Phase equilibria in quaternary system Li+, K+, Mg2+//B4O72--H2O at 273 K

doi:10.11949/j.issn.0438-1157.20161812

Abstract

Abstract:

The stable phase equilibria of the quaternary system Li⁺, K⁺, Mg²⁺//B₄O₇^2--H₂O at 273 K were studied using isothermal solubility equilibrium method. The solubility of the salts and densities in the system were determined, respectively. According to the experimental data and the corresponding equilibrium solid phase, the isothermal solubility diagram, water content diagram about the system Li⁺, K⁺, Mg²⁺//B₄O₇^2--H₂O at 273 K and the corresponding density composition diagram were plotted, respectively. Experimental results show that there are no complex salt or solid solution, and the system belongs to a simple eutectic type. The phase diagram is constituted by an invariant point, three univariant solubility curves and three solid phase crystalline regions. The three solid phases crystalline regions correspond to Li₂B₄O₇·3H₂O, K₂B₄O₇·4H₂O and MgB₄O₇·9H₂O. In addition, the density of saturated solution reached maximum at invariant point. Finally, a comparative analysis and discussion have been made in this paper for the stable phase diagrams of the system at 273 K, 288 K, and 348 K.

Key words: phase equilibrium, solubility, solution, lithium tetraborate, potassium tetraborate

摘要：

利用等温溶解平衡法研究了四元体系Li⁺， K⁺， Mg²⁺//B₄O₇^2--H₂O 273 K相平衡关系。测定了该体系平衡时各组分的溶解度和平衡液相密度。根据实验数据和固相组成分别绘制了四元体系Li⁺， K⁺， Mg²⁺//B₄O₇^2--H₂O 273 K时的稳定相图、水图以及相应的密度-组成图。结果表明：该体系组分之间没有形成复盐和固溶体，属于简单共饱和型体系；体系的稳定相图由1个共饱点，3条单变量曲线，3个固相结晶区组成，结晶区分别对应Li₂B₄O₇·3H₂O、K₂B₄O₇·4H₂O和MgB₄O₇·9H₂O；平衡液相密度在共饱点处达到最大。研究还对该四元体系在273 K、288 K和348 K不同温度时的稳定相图作了对比分析和讨论。

关键词: 相平衡, 溶解性, 溶液, 四硼酸锂, 四硼酸钾

CLC Number:

TQ131.1

SANG Shihua, ZHANG Tingting, FU Chao, YANG Lei. Phase equilibria in quaternary system Li⁺, K⁺, Mg²⁺//B₄O₇^2--H₂O at 273 K[J]. CIESC Journal, 2017, 68(9): 3343-3349.

桑世华, 张婷婷, 傅超, 杨磊. 四元体系Li⁺,K⁺,Mg²⁺//B₄O₇^2--H₂O 273 K相平衡[J]. 化工学报, 2017, 68(9): 3343-3349.

