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Original scientific paper

The influence of process parameters on the morphological characteristics of fine precipitated hydrate

By
Sandra Petričević ,
Sandra Petričević

Alumina d.o.o. , Zvornik , Bosnia and Herzegovina

Aleksandar Došić ,
Aleksandar Došić
Contact Aleksandar Došić

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

Radislav Filipović ,
Radislav Filipović

Alumina d.o.o. , Zvornik , Bosnia and Herzegovina

Vladimir Damjanović ,
Vladimir Damjanović

Alumina d.o.o. , Zvornik , Bosnia and Herzegovina

Zoran Obrenović ,
Zoran Obrenović

Alumina d.o.o. , Zvornik , Bosnia and Herzegovina

Mitar Perušić ,
Mitar Perušić

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

Vladislav Sekulić ,
Vladislav Sekulić

Alumina d.o.o. , Zvornik , Bosnia and Herzegovina

Vladan Mičić ,
Vladan Mičić

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

Duško Korstić
Duško Korstić

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

Abstract

In this paper, the influence of process parameters on the morphological properties of fine precipitated hydrate was examined. The research was conducted with the aim of synthesizing fine precipitated aluminum hydroxide from the aluminate solution obtained by the Bayer process. Fine precipitated hydrates obtained in this way are mostly used in the non-metallurgical industry. The synthesized fine precipitated hydrate should comply with certain quality requirements such as granulometry (average particle diameter), purity, specific surface area, whiteness, etc. This paper shows the influence of certain technological parameters, namely the initial precipitation temperature, the amount and specific surface area of the seed, the influence of the NaOH/Al(OH)3 molar ratio on the characteristics of the synthesized fine precipitated hydrate in terms of the specific surface area, mean diameter and morphology of the obtained particles.

Citation

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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