Modeling and optimization of reactive extraction equilibria and kinetic study of gallic acid using tributyl phosphate in isoamyl alcohol

Author(s):  
Nishant Joshi ◽  
Amit Keshav ◽  
A.K. Poonia
2017 ◽  
Vol 204 (4) ◽  
pp. 522-528 ◽  
Author(s):  
Kalpana Rewatkar ◽  
Diwakar Z. Shende ◽  
Kailas L. Wasewar

2019 ◽  
Vol 36 (2) ◽  
pp. 669-680 ◽  
Author(s):  
Otidene R. S. da Rocha ◽  
Joyce E. Oliveira ◽  
Luciano C. Almeida ◽  
Tulio D. da Silva ◽  
Josivan P. da Silva ◽  
...  

2011 ◽  
Vol 8 (s1) ◽  
pp. S509-S515 ◽  
Author(s):  
I. Inci ◽  
Y. S. Asçi ◽  
A. F. Tuyun

The extraction of L(+) tartaric acid from aqueous solutions by amberlite LA-2 is a secondary amine mixture in different diluent solvents. Extraction equilibria of L(+) tartaric acid by amberlite LA-2 in 1-octanol, cyclohexane, isooctane, hexane, methyl isobutyl ketone (MIBK) solvents at temperature 298.15 K have been measured. The batch extraction experiments distribution coefficients (D), loading factors (Z) and extraction efficiency (E) were calculated. The maximum removal of L(+) tartaric acid is 91 % with MIBK and 0.92 mol.L-1initial concentration of Amberlite LA-2.


1964 ◽  
Vol 42 (4) ◽  
pp. 878-884 ◽  
Author(s):  
M. Halpern ◽  
T. Kim ◽  
A. S. Kertes ◽  
N. C. Li

The extraction equilibria in the system aqueous hydrochloric acid – uranyl chloride –undiluted tri-n-butoxyethyl phosphate, TBEP, were examined as a function of increasing uranyl concentration (0.44 to 4.41 M) in the initial aqueous solution, the acid content of the initial aqueous solution being kept constant at 6.76 M. The extraction behavior of TBEP is found to be different from that of tributyl phosphate. Evidence has been presented to show that the three ethereal oxygen atoms in the TBEP molecule are, under high organic phase loading conditions, available for participation in complexation. The hydrochloric acid promoted hydrolysis of TBEP and the instability toward light of the TBEP layer containing hydrochloric acid and uranium were also examined.


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