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Original scientific paper

THE EFFECT OF ADDITIVES ON α-Al2O3 OCCURRENCE KINETICS DURING HEATING OF INDUSTRIAL ALUMINUM HYDROXIDE

By
Mitar Perušić ,
Mitar Perušić
Contact Mitar Perušić

Faculty of Technology Zvornik, University of East Sarajevo , Lukavica , Bosnia and Herzegovina

Zoran Obrenović ,
Zoran Obrenović

Factory of Alumina „Birac“ , Zvornik , Bosnia and Herzegovina

Miladin Gligorić
Miladin Gligorić

Faculty of Technology Zvornik, University of East Sarajevo , Lukavica , Bosnia and Herzegovina

Abstract

This paper presents the results of the impact of basic additives in the process of heating (calcinations) of industrial aluminum hydroxide and the formation of the final stable phase α- Al2O3. The influence of additives have been focused on the result of the impact, ie. on the kinetics of crystallization of α-Al2O3, and the comparative analysis of the corresponding activation energies determined for each of the additives used. Based on the experimental results, using a suitable fundamental principles of the Arrhenius equation and suitable statistical tools, it can be concluded about the possible impact of certain quantity additives on the kinetics of the crystallization process, whose results are presented in this paper.

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Authors retain copyright. This work is made freely available online under an open-access model under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC-http://creativecommons.org/licenses/by-nc-nd/4.0/BY-NC-ND 4.0).

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