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Maria Toikka - One of the best experts on this subject based on the ideXlab platform.
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phase equilibria liquid liquid for ternary systems n Amyl alcohol water acetic acid n Amyl Acetate n Amyl Acetate water acetic acid at 293 15 k 303 15 k 313 15 k and 323 15 k
Fluid Phase Equilibria, 2022Co-Authors: Georgii Misikov, Maria Toikka, Artemiy Samarov, A M ToikkaAbstract:Abstract Experimental data on liquid-liquid equilibrium for the ternary systems acetic acid – n-Amyl alcohol – water, acetic acid – n-Amyl Acetate – water, n-Amyl alcohol – n-Amyl Acetate – water and for the quaternary system acetic acid – n-Amyl alcohol – n-Amyl Acetate – water at 293.15 K, 303.15 K, 313.15 K and 323.15 K and atmospheric pressure were obtained by gas chromatography method. Phase diagrams are presented using Gibbs composition triangle and composition tetrahedron. Sufficient agreement of experimental tie-lines with calculated by NRTL model is observed: standard deviation does not exceed 1.2%.
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chemical equilibria in the quaternary reactive mixtures and liquid phase splitting a system with n Amyl Acetate synthesis reactions at 318 15 k and 101 3 kpa
Journal of Molecular Liquids, 2021Co-Authors: Alina Senina, Maria Toikka, Artemiy Samarov, A M ToikkaAbstract:Abstract A new set of experimental data on chemically equilibrium compositions for the acetic acid – n-Amyl alcohol – n-Amyl Acetate – water systems at 318.15 K and 101.3 kPa is presented. It was found that both homogeneous and heterogeneous regions of compositions correspond to the surface of chemical equilibrium. The values of compositions were obtained by gas chromatography analysis. The critical states of liquid-liquid equilibrium were experimentally determined by the “cloud point“ technique; the chemically equilibrium critical point was located. Corresponding diagrams in 3D (the composition tetrahedron) and 2D (the square of transformed compositions variables α) concentration spaces are constructed. The NRTL model was applied to correlate liquid-liquid equilibrium data. The concentration and thermodynamic constants of chemical equilibrium were calculated using UNIFAC model.
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solubility in the system acetic acid n Amyl alcohol n Amyl Acetate water at 293 15 k 303 15 k 313 15 k and 323 15 k and atmospheric pressure
The Journal of Chemical Thermodynamics, 2021Co-Authors: Maya Trofimova, Artemiy Samarov, Georgii Misikov, I V Prikhodko, Maria ToikkaAbstract:Abstract Solubility of the quaternary system acetic acid – n-Amyl alcohol – n-Amyl Acetate – water was investigated at 293.15 K, 303.15 K, 313.15 K, 323.15 K and atmospheric pressure. Binodal curves and binodal surfaces were determined using isothermal titration (cloud-point technique) and presented in composition simplices including 3D phase diagrams in composition tetrahedron. Binary mixtures were carried out by the gas chromatography method. Experimental data were predicted using UNIFAC model, and it was found that the calculating results of liquid–liquid equilibria (LLE) are in inconsistent agreement with the experimental data on solubility at all temperatures.
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solubility liquid liquid equilibrium and critical states for quaternary system acetic acid n Amyl alcohol n Amyl Acetate water at 303 15 k and atmospheric pressure
Fluid Phase Equilibria, 2018Co-Authors: Maria Toikka, Victoria Vernadskaya, Artemiy SamarovAbstract:Abstract The object of this study is multicomponent heterogeneous liquid-liquid system with n-Amyl Acetate synthesis reaction. New experimental data on solubility, liquid-liquid equilibrium (LLE) and critical compositions for acetic acid – n-Amyl alcohol – n-Amyl Acetate – water at 303.15 K and atmospheric pressure are presented. Solubility and critical states were investigated by “cloud-point technique” and pale opalescence blue methods accordingly. LLE compositions were determined by gas chromatography and correlated by NRTL model. Results calculated using NRTL modeling are in sufficient agreement with experimental data. Standard deviations for binary, ternary subsystems do not exceed 0.45% and for quaternary system investigated – 0.53%.
Artemiy Samarov - One of the best experts on this subject based on the ideXlab platform.
