Extraction equilibria of propionic acid from aqueous solutions by Amberlite LA-2 in diluent solvents

2009 ◽  
Vol 155 (3) ◽  
pp. 784-788 ◽  
Author(s):  
Yavuz Selim Aşçı ◽  
İsmail İnci
Keyword(s):  
Aqueous Solutions ◽  
Propionic Acid ◽  
Extraction Equilibria

Chaleur de dilution de solutions aqueuses d'acide polyacrylique, de son sel de sodium et de l'acide propionique

1971 ◽  
Vol 49 (24) ◽  
pp. 3935-3939 ◽  
Author(s):  
Jean-Pierre Cartier ◽  
Hubert Daoust
Keyword(s):  
Aqueous Solutions ◽  
Propionic Acid ◽  
Polyacrylic Acid ◽  
Sodium Polyacrylate ◽  
Heat Of Dilution ◽  
Concentrated Solutions ◽  
Sodium Salts ◽  
Structure Of Water ◽  
Calvet Microcalorimeter ◽  
Heats Of Dilution

With a Tian–Calvet microcalorimeter, heats of dilution at 25 °C have been measured for aqueous and acid (0.2 N HCl) solutions of polyacrylic acid and of propionic acid, and for aqueous solutions of the sodium salts of polyacrylic acid. The results are interpreted in terms of the change in structure of water resulting from the lengthening of the solute molecule. The heat of dilution of moderately concentrated solutions of sodium polyacrylate can be explained by the theory of Eigen and Wicke.

Effect of Diluent Polarity on Extraction Equilibria of Acrylic Acid from its Aqueous Solutions by Tri-n-Octylaime

2013 ◽  
Vol 807-809 ◽  
pp. 2801-2804 ◽  
Author(s):  
Yeon Ki Hong ◽  
Hyoung Wook Lee ◽  
Sung Min Bae
Keyword(s):  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Extraction Efficiency ◽  
Raw Materials ◽  
Dilute Aqueous Solutions ◽  
Amine Complex ◽  
Increasing Demand ◽  
Low Solubility ◽  
Extraction Equilibria ◽  
Active Diluents

Acrylic acid and its derivatives are raw materials for polymeric, paint additives, adhesive, textile and leather treating products. The increasing demand of acrylic acid is great attention for its recovery from dilute aqueous solutions. With this aim, the amine based extraction of acrylic acid from its aqueous solutions in polar diluents was investigated. In the extraction, the tri-n-octylamine in polar diluents was found to provide higher extraction efficiency than that in nonpolar diluents. It was presumed that the acid-amine complex formation is difficult and the low solubility of acid-amine complex is low in nonpolar diluents. Higher extraction efficiency for acrylic acid was obtained with the polarity of active diluents due to higher solubility for acid-amine complex with polarity of diluents.

Ultrasonic Relaxations in Aqueous Solutions of Propionic Acid in the Presence and Absence ofβ-Cyclodextrin

2002 ◽  
Vol 106 (12) ◽  
pp. 3029-3033 ◽  
Author(s):  
Sadakatsu Nishikawa ◽  
Takanori Fukahori ◽  
Kazuhiko Ishikawa
Keyword(s):  
Aqueous Solutions ◽  
Propionic Acid ◽  
Presence And Absence

Extraction Equilibria of Propionic Acid in Systems with Phosphonium Phosphinate Ionic Liquid, Dodecane, and Water

2021 ◽  
Vol 66 (2) ◽  
pp. 947-957
Author(s):  
Ján Marták ◽  
Kanti Kumar Athankar ◽  
Tibor Liptaj ◽  
Milan Polakovič ◽  
Štefan Schlosser
Keyword(s):  
Ionic Liquid ◽  
Propionic Acid ◽  
Extraction Equilibria
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