273.15K下Na+,K+//Cl-,SO42-,NO3-H2O五元体系的相平衡研究

引用本文: 廖玲, 黄雪莉. 273.15K下Na⁺,K⁺//Cl^-,SO₄^2-,NO₃^-H₂O五元体系的相平衡研究[J]. 化学通报, 2016, 79(1): 62-65,61. shu

Citation: Liao Ling, Huang Xueli. Liquid-Solid Phase Equilibria in the Quinary System ofNa⁺, K⁺//Cl^-, SO₄^2-, NO₃^--H₂O at 273.15 K[J]. Chemistry, 2016, 79(1): 62-65,61. shu

273.15K下Na⁺,K⁺//Cl^-,SO₄^2-,NO₃^-H₂O五元体系的相平衡研究

廖玲 ,
黄雪莉 ^,

1.
新疆煤炭洁净转化与化工过程重点实验室新疆大学化学化工学院乌鲁木齐 830046

通讯作者: 黄雪莉,女,博士,教授。E-mail:xuelih@163.com

基金项目:
国家自然科学基金项目（21166022)

新疆大学创新团队（培育）项目资助

摘要: 新疆盐湖资源丰富，冬季寒冷漫长，已有研究表明利用冬季冷能可以实现卤水浓淡分离。本文采用等温溶解平衡法针对新疆含硝酸盐卤水开发过程中涉及的Na⁺，K⁺//Cl^-，SO₄^2-，NO₃^-H₂O及Na⁺，K⁺//Cl^-，NO₃^-H₂O体系273.15K下的相平衡关系进行了研究。通过查找文献及实验获得两个体系各盐的溶解度及溶液密度，并绘制相图。研究表明，上述四元体系的干盐相图有2个零变量点、5条单变量溶解度曲线、4个单盐结晶区分别对应于NaNO₃、NaCl、KNO₃和KCl，与该体系在298.15K下的相图相比，硝酸钾结晶区扩大很多；上述五元体系干盐相图（NaCl饱和）有2个零变量点、5条单变量溶解度曲线、4个两盐结晶区分别对应于NaCl+NaNO₃，NaCl+Na₂SO₄·10H₂O，NaCl+KNO₃，NaCl+KCl，与该体系298.15K下的相图相比，复盐钾芒硝和钠硝矾结晶区消失，芒硝结晶区扩大，相图大为简化。

关键词:

硝酸盐
/ 水盐体系
/ 低温
/ 相平衡
/ 复盐

English

Liquid-Solid Phase Equilibria in the Quinary System ofNa⁺, K⁺//Cl^-, SO₄^2-, NO₃^--H₂O at 273.15 K

Liao Ling ,
Huang Xueli ^,

1.
Key Laboratory of Xinjiang Coal Clean Conversion and Chemical Process, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046

Corresponding author: 黄雪莉,女,博士,教授。E-mail:xuelih@163.com

Received Date: 24 April 2015
Fund Project:
国家自然科学基金项目（21166022)

新疆大学创新团队（培育）项目资助

Abstract: Xinjiang is rich in saline lake resources and has a long cold winter, some researches showed that brine can be separated by using cold energy in winter. The liquid-solid phase equilibriums of Na⁺, K⁺//Cl^-, SO₄^2-, NO₃^--H₂O and Na⁺, K⁺//Cl^-, NO₃^--H₂O systems were investigated by isothermal method at 273.15K. Based on the data of literatures and experiments, solubilities and densities of the two systems were received and the phase diagrams were plotted. The results showed that the phase diagram of the system Na⁺, K⁺//Cl^-, NO₃^--H₂O consists of two invariant points, five invariant curves and four crystallization regions corresponding to NaNO₃, NaCl, KNO₃ and KCl respectively. In addition, compared with the phase diagram of this quaternary system at 298.15K, the crystalline region of KNO₃ becomes larger. For the system Na⁺, K⁺//Cl^-, SO₄^2-, NO₃^--H₂O saturated with NaCl, the phase diagram consists of two invariant points, five invariant curves, four crystallization regions corresponding to NaCl+Na₂SO₄·10H₂O, NaCl+NaNO₃, NaCl+KNO₃, and NaCl+KCl respectively. Compared with the phase diagram of this system at 298.15K, it was more simple, in which the crystalline regions of double salts, glaserite and darapskite, disappear, and the Na₂SO₄·10H₂O crystalline region becomes larger.