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phase equilibria liquid liquid for ternary systems n Amyl alcohol water acetic acid n Amyl Acetate n Amyl Acetate water acetic acid at 293 15 k 303 15 k 313 15 k and 323 15 k
Fluid Phase Equilibria, 2022Co-Authors: Georgii Misikov, Maria Toikka, Artemiy Samarov, A M ToikkaAbstract:Abstract Experimental data on liquid-liquid equilibrium for the ternary systems acetic acid – n-Amyl alcohol – water, acetic acid – n-Amyl Acetate – water, n-Amyl alcohol – n-Amyl Acetate – water and for the quaternary system acetic acid – n-Amyl alcohol – n-Amyl Acetate – water at 293.15 K, 303.15 K, 313.15 K and 323.15 K and atmospheric pressure were obtained by gas chromatography method. Phase diagrams are presented using Gibbs composition triangle and composition tetrahedron. Sufficient agreement of experimental tie-lines with calculated by NRTL model is observed: standard deviation does not exceed 1.2%.
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chemical equilibria in the quaternary reactive mixtures and liquid phase splitting a system with n Amyl Acetate synthesis reactions at 318 15 k and 101 3 kpa
Journal of Molecular Liquids, 2021Co-Authors: Alina Senina, Maria Toikka, Artemiy Samarov, A M ToikkaAbstract:Abstract A new set of experimental data on chemically equilibrium compositions for the acetic acid – n-Amyl alcohol – n-Amyl Acetate – water systems at 318.15 K and 101.3 kPa is presented. It was found that both homogeneous and heterogeneous regions of compositions correspond to the surface of chemical equilibrium. The values of compositions were obtained by gas chromatography analysis. The critical states of liquid-liquid equilibrium were experimentally determined by the “cloud point“ technique; the chemically equilibrium critical point was located. Corresponding diagrams in 3D (the composition tetrahedron) and 2D (the square of transformed compositions variables α) concentration spaces are constructed. The NRTL model was applied to correlate liquid-liquid equilibrium data. The concentration and thermodynamic constants of chemical equilibrium were calculated using UNIFAC model.
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solubility in the system acetic acid n Amyl alcohol n Amyl Acetate water at 293 15 k 303 15 k 313 15 k and 323 15 k and atmospheric pressure
The Journal of Chemical Thermodynamics, 2021Co-Authors: Maya Trofimova, Artemiy Samarov, Georgii Misikov, I V Prikhodko, Maria ToikkaAbstract:Abstract Solubility of the quaternary system acetic acid – n-Amyl alcohol – n-Amyl Acetate – water was investigated at 293.15 K, 303.15 K, 313.15 K, 323.15 K and atmospheric pressure. Binodal curves and binodal surfaces were determined using isothermal titration (cloud-point technique) and presented in composition simplices including 3D phase diagrams in composition tetrahedron. Binary mixtures were carried out by the gas chromatography method. Experimental data were predicted using UNIFAC model, and it was found that the calculating results of liquid–liquid equilibria (LLE) are in inconsistent agreement with the experimental data on solubility at all temperatures.
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solubility liquid liquid equilibrium and critical states for quaternary system acetic acid n Amyl alcohol n Amyl Acetate water at 303 15 k and atmospheric pressure
Fluid Phase Equilibria, 2018Co-Authors: Maria Toikka, Victoria Vernadskaya, Artemiy SamarovAbstract:Abstract The object of this study is multicomponent heterogeneous liquid-liquid system with n-Amyl Acetate synthesis reaction. New experimental data on solubility, liquid-liquid equilibrium (LLE) and critical compositions for acetic acid – n-Amyl alcohol – n-Amyl Acetate – water at 303.15 K and atmospheric pressure are presented. Solubility and critical states were investigated by “cloud-point technique” and pale opalescence blue methods accordingly. LLE compositions were determined by gas chromatography and correlated by NRTL model. Results calculated using NRTL modeling are in sufficient agreement with experimental data. Standard deviations for binary, ternary subsystems do not exceed 0.45% and for quaternary system investigated – 0.53%.
A M Toikka - One of the best experts on this subject based on the ideXlab platform.
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phase equilibria liquid liquid for ternary systems n Amyl alcohol water acetic acid n Amyl Acetate n Amyl Acetate water acetic acid at 293 15 k 303 15 k 313 15 k and 323 15 k
Fluid Phase Equilibria, 2022Co-Authors: Georgii Misikov, Maria Toikka, Artemiy Samarov, A M ToikkaAbstract:Abstract Experimental data on liquid-liquid equilibrium for the ternary systems acetic acid – n-Amyl alcohol – water, acetic acid – n-Amyl Acetate – water, n-Amyl alcohol – n-Amyl Acetate – water and for the quaternary system acetic acid – n-Amyl alcohol – n-Amyl Acetate – water at 293.15 K, 303.15 K, 313.15 K and 323.15 K and atmospheric pressure were obtained by gas chromatography method. Phase diagrams are presented using Gibbs composition triangle and composition tetrahedron. Sufficient agreement of experimental tie-lines with calculated by NRTL model is observed: standard deviation does not exceed 1.2%.
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chemical equilibria in the quaternary reactive mixtures and liquid phase splitting a system with n Amyl Acetate synthesis reactions at 318 15 k and 101 3 kpa
Journal of Molecular Liquids, 2021Co-Authors: Alina Senina, Maria Toikka, Artemiy Samarov, A M ToikkaAbstract:Abstract A new set of experimental data on chemically equilibrium compositions for the acetic acid – n-Amyl alcohol – n-Amyl Acetate – water systems at 318.15 K and 101.3 kPa is presented. It was found that both homogeneous and heterogeneous regions of compositions correspond to the surface of chemical equilibrium. The values of compositions were obtained by gas chromatography analysis. The critical states of liquid-liquid equilibrium were experimentally determined by the “cloud point“ technique; the chemically equilibrium critical point was located. Corresponding diagrams in 3D (the composition tetrahedron) and 2D (the square of transformed compositions variables α) concentration spaces are constructed. The NRTL model was applied to correlate liquid-liquid equilibrium data. The concentration and thermodynamic constants of chemical equilibrium were calculated using UNIFAC model.
Homu Lin - One of the best experts on this subject based on the ideXlab platform.
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multiphase coexistence for aqueous systems with Amyl alcohol and Amyl Acetate
Industrial & Engineering Chemistry Research, 2002Co-Authors: Mingjer Lee, Lihao Tsai, Guibing Hong, Homu LinAbstract:Phase equilibrium properties were measured with a newly designed apparatus for the mixtures of Amyl alcohol + water, Amyl Acetate + water, and water + Amyl alcohol + Amyl Acetate at vapor−liquid−liquid equilibrium (VLLE) conditions up to 393.15 K. The experimental data form a basis to evaluate the reliability of VLLE calculations with the φ−γ−γ method. It is found that the mutual solubility data can be correlated accurately by the NRTL model with temperature-dependent parameters for the binary aqueous systems over a wide temperature range. The saturated vapor compositions can also be calculated satisfactorily by using a two-term virial equation with one adjustable binary interaction parameter. The model parameters determined from the binary VLLE data of Amyl alcohol + water and Amyl Acetate + water and the binary vapor−liquid equilibrium (VLE) data of Amyl alcohol + Amyl Acetate are applicable to reproducing VLLE properties for the ternary system of water + Amyl alcohol + Amyl Acetate.
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simultaneous chemical and phase equilibria for mixtures of acetic acid Amyl alcohol Amyl Acetate and water
Industrial & Engineering Chemistry Research, 2000Co-Authors: Mingjer Lee, Chenhui Kang, Shaoling Chen, Homu LinAbstract:Phase compositions of simultaneous chemical and phase equilibria are measured with a static apparatus for the multicomponent system of acetic acid, Amyl alcohol, Amyl Acetate, and water at temperat...
Enn Siimer - One of the best experts on this subject based on the ideXlab platform.
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isobaric vapor liquid equilibria of the ternary system toluene ethylbenzene Amyl Acetate
Journal of Chemical & Engineering Data, 2004Co-Authors: Helle Kirss, And Mati Kuus, Enn SiimerAbstract:Isobaric vapor−liquid equilibria (VLE) was measured for the ternary system toluene + ethylbenzene + Amyl Acetate. Boiling temperature (T) − liquid composition (x) relations were obtained at (26.66, 53.33, and 79.99) kPa by using a semimicroebulliometer. The Wilson model was used to correlate the binary T−x data and to predict VLE in the ternary system.
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isobaric vapor liquid equilibria in the system o xylene Amyl Acetate nonane
Journal of Chemical & Engineering Data, 2001Co-Authors: Helle Kirss, Enn Siimer, And Mati Kuus, L KudryavtsevaAbstract:Isobaric vapor−liquid equilibria were measured for the system o-xylene + Amyl Acetate + nonane and for three constituent binary systems at the pressures 101.32, 79.99, 53.33, and 26.66 kPa. The measurements were made in a semi-microebulliometer. Nonane formed minimum boiling azeotropes with o-xylene and Amyl Acetate while the binary system o-xylene + Amyl Acetate was nonazeotropic. The Wilson model was used to correlate the binary boiling temperature (T)−composition (x) data. The T−x data of the ternary system were found to be well predicted by the Wilson model, giving significantly better results than the UNIFAC method.