2005 - 2009 Almaty Technological University. Bachelor`s degree in "050721 - Chemical technology of organic substances".

2009 - 2011 Almaty Technological University. Master of Technical Sciences in the specialty "6N0721 - Chemical technology of organic substances".

2011 - 2014 Kazakh-British Technical University. Degree of Doctor (PhD) in the specialty "6D072100 - Chemical technology of organic substances".

2014 - Kazakh-British Technical University. Defended dissertation on the topic "Ion-exchange materials based on diglycidylaniline and benzylamine: synthesis, properties, application" for the degree of Doctor of Philosophy (PhD) at the Dissertation Council at KBTU.

AP13067631 - Development of innovative methods for selective extraction and separation of heavy rare earth metal ions based on remote interaction of macromolecular structures and molecular imprinting. Responsible executor. 2022-2024.

AP19674527 - Creation of high-molecular sorbents that allow selective sorption and separation of precious metals and related valuable components from concentrates and technological hydrometallurgical solutions. Responsible executor. 2023-2025.

AP19174288 - Development of scientific foundations for the synthesis of multifunctional ion-exchange structures of a new generation for selective sorption of heavy metals. Supervisor. 2023-2025.

1. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Nikitina A.I., Melnikov E.A., Dauletkulova N.T. Extraction of zinc ions by anionites based on epoxy derivatives of some amines and polyamines // Chemical Journal of Kazakhstan. – 2017. – No. 1. – pp. 274-279.
2. RK patent for utility model No. 2407. Complexing anionite based on glycidyl esters and polyethylene polyamine for the sorption of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Nikitina A.I., Melnikov E.A., Dauletkulova N.T. Bulletin No. 19 of 16.10.2017.
3. RK patent for utility model No. 2408. Complexing anionite based on glycidyl esters and polyethylenimine for the sorption of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Nikitina A.I., Melnikov E.A., Dauletkulova N.T. Bulletin No. 19 of 16.10.2017.
4. Kovrigina T.V., Melnikov E.A., Dauletkulova N.T., Chalov T.K., Ergozhin E.E. Sorption of copper ions by anionites based on epoxy compounds and some polyamines // Collection of abstracts of the VII All-Russian Kargin Conference "Polymers-2017". Moscow, Russia, June 13-17, 2017, Section 5. – p.659.
5. Melnikov E.A., Chalov T.K., Ergozhin E.E., Kovrigina T.V. Extraction of zinc ions by multifunctional ionites based on various oligomers // Proceedings of the XII International Conference on Chemistry and physicochemistry of oligomers. "Oligomers-2017". Chernogolovka, Russia, October 16-21, 2017. – p. 181.6.
Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A., Nikitina A.I. Study of sorption capacity of synthesized anionites based on aniline, epichlorohydrin and some polyamines with respect to molybdenum (VI) ions // Journal of Applied Chemistry. – 2017. – Vol.90, Issue 5. – pp. 635-641.
7.    Ergozhin E. E., Chalov T. K., Kovrigina T. V., Melnikov E.A., Nikitina A. I. Performance of Anion Exchangers Based on Aniline, Epichlorohydrin, and Polyamines in Sorption of Molybdenum (VI) Ions // Russian Journal of Applied Chemistry. – 2017. – Vol. 90, No. 5. – P. 769-774. DOI: https://doi.org/10.1134/S1070427217050172 
8. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Dauletkulova N.T., Melnikov E.A. Sorption of molybdenum (VI) ions by anionites based on epoxy derivatives of some aromatic amines and polyamines // Chemical Journal of Kazakhstan. – 2017. – No. 4. – pp. 131-138.
9. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov Ye.A. Semipermeable membranes for membrane technologies // Chemical Journal of Kazakhstan. – 2018. – No. 1. – pp. 67-83.
10. Ergozhin E.E., Kovrigina T.V., Chalov T.K., Tolemisova D.K., Melnikov Ye.A. New investigations in ion-exchange membranes synthesis and their modification // Chemical Journal of Kazakhstan. - 2018. – No. 1. – pp. 138-149.
11. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Sorption of molybdenum (VI) ions with new synthetic sorbents // Sorption and chromatographic processes. - 2018. – Vol. 18, No. 3. – pp. 309-315.
