najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2024-15-6-768-773najo-160Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХScandium modified zirconia extracted from red mud as a waste of alumina productionКерамика стабилизированного скандием оксида циркония из красного шлама глиноземного производстваhttps://orcid.org/0000-0002-0631-5287ПасечникЛ. А.PasechnikL. A.

Liliya A. Pasechnik

Pervomayskaya, 91 Ekaterinburg 620108

pasechnik@ihim.uran.ruhttps://orcid.org/0000-0002-8636-3755МедянкинаИ. С.MedyankinaI. S.

Irina S. Medyankina

Pervomayskaya, 91 Ekaterinburg 620108

lysira90@mail.ruhttps://orcid.org/0000-0002-5678-4970ПереверзевД. И.PereverzevD. I.

Danil I. Pereverzev

Pervomayskaya, 91 Ekaterinburg 620108

danil_per@mail.ruhttps://orcid.org/0000-0003-3667-144XЧуфаровА. Ю.ChufarovA. Yu.

Alexander Yu. Chufarov

Pervomayskaya, 91 Ekaterinburg 620108

circulchufa@gmail.comhttps://orcid.org/0000-0002-3488-1454СунцовА. Ю.SuntsovA. Yu.

Alexey Yu. Suntsov

Pervomayskaya, 91 Ekaterinburg 620108

suntsov@ihim.uran.ruInstitute of Solid State Chemistry UB RASRussian Federation202405062025156768773Copyright © Pasechnik L.A., Medyankina I.S., Pereverzev D.I., Chufarov A.Y., Suntsov A.Y., 20252025Пасечник Л.А., Медянкина И.С., Переверзев Д.И., Чуфаров А.Ю., Сунцов А.Ю.Pasechnik L.A., Medyankina I.S., Pereverzev D.I., Chufarov A.Y., Suntsov A.Y.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/160

The total or partial utilization or recycling of bauxite processing waste (red mud) has the potential to reduce the harmful effect on the environment while simultaneously extracting the most valuable ingredient, scandium which is currently underutilized due to its high cost. The new efficient carbonation technology promises an assured supply of scandium and zirconium at a significantly reduced cost. Here, scandium-zirconium concentrate, extracted by hydrolysis from leachate after carbonate treatment of red mud, was subjected to sintering by ceramic technology at 1100◦C to produce scandia-stabilised zirconia (ScSZ). The XRD patterns demonstrate the successful doping of scandium into the zirconia lattice through the hydrolytic precipitation method. The ratio between the essential components of the functional ceramics Zr and Sc is approximately 4, which correlates with the doping level of ScSZ up to Zr0.8Sc0.2O1.9.

Полная или частичная утилизация или переработка отходов глиноземного производства (красного шлама) имеет потенциал для снижения вредного воздействия на окружающую среду при одновременном извлечении наиболее ценного ингредиента — скандия, который в настоящее время недоиспользуется из-за его высокой стоимости. Новая эффективная технология карбонизации обещает гарантированную поставку скандия и циркония по значительно сниженной стоимости. Здесь скандий-циркониевый концентрат, извлеченный гидролизом из фильтрата после карбонатной обработки красного шлама, подвергался спеканию по керамической технологии при 1100 °C для получения циркония, стабилизированного скандией (ScSZ). Рентгеновские дифракционные картины демонстрируют успешное легирование скандием решетки циркония методом гидролитического осаждения. Соотношение между основными компонентами функциональной керамики Zr и Sc составляет приблизительно 4, что коррелирует с уровнем легирования ScSZ до Zr0.8Sc0.2O1.9.

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The authors declare that there are no conflicts of interest present.