journal article·2014-02

Dissolution kinetics of metakaolin in sulfuric acid: Comparison between heterogeneous and homogeneous reaction methods

P.E.A. Lima, R.S. Angélica, R.F. Neves

Applied Clay Science· Volume 88-89
Publisher page

Abstract

Abstract A kinetic study of metakaolin dissolution in sulfuric acid was carried out with the application of homogeneous and heterogeneous reaction methods. The comparison between them was not found in literature. The results showed small differences for activation energies, with an average of 96.8 kJ/mol, and leaching reaction of the first order with respect to aluminum from metakaolin. The kinetic study of metakaolin dissolution process in acid solution can be carried out by applying relatively easy-to-use homogeneous reaction methods that require short time for their application.
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Research context

OpenAlex topics: Thermal and Kinetic Analysis · Concrete and Cement Materials Research · Thermochemical Biomass Conversion Processes

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