三元体系K +,Cs +//SO4 2--H2O 298.2 K稳定相平衡研究

Abstract

Abstract:

The stable phase equilibrium of the ternary system K ⁺,Cs ⁺//SO₄ ^2--H₂O has been studied using the isothermal dis-solution method at 298.2 K.The solubilities,densities and refractive indices of the equilibrated solution were determined experimentally.The results showed that the ternary system was of complex type with solid solution [（K,Cs）₂SO₄] formed at 298.2 K,and with the largest crystalline region for the solid solution [（K,Cs）₂SO₄].The stable phase diagram of this ternary system contained three univariant curves,three crystalline zones and two invariant points.The mass fraction composition of the two invariant points were w（K₂SO₄） 11.69%、w（Cs₂SO₄） 4.02% and w（K₂SO₄） 3.39%、w（Cs₂SO₄） 60.84%,respectively. The density and refractive index of the solution increased along with the increase of the Cs₂SO₄ contents.Furthermore,the empirical equation developed in the previous study was used to calculate refractive index of the equilibrated solutions,the calculated values results indicated good consistency with the experimental values.

Key words: stable phase equilibrium, potassium sulfate, cesium sulfate, solid solution

CLC Number:

Wu Linxin,Zeng Ying,Chen Peijun,Huang Peng,Chen Yu,Sun Jiu,Yu Xudong. Stable phase equilibrium of the ternary system K ⁺,Cs ⁺//SO₄ ^2--H₂O at 298.2 K[J]. Inorganic Chemicals Industry, 2019, 51(6): 17-20.

Figures/Tables 5

References 26

[1]	卢靖, 王颖松, 蒋育澄 , 等. 金属铯的生物化学研究进展[J]. 稀有金属, 2006,30(5):682-687.
[2]	黄万抚, 李新冬 . 铯的用途与提取分离技术研究现状[J]. 稀有金属与硬质合金, 2003,31(3):18-20.
[3]	董普, 肖荣阁 . 铯盐应用及铯(碱金属)矿产资源评价[J]. 中国矿业, 2005,14(2):30-34.
[4]	Merbach A, Gonella J . Contribution à l′étude du système quaternaire KCl-RbCl-H₂O:Ⅰ.Les isothermes de 25° des systèmes ternaires limites[J]. Helvetica Chimica Acta, 1969,52(1):69-76.
[5]	Merbach A, Gonella J . Contribution à l′étude du système quaternaire KCl-RbCl-CsCl-H₂O:Ⅱ.L′isotherme de 25 ℃[J]. Helvetica Chi-mica Acta, 1971,54(5):1380-1389.
[6]	Yu X, Zeng Y, Yao H , et al. Metastable phase equilibria in the aque-ous ternary systems KCl+MgCl₂+H₂O and KCl+RbCl+H₂O at 298.15 K[J]. Journal of Chemical & Engineering Data, 2011,56(8):3384-3391.
[7]	宝阿敏, 钱志强, 郑红 , 等. 铷、铯的分离提取方法及其研究进展[J]. 应用化工, 2017,46(7):1377-1382.
[8]	汪傲, 赵元艺, 许虹 , 等. 青藏高原盐湖资源特点概述[J]. 盐湖研究, 2016,24(3):24-29.
[9]	郑绵平, 侯献华 . 青海盐湖资源综合利用与可持续发展战略[J]. 科技导报, 2017,35(12):11-13.
[10]	冯凯, 孙亚猛, 袁梦 , 等. 以盐湖高含泥提钾尾矿制备微孔分子筛的研究[J]. 无机盐工业, 2018,50(5):76-80.
[11]	宋彭生, 李武, 孙柏 , 等. 盐湖资源开发利用进展[J]. 无机化学学报, 2011,27(5):801-815.
[12]	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.
[13]	伍倩, 乜贞, 卜令忠 , 等. 三元体系Li⁺,K⁺//CO₃^2--H₂O 298.15 K稳定相平衡研究[J]. 无机盐工业, 2018,50(6):28-31.
[14]	Hu M C, Zhang W J, Li S N , et al. Thermodynamic investigation of a ternary mixed electrolyte(CsCl/MgCl₂/H₂O) system using electro-motive force measurement at 298.15 K[J]. Journal of Chemical & Engineering Data 2009,54(7):2023-2027.
[15]	Balarew Chr, Christov Chr, Valyashko Vl , et al. Thermodynamics of formation of carnallite type double salts[J]. Journal of Solution Chemistry, 1993,22(2):173-181. doi: 10.1007/BF00650683
[16]	Li Y, Song P, Xia S , et al. Effects of Pitzer mixing parameters on the solubility prediction of HCl-CsCl-H₂O system at 25 ℃[J]. Russian Journal of Inorganic Chemistry, 2006,51(10):1659-1663. doi: 10.1134/S0036023606100238
[17]	Hu B, Song P, Li Y , et al. Solubility prediction in the ternary systems NaCl-RbCl-H₂O,KCl-CsCl-H₂O and KBr-CsBr-H₂O at 25 ℃ using the ion-interaction model[J]. Calphad-Computer Coupling of Phase Diagrams and Thermochemistry, 2007,31(4):541-544. doi: 10.1016/j.calphad.2007.03.002
[18]	Guo L, Wang Y, Tu L , et al. Thermodynamics and phase equilibrium of the system CsCl-MgCl₂-H₂O at 298.15 K[J]. Journal of Chemi-cal & Engineering Data, 2017,62(4):1397-1402.
[19]	Zhang Y M, Ma L C, Liu C L , et al. Phase diagram and research for the ternary system of NaCl-CsCl-H₂O at 50 ℃[J]. Advanced Ma-terials Research, 2013, 706-708:193-196.
[20]	保英莲, 孙海霞, 曹红翠 , 等. Pitzer混合参数对CsCl-Cs₂SO₄-H₂O体系25 ℃时溶解度预测的影响[J]. 盐业与化工, 2012,41(10):17-19.
[21]	Hu B, Song P, Li Y . Solubility prediction of CsCl-Cs₂SO₄-H₂O system at 298.15 K using the ion-interaction model[J]. The Open Thermo-dynamics Journal, 2007,1:1-3.
[22]	中国科学院青海盐湖研究所分析室. 卤水和盐的分析方法[M]. 北京: 科学出版社, 1988.
[23]	姚允斌, 解涛 . 物理化学手册[M]. 上海: 上海科学技术出版社, 1985.
[24]	金利华 . 稀碱金属铯盐在脂肪醇水体系的等温相行为及热力学研究[D]. 西安:陕西师范大学, 2006.
[25]	秦善 . 晶体学基础[M]. 北京: 北京大学出版社, 2004.
[26]	Gao Y, Li S, Zhai Q , et al. Phase diagrams and physicochemical pro-perties for the ternary system(CsCl+NaCl+H₂O) at T=(298.15,308.15,and 318.15) K[J]. Journal of Chemical & Engineering Data, 2017,62(9):2533-2540.

