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Название Optimized regimes of nepheline flotation using stockpiled apatite-nepheline processing waste (the Khibiny deposits)
DOI 10.17580/tsm.2022.08.01
Автор Mitrofanova G. V., Marchevskaya V. V., Perunkova T. N.
Информация об авторе

Mining Institute at the Kola Research Centre of the Russian Academy of Sciences, Apatity, Russia:

G. V. Mitrofanova, Lead Researcher, Candidate of Technical Sciences, e-mail: g.mitrofanova@ksc.ru
V. V. Marchevskaya, Lead Researcher, Candidate of Technical Sciences, e-mail: v.marchevskaya@ksc.ru
T. N. Perunkova, Lead Process Engineer, e-mail: t.perunkova@ksc.ru


The task of processing stockpiled apatite-nepheline waste is of relevance and in line with the goal of ensuring environmental safety in Russia’s Arctic zone achievable through the reduction of accumulated environmental damage. The cost of processing secondary raw materials — when no grinding is required and thus most energy costs are saved — is much lower in comparison with the processing of natural raw materials. Around 1 billion tons of flotation waste have accumulated in the tailings ponds of Apatit-owned concentrator plants over the 90-year history of exploiting the Khibiny deposits. It poses a real threat of toxic pollution. In this regard, the development of beneficiation processes aimed at reducing waste that goes in the tailings ponds should be considered a priority area of research in the field of mineral processing. This paper describes the results of an extended laboratory study that looked at the concentratibility of two samples of apatite-nepheline flotation waste taken from two tailings ponds owned by Apatit which have different storage times. It is shown that the main valuable minerals in the tailings include nepheline (more than 50%), pyroxenes (5–7%) and titanite (about 4%). Three reagent regimes of reverse flotation were used to obtain nepheline concentrate: a basic regime that uses a mixture of coniferous and deciduous tall oil; a regime that uses alkyl hydroxamic acids to which distilled tall oil is added, and a regime that uses a mixture of tall oil and polyalkyl benzene sulfonic acids. The findings suggest that the regime that uses the mixture of alkyl hydroxamic and carboxylic acids with the addition of distilled tall oil provides the most efficient flotation regime that helps to selectively separate nepheline and darkcoloured minerals from the long-term storage tailings. The paper demonstrates feasibility of using apatite-nepheline processing waste (a case study of the Khibiny deposits) to produce nepheline concentrate, which serves as a material that can substitute imported non-bauxite raw materials required by aluminium industry.

Ключевые слова Russia’s Arctic zone, stockpiled beneficiation waste, apatitenepheline ores, tailings pond, nepheline, dark-coloured minerals, feldspars, reagent flotation
Библиографический список

