КРАТКИЙ ОБЗОР МЕТОДОВ МИКРОВОЛНОВОГО ВЫЩЕЛАЧИВАНИЯ ЗОЛО-ШЛАКОВЫХ ОТХОДОВ С ИСПОЛЬЗОВАНИЕМ АМОРФНОГО ГРАФИТА
https://doi.org/10.53360/2788-7995-2026-2(22)-69
Аннотация
В настоящее время переработка золошлаковых отходов, образующихся на тепловых электростанциях, и эффективное извлечение из них ценных металлов, таких как алюминий, является одной из важных экологических и экономических задач. Традиционные методы извлечения алюминия – кислотное и щелочное выщелачивание, высокотемпературная термическая обработка, пирометаллургические процессы и методы органической экстракции – характеризуются высоким энергопотреблением, негативным воздействием на окружающую среду и низкой экономической эффективностью.
В данном обзорном исследовании проведён комплексный анализ современных технологий извлечения алюминия из промышленных золошлаковых отходов с сравнительной оценкой их эффективности, энергетических затрат и технологических ограничений. Особое внимание уделено технологии микроволнового выщелачивания с использованием аморфного графита, а также систематизированы её преимущества по сравнению с традиционными методами.
Результаты литературного обзора показывают, что микроволновое выщелачивание является перспективным направлением благодаря энергоэффективности, ускорению кинетики реакций, повышению степени перехода алюминия в раствор и снижению экологической нагрузки. Кроме того, в работе определены основные научные преимущества данной технологии и ключевые направления её дальнейшего развития, включая глубину проникновения микроволн и оптимизацию режимов мощности и температуры.
Таким образом, данная обзорная работа систематизирует научные основы применения микроволновых технологий в переработке золошлаковых отходов и способствует разработке новых экологически безопасных методов эффективного извлечения алюминия из отходов.
Об авторах
Н. БаатарбекКазахстан
Нурсауле Баатарбек – студент PhD 3 курса факультета химии и химической технологии,
г. Алматы, проспект аль-Фараби, 71
К. Камунур
Казахстан
Қастер Камунур – доктор PhD, ведущий научный сотрудник,
г. Алматы, проспект аль-Фараби, 71;
г. Алматы, ул. Богенбай батыра, 172
Ю. Онуральп
Турция
Ючел Онеральп – профессор,
Ayazağa-Maslak, 34467 Sarıyer, Стамбул
Список литературы
1. Processing of Ash and Slag Waste from Coal-Fired Thermal Power Plants and Extraction of Commercial Products from the Waste / L.M. Delitsyn et al //Thermal Engineering. – 2025. – № 72(3). – P. 203-220. https://doi.org/10.1134/S0040601524700836.
2. Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma / Z. Bolatova et al // Materials. – 2022. – № 15(22). – P. 8134. https://doi.org/10.3390/ma15228134.
3. Ash waste utilization via direct current arc plasma with production of SiC and AlN / A.Y. Pak et al // Waste and Biomass Valorization. 2021. – № 12(10). – P. 5689-5700. https://doi.org/10.1007/s12649-021-01399-w.
4. Transmutation of coal fly ash with conceivable applications / A.R. Gollakota // Journal of Innovative Technology. – 2020. – № 2(1). – P. 35-40. http://doi.org/10.29424/JIT.202003_2(1).0005.
5. A review on the utilization of fly ash / M. Ahmaruzzaman // Prog. Energy Combust. Sci. – 2010.– № 36. – P. 327-363. https://doi.org/10.1016/j.pecs.2009.11.003.
6. A review on fly ash utilization / M. Mathapati et al // Materials Today: Proceedings. – 2022. – № 50. – P. 1535-1540. https://doi.org/10.1016/j.matpr.2021.09.106.
7. A cleaner approach for recovering Al and Ti from coal fly ash via microwave-assisted baking, leaching, and precipitation / Y. Ma et al // Hydrometallurgy. – 2021. https://doi.org/10.1016/j.hydromet.2021.105754.
