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

2010 ◽  
Vol 55 (2) ◽  
pp. 847-851 ◽  
Author(s):  
Yavuz Selim Aşçı ◽  
İsmail İnci̇
1895 ◽  
Vol 37 (2) ◽  
pp. 361-379
Author(s):  
A. Crum Brown ◽  
James Walker

In our former paper we described the results obtained by electrolysing concentrated aqueous solutions of the ethyl-potassium salts of normal saturated dibasic acids. The chief products were shown to be diethyl compound ethers of the same homologous series, and the formation of these compound ethers was shown to occur in accordance with the equation: 2C2H5·O·ĊO·R˝·CO·O- = C2H5·O·CO·R˝R˝CO·O·C2H5 + 2CO2. We now find that precisely similar results are obtained by electrolysing the corresponding compounds derived from saturated dibasic acids with side chains. We have thus been able to effect the synthesis of acids of the succinic acid series, in which hydrogen is symmetrically replaced by alcohol radicals of the form CnH2n+1.


2006 ◽  
Vol 82 (3-4) ◽  
pp. 579-590 ◽  
Author(s):  
I. Riipinen ◽  
B. Svenningsson ◽  
M. Bilde ◽  
A. Gaman ◽  
K.E.J. Lehtinen ◽  
...  

1992 ◽  
Vol 47 (3) ◽  
pp. 493-498 ◽  
Author(s):  
Alexander Apelblat ◽  
Josef Barthel

Abstract Conductance measurements of aqueous solutions of succinic acid and of di-sodium succinate were performed from 278.15 to 308.15 K and the limiting conductances λ0 (1/2 Succ2- ) are reported. The Waiden product is independent of temperature: λ0(1/2 Succ2-)*η(T) = 0.503 ± 0.001. The salt conductances closely obey the Onsager limiting law. The evaluation of the equilibrium constants for the primary and secondary steps of dissociation, K1 and K2, and the limiting conductances of the hydrosuccinate ion, λ0(HSucc-), are discussed using the Quint and Viallard conductance equation


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.


2000 ◽  
Vol 24 (4) ◽  
pp. 229-233 ◽  
Author(s):  
Nathalie Karpel Vel Leitner ◽  
Florence Delanoë ◽  
Benito Acedo ◽  
Bernard Legube

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