PROSPECTS FOR THE INTEGRATED USE OF THE LOPARITE ORE TAILINGS

The article considers the possibility to recover nepheline, loparite, and apatite concentrates from the loparite ore tailings. Reverse flotation of both stored and current tailings yielded nepheline concentrates containing 27.3% and 27.7% Al2O3 with a recovery of 77.8% and 79.9%, respectively. The proposed closed-cycle flotation scheme for current tailings allowed increasing the Al2O3 recovery into concentrate by 3.8%. Improvement in concentrate quality is achieved using electromagnetic separation (28.0—28.3% Al2O3) or direct flotation in sodium silicofluoride medium (29.6% Al2O3). During the flotation of gravity tailings, a loparite concentrate was produced containing Nb2O5 with a recovery of approximately 50%. Beneficiation of stored tailings yielded an apatite product containing about 15% P2O5 with a recovery of approximately 78%. The quality of the apatite product can be improved by introducing cleaning operations.

1. Resolution of the Government of the Murmansk Region “On approval of the list of objects of accumulated environmental damage in the territory of the Murmansk Region” dated March 29, 2013 no. 139-PP/5. Available at: https://mpr.gov-murman.ru/files/139-%D0%9F%D0%9F-5_26%2003%202014.pdf. (In Russian).

2. Mel’nikov N. N., Busyrev V. M., Churkin O. E. Assessment of the value of reserves and the efficiency of using mining wastes. Gornyi informatsionno-analiticheskii byulleten’ [Mining informational and analytical bulletin], 2018, no. 8, pp. 200—207. (In Russian).

3. Rational use of secondary mineral resources in the context of environmentalization and the implementation of the best available technologies. Ed. by Professor F. D. Larichkin, Professor V. A. Knysh. Apatity, FRS KSC RAS, 2019, 252 p. (In Russian).

4. Chanturiya V. A. The role of innovative technologies of enrichment and deep processing of mineral raw materials in the development of the mineral and raw material base of Russia. Sovremennye problemy kompleksnoi i glubokoi pererabotki prirodnogo i netraditsionnogo mineral’nogo syr’ya [Modern problems of complex and deep processing of natural and non-traditional raw materials (Plaksinsky readings-2023)]. Moscow, 2023, pp. 3—6. (In Russian).

5. Dagwar P. P., Iqbal S. S., Dutta D. Sustainable recovery of rare Earth elements from industrial waste: A path to circular economy and environmental health. Waste Management Bull., 2025, vol. 3, pp. 373—390. Available at: https://doi.org/10.1016/j.wmb.2025.02.004.

6. Temnov A. V., Byhovskij L. Z. Rare metals from mining wastes and secondary raw materials. Mineral’nye resursy Rossii. Ekonomika i upravlenie [Mineral Resources of Russia. Economics and Management], 2021, no. 1-6, pp. 6—13. (In Russian).

7. Nechaev A. V., Polyakov E. G. Current and prospective balance of production and consumption of REE in Russia. Mineral’nye resursy Rossii. Ekonomika i upravlenie [Mineral Resources of Russia. Economics and Management], 2020, no. 2, pp. 49—53. (In Russian).

8. Solov’eva V. M., Cherepovicyn A. E. Organization and economic models of rare earth industrial complexes′ development: Russian and foreign experience. Bulletin of the South-Russian State Technical University (NPI), Series Socio-Economic Sciences, 2021, vol. 14, no. 1, pp. 188—202. Available at: https://doi.org/10.17213/2075-2067-2021-1-188-202.

9. Balaram V. Rare earth elements: A review of applications, occurrence, exploration, analysis, recycling, and environmental impact. Geoscience Frontiers, 2019, vol. 10, iss. 4, pp. 1285—1303. Available at: https://doi.org/10.1016/j.gsf.2018.12.005.

10. Lavrov S. N. Does Russia need its own raw material base for titanium production? Mineral’nye resursy Rossii. Ekonomika i upravlenie [Mineral Resources of Russia. Economics and Management], 2024, no. 6, pp. 50—59. (In Russian).

11. Xu J., Ma H., Yang M., Shen Z., Zhang B., Rui T., Zhao R. Experimental and numerical investigations on the microstructural features and mechanical properties of explosive welded niobium-steel interface. Mater. Des., 2022, vol. 218, p. 110716. Available at: https://dx.doi.org/10.2139/ssrn.4077524.

12. Aliasghari S., Skeldo . P., Zhou X., Gholinia A., Zhang X., Valizadeh R., Pira C., Junginger T., Burt G., Withers P. J. X-ray computed tomographic and focused ion beam/electron microscopic investigation of coating defects in niobium-coated copper superconducting radio-frequency cavities. Mater. Chem. Phys., 2021, vol. 273, p. 125062. Available at: https://doi.org/10.1016/j.matchemphys.2021.125062.

13. Maksimova V. V., Krasavceva E. A., Savchenko E. E., Ikkonen P. V., Elizarova I. R., Masloboev V. A., Makarov D. V. Study of the composition and properties of the beneficiation tailings of currently produced loparite ores. Zapiski gornogo instituta [Journal of Mining institute], 2022, vol. 256, pp. 642—650. DOI: 10.31897/PMI.2022.88. (In Russian).

14. Krasavceva E. A., Makarov D. V., Maksimova V. V., Selivanova E. A., Ikkonen P. V. Studies of properties and composition of loparite ore mill tailings. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh [Journal of Mining Sciences], 2021, vol. 3, pp. 190—198. (In Russian). DOI: 15.15372/FTPRPI20210318.

