Author(s):
1. Duško Kostić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
2. Mitar Perušić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
3. Radislav Filipovic, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
4. Zoran Obrenovic, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
5. Dragana Kostić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina

Abstract:
Alumina is product which can be produced in several ways, whereby different quality can be derived. Although it is very complicated, Bayer process is most abundant because it gives alumina with very good quality. Depending of aluminum tri-hydrate type which has to be produced, solution is treated ie not treated with appropriate additive, and later crystallization condition determines other properties and usage of alumina. In this research, as well as the title hints, effect of additive for whiteness is examined on quality of derived aluminium hydroxide. Under that, effect of concentracion of additive, and mixing time, is included. Also, by reviewing literature and practical alumina plant approach “Alumina” d.o.o., conditions of decomposition of sodium aluminate is processed as well as it’s effects on product quality. All of the experiments is performed in research and central laboratory of alumina plant and derived results is compared with ones from industrial conditions. Derived results can be used to accelerate further science-research work on this theme as well as the energy efficiency and quality improvement.

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
28.07.2021.

Conference:
Contemporary Materials 2021 - Savremeni materijali

Applied paper from author Final paper