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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tang, Zhenhua Wang, Xiaohui Zheng, Shili Wang, Zehua Ma, Shuhua |
| Description | Author Affiliation: Wang Z ( National Engineering Laboratory for Hydrometallurgy Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China); Ma S ( National Engineering Laboratory for Hydrometallurgy Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China. Electronic address: shma@ipe.ac.cn.); Tang Z ( National Engineering Laboratory for Hydrometallurgy Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.); Wang X ( National Engineering Laboratory for Hydrometallurgy Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.); Zheng S ( National Engineering Laboratory for Hydrometallurgy Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.) |
| Abstract | The effective removal of alkali in the alumina-extracted reside (AER) obtained by extracting alumina from high-alumina fly ash is the premise for realizing the utilization of the silicon component in the fly ash. Sodium was removed from the AER by a decomposition reaction. The effects of the particle size and reactant coating on the decomposition reaction of AER were studied, and the results showed that by decreasing the particle size, the decomposition reaction rate of AER could be enhanced obviously and the Na2O content of the products could be decreased effectively. In addition, the process and mechanism of the decomposition reaction of AER and the reaction kinetics were investigated. The results revealed that the decomposition reaction of AER started from the outer surface of the AER particles. The reaction kinetics corresponded with shrinking unreacted core models. Furthermore, the decomposition reaction rate of AER could be enhanced obviously by decreasing the particle size because the effect of product layer diffusion was weakened when the particle size of AER was decreased. |
| ISSN | 03043894 |
| Journal | Journal of Hazardous Materials |
| Volume Number | 308 |
| e-ISSN | 18733336 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-05-05 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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