Separation of zinc from copper and nickel by the selective sorption of Zn(en)32+ on hydrous ferric oxide is reported. The details of the batch procedure and the tests of the separation efficiency are described.
Traces of cadmium from relatively high amounts of nickel and copper can be separated by the selective sorption of the cadmium
ethylenediamine complex on hydrous ferric oxide. A batch chromatographic technique has been elaborated on this basis.