体系	数据来源	液相组成w/%	平衡固相
K₂SO₄-H₂O	文献值[12]	10.75	K₂SO₄
K₂SO₄-H₂O	实验值	10.93	K₂SO₄
Cs₂SO₄-H₂O	文献值[24]	64.20	Cs₂SO₄
Cs₂SO₄-H₂O	文献值	64.63	Cs₂SO₄

编号	ρ/ （g·cm^-3）	n_D	液相组成 w（M）/%		固相组成 w（M）/%		平衡固相
编号	ρ/ （g·cm^-3）	n_D	K₂SO₄	Cs₂SO₄	K₂SO₄	Cs₂SO₄	平衡固相
1,A	1.081 5	1.345 2	10.93	0.00	0.00	0.00	Ar
2	1.096 2	1.346 1	11.93	1.68	88.32	0.27	Ar
3	1.111 9	1.346 8	11.98	3.21	84.28	0.58	Ar
4	1.119 7	1.347 5	11.78	3.55	84.21	0.66	Ar
5,E₁	1.124 6	1.348 1	11.69	4.02	80.50	0.94	Ar+AC
6	1.154 9	1.351 1	10.51	8.36	92.91	1.74	AC
7	1.221 2	1.355 9	10.10	15.01	94.24	3.10	AC
8	1.271 9	1.358 7	9.71	18.42	87.37	4.42	AC
9	1.292 5	1.360 5	9.31	22.24	88.87	4.89	AC
10	1.389 2	1.368 2	8.72	33.69	88.44	5.70	AC
11	1.405 3	1.369 7	8.46	35.39	87.46	6.68	AC
12	1.460 2	1.374 0	7.85	39.64	86.30	8.43	AC
13	1.479 7	1.375 7	7.53	40.17	83.31	7.93	AC
14	1.531 8	1.379 8	7.01	45.18	83.96	9.43	AC
15	1.592 4	1.383 2	6.60	48.68	87.97	9.02	AC
16	1.953 5	1.406 9	3.95	58.92	84.12	13.34	AC
17	1.998 7	1.410 2	3.56	60.99	42.17	39.30	AC
18,E₂	1.998 5	1.409 6	3.39	60.84	0.60	92.67	Cs+AC
19	2.008 7	1.410 5	0.96	62.37	0.34	88.62	Cs
20	2.005 2	1.409 9	0.71	63.96	0.11	94.57	Cs
21,B	2.016 2	1.409 5	0.00	64.63	0.00	0.00	Cs