12. RK patent for utility model No. 2903. Multifunctional anionite for sorption of zinc (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Dauletkulova N.T., Melnikov E.A. Bulletin No. 23 of 25.06.2018.
13. RK patent for utility model No. 2905. Anionite based on glycidyl 4,4'-oxidyaniline and polyethylenimine for the extraction of molybdenum (VI) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A., Dauletkulova N.T. Bulletin No. 23 of 25.06.2018.
14. RK patent for utility model No. 2906. Complexing anionite based on glycidyl esters and polyethylene polyamine for the sorption of lead (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Nikitina A.I., Melnikov E.A., Dauletkulova N.T. Bulletin No. 23 of 25.06.2018.
15. Ergozhin E.E., Chalov T.K., Begenova B.E., Kovrigina T.V., Melnikov Ye.A. Performance of anion exchanger based on aniline, epichlorohydrin and polyethilenpolyamine in sorption of lead (II) ions // Chemical Journal of Kazakhstan. – 2018. – No. 2. – pp. 77-83.
16. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Study of sorption properties of synthesized anionites based on aromatic hydrocarbons, epichlorohydrin and polyethylene polyamine with respect to lead (II) ions // Journal of Applied Chemistry. – 2018. – Vol.91, Issue 9. – pp. 1306-1313.
17.    Ergozhin E. E., Chalov T. K., Kovrigina T. V., Mel’nikov E.A. Study of sorption properties for lead (II) ions exhibited by anion exchangers synthesized on the basis of aromatic hydrocarbons, epichlorohydrin and polyethylenimine // Russian Journal of Applied Chemistry. – 2018. – Vol. 91, No. 9. – P. 1472-1478. DOI: https://doi.org/10.1134/S1070427218090094 
18. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Extraction of molybdenum ions by polyfunctional ionites based on aromatic amines, epichlorohydrin and some polyamines // XIX International scientific and practical conference named after Professor L.P. Kulev students and young scientists "Chemistry and chemical technology in the XXI century", Tomsk, Russia, May 21-24, 2018. – pp. 442-443.
19. Melnikov E.A., Kovrigina T.V., Chalov T.K., Ergozhin E.E. Ion-exchange polymers based on benzylamine and polyethylenimine for hydrometallurgy processes // Uzbek-Kazakh Symposium "Modern problems of polymer science", Tashkent, Republic of Uzbekistan, September 28-29, 2018 – pp. 38-39.
20. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Pryatko E.Yu., Melnikov E.A. Reagentless wastewater treatment of petrochemical production with minimal discharge // Water: chemistry and ecology. - 2018. – No. 7-9. – pp.75-83.
21. RK patent for utility model No. 3551. Multifunctional anionite for sorption of lead (II) ions from acidic solutions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 4 of 01/21/2019.
22. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov Ye.A. Improving the quality of recycled water in oil-refineres by sorption and membrane methods // Chemical Journal of Kazakhstan. – 2019. – No. 2. – pp. 18-27.
23. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. The current state of the oil refining industry and the market of petroleum products in Kazakhstan // Chemical Journal of Kazakhstan. – 2019. – No. 3. – pp. 6-38.
24. Ergozhin E.E., Chalov T.K., Melnikov E.A. The state and prospects of the world oil refining industry. – Almaty: IP Beketaeva, 2019. – 562 p.
25. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Synthesis and sorption properties of multifunctional ionites based on various oligomers and polyethylenimine with respect to strontium ions // I Korshakov All-Russian conference with international participation "Polycondensation processes and polymers", Moscow, Russia, February 18-20, 2019. – P. 98.
26. Ergozhin E.E., Chalov T.K., Pryatko E.Yu., Kovrigina T.V., Melnikov E.A. Technology of drainage water purification of petrochemical production // Materials of the II International scientific and practical conference "Bulatov readings". – Krasnodar, Russia, March 31, 2019. – pp. 132-140.
27. RK patent for utility model No. 4207. Anionite for the extraction of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 31 of 02.08.2019.
