H. Leinonen et al., PURIFICATION OF NICKEL AND ZINC FROM WASTE-WATERS OF METAL-PLATING PLANTS BY ION-EXCHANGE, Reactive polymers, 23(2-3), 1994, pp. 221-228
A wide variety of chelating organic ion exchange resins and inorganic
ion exchangers were tested for the removal of nickel and zinc from was
te effluents from metal plating plants. Best performances were found t
o be exhibited by three chelating resins, sodium titanate and an activ
e carbon impregnated with oxine. For most of these exchangers, the bat
ch separation percentages were 99.9% or higher at pH above 5. Column e
xperiments showed that the most effective exchanger for nickel was an
inorganic ion exchanger, sodium titanate, and for zinc an aminophospho
nate resin, Duolite ES 467.