8. Extraction of aluminum and iron from boiler slag by sulfuric acid / J. Li et al // Wuhan University Journal of Natural Sciences. – 2007. – № 12(3). – P. 541-547. https://doi.org/10.1007/s11859-006- 0071-8.
9. Effect of microwave heating on the pressure leaching of vanadium from converter slag / L. Tian et al // Hydrometallurgy. – 2019. – № 184. – P. 45-54.
10. Fly ash treatment via conventional and microwave-assisted organic acid leaching: kinetics and life cycle assessment / A. Hamidi et al // Environmental Science and Pollution Research. – 2024. – № 31(20). – P. 30039-30058.
11. Microwave-induced modifications in electric arc furnace slag: An attempt to enhance aqueous dissolution / R. Kurtulus et al // Hydrometallurgy. – 2025. – № 234. – P.106475.
12. A review of graphene research and its outputs: waste carbon source and synthesis technique. Green Infrastructure / M.Z. Nurfazianawatie et al // Materials and Sustainable Management. – 2025. – P. 205-225.
13. The microwave absorption properties of residual carbon from coal gasification fine slag / S. Gao et al // Fuel – 2021. – № 290. – P. 120050.
14. Das D. A review of coal fly ash utilization to save the environment / D. Das, P.K. Rout // Water, Air, & Soil Pollution. – 2023. – № 234(2). – P. 128.
15. An assessment of physicochemical and adsorption properties / J. Mokrzycki et al // Materials. – 2023. – № 16(6). – P. 2142. https://doi.org/10.3390/ma16062142.
16. A Review of Coal Fly Ash Utilization: Environmental, Energy, and Material Assessment / M. Kuźnia // Energies. – 2024. – №18. – P. 52. https://doi.org/10.3390/en18010052.
17. Relationship Between the Chemical Composition and Radioactive Content of Fly Ash and Bottom Ash from Thermoelectric Power Plants / J.A. Suárez-Navarro et al // Minerals. – 2025. – № 15(5). – P. 471. https://doi.org/10.3390/min15050471.
18. The effect of mechanical activation of fly ash on cement-based materials hydration and hardened state properties / K. Akmalaiuly et al // Materials. – 2023. – № 16(8). – P. 2959. https://doi.org/10.3390/ma16082959
19. Mineralisation of CO2 in wood biomass ash for cement substitution in construction products / N. Tripathi et al // Frontiers in .Sustainability. – 2024. – № 5. – P. 1287543. https://doi.org/10.3389/frsus.2024.1287543.
20. Zhang X. Efficient activation of coal fly ash for silica and alumina leaches and the dependence of Pb (II) removal capacity on the crystallization conditions of Al-MCM-41 / X. Zhang, T. Du, H. Jia // International Journal of Molecular Sciences. – 2021. – № 22(12). – P. 6540. https://doi.org/10.3390/ijms22126540.
21. Mizerová C. Electrical properties of fly ash geopolymer composites with graphite conductive admixtures / C. Mizerová, I. Kusák, P. Rovnaník // Acta Polytechnica CTU Proceedings. – 2019. – №. 22. – P. 72-76. https://doi.org/10.14311/APP.2019.22.0072.
22. A sustainable process to recycle aluminum from coal fly ash for simultaneous removal of iron: Solid waste management and evaluation. / X. Li et al // Minerals Engineering. – 2022. – № 184. – P. 107638. https://doi.org/10.1016/j.mineng.2022.10763.
23. Improve toxicity leaching, physicochemical properties of incineration fly ash and performance as admixture by water washing / X. Ma et al // Construction and Building Materials. – 2023. – № 386. – P. 131568.
24. Tenza N.P. Coal fly ash industrial waste-derived products: A review / N.P. Tenza, M.E. Aphane // Environ. Sci. Pollut. Res. – 2026. – № 33. – P. 736-765. https://doi.org/10.1007/s11356-025- 37298-z.
