四元体系NaCl+NaBO2+Na2CO3+H2O 298.15 K 相平衡研究

doi:10.19964/j.issn.1006-4990.2021-0782

Abstract

Abstract:

There were abundant ions in the salt lake of Qaidam,and the water salt phase diagram of a quaternary system was studied.The phase equilibrium of NaCl+NaBO₂+Na₂CO₃+H₂O at 298.15 K was studied by isothermal solution equilibrium method,the composition,density and refractive index of the equilibrium liquid phase of the system were measured.The phase diagram of the quaternary system of NaCl+NaBO₂+Na₂CO₃+H₂O 298.15 K and its corresponding physico-chemical properties were drawn.It was found that the system of NaCl+NaBO₂+Na₂CO₃+H₂O at 298.15 K contained two saturation points （E₁,E₂）,five solubility curves（AE₁,BE₁,CE₂,DE₂,E₁E₂）,four crystallization regions（NaCl,NaBO₂·4H₂O,Na₂CO₃·7H₂O,NaCl·NaBO₂·2H₂O）.In the ternary system NaCl+NaBO₂+H₂O,double salt NaCl·NaBO₂·2H₂O was produced at 298.15 K.The study showed that the quaternion system of NaCl+NaBO₂+Na₂CO₃+H₂O also had NaCl·NaBO₂·2H₂O double salt region at 298.15 K.

Key words: phase equilibrium, quaternary system, solubility, salt lake

CLC Number:

TQ131.12

MA Yujun,WANG Xiao,LI Shuya,ZHANG Fukang,LI Juan. Phase equilibria of quaternary system of NaCl+NaBO₂+Na₂CO₃+H₂O at 298.15 K[J]. Inorganic Chemicals Industry, 2022, 54(10): 42-46.

Figures/Tables 6

Table 1

Fig.1

Fig.2

Table 2

Fig.3

Fig.4

References 14

[1]	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.
[2]	赵露, 王晓, 马玉军, 等. 西台吉乃尔湖尾闾盐沼区水资源中有价元素分布特征研究[J].青海大学学报, 2020, 38(3): 101-106.
	ZHAO Lu, WANG Xiao, MA Yujun, et al.Distribution characteristics of valuable elements in water resources from the downstream salt marsh of West Taijinar Lake[J].Journal of Qinghai University, 2020, 38(3): 101-106.
[3]	张福祥, 赵莎, 刘卓, 等. 全球硼矿资源现状与利用趋势[J].矿产保护与利用, 2019, 39(6): 142-151.
	ZHANG Fuxiang, ZHAO Sha, LIU Zhuo, et al.Current situation and utilization trend of the global boron resources[J].Conservation and Utilization of Mineral Resources, 2019, 39(6): 142-151.
[4]	焦森, 郑厚义, 屈云燕, 等. 全球硼矿资源供需形势分析[J].国土资源情报, 2020(10): 85-89.
	JIAO Sen, ZHENG Houyi, QU Yunyan, et al.Supply and demand situation of global boron resources[J].Land and Resources Information, 2020(10): 85-89.
[5]	YUAN Fei, LI Hua, LI Long, et al.Solid-liquid phase equilibria of the ternary system（KBO₂+K₂SO₄+H₂O） at 288.15,308.15 K,and 0.1 MPa[J].Journal of Chemical & Engineering Data, 2021, 66(4): 1703-1708.
[6]	WANG Shiqiang, SHI Chuncheng, YANG Juan, et al.Solid-liquid phase equilibria in the ternary systems（LiBO₂+NaBO₂+H₂O） and （LiBO₂+KBO₂+H₂O） at 288.15 K and 0.1 MPa[J].Journal of Solution Chemistry, 2020, 49(3): 353-364.
[7]	LI Jun, GAO Shiyang, XIA Shuping, et al.Thermochemistry of hydrated magnesium borates[J].The Journal of Chemical Thermodynamics, 1997, 29(4): 491-497.
[8]	CHEN Shangqing, WANG Mengxue, HU Jiayin, et al.Phase equilibria in the aqueous ternary systems（NaCl+NaBO₂+H₂O） and （Na₂SO₄+NaBO₂+H₂O） at 298.15 K and 0.1 MPa[J].Journal of Chemical and Engineering Data（the ACS Journal for Data）, 2018, 63(12): 4662-4668.
[9]	CUI Wanjing, HOU Hongfang, HU Jiayin, et al.Phase equilibria and phase diagrams for the aqueous ternary system containing sodium,chloride,and metaborate ions at 288.15 and 308.15 K and 0.1 MPa[J].Journal of Chemistry, 2019.Doi:10.1155/2019/ 1983051 . doi: 10.1155/2019/ 1983051
[10]	YANG Lan, LI Dan, ZHANG Tao, et al.Thermodynamic phase equilibria in the aqueous ternary system NaCl-NaBO₂-H₂O:Experimental data and solubility calculation using the Pitzer mo-del[J].The Journal of Chemical Thermodynamics, 2020,142.Doi:10.1016/j.jct.2019.106021 . doi: 10.1016/j.jct.2019.106021
[11]	BU Baihui, LI Long, ZHANG Nan, et al.Solid-liquid metastable phase equilibria for the ternary system（Li₂SO₄+K₂SO₄+H₂O） at 288.15 and 323.15 K,p=0.1 MPa[J].Fluid Phase Equilibria, 2015, 402: 78-82.
[12]	WANG Shiqiang, YANG Juan, SHI Chuncheng, et al.Solubilities,densities,and refractive indices in the ternary systems（LiBO₂+NaBO₂+H₂O） and（LiBO₂+KBO₂+H₂O） at 298.15 K and 0.1 MPa[J].Journal of Chemical & Engineering Data, 2019, 64(7): 3122-3127.
[13]	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].2版.北京:科学出版社, 1988.
[14]	杨琴, 李君, 李恒欣, 等. 三元体系Na₂B₄O₇-NaHCO₃-H₂O和Na₂CO₃-NaBO₂-H₂O等温溶解度研究[J].盐湖研究, 2001, 9(4): 24-29.
	YANG Qin, LI Jun, LI Hengxin, et al.Study on the isothermal solubility for the ternary system Na₂B₄O₇-NaHCO₃-H₂O and Na₂CO₃-NaBO₂-H₂O[J].Journal of Salt Lake Research, 2001, 9(4): 24-29.

