BAUXITE RESIDUE USE TO REMOVE SO_2 FROM GAS EFFLUENTS

摘要

The production of alumina from bauxite using the Bayer process generates 0.7 to 2.0 ton of the residue known as red mud per ton of alumina. This material has no large scale current use and is usually stored. This paper shows that it can be used in a suspension with water as a gas effluent cleaner with high efficiency to remove SO_2. It can substitute other materials currently used reducing the overall environmental impact and potentially reducing the cost of gas treatment.