Jia-Yue Wang, Yan Chen, Sen-Jian Han, Ya-Fei Guo, Shi-Qiang Wang
{"title":"Solid–Liquid Phase Equilibria in Ternary Aqueous Systems (LiB5O8 + KB5O8 + H2O) and (LiB5O8 + NaB5O8 + H2O) at 288.15 K and 0.1 MPa","authors":"Jia-Yue Wang, Yan Chen, Sen-Jian Han, Ya-Fei Guo, Shi-Qiang Wang","doi":"10.1134/S0036023624602861","DOIUrl":null,"url":null,"abstract":"<p>To achieve efficient separation of alkali metal borate resources from the brines of the salt lake to provide a theoretical basis, this paper adopts the isothermal dissolution equilibrium method to study the solid-liquid phase equilibrium and phase diagram of the ternary system (LiB<sub>5</sub>O<sub>8</sub> + KB<sub>5</sub>O<sub>8</sub> + H<sub>2</sub>O) and (LiB<sub>5</sub>O<sub>8</sub> + NaB<sub>5</sub>O<sub>8</sub> + H<sub>2</sub>O) at 288.15 K. The study grasps the changing law of solubility and physicochemical properties of the system, as well as analyses and identifies the solid phase in stable equilibrium. The results show that the stable phase diagrams of the two ternary systems at 288.15 K are of the simple eutectic type, containing one invariant point, two univariate saturated solubility curves, and two crystalline regions. Among them, the crystalline region of LiB<sub>5</sub>O<sub>8</sub>·5H<sub>2</sub>O is the smallest, indicating that it is not easy to precipitate from the saturated liquid phase, and the density and refractive index curves of each system show regular changes with the increase of LiB<sub>5</sub>O<sub>8</sub> content.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2124 - 2130"},"PeriodicalIF":1.8000,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Inorganic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0036023624602861","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
To achieve efficient separation of alkali metal borate resources from the brines of the salt lake to provide a theoretical basis, this paper adopts the isothermal dissolution equilibrium method to study the solid-liquid phase equilibrium and phase diagram of the ternary system (LiB5O8 + KB5O8 + H2O) and (LiB5O8 + NaB5O8 + H2O) at 288.15 K. The study grasps the changing law of solubility and physicochemical properties of the system, as well as analyses and identifies the solid phase in stable equilibrium. The results show that the stable phase diagrams of the two ternary systems at 288.15 K are of the simple eutectic type, containing one invariant point, two univariate saturated solubility curves, and two crystalline regions. Among them, the crystalline region of LiB5O8·5H2O is the smallest, indicating that it is not easy to precipitate from the saturated liquid phase, and the density and refractive index curves of each system show regular changes with the increase of LiB5O8 content.
期刊介绍:
Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.