An investigation on the calcination kinetics of zinc carbonate hydroxide and Calsimin zinc carbonate concentrate
| Autor: | Amir Hossein Nobari, Mohammad Halali |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
General Chemical Engineering
Inorganic chemistry chemistry.chemical_element General Chemistry Activation energy Zinc Industrial and Manufacturing Engineering Isothermal process law.invention Thermogravimetry chemistry.chemical_compound Differential scanning calorimetry chemistry law Environmental Chemistry Hydroxide Carbonate Calcination |
| Zdroj: | Chemical Engineering Journal. 121:79-84 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2006.05.008 |
| Popis: | In this study the thermal calcination of two materials, high purity zinc carbonate hydroxide and the Calsimin zinc carbonate concentrate have been investigated. Isothermal studies have been performed on samples at different temperatures and times. Non-isothermal analysis has been carried out by TGA and DSC. It has been found that the calcination behaviour of both materials corresponds to the shrinking core model. The activation energy for the calcination of zinc carbonate hydroxide is found to be 88.7 kJ/mol, and that for the Calsimin sample is 97.3 kJ/mol. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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