Canadian Journal of Chemical Engineering, Vol.80, No.2, 322-325, 2002
Effect of mixed solvent on selective removal of lead (II) ions by dicyclohexano-18-crown-6 from aqueous solutions containing heavy metals
The effect of the organic solvent on the transport of lead ions through a bulk liquid membrane containing dicyclohexano-18-crown-6 (DC18C6) as carrier was studied. Chloroform, 1,2-dichloroethane, chlorobenzene, nitrobenzene and their binary solutions were employed as solvents. SCN-, NO3-, Cl- and CH3COO were used as anions. The selectivity and the efficiency of lead transport from aqueous solutions containing other cations such as Ni2+, Cu2+, Co2+ and Zn2+ were also investigated.