References 30

[1]	周园, 李丽娟, 吴志坚, 等. 青海盐湖资源开发及综合利用[J]. 化学进展, 2013, 25(10):16131624. ZHOU Y, LI L J, WU Z J, et al. Exploitation and comprehensive utilization for Qinghai salt lakes[J]. Progress in Chemistry, 2013, 25(10):16131624.
[2]	郑绵平, 卜令忠. 盐湖资源的合理开发与综合利用[J]. 矿产保护与利用, 2009, (1):1722. ZHENG M P, BU L Z. Rational development and comprehensive utilization of salt lakes resources[J]. Conservation and Utilization of Mineral Resources, 2009, (1):1722.
[3]	张杰, 史学伟, 赵双良, 等. 水盐体系相平衡研究进展[J]. 化工学报, 2016, 67(2):379-389. ZHANG J, SHI X W, ZHAO S L, et al. Progress in study on phase equilibria of salt-water systems[J]. CIESC Journal, 2016, 67(2):379-389.
[4]	李冰, 孙柏, 房春晖, 等. 含锂盐湖卤水体系相关系的研究[J]. 盐湖研究, 1995, 3(2):34-39. LI B, SUN B, FANG C H, et al. Study on the phase equilibria of salt lake containing lithium[J]. Journal of Salt Lake Science, 1995, 3(2):34-39.
[5]	孙柏, 宋彭生, 杜宪惠. 盐湖卤水体系Li+, Mg2+//Cl-, SO42-, borate-H2O的研究[J]. 盐湖研究, 1994, 2(4):26-30. SUN B, SONG P S, DU X H. Solubilities and properties of solution in the reciprocal system Li+, Mg2+//Cl-, SO42-, borate-H2O at 25℃[J]. Journal of Salt Lake Science, 1994, 2(4):26-30.
[6]	SANG S H, PENG J. (Solid+liquid) equilibria in the quinary system Na+, Mg2+, K+//SO42-, B4O72--H2O at 288 K[J]. Computer Coupling of Phase Diagrams and Thermochemistry, 2010, 34:64-67.
[7]	李冰, 孙柏, 房春晖, 等. 五元体系Li+, Na+, K+, Mg2+//SO42--H2O 25℃相关系的研究[J]. 化学学报, 1997, (6):545-552. LI B, SUN B, FANG C H, et al. Studies on the phase diagram for the quinary system Li+, Na+, K+, Mg2+//SO42--H2O at 25℃[J]. Acta Chimica Sinica, 1997, (6):545-552.
[8]	孙柏, 李冰, 房春晖. 五元交互体系Li+, K+, Mg2+//Cl-, SO42--H2O 25℃相关系和溶液物化性质的研究[J]. 盐湖研究, 1995, 3(4):50-56. SUN B, LI B, FANG C H. Studies on the phase diagram and solution properties for the quinary system Li+, K+, Mg2+//Cl-, SO42--H2O at 25℃[J]. Journal of Salt Lake Science, 1995, 3(4):50-56.
[9]	金作美, 周惠南, 王励生. Na+, K+, Mg2+//Cl-, SO42--H2O五元体系35℃介稳相图研究[J]. 高等学校化学学报, 2001, 22(4):634-638. JING Z M, ZHOU H N, WANG L S. Studies on the metastable phase equilibrium of Na+, K+, Mg2+//Cl-, SO42--H2O quinary system at 35℃[J]. Chemical Journal of Chinese Universities, 2001, 22(4):634-638.
[10]	LIU Y H, GUO Y F, YU X P, et al. Solid-liquid metastable phase equilibria in the five-component system (Li+Na+K+Cl+SO4+H2O) at 308.15 K[J]. J. Chem. Eng. Data, 2014, 59:1685-1691.
[11]	殷辉安, 桑世华, 唐明林, 等. 288 K下Li+, K+//CO32-, B4O72--H2O四元体系的相平衡[J]. 化工学报, 2004, 55(3):464-467. YIN H A, SANG S H, TANG M L, et al. Equilibrium of quaternary system Li+, K+//CO32-, B4O72--H2O at 288 K[J]. Journal of Chemical Industry and Engineering (China), 2004, 55(3):464-467.
[12]	曹丽娜, 李珑, 张楠, 等. 四元体系LiCl-LiBO2-Li2SO4-H2O在298.15 K时的相平衡[J]. 化工学报, 2015, 67(4):1117-1122. CAO L N, LI L, ZHANG N, et al. Phase equilibria of quaternary system LiCl-LiBO2-Li2SO4-H2O at 298.15 K[J]. CIESC Journal, 2015, 67(4):1117-1122.
[13]	桑世华, 雷泞菲, 崔瑞芝, 等. 五元体系Li+, K+//CO32-, SO42-, B4O72--H2O 273 K介稳相平衡研究[J]. 高校化学工程学报, 2014, 28(1):21-26. SANG S H, LEI N F, CUI R Z, et al. A Study on the metastable equilibria of the quinary system Li+, K+//CO32-, SO42-, B4O72--H2O at 273 K[J]. Journal of Chemical Engineering of Chinese Universities, 2014, 28(1):21-26.
[14]	WANG R L, ZENG Y. Metastable phase equilibrium of the quinary aqueous system Li++K++Cl-+CO32-+B4O72-+H2O at 273.15 K[J]. J. Chem. Eng. Data, 2014, 59:903-911.
