Hydrothermal process of synthetic gibbsite and the characteristics of Na in gibbsite crystal
| Autor: | Feng-qin Liu, Hui-bin Yang, Hong-liang Zhao, Rui Wu |
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| Rok vydání: | 2018 |
| Předmět: |
Boehmite
Materials science Scanning electron microscope General Chemical Engineering fungi food and beverages 02 engineering and technology General Chemistry 010502 geochemistry & geophysics 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Industrial and Manufacturing Engineering Hydrothermal circulation Crystal chemistry.chemical_compound Chemical engineering chemistry Materials Chemistry Inductively coupled plasma 0210 nano-technology Hydrate Gibbsite 0105 earth and related environmental sciences Sodium aluminosilicate |
| Zdroj: | Chemical Papers. 72:3169-3178 |
| ISSN: | 1336-9075 2585-7290 |
| DOI: | 10.1007/s11696-018-0551-2 |
| Popis: | The presence of Na in synthetic gibbsite was studied by several modern testing methods such as X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and inductively coupled plasma. Results show that Na is located between gibbsite crystals and is not present as sodium aluminosilicate hydrate in synthetic gibbsite. Synthetic gibbsite crystal can be transformed into boehmite under the hydrothermal condition of 210 °C for 60 min. During the reaction process, synthetic gibbsite crystal particles break up into small fragments and form boehmite. During the process, impurities are released and the Na can be removed by washing. Over 90% of Na can be removed during the hydrothermal transformation process. This technology can be applied in the production process of high-purity alumina. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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