15. Rakaev A. I., Chernousenko E. V., Ruhlenko E. D., Alekseeva S. A. Production of nepheline concentrate from final tailings of the Lovozyorsky mining complex concentrating plants. Obogashchenie rud, 2007, no. 1, pp. 8—11. (In Russian).

16. Sizyakov V. M., Sizyakova E. V. Prospects for the development of complex processing of Kola nepheline concentrates. Gornyi informatsionno-analiticheskii byulleten’ [Mining informational and analytical bulletin], 2015, no. S 1—4, pp. 126—145. (In Russian).

17. Bagani M., Balomenos E., Panias D. Nepheline syenite as an alternative source for aluminum production. Minerals. 2021, vol. 11, no. 7. p. 734. Available at: http://dx.doi.org/10.3390/min11070734.

18. Samantray J., Anand A., Dash B., Ghosh M. K., Behera A. K. Nepheline Syenite — An Alternative Source for Potassium and Aluminium. Rare Metal Technology, 2019, ch. 15, pp. 145—159. Available at: https://doi.org/10.1007/978-3-030-05740-4_15.

19. Gurevich B. I., Kalinkina E. V., Kalinkin A. M. Binding properties of mechanically activated nepheline containing mining waste. Minerals, 2020, vol. 10, no. 1. Available at: http://dx.doi.org/10.3390/min10010048.

20. Levin B. V., Lisyuk B. S., Lucenko K. L., Lytkin A. A., Svitcov A. A., Stankevich V. G., Mamulat S. L. Nepheline concentrates and sludges are unique raw materials for geopolymer materials and structures. Mir dorog. Ekologiya. Novye tekhnologii [The world of roads. Ecology. New technologies], 2020, no. 129—130, pp. 91—100. (In Russian).

21. Mahran G., Hussin A., Abdelhaffez G. Nepheline syenite beneficiation for glass and ceramics industries, Afinidad. J. Chem. Eng. Theoretical Appl. Chem., 2022, vol. 79, no. 597, pp. 533—538. DOI: 10.55815/408489.

22. Pleshakov Yu. V., Alekseev A. I., Brylyakov Yu. E., Nikolaev A. I. Technology for the complex beneficiation of apatite-nepheline ores. Obogashchenie rud, 2004, no. 2, pp. 15—17. (In Russian).

23. Lygach B. H., Ladygina G. V., Brylyakov Yu. E., Kostrova M. A. Increasing the efficiency of nepheline production at ANOF-II of the JSC “Apatit” by improving the reagent regime of reverse flotation of nepheline. Gornyi informatsionno-analiticheskii byulleten’ [Mining informational and analytical bulletin], 2007, no. 10, pp. 365—369. (In Russian).

24. Sizyakov V. M., Kawalla R., Brichkin V. N. Geochemical aspects of the mining and processing of the large-tonne mineral resources of the hibinian alkaline massif. Geochemistry, 2019, vol. 80, no. 3, p. 125506. Available at: https://doi.org/10.1016/j.chemer.2019.04.002.

25. Mitrofanova G. V., Marchevskaya V. V., Perunkova T. N. Improving the regimes of nepheline flotation from the stored waste of apatite-nepheline ore processing at the Khibiny deposits. Tsvetnye metally [Non-ferrous Metals], 2022, no. 8, pp. 8—14. DOI: 10.17580/tsm.2022.08.01. (In Russian).

26. Shapovalov N. A., Gorodov A. I., Krainiy A. A., Krainiaia E. V. The influence of mixed cationic and anionic surfactants on the flotation of nepheline. J. Eng. Appl. Sci., 2019, vol. 14, no. 16, pp. 5719—5724. Available at: https://doi.org/10.36478/jeasci.2019.5719.5724.

27. Ratobyl’skaya L. D., Kozhevnikov O. A., Bojko N. N., Lygach V. N., Kajtmazova T. I., Maslov A. D. Selective Flotation of Nepheline from Tailings of Apatite Production. Kombinirovannye metody pri kompleksnom obogashchenii poleznykh iskopaemykh [Combined methods for complex mineral processing]. Leningrad, Nauka, 1977, pp. 120—126. (In Russian).

28. Bogdanov O. S., Mihajlova N. S., Yanis N. A., Bondarenko O. P., Budnikova N. V. Ways to improve the quality of nepheline concentrate at the Apatit plant. Obogashchenie rud, 1976, no. 4, pp. 8—12. (In Russian).

29. Aleksandrova T. N., Elbendari A. M. Increasing the efficiency of phosphate ore processing using flotation method. Zapiski gornogo instituta [Journal of Mining institute], 2021, vol. 248, pp. 260—271. DOI: 10.31897/PMI.2021.2.1013. (In Russian).

30. Sentemova V. A. The technology of nepheline concentrate obtaining. Gornyi zhurnal, 2011, no. 2, pp. 39—42. (In Russian).

31. Melent’ev G. B. Rare-Earth Resource for Innovative Development of Russian Production: Status and Prospects. Oboronnyi kompleks — nauchno-tekhnicheskomu progressu Rossii [Defence industry achievements — Russian & technical progress], 2013, no. 3, pp. 82—94. (In Russian).

32. Rakaev A. I., Borisov Yu. M., Chernousenko E. V., Morozova T. A., Alekseeva S. A. Development of beneficiation complex of Lavozersky mining and concentrating complex on the base of innovative solutions of ore preparation and beneficiation. Gornyi zhurnal, 2010, no. 9, pp. 81—84. (In Russian).