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Synthesis of Aluminum Oxides from the Products of the Rapid Thermal Decomposition of Hydrargillite in a Centrifugal Flash Reactor: III. Properties of Aluminum Hydroxides and Oxides Obtained via the Mild Rehydration of the Products of the Centrifugal Thermal Activation of Hydrargillite Научная публикация

Журнал Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Вых. Данные Год: 2007, Том: 48, Номер: 2, Страницы: 327-335 Страниц : 9 DOI: 10.1134/S0023158407020188
Ключевые слова Boehmite; Thermal Analysis Data; Bayerite; Hydration Time; Hydrargillite
Авторы Kharina I.V. 1 , Isupova L.A. 1 , Litvak G.S. 1 , Moroz E.M. 1 , Kryukova G.N. 1 , Rudina N.A. 1 , Tanashev Y.Y. 1 , Parmon V.N. 1
Организации
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Реферат: The interaction between the amorphous product of the centrifugal thermal activation of hydrargillite (CTA HG) and aqueous electrolytes (pH 5–11) under mild conditions (15–35°C, atmospheric pressure) has been investigated by a variety of physicochemical methods. This interaction causes material morphologic and phase changes in CTA HG, and the product composition is governed by the pH of the electrolyte and by the hydration temperature and time. The product that forms in a basic medium or water in <24 h contains up to 50% pseudoboehmite. Raising the pH or temperature or extending the hydration time results in the formation of bayerite as the major phase (∼80%). An X-ray amorphous hydroxide forms in acid media. The heat treatment of this hydroxide at 550°C yields aluminum oxides differing from alumina prepared via hydroxide reprecipitation. Products with new, unusual properties can thus be obtained.
Библиографическая ссылка: Kharina I.V. , Isupova L.A. , Litvak G.S. , Moroz E.M. , Kryukova G.N. , Rudina N.A. , Tanashev Y.Y. , Parmon V.N.
Synthesis of Aluminum Oxides from the Products of the Rapid Thermal Decomposition of Hydrargillite in a Centrifugal Flash Reactor: III. Properties of Aluminum Hydroxides and Oxides Obtained via the Mild Rehydration of the Products of the Centrifugal Thermal Activation of Hydrargillite
Kinetics and Catalysis. 2007. V.48. N2. P.327-335. DOI: 10.1134/S0023158407020188 WOS Scopus РИНЦ CAPlusCA OpenAlex
Оригинальная: Харина И.В. , Исупова Л.А. , Литвак Г.С. , Мороз Э.М. , Крюкова Г.Н. , Рудина Н.А. , Танашев Ю.Ю. , Пармон В.Н.
Получение оксидов алюминия на основе продуктов быстрого терморазложения гидраргиллита в центробежном флаш-реакторе III. Свойства гидроксидов и оксидов алюминия, образующихся на основе регидратированных в мягких условиях продуктов центробежно-термической активации гидраргиллита
Кинетика и катализ. 2007. Т.48. №2. С.343-352. РИНЦ
Даты:
Поступила в редакцию: 16 апр. 2005 г.
Опубликована в печати: 1 мар. 2007 г.
Идентификаторы БД:
Web of science: WOS:000245978000018
Scopus: 2-s2.0-34247508928
РИНЦ: 13537698
Chemical Abstracts: 2007:452486
Chemical Abstracts (print): 148:150019
OpenAlex: W2066743894
Цитирование в БД:
БД Цитирований
Web of science 19
Scopus 14
РИНЦ 22
OpenAlex 21
Альметрики: