Evaluation of Liquid-Liquid Extraction Process for Separating Acrylic Acid Produced From Renewable Sugars

Abstract

In this article, the separation and the purification of the acrylic acid produced from renewable sugars were studied using the liquid-liquid extraction process. Nonrandom two-liquids and universal quasi-chemical models and the prediction method universal quasi-chemical functional activity coefficients were used for generating liquid-liquid equilibrium diagrams for systems made up of acrylic acid, water, and solvents (diisopropyl ether, isopropyl acetate, 2-ethyl hexanol, and methyl isobutyl ketone) and the results were compared with available liquid-liquid equilibrium experimental data. Aspen Plus (Aspen Technology, Inc., version 2004.1) software was used for equilibrium and process calculations. High concentration of acrylic acid was obtained in this article using diisopropyl ether as solvent.

Reactive Extraction of Acrylic Acid Using Tri-n-butyl Phosphate in Different Diluents

“…The separation and the purification of the acrylic acid produced from renewable sugars were studied using the liquid−liquid extraction process. Nonrandom two-liquids and universal quasichemical models and the prediction method universal quasichemical functional activity coefficients were used for generating liquid−liquid equilibrium diagrams for systems made up of acrylic acid, water, and solvents (diisopropyl ether, isopropyl acetate, 2-ethyl hexanol, and methyl isobutyl ketone), and the results were compared with available liquid−liquid equilibrium experimental data …”

“…Nonrandom two-liquids and universal quasichemical models and the prediction method universal quasichemical functional activity coefficients were used for generating liquid-liquid equilibrium diagrams for systems made up of acrylic acid, water, and solvents (diisopropyl ether, isopropyl acetate, 2-ethyl hexanol, and methyl isobutyl ketone), and the results were compared with available liquidliquid equilibrium experimental data. 13 Very little work on reactive extraction of acrylic acid can be found in the literature. In view of this reactive extraction, acrylic acid was studied using tri-n-butyl phosphate (TBP) in different diluents (paraffin liquid, toluene, and butyl acetate).…”

Liquid–Liquid Equilibria of the Ternary System Water + Acrylic Acid + 4-Methyl-2-pentanone at 298.15 K

“…[5][6][7][8] The phase behavior of this kind of mixture plays an important role in the research of critical phenomena and wetting transitions. [9][10][11][12][13][14][15][16][17][18] In this work, the ternary system water + acrylic acid + 4-methyl-2-pentanone has been investigated because of its possible application in industrial processes.…”

“…In the case of acrylic acid production, if distillation is used, the energy consumed in the purification stage is very high, since it is present in considerable dilution in the mixture; , moreover, the acrylic acid is thermally unstable. So, the liquid–liquid extraction process appears as a potential alternative, and many solvents have been tried to improve the recovery. – The phase behavior of this kind of mixture plays an important role in the research of critical phenomena and wetting transitions. – In this work, the ternary system water + acrylic acid + 4-methyl-2-pentanone has been investigated because of its possible application in industrial processes.…”