Dissolution Behavior of Aluminum, Silicon, and Iron of Diaspore Concentrate in NaOH-NaAl(OH)(4) Solutions at Elevated Temperature
文献类型：期刊论文
| 作者 | Zeng, Lanmu; Li, Zhibao |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2013-12-25 |
| 卷号 | 52期号:51页码:18429-18439 |
| ISSN号 | 0888-5885 |
| 英文摘要 | The high temperature dissolution behavior of diaspore concentrate was measured in concentrated NaOH-NaAl(OH)(4) solutions. The dissolution rate of Al was greatly found to be enhanced by increasing NaOH concentration and temperature while decreased with addition of Al(OH)(3). The concentration of Si as the main impurity constantly decreases with reaction time while the Fe is retained at a limited level. The generalized rate law for mineral dissolution and precipitation, proposed by Lasaga (Lasaga, A. C. Kinetic Theory in the Earth Science; Princeton University Press: Princeton, NJ, USA, 1998), was applied to model the kinetic behavior of Al on the basis of K-sp(diaspore) and the activity coefficients of related species in the solution. The resulting kinetic model was capable of predicting the dissolution rate of Al in the Bayer liquor. The apparent activation energy of the dissolution reaction over the temperature range from 473.2 to 543.2 K was estimated at 83 kj.mol(-1). |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | FLUID-SOLID REACTIONS ; RANDOM PORE MODEL ; BAYER PROCESS ; BAUXITE ; SOLUBILITY ; DIGESTION ; ALUMINOSILICATES ; GIBBSITE ; BOEHMITE ; KINETICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000329137500033 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13332]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Lanmu,Li, Zhibao. Dissolution Behavior of Aluminum, Silicon, and Iron of Diaspore Concentrate in NaOH-NaAl(OH)(4) Solutions at Elevated Temperature[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2013,52(51):18429-18439. |
| APA | Zeng, Lanmu,&Li, Zhibao.(2013).Dissolution Behavior of Aluminum, Silicon, and Iron of Diaspore Concentrate in NaOH-NaAl(OH)(4) Solutions at Elevated Temperature.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,52(51),18429-18439. |
| MLA | Zeng, Lanmu,et al."Dissolution Behavior of Aluminum, Silicon, and Iron of Diaspore Concentrate in NaOH-NaAl(OH)(4) Solutions at Elevated Temperature".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 52.51(2013):18429-18439. |
入库方式： OAI收割
来源：过程工程研究所
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