Table 1.
Elementary compositions wt. % of chromium (Cr3+) and sodium (Na+) exchanged sample raw-maghnite (Algerian MMT).
Compositions wt.% | SiO2 | Al2O3 | Fe2O3 | CaO | Na2O | MgO | K2O | TiO2 | Cr2O3 | Pert in fire |
---|---|---|---|---|---|---|---|---|---|---|
Raw-MMT | 69.39 | 14.67 | 1.16 | 0.30 | 0.50 | 1.07 | 0.79 | 0.16 | 0.00 | 11.96 |
MMT-Na | 70.75 | 14.46 | 1.05 | 0.19 | 2.61 | 1.01 | 0.78 | 0.14 | 0.00 | 09.01 |
MMT-Cr | 71.01 | 14.06 | 1.00 | 0.14 | 0.15 | 0.98 | 0.71 | 0.15 | 2.61 | 09.35 |