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Publikācija: Catalitic Properties of Phyllosilicate in the Concentrated Oxide Suspension

Publication Type Publikācija RTU zinātniskajā žurnālā
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Catalitic Properties of Phyllosilicate in the Concentrated Oxide Suspension
Field of research 2. Engineering and technology
Sub-field of research 2.4 Chemical engineering
Authors Andris Actiņš
Andris Butlers
Inese Sidraba
Ruta Švinka
Visvaldis Švinka
Ieva Zaķe-Tiļuga
Keywords filosilikāti, māli, alumīnija oksīdsalumīnija pulveris, suspensija, poraina keramika
Abstract Porous ceramic from clay and alumina concentrated suspensions (water content 28-35%) in the direct process of pore formation by reaction of metallic aluminium powder with water are obtained. Clay minerals form stable suspension thanks surface charge of particle surface, which is characterize by zeta potential. Clay minerals associate the developed pore structure after hydrogen elimination. After drying and sintering structure remains. Different materials structure is obtain by use kaolinite, illite or smectite because particles of these minerals have different zeta potential. Pore structure of obtained materials depends on the mineralogical composition of clay. Various admixtures (carbonate, sand) influences hydrogen elimination process and viscosity of suspension. The best catalytic properties characterises kaolinite with the highest zeta potential.
Reference Actiņš, A., Butlers, A., Sidraba, I., Švinka, R., Švinka, V., Zaķe-Tiļuga, I. Catalitic Properties of Phyllosilicate in the Concentrated Oxide Suspension. Materials Sciences and Applied Chemistry. Vol.17, 2008, pp.38-44. ISSN 1407-7353.
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