编号	w（液相组成）/%				J（干盐指数）/%				平衡相组成
编号	NaCl	NaBO₂	Na₂CO₃		NaCl	NaBO₂	Na₂CO₃	H₂O	平衡相组成
A	15.4	0.00	17.50	46.80		0.00	53.190	203.95	NCl+NC
1	14.6	1.55	17.30	43.64		4.63	51.710	198.95	NCl+NC
2	14.78	2.87	17.15	42.47		8.24	49.280	187.35	NCl+NC
3	13.55	3.70	16.72	39.88		10.89	49.210	194.37	NCl+NC
B	23.48	5.57	0.00	80.83		19.17	0.000	244.23	NClB
4	22.43	5.35	2.97	72.94		17.39	9.650	225.20	NClB
5	19.92	5.11	5.84	64.52		16.55	18.910	223.93	NClB
6	19.57	5.08	7.66	60.56		15.72	23.700	209.50	NClB
7	18.40	5.01	9.34	56.18		15.29	28.510	205.34	NClB
8	17.10	4.81	11.12	51.77		14.56	33.660	202.75	NClB
9	16.20	4.50	13.40	47.50		13.19	39.290	193.25	NClB
10	14.20	4.10	15.30	42.26		12.20	45.535	197.61	NClB
E₁	13.88	3.86	16.80	40.18		11.17	48.639	189.51	NClB+NC
C	12.54	17.13	0.00	42.26		57.70	0.000	237.04	NClB
12	12.09	16.65	0.68	41.09		56.59	2.310	239.90	NClB
13	11.90	15.25	4.39	37.72		48.35	13.910	217.05	NClB
14	9.38	14.51	6.55	30.81		47.66	21.510	228.51	NClB
15	9.14	13.80	9.38	28.27		42.69	29.020	209.40	NClB
16	8.80	13.40	10.99	26.51		40.37	33.110	201.29	NClB
17	7.79	12.40	13.88	22.86		36.39	40.730	193.51	NClB
18	5.80	12.40	15.40	17.26		36.90	45.830	197.61	NClB
E₂	5.33	12.18	16.80	15.53		35.49	48.960	191.46	NClB+NC
D	0.00	12.40	18.60	0.00		40.00	60.000	222.58	NB+NC
20	1.39	12.30	18.40	4.33		38.32	57.330	211.62	NB+NC
21	2.32	12.22	18.00	7.12		37.55	55.310	207.31	NB+NC
22	5.10	12.19	17.67	14.50		34.86	50.540	186.04	NB+NC
23	5.33	12.18	16.80	15.53		35.49	48.960	191.46	NClB+NC
24	12.03	6.81	17.02	33.53		19.01	47.450	178.01	NClB+NC

序号	液相组成 w（NaBO₂）/ %	折光率 n_D	密度ρ/ （g·cm^-3）	序号	液相组成 w（NaBO₂）/ %	折光率 n_D	密度ρ/ （g·cm^-3）
A	0	—	—	12	16.65	1.395 9	1.297 5
1	1.55	1.398 0	1.319 0	13	15.25	1.399 5	1.324 8
2	2.87	1.400 4	1.334 7	14	14.51	1.399 7	1.335 0
3	3.70	1.401 2	1.337 1	15	13.80	1.400 6	1.337 3
B	5.57	—	—	16	13.40	1.401 7	1.346 7
4	5.35	1.391 0	1.259 3	17	12.40	1.403 4	1.359 6
5	5.11	1.392 6	1.275 6	18	12.40	1.405 4	1.370 9
6	5.08	1.394 2	1.285 2	E₂	12.18	1.408 4	1.390 1
7	5.01	1.395 0	1.294 8	D	12.40	—	—
8	4.81	1.397 0	1.305 6	20	12.30	1.406 5	1.378 0
9	4.50	1.398 4	1.316 5	21	12.22	1.407 5	1.387 4
10	4.10	1.399 8	1.328 0	22	12.19	1.408 0	1.387 4
E₁	3.86	1.400 6	1.337 8	23	12.18	1.408 5	1.390 2
C	17.13	—	—	24	6.81	—	—

