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含铜金氧化矿石回收金银铜试验研究
- 作者：
- 孔令强|张涛|郭建东
- 作者单位：
- 山东国大黄金股份有限公司|山东省地质矿产勘查开发局第六地质大队|山东国大黄金股份有限公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 孔令强（1979—），男，高级工程师，从事金银冶炼、硫酸生产、金银选矿工艺技术研究应用与生产过程管理工作；E-mail：klqsdgd@163.com
- 通讯作者：
- isnull
- PDF下载
Experimental study on recovery of gold,silver,and copper from copper-bearing gold oxide ores
- English Author：
- Shandong Guoda Gold Co.,Ltd.|No.6 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources|Shandong Guoda Gold Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
某含铜金氧化矿石采用氰化工艺回收金、银，氰化钠消耗较高，金、银浸出率低，其中的铜等有价金属难以有效回收，氰化尾矿处置困难。通过试验提出一种从含铜金氧化矿石中综合回收金、银、铜的工艺方法。在磨矿细度-0.074 mm占90 %时，用10 %硫酸加热酸浸浸铜，含金酸浸渣采用铵盐＋环保提金剂BK516浸出金、银，金、银、铜回收率分别达到88.85 %、82.59 %、83.77 %，金、银、铜等有价金属得到了有效回收，为该类矿石的综合处理提供了新的工艺方法。
关键词:
铜金氧化矿；酸浸；铵盐；环保提金剂；综合回收
Abstract:
The cyanide process to recover gold and silver from a copper-bearing gold oxide ore is characterized by high consumption of sodium cyanide and a low leaching rate of gold and silver.Copper,among other valuable mine-rals,is difficult to efficiently recover,and cyanide tailings are difficult to dispose of.A process for recovering gold,silver,and copper from the copper-bearing gold oxide ore is proposed through experiments.When the grinding fineness of -0.074 mm accounts for 90 %,10 % sulfuric acid is used for heated acid leaching of copper,and gold and silver are leached from the gold-bearing acid residue by ammonium salts＋environmentally friendly gold leaching reagent BK516,the gold,silver,and copper recovery rates are 88.85 %,82.59 %,and 83.77 % respectively.Valuable metals such as gold,silver,and copper are effectively recovered.Meanwhile,the study provides novel processes for the comprehensive treatment of similar ores.
Keywords:
copper-gold oxide ore;acid leaching;ammonium salt;environmentally friendly gold leaching reagent;comprehensive recovery
