Abstract: The paper considers porous structures Ni-Al intermetallic compounds influence on the physico-mechanical and operational properties of catalysts. The difference in the physicomechanical properties of catalysts is explained by differences in their structure, phase composition, porosity and pore size. It was found that the catalyst from NiAl3 has a macroporous spongy structure, where the size of individual pores is 30-50 μm. Micropores occupy about ¼ of the pore space. In the leaching product, Ni2Al3 pores have an elongated shape, and the maximum radius of their wide part is 15-20 μm. The porosity of this catalyst, the average pore radius and the proportion of transition pores in it are also significantly lower than those being prepared from NiAl3.
Authors: Borys Sereda, Yuriy Belokon, Karina Belokon, Irina Krugljak, Dmytro Sereda, and Aleksandr Korobochka
Keywords: porosity, catalysts, physico-mechanical properties, strength, structure