[1]	YU Xudong, LI Jing, REN Siying, LUO Jun, ZENG Ying. Study on solid-liquid phase equilibrium of Li⁺，K⁺，Ca²⁺//Cl^--H₂O quaternary system at 298.2 K [J]. Inorganic Chemicals Industry, 2025, 57(3): 30-35.
[2]	DONG Nan, WANG Nan, JI Lijun, SHENG Yong. Determination of potassium salt solubility at low temperature and study of liquid fertilizer formula [J]. Inorganic Chemicals Industry, 2025, 57(2): 92-97.
[3]	KONG Lingjie, LI Guangbi, XIE Jiahao, YANG Xinhui, BAI Xiaoqin. Research progress on lithium extraction technology from salt lake brine [J]. Inorganic Chemicals Industry, 2025, 57(1): 14-26.
[4]	SU Hang, SONG Jitian, HUANG Zhiqiang, DONG Qing, ZHANG Yaxiong. Study on crystallization kinetics of manganese sulfate monohydrate in H₂SO₄-H₂O binary system [J]. Inorganic Chemicals Industry, 2024, 56(8): 40-46.
[5]	GUO Kaihua, FAN Yuxin, YANG Jing, ZHAO Wenli, JIA Yuanyuan, WANG Yanfei. Analysis of effect of carnallite raw ore grade on its cold decomposition and crystallization of potassium chloride [J]. Inorganic Chemicals Industry, 2024, 56(8): 9-18.
[6]	LIU Kailong, ZHU Kongyi, GUO Chunlei, MA Xiaobiao, WANG Yujian, SHENG Qiang, LI Xiang, WANG Yinbin, JIN Fengying. Effects of process condition on performance of diesel aromatic to light aromatic [J]. Inorganic Chemicals Industry, 2024, 56(6): 139-146.
[7]	CHENG Chunchun, LI Yulong, ZHANG Zhiqiang, LIU Xuejing. Study on dissolution crystallization for extraction of potassium and separation of magnesium and lithium from salt lake brine [J]. Inorganic Chemicals Industry, 2024, 56(6): 34-39.
[8]	YANG Yousheng, YAO Zhihao, ZHAO Zhixing, FENG Xia, ZENG Ying, YU Xudong. Research progress of lithium-rich sulfate type salt lake brine evaporation experiment [J]. Inorganic Chemicals Industry, 2024, 56(4): 1-7.
[9]	WEI Jincai, CHEN Jingyuan, SONG Guichun, JIA Jiantuan, GONG Guoli. Study on efficiency of liquefaction mining of solid potassium ore in western Qarhan area of Qarhan Salt Lake [J]. Inorganic Chemicals Industry, 2024, 56(3): 70-79.
[10]	YANG Bo, MA Zhen, ZENG Ying, YAN Xiongzhong, LI Qi, HOU Yuansheng, YU Xudong. Study on solid-liquid phase equilibria in ternary system of Li⁺（K⁺），Rb⁺//Cl^--H₂O at 288.2 K [J]. Inorganic Chemicals Industry, 2024, 56(11): 116-122.
[11]	FENG Xia, YU Xuefeng, YAO Zhihao, LUO Jun, REN Siying, ZHAO Zhixing, YU Xudong. Study on phase equilibria of aqueous ternary system of Na⁺（Mg²⁺），Ca²⁺∥Cl^--H₂O at 278.2 K [J]. Inorganic Chemicals Industry, 2024, 56(1): 47-52.
[12]	FU Yu, DENG Mi, HUANG Donggen, WAN Jinbao. Research progress of lithium extraction technology from salt lake brine [J]. Inorganic Chemicals Industry, 2023, 55(9): 9-16.
[13]	LI Yan, MA Zhen, SONG Xingfu. New development advance and industrial development proposals of chloride-type salt lake potassium resources in Qinghai [J]. Inorganic Chemicals Industry, 2023, 55(8): 84-90.
[14]	LU Nana, QIN Yaru, MA Shuqing, WANG Qihui, LIU Bing, SHI Chenglong. Study on extraction of lithium from simulated old brine of salt lake by pyridine ionic liquid system [J]. Inorganic Chemicals Industry, 2023, 55(7): 45-50.
[15]	WANG Jiming, NIE Zhen, FAN Fu, GUO Tingfeng, HAN Jiahuan. Study on potassium and lithium resource loss in brine of West Taijinar Salt Lake and simulated evaporation process [J]. Inorganic Chemicals Industry, 2023, 55(5): 31-38.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Phase equilibria of quaternary system of NaCl+NaBO₂+Na₂CO₃+H₂O at 298.15 K

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 6

References 14

Related Articles 15

Metrics

Comments

Recommended 0

Phase equilibria of quaternary system of NaCl+NaBO2+Na2CO3+H2O at 298.15 K