25. A cleaner approach for recovering Al and Ti from coal fly ash via microwave-assisted baking, leaching, and precipitation / Y. Ma et al // Hydrometallurgy. – 2021. – № 206. – P. 105754. https://doi.org/10.1016/j.hydromet.2021.105754.
26. WANG Y. Research progress on the activation and extraction of valuable strategic key metals from coal fly ash / Y. WANG, Z.COAL DONG // GEOLOGY & EXPLORATION. – 2025. – № 176. – P. 94-102.
27. Correlation Between Heavy Metal Adsorption Capacity and Thermal Behavior of Acid Activated Kaolin During Coal Combustion / H. Cheng et al // Asia Pacific Journal of Chemical Engineering. – 2025. e70031. https://doi.org/10.1002/apj.70031.
28. Application of Thermal Plasma Technology for the Treatment of Solid Wastes in China: An Overview. / J. Li et al // Waste Manag. – 2016. – № 58. – P. 260-269. https://doi.org/10.1016/j.wasman.2016.06.011.
29. Thermal Plasma Technology for the Treatment of Wastes: A Critical Review / E. Gomez et al // Mater. – 2009. – № 161. – P. 614-626. https://doi.org/10.1016/j.jhazmat.2008.04.017.
30. Extraction of alumina from high-alumina fly ash by ammonium sulfate: roasting kinetics and mechanism / X. Li et al // RSC advances. – 2022. – № 12(51). – P. 33229-33238. https://doi.org/10.1039/D2RA06658K.
31. Study on Experimental Parameters of Alkali-Assisted Extraction of Aluminum from Fly Ash / B. Zhao et al // Materials. – 2025. – № 18(7). – P. 1568. https://doi.org/10.3390/ma18071568.
32. Extraction of alumina from fly ash by pyro-hydro metallurgical routes: A review / Rahul Mandal 1, Manaranjan Mohanta 2 1 Department Of Material Science, Maharaja Sriram Chandra BhajaDeo. // International Journal of Science and Research Archive. – 2024. – № 11(02). – P. 740-749.
33. Effects of Size and Mechanical Pre-Treatment on Aluminium Recovery from Municipal Solid Waste Incineration Bottom Ash / M. Gökelma et al // Minerals. – 2024. – № 14(10). – P. 1006. https://doi.org/10.3390/min14101006.
34. Shilla A. Review of methods for alumina recovery from mudstone and coal fly ash / A. Shilla, G. Mwandila // Heliyon. – 2024. – № 10(14). – P. 10 e34812.
35. Kar M.K. Alumina recovery from bauxite residue: A concise review / M.K. Kar, M.A.R. Ӧnal, C.R. Borra // Resources, Conservation and Recycling. – 2023. – № 198. – P. 107158. https://doi.org/10.1016/j.resconrec.2023.107158.
36. Metal extraction and recovery from mobile phone PCBs by a combination of bioleaching and precipitation processes / A. Santaolalla et al // Minerals. – 2021. – № 11(9). – P. 1004. https://doi.org/10.3390/min11091004.
37. Sangita S. Kinetics of aluminium leaching from coal fly ash by sulphuric acid / S. Sangita, C.R. Panda // Indian Journal of Chemical Technology. – 2020. – Vol. 27, № 4. – P. 263-273.
38. Energy-efficient leaching process for preparation of aluminum sulfate and synergistic extraction of Li and Ga from circulating fluidized bed fly ash / J. Li et al // Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. – 2022. – Vol. 44, № 3. – P. 7123-7136. https://doi.org/10.1080/15567036.2022.2074765.
39. The effect of sulphuric acid concentration on the removal of reactive aluminium from South African coal fly ash / M.E. Aphane et al // Journal of Environmental Chemical Engineering. – 2017. – Vol. 5, № 3. – P. 2458-2466. https://doi.org/10.1016/j.jece.2017.04.042.
40. Sodium fluoride assisted acid leaching of coal fly ash for the extraction of alumina / A. Tripathy et al // Minerals Engineering. – 2019. – Vol. 135. – P. 45-53. https://doi.org/10.1016/j.mineng.2019.02.012.
