Research Article

Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid

Table 5

Reaction rates at the different concentrations (at 90°C).

Number Hydrogen ion concentration/mol/L ()Slope of the lineReaction rate of hydrogen ion/mol·L−1·min−1 ()

13.100.49−0.0650.065−1.19
22.660.43−0.0440.044−1.36
32.430.39−0.0330.033−1.48
42.210.34−0.0220.022−1.65