Thermodynamic properties for the aqueous solutions of cesium borates at 298.15 K and 101 kPa: Experimental and correlation by Pitzer ion-interaction model

2020 ◽  
Vol 318 ◽  
pp. 114272
Author(s):  
Kangrui Sun ◽  
Siyu Du ◽  
Yanqin Meng ◽  
Hanyu Zheng ◽  
Yafei Guo ◽  
...  
Keyword(s):  
Thermodynamic Properties ◽  
Aqueous Solutions ◽  
Interaction Model ◽  
Ion Interaction Model

scholarly journals Evaluation of energy consumption during the seawater desalination process simulated to the aqueous ternary system {NaCl + KCl}(aq)

2021 ◽  
Vol 314 ◽  
pp. 08001
Author(s):  
Abdelkbir Errougui ◽  
Asmaa Benbiyi ◽  
Mohamed El Guendouzi
Keyword(s):  
Energy Consumption ◽  
Ternary System ◽  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Interaction Model ◽  
Industrial Applications ◽  
Environmental Processes ◽  
Theoretical Energy Consumption ◽  
Ion Interaction Model ◽  
Scientific Fields

Energy consumption is a purely thermodynamic concept very useful in several scientific fields such as desalination, oceanography, biology, geochemistry and environmental processes, as well as in industrial applications. In this investigation, based on a thermodynamic approach, the calculation of energy consumption was evaluated during the desalination of seawater simulated to the aqueous ternary system {NaCl + KCl}(aq). The mixing ionic parameters, obtained in our previous work, are used to predict the osmotic and activity coefficients in the aqueous solutions at different salinities ranging from 3.6 up to 72 g.L-1 at T = 298.15 K using the ion interaction model. The theoretical energy consumption of desalination was calculated at various salinities and recovery ratios.

Solubility Prediction for the Reciprocal Quaternary System (Li+, Mg2+//Cl-, SO42-–H2O) at 273.15 K Using Pitzer Ion-Interaction Model

2012 ◽  
Vol 549 ◽  
pp. 437-440 ◽  
Author(s):  
Shi Qiang Wang ◽  
Ya Fei Guo ◽  
Tian Long Deng
Keyword(s):  
Quaternary System ◽  
Salt Lake ◽  
Interaction Model ◽  
Linear Regression Method ◽  
Solubility Prediction ◽  
Temperature Dependent ◽  
Solubility Predictions ◽  
Multiple Linear Regression Method ◽  
Ion Interaction Model ◽  
Salt Lake Brine

Solubilities of the reciprocal quaternary system (Li+, Mg2+//Cl-, SO42-–H2O) at 273.15K were calculated using Pitzer and its extended HW model. The values of the Pitzer single-salt parameters β(0), β(1), β(2)and Cφfor LiCl, MgCl2, Li2SO4, and MgSO4, the mixed ion-interaction parameters θLi,Mg, θCl,SO4, ψLi,Mg,Cl, ψLi,Mg,SO4, ψLi,Cl,SO4and ψMg,Cl,SO4, and the Debye–Hückel parameter Aφin the system at 273.15K were derived either temperature-dependent equation or through fitting solubility data of the ternary system by multiple linear regression method. Based on the Jänecke indexes, the phase diagram was plotted. This study affords the necessary parameters for solubility predictions of complicated systems and establishes a theoretical basis for the separation of these valuable minerals from salt lake brine.

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