Examples



mdbootstrap.com



 
Статья
2021

Solubilities of Salts in Quaternary System KBr–K2SO4–K2B4O7–H2O and Quinary System KCl–KBr–K2SO4–K2B4O7–H2O at 373 K


Guo-Liang NieGuo-Liang Nie, Shi-Hua SangShi-Hua Sang, Chao YeChao Ye, Yun-Yun GaoYun-Yun Gao, Chun-Xia HeChun-Xia He
Российский журнал физической химии А
https://doi.org/10.1134/S0036024421070189
Abstract / Full Text

The underground brines are large reserves of valuable mineral resources. Aiming at the underground brines of western Sichuan Basin, the phase equilibria of quinary system KCl–KBr–K2SO4–K2B4O7–H2O and its quaternary subsystem KBr–K2SO4–K2B4O7–H2O were studied by using the method of isothermal dissolution equilibrium at 373 K. The phase diagrams, water content diagrams and density-composition relationship diagrams of above two systems were plotted by using the experimental data, respectively. The results show that the quaternary system KBr–K2SO4–K2B4O7–H2O belongs to a simple type; it consists of three univariant curves, one invariant point and three crystallization regions (K2B4O7⋅4H2O, K2SO4, and KBr). The equilibrium phase diagram (saturated with K2SO4) in the quinary system KCl–KBr–K2SO4–K2B4O7–H2O is a type of solid solution, and there are two crystallization regions (K2B4O7⋅4H2O, solid solution K(Cl,Br)) (saturated with K2SO4), one univariant curve and no invariant point.

Author information
  • College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, 610059, Chengdu, P. R. ChinaGuo-Liang Nie, Shi-Hua Sang, Chao Ye, Yun-Yun Gao & Chun-Xia He
  • Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, 610059, Chengdu, P. R. ChinaGuo-Liang Nie, Shi-Hua Sang, Chao Ye, Yun-Yun Gao & Chun-Xia He
References
  1. Y. T. Lin and S. L. Chen, J. Salt Lake Res. 16, 1 (2008).
  2. Y. T. Lin, J. Salt Lake Res. 9, 56 (2001).
  3. Y. T. Lin, J. Salt Lake Res. 14, 1 (2006).
  4. Y. Zeng and Z. Y. Zheng, J. Chem. Eng. Data 55, 1623 (2010).
  5. S. H. Sang, H. A. Yin, and W. Z. Xing, J. Chem. Thermodyn. 38, 173 (2006).
  6. S. Y. Yan, H. A. Yin, C. L. Yuan, M. L. Tang, Q. Liang, and K. S. Chen, J. Chengdu Univ. Technol., Sci. Technol. Ed. 34, 103 (2007).
  7. Y. H. Liu, T. L. Deng, and P. S. Song, J. Chem. Eng. Data 56, 1139 (2011).
  8. B. Hu, P. S. Song, Y. H. Li, and W. Li, CALPHAD 31, 541 (2007).
  9. T. L. Deng and D. C. Li, Fluid Phase Equilib. 269, 98 (2008).
  10. X. L. Huang and S. W. Li, Chin. J. Chem. Eng. 19, 101 (2011).
  11. P. S. Song and Y. Yao, CALPHAD 25, 329 (2001).
  12. Y. B. Weng, J. K. Wang, Q. Q. Yin, and Y. F. Wang, J. Chem. Eng. Chin. Univ. 21, 695 (2007).
  13. K. J. Zhang, S. H. Sang, D. Wang, and J. J. Zhang, J. Salt Lake Res. 35, 5 (2011).
  14. Y. X. Hu, S. H. Sang, R. Z. Cui, and S. Y. Zhong, J. Chem. Eng. Data 59, 802 (2014).
  15. Y. X. Hu, S. H. Sang, R. Z. Cui, and S. Y. Zhong, Chin. Sci. Paper 8, 847 (2013).
  16. Y. X. Hu, S. H. Sang, R. Z. Cui, and Y. Wang, J. Chem. Eng. Data 59, 1886 (2014).
  17. R. Z. Cui, S. H. Sang, and Y. X. Hu, J. Chem. Eng. Data 58, 477 (2013).
  18. R. Z. Cui, S. H. Sang, and Q. Liu, J. Chem. Eng. Data 61, 444 (2016).