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The paper describes different processing schemes to transform bauxite residue (BR) into new binders for building applications, while recovering, depending on the chosen route, base metals. The flow chart consists of several unit operations. The first step is the chemical modification, by mixing BR with additives, such as C, SiO2, and/or B2O3. Different blends are sintered or vitrified at temperatures ranging from 900 to 1200 °C. When silica and carbon are added, typically a semi-vitreous slagdoi:10.5281/zenodo.1241063 fatcat:zrkubghth5dqxfauyjsw7rqvpa