Experimental Data and Modeling of Viscosity in the Quinary System NaCl + KCl + CaCl2 + MgCl2 + H2O

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-21 DOI:10.1007/s10953-024-01400-9

Sheng Wang, Mengjie Luo, Yuzhu Sun, Congying Wang, Xingfu Song

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Abstract

The viscosities of the quinary system NaCl + KCl + CaCl₂ + MgCl₂ + H₂O and its binary subsystems are measured in the temperature range of 288.15 K-308.15 K. The viscosities of binary solutions of MgCl₂, NaCl, and CaCl₂ increase with the increase in concentration. In contrast, for the binary solution of KCl, the viscosity decreases with increasing concentration at low temperature and low concentration. The extended Jones–Dole model that incorporates higher-order term parameters is used to fit the viscosity of binary solutions, with a maximum Average Relative Deviation (ARD) of 1.42%. By comparing the values of the Pearson correlation coefficients, it is found that MgCl₂ has the most significant impact on the viscosity of the quinary system MgCl₂ + KCl + NaCl + CaCl₂ + H₂O, while the impact of KCl is the least. The modified extended Jones–Dole model, with the introduction of parameter G_i, can accurately predict the quinary system, resulting in a maximum AAD value of 0.63%. Moreover, the Hu model is also applied to predict the viscosity of the quinary system, achieving a maximum ARD value being 1.54%. Compared to the Hu model, the modified extended Jones–Dole model performs better. The viscosity calculation models for the quinary system MgCl₂ + KCl + NaCl + CaCl₂ + H₂O in this study contribute key parameters for the design and optimization of the potassium chloride production process.

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二元体系 NaCl + KCl + CaCl2 + MgCl2 + H2O 中粘度的实验数据和模型建立

在 288.15 K-308.15 K 的温度范围内测量了 NaCl + KCl + CaCl2 + MgCl2 + H2O 的二元体系及其二元子体系的粘度。相反，对于 KCl 的二元溶液，在低温和低浓度条件下，粘度随着浓度的增加而降低。采用包含高阶项参数的扩展琼斯-多尔模型来拟合二元溶液的粘度，其最大平均相对偏差（ARD）为 1.42%。通过比较皮尔逊相关系数值，发现 MgCl2 对 MgCl2 + KCl + NaCl + CaCl2 + H2O 二元体系的粘度影响最大，而 KCl 的影响最小。修改后的扩展琼斯-多尔模型引入了参数 Gi，可以准确地预测二元体系，其最大 AAD 值为 0.63%。此外，Hu 模型也可用于预测二元体系的粘度，其最大 ARD 值为 1.54%。与 Hu 模型相比，改进的扩展 Jones-Dole 模型的性能更好。本研究中的 MgCl2 + KCl + NaCl + CaCl2 + H2O 二元体系粘度计算模型为氯化钾生产工艺的设计和优化提供了关键参数。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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