BARC/PUB/2016/0722

 
 

Dithiodiglycolamide impregnated XAD-16 beads for separation and recovery of palladium from acidic waste

 
     
 
Author(s)

Kanagare, A. B.; Singh, K. K.; Bairwa, K. K.; Ruhela, R.; Shinde, V. S.; Kumar, M.; Singh, A. K.
(RPCD;MPD)

Source

Journal of Environmental Chemical Engineering, 2016. Vol. 4 (3): pp. 3357-3363

ABSTRACT

N,N,N,N-Tetra-(2-ethylhexyl)-dithiodiglycolamide were impregnated onto XAD-16 resin and evaluated for the sorption of palladium from acidic medium. The sorption kinetics for Pd on the resin was fast, equilibrium was attained within 60–90 min. The pseudo-first order kinetics model closely matches with the experimental data of sorption kinetics. The sorbed palladium can be eluted using 0.01 M thiourea in 0.1 M HNO3 solutions. Freundlich sorption isotherm model fit well with the isothermal sorption data with maximum sorption capacity of ≈ 29 mg/g. Sorption studies with simulated HLW solution have shown high uptake of palladium and very small co-extraction of lanthanides.

 
 
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