28. RK patent for utility model No. 4208. Anionite for the extraction of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 31 of 02.08.2019.
29. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Ion exchange and membrane technologies for ensuring circulating water supply of petrochemical enterprises // V International Russian-Kazakh Scientific and Practical Conference "Chemical Technologies of functional materials", Novosibirsk, Russia, May 16-18, 2019. – pp. 113-115.
30. Kovrigina T.V., Ergozhin E.E., Chalov T.K., Khakimbolatova K.H., Melnikov E.A. Baromembrane and electrochemical technologies for desalination of brackish underground and industrial wastewater treatment // International scientific and practical conference "Modern methods of field development with hard-to-recover reserves and unconventional reservoirs", Atyrau, Kazakhstan, September 5-6, 2019. – pp. 189-197. 
31. RK patent for utility model No. 3971. Anionite based on aniline, epichlorohydrin and polyethylene polyamine for the extraction of molybdenum (VI) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 20 of 17.05.2019.
32. Ergozhin E.E., Chalov T.K., Melnikov E.A. Sorption extraction of palladium based on various organic compounds // Chemical Journal of Kazakhstan. – 2019. – No. 4. – pp. 92-98.
33. Ergozhin E.E., Chalov T.K., Tskhai A.A., Kovrigina T.V., Melnikov E.A. Innovative membrane technologies for increasing the multiplicity of existing circulating water supply systems of oil refineries // Water: chemistry and ecology. – 2019. – № 10-12. – pp.96-92.
34. Zainullina A.Sh., Melnikov E.A., Manashev D.A. Ion-exchange materials based on diglidylaniline and benzylamine: synthesis, properties, application // Bulletin of the Almaty Technological University. – 2019. – No. 4. – pp. 100-104.
35. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Begenova B.E., Melnikov Ye.A. Baromembrane technologies for purification of industrial wastes, using pulse water treatment // Bulletin of the Karaganda University. Chemistry series. – 2020. – № 2 (98). – P. 83-91. DOI: https://doi.org/10.31489/2020Ch2/83-91
36. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Begenova B.E., Melnikov E.A. Physico-chemical and sorption properties of anionite based on aniline, epichlorohydrin and polyethylene polyamine with respect to strontium ions (II) // Chemical Journal of Kazakhstan. – 2020. – No. 3. – pp. 10-21.
37. RK patent for utility model No. 5313. Multifunctional anionite for sorption of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 40 of 09.10.2020.
38. Patent of the Republic of Kazakhstan for utility model No. 5314. Anionite for the extraction of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 40 of 09.10.2020.
39. RK patent for utility model No. 5315. Sorbent for the extraction of strontium (II) ions / Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov E.A. Bulletin No. 40 of 09.10.2020.
40. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Melnikov Ye.A. Physic-chemical and sorption properties of anionites based on aromatic amines, epichlorohydrin and polyethylenimine with regard to strontium (II) ions // Journal of Environmental Treatment Techniques. – 2020. – Vol. 8, Iss. 4. – P. 1568-1573. DOI: https://doi.org/10.47277/JETT/1573
41. Melnikov E.A., Kovrigina T.V., Chalov T.K., Ergozhin E.E. Extraction of strontium ions by multifunctional ionites based on epoxyamines // VIII All–Russian Kargin Conference "Polymers-2020, Moscow, Russia, November 9-13, 2020. – p. 546.
42. Ergozhin E.E., Tskhai A.A., Chalov T.K., Kovrigina T.V., Melnikov E.A. Improving the quality of recycled water by pulsed electromagnetic treatment // Bulletin of the oil and gas industry of Kazakhstan. – 2021. – № 1 (6). – Pp
.75-81. 43. Ergozhin E.E., Chalov T.K., Khakimbolatova K.H., Kovrigina T.V., Melnikov E.A. Investigation of the efficiency of reagentless electromagnetic treatment of source water at petrochemical enterprises // Chemical Journal of Kazakhstan. – 2021. – No. 1. – p.5-23.
44. Ergozhin E.E., Chalov T.K., Kovrigina T.V., Khakimbolatova K.H., Melnikov E.A. Studying the sorption capacity of multifunctional anionites with respect to iron ions // Conference "Fine organic synthesis-2021", Almaty, Kazakhstan, September 3, 2021. – pp. 27-28.

