Bibliography: 1. Chanturiya V. A., Vaisberg L. A., Kozlov A. P. Top-priority areas of research into mineral processing. Obogashchenie rud. 2014, no. 2, pp. 3—9. [In Russ].
2. Oleinik T. A., Sklyar L. V., Oleinik M. O., Kushniruk N. V. Features of apatite flotation from Gare Aghaj ore. Obogashchenie poleznykh iskopaemykh. 2018, no. 71 (112), pp. 69—80. [In Russ].
3. Mukhina T. N., Marchevskaya V. V., Kalugin A. I. Improvement of flotation technology for apatite recovery from apatite–nepheline ore of the Khibiny Massif. Gornyi Zhurnal. 2020, no. 5, pp. 34—39. [In Russ].
4. Dudkin O. B. Mechanism of film and leather coat formation on Khibiny apatite under conditions of hypergenesis. Zapiski Vsesoyuznogo mineralogicheskogo obshchestva. 1960, part 89, no. 5, pp. 572—576. [In Russ].
5. Dorfman M. D. Mineralogiya pegmatitov i zon vyvetrivaniya v iiolit-urtitakh gory Yukspor Khibinskogo massiva [Mineralogy of pegmatite and weathering zones in ijolite–urtite regions of the Yukspor Mountain in the Khibiny Massif], Moscow-Leningrad, Izd-vo Akademii nauk SSSR, 1962, 168 p.
6. Novye Khibinskie apatitovye mestorozhdeniya. Pod red. E. A. Kameneva, D. A. Mineeva D. A. [New apatite deposits in Khibiny. Kamenev E. A., Mineev D. A. (Eds.)], Moscow, Nedra, 1982, 182 p.
7. Korneeva U. V., Marchevskaya V. V. Processing problems of apatite–nepheline ore from Khibiny. Budushchee Arktiki nachinaetsya zdes'. Sbornik materialov II Vserossiyskoy nauchnoprakticheskoy konferentsii s mezhdunarodnym uchastiem [The Future of the Arctic Starts Here. Proceedings of II All-Russian Conference with Foreign Participation], Apatity, 2018, pp. 53—62. [In Russ].
8. Barskiy L. A., Zinov'ev Yu. Z., Kameneva E. E. Analysis of flotation properties of morphological varieties in apatite–nepheline ore in the Khibiny deposits. Pererabotka okislennykh rud [Oxidized ore processing], Moscow, Nauka, 1985, pp. 211—216.
9. Pekov I. V., Turchkova A. G., Lovskaya E. V., Chukanov N. V. Tseolity shchelochnykh massivov [Zeolite in alkaline rock masses], Moscow, Eksmo, 2004, 168 p.
10. Popov V. G., Abdrakhmanov R. F. The introduction into exchange and adsorption concept of ground water origination: Structure and ion-exchange properties of clay materials, process flow kinetics. Geologicheskiy sbornik. 2014, no. 11, pp. 233—242. [In Russ].
11. Elbendary A., Aleksandrova T., Nikolaeva N. Influence of operatingparameters on the flotation of the Khibiny Apatite-Nepheline Deposits. Journal of Materials Research and Technology. 2019, vol. 8, no. 6, pp. 5080—5090.
12. Sis H., Chander S. Reagents used in flotation of phosphate ores, a critical review. Minerals Engineering, 2003, vol. 16, pp. 577—585.
13. Cao Q. B., Cheng J. H., Wen S. M., Li C. X., Bai S. J., Liu D. A mixed collector system for phosphate flotation. Minerals Engineering. 2015, vol. 78, pp. 114–121.
14. Chernousenko E. V., Perunkova T. N., Artem'ev A. V., Mitrofanova G. V. Improvement of flotation technology for ore of the Kola Peninsula. Gornyi Zhurnal. 2020, no. 9, pp. 66—72. [In Russ].
15. Lavrinenko A. A., Shrader E. A., Kharchikov A. N., Kunilova I. V. Selectivity assessment of apatite flotation from complex ore. Innovatsionnye protsessy kompleksnoi i glubokoi pererabotki mineral'nogo syr'ya (Plaksinskie chteniya 2013). Materialy Mezhdunarodnogo soveshchaniya [Innovations in Integrated Processing and Deeper Conversion of Mineral Raw Materials. Plaksin’s Lectures 2013—International Conference Proceedings], Tomsk, 2013, pp. 366—372. [In Russ].
16. Clapperton A., Bazin C., Downey D., Marois J.-S. Production of a phosphate concentrate from the tailings of a niobium ore concentrator. Minerals. 2020, vol. 10, no. 8, pp. 692. DOI: 10.3390/min10080692.
17. Mitrofanova G. V., Ivanova V. A. Surface active properties of monoalkyl derivatives of amber acid. Zhurnal prikladnoy khimii. 2011, vol. 84, no. 3, pp. 369—375. [In Russ].
18. Karlkvist T., Patra A., Kota H. R., Bordes R. Flotation selectivity of novel alkyl dicarboxylate reagents for apatite-calcite separation. Journal of Colloid and Interface Science. 2015, vol. 445, pp. 40—47.
19. Lavrinenko A. A., Shrader E. A., Kharchikov A. N., Kunilova I. V. Floatability of apatite from baddeleyite–apatite–magnetite ore. Fiziko-tekhnicheskiye problemy razrabotki poleznykh iskopayemykh. 2013, no. 5, pp. 157—165. [In Russ].
20. Kostrova M. A., Brylyakov Yu.E., Shishkin S. P., Klinberg A., Gorlovskiy S. I. Design of reagent regimes fro apatite flotation in cold pulp. Gornoe delo v Arktike, Trudy 8-go Mezhdunarodnogo simpoziuma [Mining in the Arctic. Proceedings of the 8th International Symposium], Tomsk, 2005, pp. 282—283.
21. Aleinikov N. A., Shakhmatova N.Yu., Maslova N. E., Kaupinen M. V. Processing of phosphate ore from weathered layer. Kompleksnoe obogashchenie fosforsoderzhashchikh rud [Integrated Processing of Phosphorus-Bearing Ore], Apatity, 1978, pp. 88—98.
22. Aleynikov N. A., Ivanova V. A. Synthesis and application of new flotation agents in ore processing. Obogashchenie rud i problema bezotkhodnoi tekhnologii [Ore Processing and NonWaste Technology Problem], Leningrad, Nauka, 1980, pp. 163—183.
23. Aleynikov N. A., Grebnev A. N., Kaytmazova T. I., Makarov A. M. Flotation of apatite–nepheline ore in return water with monoethanolamides of synthetic carboxylic acids. Obogashchenie rud. 1982, no. 1, pp. 14—16. [In Russ].
24. Gershenkop A. Sh., Mukhina T. N., Artem'ev A. V. Features of mineral composition of apatite–nepheline ore from the Oleny Ruchei deposit and the impact on the ore processing efficiency. Obogashchenie rud. 2014, no. 3, pp. 33—35. [In Russ].