低品位氧化锌矿的氨—铵盐浸出研究

Research on Ammonia-Ammonium chloride Leaching of a Low-Grode Zinc Oxide Ore

对某难选低品位氧化锌矿的氨法浸出进行了研究。结果表明,以NH3-NH4Cl为浸出剂,在适宜的条件下浸出该低品位氧化锌矿,锌的浸出率可达87.51%。该浸出过程所需温度为35℃左右,能耗较低。

An experimental research on ammonia-ammonium chloride（ NH3 -NH4Cl） leaching of a low-grade zinc oxide ore was performed. The experimental results showed that under the suitable technological conditions, using NH3- NH4Cl as a leachant for leaching of the low-grade zinc oxide ore, the leaching rate of zinc can reach 87.51%. The temperature that is necessary for the leaching process is about 35 ℃. The energy consumption of the leaching process is comparatively low.