| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alumina and Bauxite
|
| Presentation Title |
Dealkalization behavior of industrial waste sulfuric acid on Bayer red mud |
| Author(s) |
Chaojun Fang, Ruixue Lou, Yihong Jia, Lijuan Gao, Xueqian Qin, Yongping Wang, Xiaowei Deng, Bo Lv |
| On-Site Speaker (Planned) |
Ruixue Lou |
| Abstract Scope |
Red mud is the industrial waste generated in the Bayer process of alumina production. The low-cost disposal and comprehensive utilization of red mud is the hotpot. Processing into building materials is an important route to utilize red mud on a large scale, but it is limited by the alkalinity in the red mud. In this paper, industrial waste sulfuric acid was employed as the dealkalinization agent, and the feasibility of industrial waste sulfuric acid to remove alkalinity in red mud was preliminarily explored. The results show that when the concentration of industrial waste sulfuric acid is 0.2mol/L and the liquid-solid ratio is 6, the dealkalization rate of red mud exceeds 80%, which can realize the effective dealkalization of red mud. This study has important reference for low-cost dealkalization and large-scale comprehensive utilization of red mud. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Sustainability, |