| 水热条件硼酸镁盐过饱和水溶液的相转化 |
| |
| 引用本文： | 周建国,闫长领,卢雁,高世扬,夏树屏. 水热条件硼酸镁盐过饱和水溶液的相转化[J]. 物理化学学报, 2004, 20(3): 306-308. DOI: 10.3866/PKU.WHXB20040318 |
| |
| 作者姓名： | 周建国 闫长领 卢雁 高世扬 夏树屏 |
| |
| 作者单位： | College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453002;Department of Chemistry, Lanzhou University 730000;Xi’an Branch, Institute of Salt Lake, Chinese Academy of Sciences, Xi’an 710043 |
| |
| 基金项目： | 国家自然科学基金(20271051)，河南省自然科学基金(0111030200)，河南省高校青年骨干教师资助计划项目~~ |
| |
| 摘 要： | 针对中国盐湖硼资源特点,模拟合成MgO•3B2O3-H2O过饱和溶液,在120 ℃水热条件下对固相析出的过程进行跟踪.析出固相采用化学分析方法、X射线衍射、红外光谱进行物相鉴定.对析出固相的相转化反应机理进行了探讨,结合有关实验分析了MgSO4对固相析出的影响.
|
| 关 键 词： | 水热条件 过饱和溶液 硼酸镁盐 相转化 |
| 收稿时间： | 2003-07-09 |
| 修稿时间： | 2003-07-09 |
Phase Transformation of Supersaturated Solution of MgO·3B2O3-H2O under Hydrothermal Condition |
| |
| Zhou Jian-Guo, Yan Chang-Ling Lu Yan Gao Shi-Yang ,, Xia Shu-Ping. Phase Transformation of Supersaturated Solution of MgO·3B2O3-H2O under Hydrothermal Condition[J]. Acta Physico-Chimica Sinica, 2004, 20(3): 306-308. DOI: 10.3866/PKU.WHXB20040318 |
| |
| Authors: | Zhou Jian-Guo Yan Chang-Ling Lu Yan Gao Shi-Yang Xia Shu-Ping |
| |
| Affiliation: | College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453002;Department of Chemistry, Lanzhou University 730000;Xi’an Branch, Institute of Salt Lake, Chinese Academy of Sciences, Xi’an 710043 |
| |
| Abstract: | Supersaturated solution of MgO•3B2O3-H2O was prepared and kept under hydrothermal condition at 120 ℃.The solid phases separated from MgO•3B2O3-H2O supersaturated solution were identified by means of chemical analysis, XRD and IR. The process was a phase transformation of Mg-borates. Two amorphous intermediate-products are 2MgO•3B2O3•5H2O and MgO•B2O3•3H2O and the final product is the crystalling 2MgO•B2O3•H2O.The mechanism of phase transformation was proposed and the function of MgSO4 in the supersaturated solution of MgO•3B2O3-18％MgSO4-H2O was discussed. |
| |
| Keywords: | Hydrothermal condition Supersaturated solution Mg-borate Phase transformation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
|
点击此处可从《物理化学学报》下载全文 |
|
