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STUDIA CHEMIA - Issue no. 4 / 2007 | |||||||
Article: |
KINETIC STUDY OF CALCINATION FOR PRECIPITATE CALCIUM CARBONATE. Authors: SIMION DRĂGAN, ADINA GHIRIȘAN. |
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Abstract: In this paper, the calcination reaction of precipitate calcium carbonate (PCC) was investigated, using thermogravimetric analysis technique. All experiments were performed in isothermal conditions, within a temperature range of 1073-1223 K, with main diameters of granules between 0.063 mm and 0.45 mm. Two models were applied to the experimental results and it was found that the Avraami-Erofeev-Kolmogorov is the best model which has fitted the experimental data. The equation of mathematical model is where and . | |||||||