| Title |
Solvent Extraction Equilibria of FeCl3 with Alamine336 Salt |
| Authors |
이만승(Lee Man Seung); 이경주(Lee Gyeong Ju) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
FeCl3; Alamine336; HC1; Equilibrium constant; Bromley |
| Abstract |
Solvent extraction experiments of FeCl_(3) with Alamine336 salt were performed. It was found from the oading capacity of Alamine336 salt that the solvent extraction reaction depended on the ratio of initial concentration of Alamine336 to FeCl_(3). When the concentration of Alamine336 was in excess compared to that of FeCl_(3), alamine336 participated in the extraction reaction as a dimer. When the initial concentration ratio of Alamine336 to FeCl_(3) was below three, ferric chloride was extracted by monomeric Alamine336. The equilibrium constants of solvent extraction, K_(ex)-2.22×10^(4) and K_(ex)=6.41×10^(5) for monomeric and dimeric Alamine336 respectively, were determined from extraction data by considering activity coefficient of solutes in the aqueous phase. The predicted distribution coefficients of iron agreed well with those experimentally measured. |