Macroscopic thermodynamic properties of ionic micellar solutions depending on physicochemical formulation for the sodium dodecyl sulfate/sodium sulfate/water/n-heptane/1-pentanol system

被引:1
作者
Marfisi-Valladares, Shirley [1 ]
Correa, Angiemar [1 ]
Kluchuikon, Michael [1 ]
Cova-Bonillo, Alexis [1 ,2 ]
Patino-Camino, Rayda [1 ,3 ]
Lobo, Mario [4 ]
Lopez, Jose [1 ]
机构
[1] Univ Oriente, Escuela Ingn & Ciencias Aplicadas, Nucl Anzoategui, Grp Sistemas Dispersos & Electroquim,Lab Sistemas, Barcelona, Venezuela
[2] Univ Birmingham, Dept Mech Engn, Edgbaston, England
[3] Univ Castilla La Mancha, Escuela Tecn Super Ingn Ind, Edificio Politecn, Ciudad Real, Spain
[4] Serv Enviroil CA, Unidad Invest & Desarrollo, Lab Formulac Tensioact, Barcelona, Venezuela
关键词
formulation; Gibbs free energy; micelle; surfactant; thermodynamic; ULTRALOW INTERFACIAL-TENSION; ENHANCED OIL-RECOVERY; SURFACTANT FORMULATION; OPTIMUM FORMULATION; 3-PHASE BEHAVIOR; ATTAIN;
D O I
10.1002/jsde.12833
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
This work characterized the macroscopic thermodynamic properties of ionic micellar solutions. Formulation-composition studies were done along one dimension by varying the salinity (S) or oil-water ratio (WOR) in mixtures of sodium dodecyl sulfate, sodium sulfate, water, n-heptane, and 1-pentanol at 25 degrees C and 1 atm. Material balance and multiple regression models were used to get the partial, mixed, and excess molar volumes. The UNIFAC local composition model, coupled with Debye-H & uuml;ckel theory, was employed to calculate activity coefficients and dimensionless Gibbs energies (partial, mixed, and excess). The equilibrium SOW systems exhibited phase transitions (WI-WIII-WII), with micellar solubilization increasing as salinity increased at constant WOR. Solubilization peaked at the optimal formulation, and further increases in WOR enhanced solubilization up to the formation of a single-phase system. Deviations from ideal behavior, in the thermodynamic properties between aqueous and oil micellar solutions, were mainly due to chemical interaction of solutes (gamma not equal 1$$ \gamma \ne 1\operatorname{} $$) respect to solvents (gamma -> 1$$ \gamma \to 1\operatorname{} $$). Negative values of the Gibbs energy of mixing confirmed the stability of the liquid phases and their extension to the liquid-liquid equilibrium. The response surfaces V = f(WOR, S) and GE/RT = f(WOR, S) represent the macroscopic thermodynamic behavior of micellar solutions as a function of physicochemical formulation. These results can be extended to other colloidal systems for the design of formulations with surfactants and anionic salts, oriented to the diagnosis and resolution of problems in real systems, both at laboratory and industrial level.
引用
收藏
页码:689 / 704
页数:16
相关论文
共 48 条
[1]  
Alauddin J, 2020, Journal of Scientific Research, V12, P419, DOI [10.3329/jsr.v12i3.44614, 10.3329/jsr.v12i3.44614, DOI 10.3329/JSR.V12I3.44614]
[2]  
Antony J., 2023, DESIGN EXPT ENG SCI, P65, DOI [10.1016/B978-0-443-15173-6.00009-3, DOI 10.1016/B978-0-443-15173-6.00009-3]
[3]  
Bourrel M., 2010, Microemulsions and Related Systems, formulation, solvency, and physical properties
[4]   Activity Coefficients from an Equation of State: Novel Approach for Fast Phase Equilibrium Calculations [J].
Chapman, Walter G. ;
Fouad, Wael A. .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2021, 60 (48) :17733-17744
[5]   Experimental Data of Fluid Phase Equilibria- Correlation and Prediction Models: A Review [J].
Domanska, Urszula .
PROCESSES, 2019, 7 (05)
[6]  
Fernández-d’Arlas Bidegain Borja, 2022, Educ. quím, V33, P29, DOI [10.22201/fq.18708404e.2022.1.79063, 10.22201/fq.18708404e.2022.1.79063]
[7]  
Fernndezd'Arlas B., 2016, QU MICA, V112, P79
[8]   Formulation Improvements in the Applications of Surfactant-Oil-Water Systems Using the HLDN Approach with Extended Surfactant Structure [J].
Forgiarini, Ana M. ;
Marquez, Ronald ;
Salager, Jean-Louis .
MOLECULES, 2021, 26 (12)
[9]   GROUP-CONTRIBUTION ESTIMATION OF ACTIVITY-COEFFICIENTS IN NONIDEAL LIQUID-MIXTURES [J].
FREDENSLUND, A ;
JONES, RL ;
PRAUSNITZ, JM .
AICHE JOURNAL, 1975, 21 (06) :1086-1099
[10]   Group contribution-based property estimation methods: advances and perspectives [J].
Gani, Rafiqul .
CURRENT OPINION IN CHEMICAL ENGINEERING, 2019, 23 :184-196