Optimization of reactive extraction of C1-C4 aliphatic monocarboxylic acids from aqueous solutions: modeling solvation effect with extended-LSER, A-UNIFAC and SPR

2017 ◽  
Vol 12 (6) ◽  
pp. 919-937 ◽  
Author(s):  
Aynur Senol ◽  
Süheyla Çehreli ◽  
Nur Özparlak ◽  
Alfonsina E. Andreatta
Keyword(s):  
Aqueous Solutions ◽  
Reactive Extraction ◽  
Solvation Effect ◽  
Monocarboxylic Acids

Pulse radiolysis of aliphatic acids in aqueous solutions. I. Simple monocarboxylic acids

1969 ◽  
Vol 73 (12) ◽  
pp. 4207-4213 ◽  
Author(s):  
Pedatsur Neta ◽  
Miomir Simic ◽  
Elie Hayon
Keyword(s):  
Aqueous Solutions ◽  
Pulse Radiolysis ◽  
Monocarboxylic Acids ◽  
Aliphatic Acids

Reactive extraction of 3-hydroxypropionic acid from model aqueous solutions and real bioconversion media. Comparison with its isomer 2-hydroxypropionic (lactic) acid

2015 ◽  
Vol 91 (8) ◽  
pp. 2276-2285 ◽  
Author(s):  
Marwen Moussa ◽  
Grégoire Burgé ◽  
Florian Chemarin ◽  
Rana Bounader ◽  
Claire Saulou-Bérion ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Aqueous Solutions ◽  
Reactive Extraction ◽  
Media Comparison ◽  
Hydroxypropionic Acid

Novel Route for Recovery of Glycerol from Aqueous Solutions by Reversible Reactions

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Vijaya lakshmi Ch ◽  
Udaybhaskar Ravuru ◽  
Viswanath Kotra ◽  
Satyavathi Bankupalli ◽  
Prasad R.B.N.
Keyword(s):  
Aqueous Solutions ◽  
Extraction Efficiency ◽  
Equilibrium Constants ◽  
Complete Recovery ◽  
Reactive Extraction ◽  
Maximum Efficiency ◽  
Reported Study ◽  
Acetalization Reaction ◽  
Hydrolysis Of ◽  
Acetone System

Glycerol in aqueous solutions was reacted with acetaldehyde and acetone to form glycerol acetals. The formed acetal was extracted using a solvent and the glycerol is recovered by hydrolysis of the extractant. The reaction equilibrium constants ranged from 1-35 for glycerol-acetaldehyde system and 2.2-5.5 for glycerol-acetone system, respectively. Phase equilibrium measurements showed that the distribution coefficient was from 1.5-8.5 for glycerol-acetaldehyde system and 2-6.5 for glycerol-acetone system. The extraction efficiency of the solvent increased with increase in temperature. Maximum efficiency achieved was 94% at the refluxing temperature of toluene. The reactive extraction route to obtain glycerol is more economical than the distillation route in pure form. The maximum conversion obtained during the acetalization reaction was 87% and the extraction efficiency achieved was 94%. The hydrolysis of the acetal recorded complete recovery of high purity glycerol. The reported study has an application for the recovery of pure glycerol from aqueous solutions generated during biodiesel processing.

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