Журналы →  Tsvetnye Metally →  2020 →  №6 →  Назад

Название Flotation activity rating of the components of host rocks of the ores being fed to Talnakh Concentrator
DOI 10.17580/tsm.2020.06.05
Автор Umysheva A. A., Velichko V. V., Knyazev V. N., Tchertok E. V.
Информация об авторе

Company "Nornickel" , Polar Division, Norilsk, Russia:
A. A. Umysheva, Chief Specialist, Laboratory of Engineering Support of Production at Talnakh Concentrator, Center for Engineering Support of Production, e-mail: TslSP@nornik.ru
V. V. Velichko, Leading Processing Engineer, Laboratory of substantial and chemical analysis, Center for Engineering Support of Production, e-mail: Velichkovv@nornik.ru
E. V. Tchertok, Deputy Head of Engineering Department, Talnakh Concentrator

Siberian Federal University, Krasnoyarsk, Russia:

V. N. Knyazev, Assistant Professor at the Department of Deposits Geology and Exploration Methods, School of Mining, Geology and Geotechnology, Candidate of Geological and Mineralogical Sciences, e-mail: vnknyazev@mail.ru


Talnakh Concentrator processes the copper-nickel ore blend from the Talnakhskoye and the Oktyabrskoye deposits via bulk-selective flotation. The Concentrator is focused on recovery of valuable metals and stable quality of the concentrates produced under the conditions of fluctuating ore blend composition. The major task at bulk flotation step is to provide selective separation of sulfides and rock minerals producing bulk sulfide CuNi concentrate. Currently, a decrease in waste rock separation degree at the bulk flotation step leads to the occasional increases of SiO2 content in nickel-pyrhotite concentrate of Talnakh Concentrator. As a result, there is a decline of the thickening rate of nickel-pyrhotite concentrate, as well as a rise of heat consumption during treatment of the Ni-feed containing this concentrates at the smelting furnaces, and a formation of built-up in the transition area between uptake shaft of flash-smelting furnace and waste-heat boiler. The host rock represented by serpentine, pyroxene, plagioclase etc. contains about 30–50% of SiO2 and its derivatives indirectly indicating the floatability of nonmetallic minerals based on recovery of equivalent SiO2 (hereinafter SiO2eq.) into intermediate and final concentrates of Talnakh Concentrator. The article summarizes the results of the complex study of SiO2 distribution within the products of current ores blend and its components processing at Talnakh Concentrator. It was defined that SiO2eq. recovery into the concentrate of bulk floatation for disseminated cupriferous ore blend from Oktyabrsky mine is 9.94 и 5.51% abs. higher compared to that of the high grade ores from Skalisty and Taimyrsky mines, respectively. The weight content of minerals was measured by powder diffraction using Rietveld method.

Ключевые слова High-grade, cupriferous & disseminated ore blend, silica dioxide, concentration performance indicators, waste rock, bulk concentrate, separation selectivity, Ritvield method
Библиографический список

1. Abramov A. A. Processing, concentration and multiple use of solid minerals : a textbook for universities in 3 volumes. Vol. 2. Moscow : Izdatelstvo Moskovskogo Gornogo Universiteta, 2004. 510 p.
2. Genkin A. D., Distler V. V., Gladyshev G. D. et al. Sulfide coppernickel ores of Norilsk deposits. Moscow : Nauka, 1981. 234 p.
3. Filippova N. A., Shkrobot E. P., Vasilyeva T. N. Analysis of nonferrous metal ores and products of their processing. Moscow : Metallurgiya, 1980. 224 pp.
4. Krivolutskaya N., Tolstyk N., Kedrovskaya T., Naumov K., Kubrakova I. et al. World-Class PGE-Cu–Ni Talnakh Deposit: New Data on the Structure and Unique Mineralization of the South-Western Branch. Minerals. 2018. Vol. 8. p. 124. DOI: 10.3390/min8040124.
5. Barnes S.-J., Le Vaillant M., Godel1 B., Lesher C. M. Droplets and Bubbles: Solidification of Sulphide-rich Vapour-saturated Orthocumulates in the Norilsk-Talnakh Ni–Cu–PGE Ore-bearing Intrusions. Journal of Petrology. 2019. Vol. 60, Iss. 2. pp. 269–300. DOI: 10.1093/petrology/egy114.
6. Duran C. J., Barnes S.-J., Pleše P., Kudrna Prašek M., Zientek M. L. et al. Fractional crystallization-induced variations in sulfides from the Noril’sk-Talnakh mining district (Polar Siberia, Russia). Ore Geology Reviews. 2017. Vol. 90. pp. 326–351.
7. Barnes S.-J., Ripley E. M. Highly siderophile and strongly chalcophile elements in magmatic ore deposits. Reviews in Mineralogy and Geochemistry. 2016. Vol. 81, Iss. 1. pp. 725–774.
8. Young R. A. The Rietveld Method. Oxford : Oxford University Press, 1995. 298 p.
9. Mikhalkina O.G. Application of X-ray diffraction to studying core and man-caused products. Vesti Gazovoy Nauki. 2016. No. 4. pp. 96–107.
10. Pushcharovskiy D. Yu. Radiography of minerals. Moscow : Geoinformmark, 2000. 292 p.
11. Reitveld H. M. A profile refinement method for nuclear and magnetic structures. Journal of Applied Crystallography. 1969. Vol. 2. pp. 65–71.
12. Reitveld H. M. Line profiles of neutron powder-diffraction peaks for structure refinement. Acta Crystallographica. 1967. Vol. 22. p. 151.

Language of full-text русский
Полный текст статьи Получить