Abstract
The use of nanotechnogenic high-alumina (Al2O3 > 70 %) raw materials of petrochemical production ― the spent IM2201 catalyst in the production of acid-resistant materials based on unenriched kaolin clay makes it possible to obtain products with high physical, mechanical and chemical parameters in the range of firing temperatures of 1250‒1300 o C. Nanotechnogenic raw materials contribute to an increase in surface energy, which is the source of the sintering process. Studies have shown that in compositions based on unenriched kaolin clay and chamotte from it, which do not contain nanotechnogenic high-alumina raw materials, mainly mullite is formed, which mainly forms the operational properties of ceramic products. X-ray diffractometric analysis showed that the introduction of nanotechnogenic high-alumina raw materials into the compositions of ceramic masses contributes to the formation of corundum. IR spectroscopic analysis confirmed the data of X-ray studies. Corundum is characterized by high chemical resistance to acidic and alkaline reagents and gives acid-resistant materials high physical and mechanical properties. Ill. 4. Ref. 33. Tab. 5.
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