Synergetic effects of temperature and magnetic field on the aragonite and calcite growth
| Autor: | Meng-Chun Chang, Clifford Y. Tai, Shih-Wei Yeh |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Calcite
Chemistry Applied Mathematics General Chemical Engineering Aragonite Mineralogy General Chemistry engineering.material Industrial and Manufacturing Engineering law.invention Magnetization chemistry.chemical_compound Calcium carbonate Chemical engineering law Fluidized bed Mass transfer engineering Growth rate Crystallization |
| Zdroj: | Chemical Engineering Science. 66:1246-1253 |
| ISSN: | 0009-2509 |
| Popis: | The effects of temperature and magnetic field on aragonite and calcite growth were investigated in a stirred-tank crystallizer, using the constant-composition technique. At room temperature without magnetization, the calcite seeds grew but the aragonite did not. When the growth rates of the aragonite and calcite seeds were measured in the presence of a magnetic field at temperatures above room temperature, the synergetic effects were significant but with differing effects on the different seeds. The cluster-transformation mechanism was used to explain the growth rate data. Finally, the aragonite growth rate data were compared with data obtained in a fluidized bed. |
| Databáze: | OpenAIRE |
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