Studies on the Preparation of Zinc Oxide from Galvanizing ...
Galvanizing plant waste (zinc dross) containing % zinc was leached in HCl solutions. Zinc in solution was precipitated as Zn(OH) 2 by adding ammonium hydroxide. The product was characterized by atomic absorption spectroscopy, thermogravimetric analysis, xray diffraction analysis, and scanning electron microscopy. Xray diffraction analysis confirmed that when heated at 500oC ...