Key words:

1. [1] 邱斌,葛文胜,曹洁.中国科技成果,2011(19):41~42.[1] 邱斌,葛文胜,曹洁.中国科技成果,2011(19):41~42.
2. [2] 郑绵平.矿床地质, 2001, 20(2):181~189.[2] 郑绵平.矿床地质, 2001, 20(2):181~189.
3. [3] K H Nelson, T G Thompson. Deposition of salts from sea water by frigid concentration. Seattle:Office of Naval Research, University of Washington Department of Oceanography, 1977:1~30.[3] K H Nelson, T G Thompson. Deposition of salts from sea water by frigid concentration. Seattle:Office of Naval Research, University of Washington Department of Oceanography, 1977:1~30.
4. [4] T G Thompson, K H Nelson. Am. J. Sci., 1956, 254(4):227~238.[4] T G Thompson, K H Nelson. Am. J. Sci., 1956, 254(4):227~238.
5. [5] K E Gitteman. Thermal analysis of sea water. Hanover:USA Cold Regions Research and Engineering Laboratory, 1937.[5] K E Gitteman. Thermal analysis of sea water. Hanover:USA Cold Regions Research and Engineering Laboratory, 1937.
6. [6] W E Ringer. Chem. Weekblad, 1906, (3):l~49.[6] W E Ringer. Chem. Weekblad, 1906, (3):l~49.
7. [7] 乌志明,邓小川.无机盐工业, 2001, 33(2):6~8.[7] 乌志明,邓小川.无机盐工业, 2001, 33(2):6~8.
8. [8] 乜贞,张永生,卜令忠等.地质通报,2005,24(4):386~390.[8] 乜贞,张永生,卜令忠等.地质通报,2005,24(4):386~390.
9. [9] 乌志明,郑绵平.无机化学学报, 2012, 28(5), 995~1000.[9] 乌志明,郑绵平.无机化学学报, 2012, 28(5), 995~1000.
10. [10] 黄雪莉.大连理工大学学位论文, 2008.[10] 黄雪莉.大连理工大学学位论文, 2008.
11. [11] 李亚文,韩蔚田.科学通报, 1998,43(19):2089~2091.[11] 李亚文,韩蔚田.科学通报, 1998,43(19):2089~2091.
12. [12] H L Silcock. Solubililies of Inorganic and Organic Compounds, Pergamon:Oxford, New York Pergamon Press, 1979, Vol. 1, 2, 3.[12] H L Silcock. Solubililies of Inorganic and Organic Compounds, Pergamon:Oxford, New York Pergamon Press, 1979, Vol. 1, 2, 3.
13. [13] 苏裕光,吕秉玲,王向荣.无机化工生产相图分析(一)理论基础. 北京,化学工业出版社, 1985:223~257.[13] 苏裕光,吕秉玲,王向荣.无机化工生产相图分析(一)理论基础. 北京,化学工业出版社, 1985:223~257.
14. [14] 张霞.新疆大学学位论文, 2014.[14] 张霞.新疆大学学位论文, 2014.
15. [15] 李松菀,黄雪莉,马凤云等.化学通报, 2008, 71(12):958~961.[15] 李松菀,黄雪莉,马凤云等.化学通报, 2008, 71(12):958~961.
16. [16] 中国科学院青海盐湖研究所分析室.卤水和盐的分析方法,北京:科学出版社, 1988.[16] 中国科学院青海盐湖研究所分析室.卤水和盐的分析方法,北京:科学出版社, 1988.
17. [17] GB/T 5750.5-2006生活饮用水标准检验方法无机非金属指标.[17] GB/T 5750.5-2006生活饮用水标准检验方法无机非金属指标.

扫一扫看文章

计量

PDF下载量: 0
文章访问数: 660
HTML全文浏览量: 94

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

273.15K下Na⁺,K⁺//Cl^-,SO₄^2-,NO₃^-H₂O五元体系的相平衡研究

通讯作者: 黄雪莉,女,博士,教授。E-mail:xuelih@163.com

English

Liquid-Solid Phase Equilibria in the Quinary System ofNa⁺, K⁺//Cl^-, SO₄^2-, NO₃^--H₂O at 273.15 K

Corresponding author: 黄雪莉,女,博士,教授。E-mail:xuelih@163.com

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

计量

通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处