1. Dudkin O. B., Kozyreva L. V., Pomerantseva N. G. Mineralogy of the apatite deposits situated in the Khibiny tundras. Moscow : Nauka, 1964. 237 p.
2. Marks M. A. W., Markl G. A Global review on agpaitic rocks. Earth-Science Reviews. 2017. Vol. 173. pp. 229–258.
3. Kogarco L. Chemical composition and petrogenetic implications of apatite in the Khibiny apatite-nepheleine deposits (Kola Peninsula). Minerals. 2018. Vol. 8, Iss. 11. p. 532. DOI: 10.3390/min8110532
4. Konopleva N. G., Ivanyuk G. Yu., Pakhomovskiy Ya. A., Yakovenchuk V. N., Mikhaylova Yu. A. Typomorphism of the fluorapatite found in the Khibiny alkaline massif (Kola Peninsula). Zapiski Rossiyskogo Mineralogicheskogo Obshchestva. 2013. No. 3. pp. 65–83.
5. Nikolaeva N. V., Romashev A. O., Elbendari A. M., Kucherenko E. Yu. Mineralogical features of apatite-nepheline ores and how they influence the concentration process. MIAB. 2018. No. S56. pp. 26–34.
6. Marchevskaya V. V., Korneeva U. V. Correlations between the components of the material composition of the apatite-nepheline ores found in the Khibiny massif (Kola Peninsula). Vestnik Murmanskogo gosudarstvennogo tekhnicheskogo universiteta. 2020. Vol. 23, No. 2. pp. 173–181.
7. Eskanlou A., Huang Q. Phosphatic waste clay: Origin, composition, physicochemical properties, challenges, values and possible remedies: A review. Minerals Engineering. 2021. Vol. 162. DOI: 10.1016/j.mineng.2020.106745
8. Pleshakov Yu. V., Alekseev A. I., Brylyakov Yu. E., Nikolaev A. I. Technology behind comprehensive processing of apatite-nepheline ores. Obogashchenie Rud. 2004. No. 2. pp. 15–17.
9. Kalugin A. I., Levin V. B. Priority areas in the comprehensive exploitation of the Khibiny apatite-nepheline ores and their practical implementation. Gornyi Zhurnal. 2014. No. 10. pp. 63–68.
10. Melnikov N. N., Ganza N. A., Mitrofanova G. V., Petrov A. A. Conservation and development of the man-made deposits of the Kola Mining Complex aimed at expanding the mineral base of the region. Gornyi Zhurnal. 2010. No. 9. pp. 88–92.
11. Gerasimova L. G., Nikolaev A. I., Shchukina E. S., Safonova I. V. Mineral waste generated by apatite-nepheline ore concentrators as a source of functional materials. Gornyi Zhurnal. 2020. No. 9. pp. 78–84. DOI: 10.17580/gzh.2020.09.11.
12. Elbendari A. M., Aleksandrova T. N., Nikolaeva N. V. Reagent regime optimization for apatite-nepheline ore processing. MIAB. 2020. No. 10. pp. 123–132.
13. Sokolov Yu. I. The Artic: On the problem of accumulated environmental impact. Arctic: Ecology and Economy. 2013. No. 2. pp. 18–27.
14. Sverdrup H. U., Ragnarsdottir K. V., Kocac D. Aluminium for the future: Modelling the global production, market supply, demand, price and longterm development of the global reserves. Resources Conservation and Recycling. 2015. Vol. 103. pp. 139–154.
15. Meyer F. M. Availability of bauxite reserves. Natural Resources Research. 2004. Vol. 13, Iss. 3. pp. 161–172.
16. Sizyakov V. M., Sizyakova E. V. Comprehensive processing of the Kola nepheline concentrates: Prospects. MIAB. 2015. No. S1-4. pp. 126–145.
17. Bagani M., Balomenos E., Panias D. Nepheline syenite as an alternative source for aluminum production. Minerals. 2021. Vol. 11, Iss. 7. DOI: 10.3390/min11070734.
18. Samantray J., Anand A., Dash B., Ghosh M. K. et al. Nepheline syenite — an alternative source for potassium and aluminium. Rare Metal Technology. The Minerals, Metals & Materials Series. 2019. DOI: 10.1007/978-3-030-05740-4_15.
19. Burat F., Kangal O., Onal G. An alternative mineral in the glass and ceramic industry: Nepheline syenite. Minerals Engineering. 2006. Vol. 19. Iss. 4. pp. 370–371.
20. Matveev V. A., Mayorov D. V., Velyaev Yu. O., Zakharov V. I. Comprehensive processing of nepheline ores using sulphuric acid methods. Apatity : KNTs RAN, 2017. 155 p.
21. Brylyakov Yu. E. Furthering the theory and practice of the comprehensive processing of the Khibiny apatite-nepheline ores: Dissertation … Doctor of Technical Sciences. Kirovsk, 2002. 358 p.
22. Lygach V. N., Ladygina G. V., Brylyakov Yu. E., Kostrova M. A. Optimized reverse flotation regime for better nepheline performance at Apatit’s Apatite-Nepheline Beneficiation Plant II (ANOF-2). MIAB. 2007. No. 10. pp. 365–369.
23. Markl G., Marks M. A. W., Frost B. R. On the controls of oxygen fugacity in the generation and crystallization of peralkaline rocks. Journal of Petrology. 2010. Vol. 51. pp. 1831–1847.
24. Dorfman M. D. Mineralogy of pegmatites and zones of weathering in the ijolite-urtites of the Khibiny’s Yukspor mountain. Moscow-Leningrad : Izdatelstvo AN SSSR, 1962. 168 p.
25. Priymak T. N., Zosin A. P., Fedorenko Yu. V. et al. Geochemical transformation of tailings generated as the result of the Khibiny apatitenepheline ores processing: Environmental aspects. Apatity : KNTsRAN, 1998. 51 p.
26. Sizyakov V. М., Nazarov Yu. P., Brichkin V. N., Sizyakova E. V. Processing of aged dumped tailings of apatite-nepheline ores flotation. Obogashchenie Rud. 2016. No. 2. pp. 33–39.
27. Yakovenchuk V. N., Ivanyuk G. Yu., Pakhomovskiy Ya. A., Menshikov Yu. P. Minerals of the Khibiny massif. Moscow : Zemlya, 1999. 326 p.

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