Extraction Equilibria of Acrylic Acid from Aqueous Solutions by Amberlite LA-2 in Various Diluents

2010 ◽  
Vol 55 (7) ◽  
pp. 2385-2389 ◽  
Author(s):  
Yavuz Selim Aşçı ◽  
İsmail İnci̇
2013 ◽  
Vol 807-809 ◽  
pp. 2801-2804 ◽  
Author(s):  
Yeon Ki Hong ◽  
Hyoung Wook Lee ◽  
Sung Min Bae

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.


RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8150-8162
Author(s):  
Shihab Ezzuldin M. Saber ◽  
Siti Nurul Ain Md Jamil ◽  
Luqman Chuah Abdullah ◽  
Thomas Shean Yaw Choong ◽  
Teo Ming Ting

This study performs an appraisal of the adsorptive capacity of amidoxime-modified poly(acrylonitrile-co-acrylic acid) for the p-nitrophenol (PNP) adsorption, from aqueous solutions.


1982 ◽  
Vol 55 (11) ◽  
pp. 3413-3416 ◽  
Author(s):  
Ryuichi Yamada ◽  
Kiyoshi Tamura ◽  
Shoji Harada ◽  
Tatsuya Yasunaga

2018 ◽  
Vol 45 (2) ◽  
pp. 35-38 ◽  
Author(s):  
D.M. Kamorin ◽  
K.V. Shirshin ◽  
D.V. Orekhov ◽  
A.P. Sivokhin ◽  
A. Yu. Sadikov ◽  
...  

Composition diagrams have been obtained for the homogeneous radical copolymerisation of acrylic acid and methoxypolyethylene glycol methacrylate (with a degree of oxyethylation of 23) in aqueous solutions. For all initial comonomer ratios, methacrylic ester unit enrichment of copolymers formed at low conversions (less than 10%) was established. Using Mayo–Lewis, Finemann–Ross, and Kelen–Tüdös methods, we determined the relative activities of acrylic acid (0.02–0.07) and methoxypolyethylene glycol methacrylate (1.14–1.20).


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