| 三元体系Li2SO4-Li2B4O7-H2O在323．15K时相平衡研究 |
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| 引用本文： | 师秀云,;李丹,;邓天龙.三元体系Li2SO4-Li2B4O7-H2O在323．15K时相平衡研究[J].海湖盐与化工,2009(4):22-24. |
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| 作者姓名： | 师秀云 ;李丹 ;邓天龙 |
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| 作者单位： | [1]中国科学院青海盐湖研究所,青海西宁810008; [2]中国科学院研究生院,北京100039 |
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| 基金项目： | 国家自然科学基金（20836009,40773045）、中科院百人计划择优资助项目（0560051057）和博士学科点基金（20060616004）资助 |
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| 摘 要： | 采用等温溶解平衡法研究了三元体系Li2SO4-Li2B4O7-H2O在323．15K时的溶解度及其平衡溶液的密度、pH性质，根据实验数据绘制了相应的平衡相图及其物化性质组成图。研究结果表明：该三元体系在323．15K时有2个结晶相区（Li2B4O7·3H2O和Li2SO4·H2O）、2条单变量溶解度曲线、1个共饱点，属简单共饱型。
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| 关 键 词： | 三元体系 相平衡 溶解度 硼酸锂 |
Phase Equilibria of the Ternary System Li2SO4-Li2B4O7-H2O at 323.15K |
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| Affiliation: | SHI Xiuyun, LI Dan , DENG Tianlong ( 1. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining Qinghai 810008, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China) |
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| Abstract: | Solubilities and solution properties （density, pH） of the ternary system Li2SO4-Li2B4O7-H2O at 323.15 K were studied by isothermal solution equilibrium method, and the equilibrium phase diagram and the composition diagram physieochemieal properties were plotted based on this experimental data. The experimental phase diagram shows that there are two univariant curves, one invariant point and two crystallization fields corresponding to Li2B4O7.3H2O and Li2SO4 . H2O in the ternary system Li2SO4-Li2B4O7-H2O at 323. 15 K, and it belongs to the simplified type of co - saturated ternary system obviously. |
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| Keywords: | ternary system phase equilibrium solubility lithium borate |
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