Selective Attachment of Luminophore-Bearing Emulsion at Diamonds—Mechanism Analysis and Mode Selection

Abstract

The authors present an efficient modification method of X-ray fluorescence separation with mineral and organic luminophores used to adjust spectral and kinetic characteristics of anomalously luminescent diamonds. The mechanism of attachment of luminophores at diamonds and hydrophobic minerals is proved, including interaction between the organic component of emulsions and the hydrophobic surface of a treated object and the concentration of insoluble luminophore grains at the organic and water interface. Selective attachment of the luminophore-bearing organic phase of emulsion at the diamond surface is achieved owing to phosphatic dispersing agents. Tri-sodium phosphate and sodium hexametaphosphate added to emulsion reduce attachment of the luminophore-bearing organic phase at the surface of kimberlite minerals. It is shown that phosphate concentration of 1.0–1.5 g/l modifies and stabilizes spectral and kinematic parameters of kimberlite mineral on the level of initial values. This mode maintains the spectral and kinematic characteristics of anomalously luminescent diamonds at the wanted level to ensure extraction of diamonds to concentrate.

This is a preview of subscription content, log in to check access.

References

  1. 1.

    Monastyrskii, V.F., Makalin, I.A., Novikov, V.V., Plotnikova, S.P., and Nikiforova, T.M., Enhanced Efficiency of X-ray Fluorescent Separation of Diamond-Bearing Raw Material, Nauka Obrazov., 2017, no. 3, pp. 86–90.

  2. 2.

    Makalin, I.A., Distribution Laws of X-Ray Luminescence Characteristics of Diamond-Bearing Raw Material, Synopsis of Candidate of Engineering Sciences Thesis, Yekaterinburg, 2013.

  3. 3.

    Martynovich, E.F. and Mirobov, V.P., X-Ray Luminescence of Diamonds and Applications in the Diamond Industry in Russia, Izv. vuzov, 2009.

  4. 4.

    Chanturia, V.A., Dvoichenkova G.P., Morozov, V.V., Koval’chuk, O.E., Podkamennyi, O.E., and Yakovlev, V.N., Experimental Justification of Luminophore Composition for Identification of Diamonds in X-Ray Luminescence Separation of Kimberlite Ore, J. Min. Sci., 2018, vol. 54, no. 3, pp. 458–465.

    Article  Google Scholar 

  5. 5.

    Chanturia, V.A., Dvoichenkova, G.P., Morozov, V.V., Yakovlev, V.N., Koval’chuk, O.E., and Podkamennyi, O.E., Experimental Substantiation of Luminophore-Containing Compositions for Extraction of Nonluminescent Diamonds, J. Min. Sci., 2019, vol. 55, no. 1, pp. 116–123.

    Article  Google Scholar 

  6. 6.

    Smirnova, T.D., Metody lyuminestsentnogo analiza: metod. ukazaniya (Luminescent Analysis Methods: Instructional Guidance), Saratov: SGU, 2012.

    Google Scholar 

  7. 7.

    Menshikova, A.Yu., Pankova, G.A., Evseeva, T.G., Shabsels, B.M., and Shevchenko, N.N. Luminophore-Containing Polymer Particles: Synthesis and Optical Properties of Thin Films on Their Basis, Nanotechnologies in Russia, 2012, vol. 7, no. 3–4, pp. 188–195.

    Google Scholar 

  8. 8.

    Pron, A., Gawrys, P., Zagorska, M., Djurado, D., and Demadrille, R., Electroactive Materials for Organic Electronics: Preparation Strategies, Structural Aspects And Characterization Techniques, Chem. Soc. Rev., 2010, vol. 39, no. 7, pp. 2577–2632.

    Article  Google Scholar 

  9. 9.

    Koval’chuk, O.E., Dvoichenkova, G.P., and Yakovlev, V.N., Extraction of Subnormally Luminescent Diamonds through Modification of Their Surface Properties, Problems and Prospects of Efficient Mineral processing in the 21st Century: Plaksin’s Lectures 2019, Irkutsk, 2019, pp. 253–255.

  10. 10.

    Vladimirov, E.N., Kazakov, L.V., and Kolosova, N.P., Improvement of Diamond Separator Performance through Digital Processing of Signals, Sovr. Elektronika, 2008, no. 2, pp. 64–69.

  11. 11.

    https://micromed.nt-rt.ru/images/manuals/3%20LYuM.pdf

  12. 12.

    http://ovespb.ru/catalog/item/Separator-POLYuS-M/

  13. 13.

    Chanturiya, V.A., Dvoychenkova, G.P., and Kovalchuk, O. Ye., Mechanism of Fine Dispersed Mineral Formation on the Surface Of Diamonds and Their Removal by Water System Electrolysis Products, IMPC 2016: 28th Int. Mineral Processing Congress Proceedings, ISBN: 978-1-926872-29–2.

  14. 14.

    Makhrachev, A.F., Dvoichenkova, G.P., and Lezova, S.P., Analysis and Optimization of Compositions of Compound Collectors for Frother Separation of Diamonds, Mining Informational and Analytical Bulletin, 2018, no.11, pp. 178–185.

  15. 15.

    Kuvykin, V.I. and Kuvykina, E.V., Viscosity of a Mix of Hydrocarbons, Estestv. Matem. Nauki v Sovr. Mire, 2016, no. 1(36), pp. 46–51.

  16. 16.

    Verkhoturov, M.V., Amelin, S.A., and Konnova, N.I., Processing of Diamonds, Mezhd. Zh. Eksperiment. Obrazov., 2012, no. 2, pp. 61.

  17. 17.

    Zhang, J., Kouznetsov, D., and Yub, M., Improving the Separation of Diamond from Gangue Minerals, Min. Eng., 2012, vol. 36–38, pp. 168–171.

    Article  Google Scholar 

  18. 18.

    Pestriak, I., Morozov, V., and Erdenetuya, O., Modeling and Development of Recycled Water Conditioning of Copper-Molybdenum Ores Processing, Int. J. of Min. Sci. and Technology, 2019, vol. 29, pp. 313–317.

    Article  Google Scholar 

  19. 19.

    Bragina, V.I. and Bragin, V.I., Tekhnologiya obogashcheniya poleznykh iskopaemykh (Mineral Processing Technology), Krasnoyarsk: SFU, 2011.

    Google Scholar 

  20. 20.

    Vladimirov, E.N., Kazakov, L.V., Pakhomov, M.O., Raizman, V.Sh., and Shlyufman, E.M., RF patent no. 2271254, Byull. Izobret., 2006, no. 7.

Download references

Funding

The study was supported by the Presidium of the Russian Federation, Basic Research Program No. 1–48 under the guidance of Academician of the Russian Academy of Sciences Chanturia V. A.

Author information

Affiliations

Authors

Corresponding author

Correspondence to G. P. Dvoichenkova.

Additional information

Russian Text © The Author(s), 2020, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2020, No. 1, pp. 104–113.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Chanturia, V.A., Dvoichenkova, G.P., Morozov, V.V. et al. Selective Attachment of Luminophore-Bearing Emulsion at Diamonds—Mechanism Analysis and Mode Selection. J Min Sci 56, 96–103 (2020). https://doi.org/10.1134/S1062739120016527

Download citation

Keywords

  • Diamond
  • minerals
  • kimberlite
  • emulsion
  • luminophore
  • extraction
  • luminescence
  • separation
  • spectral and kinematic characteristics