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Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K

In view of the composition characteristics of lithium, calcium and bromine rich in Nanyishan oil and gas field brine of western Qaidam Basin, Qinghai Province, as well as based on the results reported in relevant literature, the phase equilibrium relationship of ternary system LiBr-CaBr(2)-H(2)O at...

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Autores principales: Cui, Ruizhi, Peng, Changwei, Nie, Guoliang, Sang, Shihua, Ren, Hongbao, Li, Wu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9974668/
https://www.ncbi.nlm.nih.gov/pubmed/36874070
http://dx.doi.org/10.3389/fchem.2023.1093435
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author Cui, Ruizhi
Peng, Changwei
Nie, Guoliang
Sang, Shihua
Ren, Hongbao
Li, Wu
author_facet Cui, Ruizhi
Peng, Changwei
Nie, Guoliang
Sang, Shihua
Ren, Hongbao
Li, Wu
author_sort Cui, Ruizhi
collection PubMed
description In view of the composition characteristics of lithium, calcium and bromine rich in Nanyishan oil and gas field brine of western Qaidam Basin, Qinghai Province, as well as based on the results reported in relevant literature, the phase equilibrium relationship of ternary system LiBr-CaBr(2)-H(2)O at 298.15 K was studied by isothermal dissolution equilibrium method. The equilibrium solid phase crystallization regions, as well as the compositions of invariant point, in phase diagram of this ternary system were clarified. On basis of the above ternary system research, the stable phase equilibria of quaternary systems (LiBr-NaBr-CaBr(2)-H(2)O, LiBr-KBr-CaBr(2)-H(2)O and LiBr-MgBr(2)-CaBr(2)-H(2)O), as well as quinary systems (LiBr-NaBr-KBr-CaBr(2)-H(2)O, LiBr-NaBr-MgBr(2)-CaBr(2)-H(2)O and LiBr-KBr-MgBr(2)-CaBr(2)-H(2)O) were further carried out at 298.15 K. According to the above experimental results, the corresponding phase diagrams at 298.15 K were drawn, which revealed the phase relationship of each component in solution and the law of crystallization and dissolution, and meanwhile summarized changing trends. The research results of this paper lay a foundation for further research on the multitemperature phase equilibria and thermodynamic properties of lithium and bromine containing high-component brine system in later stage, and also provide basic thermodynamic data for guiding the comprehensive development and utilization of this oil and gas field brine resource.
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spelling pubmed-99746682023-03-02 Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K Cui, Ruizhi Peng, Changwei Nie, Guoliang Sang, Shihua Ren, Hongbao Li, Wu Front Chem Chemistry In view of the composition characteristics of lithium, calcium and bromine rich in Nanyishan oil and gas field brine of western Qaidam Basin, Qinghai Province, as well as based on the results reported in relevant literature, the phase equilibrium relationship of ternary system LiBr-CaBr(2)-H(2)O at 298.15 K was studied by isothermal dissolution equilibrium method. The equilibrium solid phase crystallization regions, as well as the compositions of invariant point, in phase diagram of this ternary system were clarified. On basis of the above ternary system research, the stable phase equilibria of quaternary systems (LiBr-NaBr-CaBr(2)-H(2)O, LiBr-KBr-CaBr(2)-H(2)O and LiBr-MgBr(2)-CaBr(2)-H(2)O), as well as quinary systems (LiBr-NaBr-KBr-CaBr(2)-H(2)O, LiBr-NaBr-MgBr(2)-CaBr(2)-H(2)O and LiBr-KBr-MgBr(2)-CaBr(2)-H(2)O) were further carried out at 298.15 K. According to the above experimental results, the corresponding phase diagrams at 298.15 K were drawn, which revealed the phase relationship of each component in solution and the law of crystallization and dissolution, and meanwhile summarized changing trends. The research results of this paper lay a foundation for further research on the multitemperature phase equilibria and thermodynamic properties of lithium and bromine containing high-component brine system in later stage, and also provide basic thermodynamic data for guiding the comprehensive development and utilization of this oil and gas field brine resource. Frontiers Media S.A. 2023-02-15 /pmc/articles/PMC9974668/ /pubmed/36874070 http://dx.doi.org/10.3389/fchem.2023.1093435 Text en Copyright © 2023 Cui, Peng, Nie, Sang, Ren and Li. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Cui, Ruizhi
Peng, Changwei
Nie, Guoliang
Sang, Shihua
Ren, Hongbao
Li, Wu
Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K
title Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K
title_full Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K
title_fullStr Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K
title_full_unstemmed Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K
title_short Solid-liquid equilibria in relevant subsystems of LiBr-NaBr-KBr-MgBr(2)-CaBr(2)-H(2)O system at 298.15 K
title_sort solid-liquid equilibria in relevant subsystems of libr-nabr-kbr-mgbr(2)-cabr(2)-h(2)o system at 298.15 k
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9974668/
https://www.ncbi.nlm.nih.gov/pubmed/36874070
http://dx.doi.org/10.3389/fchem.2023.1093435
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