[15]	ZENG Y, FENG S, ZHENG Z Y. Metastable equilibrium of the salt lake brine system Na+, K+//CO32-, SO42-, B4O72--H2O at 273.15 K[J]. J. Chem. Eng. Data, 2010, 55(12):5834-5838.
[16]	曾英, 林晓峰, 孟世军. 四元体系Li+, K+//CO32-, B4O72--H2O 273 K介稳相平衡研究[J]. 化学工程, 2008, 36(9):47-50. ZENG Y, LIN X F, MENG S J. Study on metastable phase equilibrium of quaternary system Li+, K+//CO32-, B4O72--H2O at 273 K[J]. Chemical Engineering (China), 2008, 36(9):47-50.
[17]	WANG S Q, GUO Y F, DENG T L. Solubility prediction for the reciprocal quaternary system Li+, Mg2+//Cl-, SO42--H2O at 273.15 K using pitzer ion-interaction model[J]. Advanced Materials Research. 2012, 549:437-440.
[18]	ZHOU H Y, ZENG D W, HAN H J, et al. Solubility isotherm of the system Li2SO4-K2SO4-MgSO4-H2O at 273.15 K[J]. J. Chem. Eng. Data, 2013, 58:1692-1696.
[19]	PENG Y, ZENG Y, SU S. Metastable phase equilibrium and solution properties of the quaternary system Li+, K+//Cl-, and SO42--H2O at 273.15 K[J]. J. Chem. Eng. Data, 2011, 56:458-463.
[20]	曾英, 王瑞林, 林晓峰, 等. Na+, K+//Cl-, B4O72--H2O四元体系273 K介稳相平衡[J]. 物理化学学报, 2008, 24(3):471-474. ZENG Y, WANG R L, LIN X F, et al. Metastable phase equilibria of the quaternary system Na+, K+//Cl-, B4O72--H2O at 273 K[J]. Acta Phys. -Chim. Sin., 2008, 24(3):471-474.
[21]	ZENG Y, CAO F J, LI L G, et al. Metastable phase equilibrium in the aqueous quaternary system (Li2SO4+Na2SO4+Li2B4O7+Na2B4O7+ H2O) at 273.15 K[J]. J. Chem. Eng. Data, 2011, 56:2569-2573.
[22]	桑世华, 殷辉安, 倪师军, 等. K2B4O7-Na2B4O7-Li2B4O7-H2O四元体系273 K介稳相平衡[J]. 物理化学学报, 2007, 23(8):1285-1287. SANG S H, YIN H A, NI S J, et al. Metastable equilibrium solubilities of solutions in the quaternary system of K2B4O7-Na2B4O7-Li2B4O7-H2O at 273 K[J]. Acta Phys. -Chim. Sin. 2007, 23(8):1285-1287.
[23]	张婷婷, 桑世华, 傅超, 等. 三元体系Li2B4O7-K2B4O7-H2O 273 K稳定相平衡研究[J]. 化学工程, 2017, 45(3):37-41. ZHANG T T, SANG S H, FU C, et al. Phase equilibrium in Li2B4O7-K2B4O7-H2O aqueous ternary system at 273 K[J]. Chemical Engineering (China), 2017, 45(3):37-41.
[24]	FU C, SANG S H, ZHOU M F, et al. Phase equilibria in the ternary systems Li2B4O7-MgB4O7-H2O and K2B4O7-MgB4O7-H2O at 273 K[J]. J. Chem. Eng. Data, 2016, 61:1071-1077.
[25]	肖龙军, 桑世华, 赵相颇. Li2B4O7-K2B4O7-MgB4O7-H2O四元体系288 K相平衡研究[J]. 盐业与化工, 2010, 39(1):18-20. XIAO L J, SANG S H, ZHAO X P. Study on phase equilibrium of the quartemary system Li2B4O7-K2B4O7-MgB4O7-H2O at 288 K[J]. Journal of Salt and Chemical Industry, 2010, 39(1):18-20.
[26]	TAN Q, ZENG Y, MU P T, et al. Stable phase equilibrium of aqueous quaternary system Li+, K+, Mg2+//borate-H2O at 348 K[J]. J. Chem. Eng. Data, 2014, 59:4173-4178.
[27]	牛自得, 程芳琴. 水盐体系相图及其应用[M]. 天津:天津大学出版社, 2002:172-182. NIU Z D, CHENG F Q. The Phase Diagrams of Salt-Water Systems and Its Applications[M]. Tianjin:Tianjin University Press, 2002:172-182.
[28]	中科院青海盐湖所. 卤水和盐的分析方法[M]. 北京:科学与技术出版社, 1984:75-78. Institute of Qinghai Salt-Lake of Chinese Academy of Sciences. Analytical Methods of Brines and Salts[M]. Beijing:Chinese Science Press, 1984:75-78.
[29]	景燕. 合成章氏硼镁石的新方法[J]. 海湖盐与化工, 1999, 29(2):24-25. JING Y. A new synthesis method for magnesium borate[J]. Sea-Lake Salt & Chemical, 1999, 29(2):24-25.
[30]	孟令宗, 邓天龙. 含硼资源开发的有关相化学研究进展[J]. 世界科技研究与发展, 2008, 30(1):16-20. MENG L Z, DENG T L. Progresses on phase chemistry for the boron resource development[J]. World Sci-Tech. R&D, 2008, 30(1):16-20.