45. Melnikov Ye.A., Chalov T.K., Ergozhin E.E. Sorption of chromium (VI) ions by anionites based on epoxidized derivatives of aniline and benzylamine // Proceedings of the International Scientific and Practical Conference "Trends, prospects and innovative approaches to the development of chemical science, production and education in the context of globalization", Almaty, Republic of Kazakhstan, November 3, 2021 G. – pp. 172-175.
46. Chalov T.K., Kovrigina T.V., Begenova B.E., Melnikov Ye.A., Khakimbolatova K.Kh Sorption of chromium (VI) ions by new anionites // Proceedings of the X International Scientific and Practical Conference "Actual problems of mathematics and natural sciences", Petropavlovsk–Barnaul–Surgut–Novosibirsk, Republic of Kazakhstan–Russian Federation, February 4, 2022 – pp. 7-10.
47. Begenova B.E., Chalov T.K., Kovrigina T.V., Khakimbolatova K.H., Melnikov Ye.A., Ostafeychuk N.V. Anilinin glycidyl tuyndysy negizindegi cation almastyrgyshtar // Proceedings of the X International Scientific and practical Conference "Actual problems of mathematics and natural sciences", Petropavlovsk–Barnaul–Surgut–Novosibirsk, Republic of Kazakhstan–Russian Federation, February 4, 2022 – pp. 34-37.
48. Ergozhin E.E., Chalov T.K., Khakimbolatova K.Kh ., Kovrigina T.V., Melnikov Ye.A. Study of sorption of transition metal ions on multifunctional macro-lattice anion exchangers // Materials of the Republican scientific and practical conference "Innovative technologies for processing mineral and man-made raw materials of chemical, metallurgical, petrochemical industries and production construction materials", Tashkent, Republic of Uzbekistan, May 12-14, 2022 – pp. 748-749.
49. RK patent for utility model No. 7189. Ionite for the extraction of cadmium (II) ions / Melnikov E.A., Kovrigina T.V., Chalov T.K., Khakimbolatova K.H. Bulletin No. 23 dated 06/10/2022.
50. RK patent for utility model No. 7208. Anionite for the extraction of cadmium (II) ions / Melnikov E.A., Khakimbolatova K.H., Chalov T.K., Kovrigina T.V. Bulletin No. 24 dated 06/17/2022.
51. Kondaurov R., Melnikov Y., Agibayeva L. Application of Molecular Imprinting for Creation of Highly Selective Sorbents for Extraction and Separation of Rare-Earth Elements // Polymers. – 2023. – Vol. 15. – 846. https://doi.org/10.3390/polym15040846 
52. Melnikov Y., Kondaurov R., Agibayeva L. Effect of Lanthanum Sorption on the Behavior of Rarely Crosslinked Acidic and Basic Polymer Hydrogels during Remote Interaction // Polymers. – 2023. – Vol. 15. – 1420. https://doi.org/10.3390/polym15061420
53. Kondaurov R.G., Melnikov E.A., Agibaeva L.E. Features of the use of macromolecular compounds in the oil industry // Oil and gas. – 2023. – No. 4. – pp. 154-175. https://doi.org/10.37878/2708-0080/2023-4.12
54. RK patent for utility model No. 8195. Highly selective polymer with molecular imprints for the extraction of samarium (III) ions / Melnikov E.A., Kondaurov R.G., Agibaeva L.E. Bulletin No. 25 dated 06/23/2023.
55. RK patent for utility model No. 9129. A method for producing foamed polystyrene / Melnikov E.A., Kondaurov R.G., Agibaeva L.E., Rafikova H.S. Bulletin No. 20 dated 05/17/2024.
56. RK patent for utility model No. 9189. Multifunctional anionite for the sorption of cadmium ions / Melnikov E.A., Kondaurov R.G., Agibaeva L.E. Bulletin No. 22 dated 05/31/2024.
57. RK patent for utility model No. 9190. Highly selective polymer with molecular imprints for sorption of gold (III) ions / Melnikov E.A., Agibaeva L.E., Kondaurov R.G. Bulletin No. 22 dated 05/31/2024.