| The Applicability of Debye-Hückel Model in NaAl(OH)4-NaOH-H2O System |
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| 引用本文： | 李小斌,吕卫君,冯港涛,刘桂华,彭志宏,周秋生,孟芸.The Applicability of Debye-Hückel Model in NaAl(OH)4-NaOH-H2O System[J].过程工程学报,2005,5(5):525-528. |
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| 作者姓名： | 李小斌 吕卫君 冯港涛 刘桂华 彭志宏 周秋生 孟芸 |
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| 作者单位： | LI Xiao-bin（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China）
LU Wei-jun（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China）
FENG Gang-tao（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China）
LIU Gui-hua（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China）
PENG Zhi-hong（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China）
ZHOU Qiu-sheng（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China）
MENG Yun（School of Metallurgical Science and Engineering, Central South University, Changsha, Hunan 410083, China） |
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| 基金项目： | Supported by the National Natural Science Foundation of China (No.50274076) and the National Key Fundamental Research and Development Program of China (No.2005CB623702) |
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| 摘 要： | Focusing on the most important NaAl(OH)4-NaOH-H2O system in the industry of alumina production, the feasibility of establishing a calculation model of activity coefficients according to Debye-Hückel theory via the equilibrium solubility data of sodium aluminate solution is discussed in this paper. Firstly, the hypotheses for applying Debye-Hückel theory into NaAl(OH)4-NaOH-H2O system are involved and the values of parameters are determined. Then the applicability of Debye-Hückel model in NaAl(OH)4-NaOH-H2O system is testified. The results indicate that Debye-Hückel model is applicable to the establishment of calculation model of activity coefficients in NaAl(OH)4-NaOH-H2O system and the value of ?NaAl(OH)4 is estimated as 0.3595 nm.
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| 关 键 词： | activity coefficients Debye-Hückel theory sodium aluminate solution applicability |
| 文章编号： | 1009-606X(2005)05-0525-04 |
| 修稿时间： | 2005年1月24日 |
The Applicability of Debye-Hückel Model in NaAl(OH)4-NaOH-H2O System |
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| LI Xiao-bin,LU Wei-jun,FENG Gang-tao,LIU Gui-hua,PENG Zhi-hong,ZHOU Qiu-sheng,MENG Yun.The Applicability of Debye-Hückel Model in NaAl(OH)4-NaOH-H2O System[J].Chinese Journal of Process Engineering,2005,5(5):525-528. |
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| Authors: | LI Xiao-bin LU Wei-jun FENG Gang-tao LIU Gui-hua PENG Zhi-hong ZHOU Qiu-sheng MENG Yun |
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| Abstract: | Focusing on the most important NaAl(OH)4-NaOH-H2O system in the industry of alumina production, the theory into NaAl(OH)4-NaOH-H2O system are involved and the values of parameters are determined. Then the applicability applicable to the establishment of calculation model of activity coefficients in NaAl(OH)4-NaOH-H2O system and the value of aNaAl(OH)4 is estimated as 0.3595 nm. |
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| Keywords: | activity coefficients Debye-Hückel theory sodium aluminate solution applicability |
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