41. Kumar A. Processing of coal fly ash for the extraction of alumina values / A. Kumar, S. Agrawal, N. Dhawan // Journal of Sustainable Metallurgy. – 2020. – Vol. 6, № 3. – P. 450-462. https://doi.org/10.1007/s40831-020-00287-1.
42. Shoppert A. Kinetics study of Al extraction from desilicated coal fly ash by NaOH at atmospheric pressure/ A. Shoppert, I. Loginova, D. Valeev // Materials. – 2021. – Vol. 14, № 12. – Art. 3281. https://doi.org/10.3390/ma14123281.
43. Murmu A.K. Desilication of high-silica Indian coal fly ash by alkali leaching with KOH and NaOH: A comparative study/ A.K. Murmu, L. Parida, P.K. Senapati // International Journal of Coal Preparation and Utilization. – 2023. – Vol. 43, № 5. – P. 1801-1815. https://doi.org/10.1080/19392699.2021.1967482.
44. Micro-structural evolution of high aluminium fly ash enhanced by microwave heating to accelerate activation reaction process / T. Hu et al // Powder Technology. – 2021. – Vol. 385. – P. 144-153. https://doi.org/10.1016/j.powtec.2021.03.015.
45. Kinetics of aluminum extraction from roasting activated fly ash by sulfuric acid leaching / C.-J. Liu et al // MRS Communications. – 2023. – Vol. 13. – P. 512-520. https://doi.org/10.1557/s43579-023-00345-2.
46. Technology of processing of ash and slag waste of thermal power plants by sintering / A. Bakirov et al // Trudy Universiteta. – 2022. – № 4. – P. 103-110. https://doi.org/10.52209/1609- 1825_2022_4_103.
47. A study on the mechanism of alumina extraction from coal fly ash / M. Wang et al // Advanced Materials Research. – 2012. – Vol. 550-553. – P. 1123-1128.
48. Söldner A. Deep eutectic solvents as extraction media for metal salts and oxides exemplarily shown for phosphates from incinerated sewage sludge ash / A. Söldner, J. Zach, B. König // Green Chemistry. – 2019. – № 21 (2). – P. 321-328. https://doi.org/10.1039/D1GC03450B.
49. Recovery of rare earth elements from coal fly ash using deep eutectic solvents as leachants and precipitating as oxalate or fluoride / R. Karan et al // Hydrometallurgy. – 2022. – Vol. 214. – Art. 105972. https://doi.org/10.1016/j.hydromet.2022.105972.
50. Study on experimental parameters of alkali-assisted alumina recovery from fly ash / B. Zhao et al // Metals. – 2025. – Vol. 15, № 1. – P. 1-14. https://doi.org/10.3390/ma18071568.
51. Mechanical activation of coal fly ash and its effect on aluminum and rare-earth elements extraction / C. Meireles et al // Powder Technology. – 2023. – Vol. 418. – P. 118-129.
52. Microwave-assisted pretreatment of coal fly ash for enrichment and enhanced extraction of reactive phases / G.A. Yakaboylu et al // Energy & Fuels. – 2019. – Vol. 33, № 6. – P. 5674-5683.
53. Recovery of rare earth elements from coal fly ash using deep eutectic solvents as leachants and precipitating as oxalate or fluoride / R. Karan et al // Hydrometallurgy. – 2022. – Vol. 213. – P. 105975. https://doi.org/10.1016/j.hydromet.2022.105952.
54. Combining acid-based deep eutectic solvents and microwave irradiation for improved extraction / J. González-Rivera et al // Green Chemistry. – 2021. – Vol. 23, № 11. – P. 4189-4203. https://doi.org/10.1039/D1GC03450B.
55. Alguacil F.J. Recent work on the recovery of rare earths using ionic and deep eutectic solvents: a review / F.J. Alguacil, F.A. López // Minerals. – 2023. – Vol. 13, № 2. – P. 1-19. https://doi.org/10.3390/min13101288.
