Author(s):
1. Dragana Kostić, University of East Sarajevo, Faculty of Technology, Republic of Srpska, Bosnia and Herzegovina
2. Mitar Perušić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
3. Srećko Stopić, RWTH Aachen University, Germany
4. Ljubiša Balanović, Tehnički fakultet u Boru, Serbia
5. Duško Kostić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
6. Vladimir Damjanovic, Alumina doo, , Republic of Srpska, Bosnia and Herzegovina
7. Radislav Filipovic, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
8. Jelena Vuković, Tehnološki fakultet Zvornik, Univerzitet u Istočnom Sarajevu, Republic of Srpska, Bosnia and Herzegovina
9. Nebojša Vasiljević, Univerzitet u Istočnom Sarajevu, Tehnološki fakultet Zvornik, Republic of Srpska, Bosnia and Herzegovina

Abstract:
In this study, thermal TGA-DSC analysis of red mud, a residue from bauxite leaching in the Bayer process, was conducted. The samples were examined using chemical analysis methods to determine the content of red mud components such as SiO₂, Fe₂O₃, Al₂O₃, CaO, and TiO₂. Spectrophotometric and gravimetric methods were employed. Prior to this, XRD analysis was performed to identify the crystalline modifications and crystalline components present in the red mud, i.e., the mineral compounds that constitute red mud. This was done in order to monitor the expected changes occurring during heating and thermal treatment of the red mud. Understanding the changes that occur during the heating and thermal treatment of red mud is essential, as this process involves dehydration, transformations in the crystalline structure of the components, and changes related to specific surface area. These factors are significant for metal reduction or for the potential application of red mud as an effective adsorbent material.

Key words:
bauxite,red mud,thermal analysis,TGA,DSC

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

Date of abstract submission:
11.07.2025.

Conference:
Contemporary Materials 2025 - Savremeni Materijali

Applied paper from author