Innovative technologies for processing non-conditional titanium and zirconium mineral concentrates and production of liquid commodity products. Razvedka i Okhrana Nedr. 2020. No. 3. pp. 46–52.

Language of full-text russian
Full content Buy