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| 氯氧化铋在盐酸溶液中溶解度的测定和关联 | |
| 引用本文： | 张笛,肖清贵,张炳烛,许永权,徐红彬,张懿. 氯氧化铋在盐酸溶液中溶解度的测定和关联[J]. 化工学报, 2014, 65(6): 1987-1992. DOI: 10.3969/j.issn.0438-1157.2014.06.006 |
| 作者姓名： | 张笛 肖清贵 张炳烛 许永权 徐红彬 张懿 |
| 作者单位： | 1. 河北科技大学化学与制药工程学院, 河北 石家庄 050018;2. 中国科学院过程工程研究所绿色过程与工程重点实验室, 北京 100190 |
| 基金项目： | 国家自然科学基金项目（21376251）；国家高技术研究发展计划项目（2011AA060702）；国家重点基础研究发展计划项目（2013CB632600）。 |
| 摘 要： | 在水解法制备氯氧化铋的反应结晶过程中，氯氧化铋在盐酸溶液中的溶解度数据至关重要。采用平衡法测定了303.15～363.15 K范围内氯氧化铋在盐酸溶液中的溶解度，并用Apelblat方程、经验多项式方程、λh方程对实验数据进行关联。结果表明：氯氧化铋溶解度随着盐酸浓度和温度的升高而增加，盐酸的浓度对氯氧化铋溶解度的影响更为显著；上述3种模型都可用于关联氯氧化铋的溶解度与温度的关系，就BiCl3-HCl-H2O体系而言，Apelblat方程、经验多项式方程和λh方程的拟合精度分别为0.99、0.98和0.93， Apelblat方程的模拟结果最佳。 |
| 关 键 词： | 氯氧化铋 溶解度 平衡法 关联 |
| 收稿时间： | 2013-10-10 |
| 修稿时间： | 2013-12-23 |
Determination and correlation of solubility of bismuth oxychloride in hydrochloric acid solution |
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| ZHANG Di,XIAO Qinggui,ZHANG Bingzhu,XU Yongquan,XU Hongbin,ZHANG Yi. Determination and correlation of solubility of bismuth oxychloride in hydrochloric acid solution[J]. Journal of Chemical Industry and Engineering(China), 2014, 65(6): 1987-1992. DOI: 10.3969/j.issn.0438-1157.2014.06.006 | |
| Authors: | ZHANG Di XIAO Qinggui ZHANG Bingzhu XU Yongquan XU Hongbin ZHANG Yi |
| Affiliation: | 1. School of Chemical Engineering and Technology, Hebei University of Science Technology, Shijiazhuang 050018, Hebei, China;2. Key Laboratory of Green Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
| Abstract: | For bismuth oxychloride (BiOCl) precipitation from BiCl3-HCl-H2O system, it is important to obtain its solubility in hydrochloric acid solution and correlate the data between bismuth oxychloride solubility and some parameters, such as temperature and pH value. In this study, solubility of BiOCl in hydrochloric acid solution was experimentally determined by the equilibrium method in the temperature range from 303.15 to 363.15 K. The experimental data are correlated by Apelblat equation, Empirical equation and λh equation. The results show that BiOCl solubility increases with the increase of temperature and concentration of hydrochloric acid solution. The concentration of hydrochloric acid solution has greater effect than temperature on the solubility of BiOCl. The solubility data for BiCl3-HCl-H2O system are well correlated by Apelblat equation, Empirical equation and λh equation, with the fitting accuracies of 0.99, 0.98 and 0.93, respectively, among which Apelblat equation is the best. |
| Keywords: | bismuth oxychloride solubility equilibrium method correlation |
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