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高海拔土状氧化铜矿湿法处理工艺研究及生产实践
引用本文:张仪.高海拔土状氧化铜矿湿法处理工艺研究及生产实践[J].矿冶工程,2011,31(4).
作者姓名:张仪
作者单位:云南迪庆矿业有限责任公司,云南香格里拉,674400
摘    要:针对土状氧化铜细泥含量高,氧化铜与铁矿物及其它脉石结合率高,难以直接堆浸的特点,开展了氧化铜矿水洗分级-粗粒柱浸-细粒搅浸湿法处理工艺试验,考察了酸度、浸出时间等条件参数对铜浸出率的影响,确定了柱浸、搅浸最佳工艺条件。结果表明,小型柱浸试验时,控制浸出液pH值为1.5~1.7,浸出时间为65 d,铜浸出率达到65.05%,为扩大柱浸试验提供了技术依据。柱浸扩大连续试验取得铜浸出率69.62%、吨铜酸耗14.82 t的较好技术指标;搅浸的最佳工艺为:搅拌速度60 r/min,酸矿比12%,浸出时间120 min,温度60℃,浸出液pH值为1.5~1.7,在最佳工艺条件下,铜浸出率达65.29%,吨铜酸耗10.87 t。目前该湿法处理工艺已成功应用于工业生产实践,堆浸生产电积铜1 500 t,浸出率64%;搅浸生产电积铜350 t,浸出率65%。

关 键 词:土状氧化铜矿    堆浸  柱浸  搅浸  电积铜  

Research on Hydrometallurigical Process for High Altitude Earthy Copper Oxide Ores and Production Practices
ZHANG Yi.Research on Hydrometallurigical Process for High Altitude Earthy Copper Oxide Ores and Production Practices[J].Mining and Metallurgical Engineering,2011,31(4).
Authors:ZHANG Yi
Affiliation:ZHANG Yi(Yunnan Diqing Mining,Shangri-La 674400,Yunnan,China)
Abstract:Experiments on hydrometallurigical process including washing classification-coarse column leaching-fine agitation leaching of copper oxide ores were carried out,since the content of slime in earthy copper oxide ores was high and the binding rate of copper oxide ores with iron minerals and gangues was high,resulting in difficuly in direct heap leaching.The effects of acidity leaching time on the leaching rate of copper were investigated,and the optimum technological conditions of column leaching and agitatio...
Keywords:earthy copper oxide  copper  heap leaching  column leaching  agitation leaching  electrodeposited copper  
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