56. Moradi M. The influence of adding a supplementary constituent to choline chloride and ptoluenesulfonic acid based deep eutectic solvents on the dissolution of chalcopyrite / M. Moradi, S. Karimi, B. Behnajady // Journal of Manufacturing Innovations. – 2024. – № 1(2). – Р. 45-52.
57. Mechanical activation of coal fly ash and its effect on aluminum and rare-earth elements extraction / C. Meireles et al // Powder Technology. – 2023. – Vol. 418. – P. 118-129.
58. Impact of microwave Pre-Curing on pore structure and environmental performance of Metakaolin-and fly Ash-Based geopolymers / Y. Dong et al // Buildings. – 2024. – № 14(12). – P. 3918. https://doi.org/10.3390/buildings14123918.
59. A review of graphene research and its outputs: waste carbon source and synthesis technique / M.Z. Nurfazianawatie et al // Green Infrastructure: Materials and Sustainable Management. – 2024. – P. 205-225.
60. Insight into Aluminum Leaching with Microwave from Peat Clay: A Comparative Kinetic Study of SC and BIC Models / A. Mirwan et al // Communications in Science and Technology. – 2025. – № 10(2). – P. 447-459.
61. Extraction of Aluminum from Coal Fly Ash by Alkali Activation with Microwave Heating / N. Liu et al // Journal of Residuals Science Technology. – 2016. – № 13.
62. Micro-structural evolution of high aluminium fly ash enhanced by microwave heating to accelerate activation reaction process. / T. Hu et al // J. Powder Technology. – 2021. – № 377 – P. 739-747.
63. Stainable utilization strategies for basic oxygen furnace slag: Properties, processing, and future directions / C. Ma et al // Metals – 2025. – № 15(5). – P. 537.
64. Technologies for municipal solid waste management: Current status, challenges, and future perspectives / S. Khan et al // Chemosphere. – 2021. – № 288. – P. 132403. https://doi.org/10.1016/j.chemosphere.2021.132403.
65. The recycling of carbon-rich solid wastes from aluminum electrolytic cells: a review / Ma et al // Environmental Chemistry Letters. – 2024. – № 22(5). – P. 2531-2552. https://doi.org/10.1007/s10311-024-01738-y.
66. Drying kinetics of microwave-assisted drying of leaching residues from hydrometallurgy of zinc / C. Tian et al // Materials. – 2023. № 16(6). – P. 5546. https://doi.org/10.3390/ma16165546.
67. A cleaner approach for recovering Al and Ti from coal fly ash via microwave-assisted baking, leaching, and precipitation / Y. Ma et al // Hydrometallurgy.– 2021. № 206. – P. 105754. https://doi.org/10.1016/j.hydromet.2021.105754.
68. A sustainable process to recycle aluminum from coal fly ash for simultaneous removal of iron: Solid waste management and evaluation. / X. Li et al // Minerals Engineering. – 2022. № 184. – P. 107638. https://doi.org/10.1016/j.mineng.2022.107638.
Рецензия
Для цитирования:
Баатарбек Н., Камунур К., Онуральп Ю. КРАТКИЙ ОБЗОР МЕТОДОВ МИКРОВОЛНОВОГО ВЫЩЕЛАЧИВАНИЯ ЗОЛО-ШЛАКОВЫХ ОТХОДОВ С ИСПОЛЬЗОВАНИЕМ АМОРФНОГО ГРАФИТА. Вестник Университета Шакарима. Серия технические науки. 2026;(2(22)):674-689. https://doi.org/10.53360/2788-7995-2026-2(22)-69
For citation:
Баатарбек N., Kamunur K., Yücel O. A MINI REVIEW ON LEACHING METHODS OF ASH AND SLAG WASTE USING AMORPHOUS GRAPHITE IN A MICROWAVE FURNACE. Bulletin of Shakarim University. Technical Sciences. 2026;(2(22)):674-689. https://doi.org/10.53360/2788-7995-2026-2(22)-69
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