Research Article

Carbonatation and Decarbonatation Kinetics in the La2O3-La2O2CO3 System under CO2 Gas Flows

Figure 5

Evolution of l n ( Σ ) versus 103/T of initial La2O3 sample during its carbonatation and decarbonatation, in the temperature range 300 to 9 5 0 C, under a constant CO2 gas flow: (a) starting step of carbonatation between 450 and 7 5 0 C with two conduction regimes; (b) decarbonatation step above 7 5 0 C.
360597.fig.005