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MODEL FOR THE PREDICTION OF DEHYDRATION AND CALCINATION RATES OF BAYER PLANT GIBBSITE |
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| Authors: | W.J.N. Fernando O.E. Potter |
| Affiliation: | 1. Department of Chemical Engineering , University of Peradeniya, Sri Lanka;2. Department of Chemical Engineering , Monash University, Clayton, Victoria, 3168, Australia |
| Abstract: | A model for the prediction of rates of dehydration of Chemically Bound Moisture of Gibbsite is proposed. The theoretical dehydration rates evaluated from the model are compared with experimental values. The correlation between the experimental data and theoretically predicted values is found to be satisfactory. The curves obtained for differential thermal analysis of Gibbsite are found to resemble the DTA curves predicted theoretically using the proposed rate equations. |
| Keywords: | activation energy conversion dehydration mechanism dehydration reaction differential thermal analysis equilibrium moisture content isothermal dehydration curve moisture content transformation |