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Characteristics optimization of activated alumina desiccants based on product of a centrifugal thermal activation of gibbsite

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

Activated alumina desiccants modified with NaOH and KOH were synthesized from the product of a centrifugal thermal activation of gibbsite, with the subsequent hydration in an acid or alkaline medium, and their properties were studied. It was shown that the modification makes it possible to raise the dynamic capacity of desiccants produced from pseudoboehmite by up to a factor of 2 via formation of new super-strong basic centers the concentration of which grows with increasing content of an alkaline oxide. A correlation was found between the total concentration of basic centers on the surface of the desiccants and their dynamic capacity in drying of both dry and humid air. Use of the modified desiccants with high static and dynamic capacity will make it possible to improve the drying efficiency.

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Authors and Affiliations

  1. Tomsk State University, pr. Lenina 36, Tomsk, 634050, Russia

    V. V. Danilevich, L. A. Isupova, I. G. Danilova & R. A. Zotov

  2. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, ul. Akademika Lavrent’eva 5, Novosibirsk, 630090, Russia

    V. V. Danilevich, L. A. Isupova, I. G. Danilova & V. A. Ushakov

Authors
  1. V. V. Danilevich
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  2. L. A. Isupova
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  3. I. G. Danilova
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  4. R. A. Zotov
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  5. V. A. Ushakov
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Corresponding author

Correspondence to V. V. Danilevich.

Additional information

Original Russian Text © V.V. Danilevich, L.A. Isupova, I.G. Danilova, R.A. Zotov, V.A. Ushakov, 2016, published in Zhurnal Prikladnoi Khimii, 2016, Vol. 89, No. 3, pp. 289−299.

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Danilevich, V.V., Isupova, L.A., Danilova, I.G. et al. Characteristics optimization of activated alumina desiccants based on product of a centrifugal thermal activation of gibbsite. Russ J Appl Chem 89, 343–353 (2016). https://doi.org/10.1134/S1070427216030010

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  • DOI: https://doi.org/10.1134/S1070427216030010

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