Morphology of Zinc Deposited via Cementation over Magnesium Rotary Disc in ZnCl2+NH4Cl Aqueous Solutions

Orest Kuntyi and Galyna Zozulya

Zinc cementation by magnesium from ZnCl2+NH4Cl aqueous solutions has been investigated. The amount of magnesium has been established as 0.8–2.0 g per 1 g of conditioned zinc to obtain recovery degree  99 %. At low concentrations of Zn2+ ions (0.025–0.1 M ZnCl2) dispersed deposit is formed with nanoparticles of reduced metal; at high concentrations (0.25–0.5 M) coarse-crystalline and fern-shaped deposit is formed.

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