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复合氨浸法处理低品位难处理氧化锌矿工艺研究

Qianxia Zhang,Enyu Zhang,Xingfeng Wang,Xiaofang Guo,Taojia Peng

Multipurpose Utilization of Mineral Resources（2018）

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Abstract
采用复合氨浸法[NH3-(NH4)2CO3-NH4Cl]处理低品位难处理氧化锌矿.条件试验研究得出较佳浸出条件为:总氨浓度4 mol/L,温度为40℃,液固比4:1,浸出时间240 min,粒度-0.074 mm.在较佳浸出条件下,锌的浸出率高达到91.64％,浸出液中Cd、Pb、Cu、Si等杂质离子的含量较低.净化结果表明:用锌粉净化浸出液,杂质离子的最高净化效率可达到99.27％.
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