Ceramic block supports were obtained by extrusion molding, varying the particle size and the conditions for obtaining corundum. The structural and mechanical properties of the molding mixtures were investigated, the textural and strength characteristics of the blocks after annealing were determined. It is shown that the use of corundum powder obtained by mixing particles of different sizes leads to the production of a molding mass of the 1st or 4th structural-mechanical type and makes it possible to prepare a ceramic block carrier with a channel density of about 200 pieces / inch 2 , mechanical strength of at least 4.3 MPa and high resistance to thermal cycles
Isupova LA, Sutormina EF, Kulikovskaya N .A. et al. Honeycomb supported perovskite catalysts for ammonia oxidation processes // Catalysis Today. 2005. V. 105. P. 429? 435.
Pat. RF 2397810. MPK-8, B01J23 / 10. Catalyst and method for decomposition of dinitrogen monoxide and method and device for producing nitric acid / Neumann J?rgen. Publ. 27.08.2010.
Aleksandrova Yu. V., Vlasov EA, Maltseva NV, et al. Block products of honeycomb structure from oxide ceramics. Part 1 // Refractories and technical ceramics. 2010.? 7? 8, p. 62? 66.
Ismagilov ZR, Shepeleva MN, Skrabina RA, Fenelo-nov VB Interrelation between structural and mechanical characteristics of spherical alumina granules and the initial hydroxide properties // Appl. Catal. 1991. V. 69. P. 65? 73.
Zhensa A. V., Polunin A. A., Koltsova E. M. et al. Development of an information system for extrusion molding of catalyst pastes // Chemical industry today. 2003.? 9, p. 4? 9.
Petropavlovskiy IA, Kostyuchenko VV, Filipin VA et al. Features of extrusion technology and application of alumina catalysts with figured grain shape // Chemical Industry. 1997.? 10, p. 19? 23.
Kruglyakov V. Yu., Isupova L. A., Glazyrin A. V. et al. Investigation of the properties of molding masses based on aluminum hydroxides intended for extrusion molding // Catalysis in industry. 2016.? 1.S. 6? 12.
Nichiporenko SP Physical and chemical mechanics of dispersed structures in construction ceramics technology. Kiev: Naukova Dumka, 1968.76.p.
Kruglyakov V. Yu., Kulikovskaya N. A., Isupova L. A. Rheological properties of catalyst pastes of the IK-42-1 block catalyst depending on the preparation conditions. 2008.? 5.S. 41? 49.
Prokofiev V. Yu., Razgovorov PB, Ilyin AP Fundamentals of physical and chemical mechanics of extruded catalysts and sorbents. M .: Krasand, 2013.320 p.
Ilyin A.P., Prokofiev V.Yu. Physicochemical mechanics in the technology of catalysts and sorbents / Ivanovo State University. chem.-technologist. in-t. Ivanovo, 2004.316 p.
Ismagilov ZR, Shkrabina RA, Koryabkina NA Alumina carriers: production, properties and application in catalytic processes of environmental protection: analyte. review / SB RAS. State Public Library for Science and Technology; Institute of catalysis them. G.K.Boreskova. Novosibirsk, 1998.82 p. (Ecology. Issue 50).
Benbow JJ, Bridgwater J. On the prediction of extrudate pore structure from particle size // Chem. Eng. Sci. 1987. V. 42. N 4. P. 753? 766.
Rebinder PA Physico-chemical mechanics of dispersed structures. Moscow: Nauka, 1966.284 p.
The article can be purchased
electronic!
PDF format
700 руб
UDK 666.631:666.762.11:621.929:66.097.5:532.135
Article type:
Science for ceramic production
Make a request
