2006•Hydrometallurgy of ChinaRequires access

Leaching of Zinc Oxide Ore With Ammonium Chloride Solution

Tang Mo-tang

Abstract

The Effects of some reaction conditions on leaching of zinc from zinc oxide ore with ammonium chloride solution are investigated.The results shows that leaching of zinc is about 90% under the optimum conditions which stirring rate is 300 r/min,average particle size of ore is 75μm, temperature is above 90℃,ammonium chloride concentration is 5 mol/L and reaction time is 4 h.The iron concentration in leaching solution is 0.61 mg/L.

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Key concepts: Leaching (pedology), Zinc, Ammonium chloride, Chemistry, Ammonium, Chloride, Inorganic chemistry, Particle size