摘要
研究了云南兰坪氧化锌矿石的碱法浸出。浸出剂为氢氧化钠和氨 碳酸铵溶液。在氢氧化钠浓度为 4mol/L、浸出温度为70 ℃、液固质量比为10∶1时,锌浸出率为92.6%;在氨 碳酸铵浓度为 5 mol/L、温度 25℃、液固质量比为15∶1时,锌的浸出率可达91.3%。
Alkaline leaching of Zn from zinc oxide ore from Lanping,Yunnan is investigated. Sodium hydroxide solution and ammonia-ammonium carbonate solution are used as leaching reagents. Recovery of Zn is 92.6% when concentration of NaOH is 4 mol/L, temperature of pulp is 80 ℃, m(liquid) to m(solid) is 10∶1;Recovery of Zn is 91.3% when ammonia-ammonium carbonate concentration is 4 mol/L, pulp temperature is 25 ℃, m(liquid) to m(solid) is 15∶1.
出处
《湿法冶金》
CAS
2005年第1期23-25,共3页
Hydrometallurgy of China