编号	实验值	计算值	相对误差	编号	实验值	计算值	相对误差
1,A	1.345 2	1.345 2	0.000 0	12	1.374 0	1.388 6	-0.010 7
2	1.346 1	1.348 3	-0.001 7	13	1.375 7	1.388 9	-0.009 6
3	1.346 8	1.350 2	-0.002 5	14	1.379 8	1.394 3	-0.010 5
4	1.347 5	1.350 4	-0.002 1	15	1.383 2	1.398 1	-0.010 8
5,E₁	1.348 1	1.350 8	-0.001 8	16	1.406 9	1.407 3	-0.000 3
6	1.351 1	1.354 5	-0.002 5	17	1.410 2	1.409 4	0.000 6
7	1.355 9	1.361 9	-0.004 4	18,E₂	1.409 6	1.409 0	0.000 4
8	1.358 7	1.365 5	-0.005 0	19	1.410 5	1.407 9	0.001 8
9	1.360 5	1.369 5	-0.006 6	20	1.409 9	1.409 5	0.000 2
10	1.368 2	1.382 5	-0.010 5	21,B	1.409 5	1.409 5	0.000 0
11	1.369 7	1.384 3	-0.010 6

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Stable phase equilibrium of the ternary system K ⁺,Cs ⁺//SO₄ ^2--H₂O at 298.2 K

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 5

References 26

Related Articles 15

Metrics

Comments

Recommended 10

[1]	Yang Jiamin,Zhu Jing,Hu Xue,Wu Qiang,Li Tianxiang. Determination and correlation for solid-liquid phase equilibrium of ternary KCl-NH₄Cl-H₂O and KH₂PO₄-NH₄H₂PO₄-H₂O systems at 283.15 K [J]. Inorganic Chemicals Industry, 2021, 53(1): 30-35.
[2]	Zhang Peng,Zhang Yu,Duan Jiangfei,Lin Xiaohua. Research on synthesis of barium sulfate by ion-exchange method [J]. Inorganic Chemicals Industry, 2020, 52(5): 40-44.
[3]	Liao Enxin,Chen Lifang,Zhang Zeya,Bai Fengxia. Experimental study on preparing potassium sulfate by sodium sulfate and potassium chloride [J]. Inorganic Chemicals Industry, 2020, 52(10): 106-109.
[4]	Chen Xia,Bai Fengxia,Shi Yapeng,Dong Sicheng,Liao Enxin,Li Ying,Miao Shulan. Experimental research of preparation of potassium sulfate from high-salt wastewater in coal chemical industry by double decomposition method [J]. Inorganic Chemicals Industry, 2019, 51(6): 57-61.
[5]	Zhang Pingjun,Yu Shujuan. Online analysis on effect of ethanol and ultrasonic wave on crystal nucleus of potassium sulfate [J]. Inorganic Chemicals Industry, 2019, 51(6): 65-68.
[6]	CHEN Wen-Xing, TIAN Juan, ZHOU Chang-Ping. Preparation technology of potassium sulfate with insoluble potassium contained shale [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(7): 42-.
[7]	HUA Zong-Wei, ZHONG Hong, WANG Shuai, JIANG Chong-Wen. Research progress of production technology of potassium sulfate [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(4): 1-.
[8]	LU Qi-Fu, SANG Shi-Hua, ZHANG Hai, LI Ting. Research of phase equilibrium in ternary system KBr-K2SO4-H2O at 373 K [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(2): 13-.
[9]	ZHU Zhi-Qing, WANG Ke. Preparation of potassium sulphate from separation of mixed solution of potassium and sodium salts with improved methanol salting-out method [J]. INORGANICCHEMICALSINDUSTRY, 2013, 45(7): 18-.
[10]	CHEN Ju-Ling, XIAO Jing-Bo, WANG Wei-Dong. Study on joint-production technology of magnesium compound and potassium sulfate from dolomite [J]. INORGANICCHEMICALSINDUSTRY, 2013, 45(7): 35-.
[11]	ZHANG Yu-Cui. Discussion on water balance for production of potassium sulfate by Glauber′s salt method [J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(3): 36-.
[12]	DONG Zhan-Neng, HAO Shi-Yong, DENG Lai. Study on one-stage process of producing potassium sulfate fertilizer from phosphogypsum [J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(11): 52-.
[13]	LIU Bin, YU Shao-Ming, ZHANG Ying, CHENG Lei-Lei, CHA Cai-Cun. Study on comprehensive recovery and utilization of waste vanadium catalyst [J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(11): 57-.
[14]	LI Chun-Li, ZHANG Zhi-Qiang, GUAN Yun-Shan, XING Ying, WANG Juan, ZHANG Ying-Zhi, HE Quan-Sheng. Study on preparation of potassium dihydrogen phosphate with calcium hydrogen phosphate Ⅰ [J]. INORGANICCHEMICALSINDUSTRY, 2011, 43(7): 48-.
[15]	Yang Lihong. Application of stirring equipment in production of potassium sulfate by mirabilite process [J]. INORGANICCHEMICALSINDUSTRY, 2010, 0(9): 0-0.

Stable phase equilibrium of the ternary system K +,Cs +//SO4 2--H2O at 298.2 K