Phase equilibria in quaternary system Li⁺, K⁺, Mg²⁺//B₄O₇^2--H₂O at 273 K

四元体系Li⁺,K⁺,Mg²⁺//B₄O₇^2--H₂O 273 K相平衡

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References 30

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Minghui CHANG, Lin WANG, Jiajia YUAN, Yifei CAO. Study on the cycle performance of salt solution-storage-based heat pump [J]. CIESC Journal, 2023, 74(S1): 329-337.
[2]	Chao HU, Yuming DONG, Wei ZHANG, Hongling ZHANG, Peng ZHOU, Hongbin XU. Preparation of high-concentration positive electrolyte of vanadium redox flow battery by activating vanadium pentoxide with highly concentrated sulfuric acid [J]. CIESC Journal, 2023, 74(S1): 338-345.
[3]	Zhenghao JIN, Lijie FENG, Shuhong LI. Energy and exergy analysis of a solution cross-type absorption-resorption heat pump using NH₃/H₂O as working fluid [J]. CIESC Journal, 2023, 74(S1): 53-63.
[4]	Runmiao GAO, Mengjie SONG, Enyuan GAO, Long ZHANG, Xuan ZHANG, Keke SHAO, Zekang ZHEN, Zhengyong JIANG. Review on greenhouse gas reduction related to refrigerants in cold chain [J]. CIESC Journal, 2023, 74(S1): 1-7.
[5]	Ruimin CHE, Wenqiu ZHENG, Xiaoyu WANG, Xin LI, Feng XU. Research progress on homogeneous processing of cellulose in ionic liquids [J]. CIESC Journal, 2023, 74(9): 3615-3627.
[6]	Xiaosong CHENG, Yonggao YIN, Chunwen CHE. Performance comparison of different working pairs on a liquid desiccant dehumidification system with vacuum regeneration [J]. CIESC Journal, 2023, 74(8): 3494-3501.
[7]	Xudong YU, Qi LI, Niancu CHEN, Li DU, Siying REN, Ying ZENG. Phase equilibria and calculation of aqueous ternary system KCl + CaCl₂ + H₂O at 298.2, 323.2, and 348.2 K [J]. CIESC Journal, 2023, 74(8): 3256-3265.
[8]	Ji CHEN, Ze HONG, Zhao LEI, Qiang LING, Zhigang ZHAO, Chenhui PENG, Ping CUI. Study on coke dissolution loss reaction and its mechanism based on molecular dynamics simulations [J]. CIESC Journal, 2023, 74(7): 2935-2946.
[9]	Ke CHEN, Li DU, Ying ZENG, Siying REN, Xudong YU. Phase equilibria and calculation of quaternary system LiCl+MgCl₂+CaCl₂+H₂O at 323.2 K [J]. CIESC Journal, 2023, 74(5): 1896-1903.
[10]	Xuan ZHOU, Mengya LI, Jie SUN, Zhenkai CEN, Qiangsan LYU, Lishan ZHOU, Haitao WANG, Dandan HAN, Junbo GONG. The regulation mechanism of additives on the amino acid crystal growth [J]. CIESC Journal, 2023, 74(2): 500-510.
[11]	Yu XIE, Min ZHANG, Weiguo HU, Yujun WANG, Guangsheng LUO. Study on efficient dissolution of D-7-ACA using membrane dispersion microreactor [J]. CIESC Journal, 2023, 74(2): 748-755.
[12]	Wenting CHENG, Jie LI, Li XU, Fangqin CHENG, Guoji LIU. Experiment and prediction for the solubility of AlCl₃·6H₂O in FeCl₃, CaCl₂, KCl and KCl-FeCl₃solutions [J]. CIESC Journal, 2023, 74(2): 642-652.
[13]	Yuxin REN, Runfeng XU, Wanying WANG, Pengzhong CHEN, Xiaojun PENG. Synthesis and stability study of anthraquinone dyes for color photoresist [J]. CIESC Journal, 2022, 73(5): 2251-2261.
[14]	Jiaren ZHANG, Haichao LIU. Phase equilibrium of transesterification reaction system between soybean oil and methanol [J]. CIESC Journal, 2022, 73(5): 1920-1929.
[15]	Wenxin MEN, Qingshou PENG, Xia GUI. Phase equilibrium of CO₂ hydrate in the presence of four different quaternary ammonium salts [J]. CIESC Journal, 2022, 73(4): 1472-1482.