低品位金铜混合矿综合利用工业试验  

Industrial Test on Comprehensive Utilization of Low Grade Gold-Copper Ores

作　　者：伍赠玲[1] 王春[1] 赖晓康 朱峰[1] 巫銮东[1] 沈贤德[1] 简勇章 

机构地区：[1]紫金矿业集团股份有限公司,低品位难处理黄金资源综合利用国家重点实验室,福建上杭364200

出　　处：《有色金属（冶炼部分）》2016年第2期38-42,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51474075);福建省区域重大项目(2013H4020)

摘　　要：针对紫金山低品位金铜混合矿,采用生物堆浸—介质转换—氰化提金工艺进行千吨级工业试验,考察了生物堆浸过程中铜和铁的浸出行为、酸碱介质转换和氰化提金技术指标,并进行经济效益分析。结果表明,在矿石粒度50mm、堆高5m条件下生物浸出周期80d,氰化浸出30d,渣计铜、金浸出率分别为55.2%、50%;吨矿生产成本72.24元,产值75.11元。Thousand ton grade industrial test of low grade gold-copper ores from Zijinshan by bio-heap leaching, media conversion, and cyaniding process was carried out. Leaching behaviors of copper and iron during bioleaching, and technical index of media conversion and cyaniding were examined, and economical benefit was calculated. The results show that leaching rate of copper and gold is 55.2% and 50% respectively under the conditions including mineral particle size of -50 ram, ore heap height of 5 m, bioleaching duration of 80 days, and cyaniding leaching duration of 30 days. Production cost and gross production value are 72.24RMB and 75. 11RMB respectively for per tonnage ore.

关 键 词：低品位金铜混合矿 生物堆浸 氰化 工业试验 

分 类 号：TF111.3[冶金工程—冶金物理化学] TF811