摘要
某金矿采用细菌氧化预处理浮选金精矿,金精矿金品位25～35 g/t之间,细菌氧化后的金精矿渣进行炭浸提金工艺;在炭浸阶段氰化钠集中添加在1#槽,炭浸回收率只有94.38%;经过对炭浸工艺的研究,提出在不改变氰化钠用量的情况下,改变氰化钠添加方式,将氰化钠由1#槽集中添加改为1#、2#槽分次添加,炭浸回收率提高到95.12%。
The gold mine was treated by bacterial oxidation pretreatment technology to floatation gold concentrate which contained Au 25 to 35 g/t. And gold concentrate was studied by carbon - in - leach process to recover gold. Production data showed that when sodium cyanide was only added to the first tank in the carbon - in - leach process, the gold recovery was 94.38%. Under the condition of adding the same quantity of sodium cyanide, but adding to the first and second tanks in batches, the gold recovery was 95.12% in the carbon - in - leach process.
出处
《矿产保护与利用》
2012年第1期30-32,共3页
Conservation and Utilization of Mineral Resources
关键词
分次添加
氰化钠
细菌氧化
炭浸回收率
separate batch dosage
sodium cyanide
bacterial oxidation pretreatment
carbon -in - leach recovery
