中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
吉尔吉斯斯坦某矽卡岩型金铜氧化矿石工艺矿物学研究
- 作者：
- 王艳|程晓霞|高歌|马东梅
- 作者单位：
- 长春黄金研究院有限公司|长春黄金研究院有限公司|长春黄金研究院有限公司|长春黄金研究院有限公司
基金项目：
- 中国黄金集团有限公司科研项目（ZJKJ-2018-XY010）
详细信息：
- 作者简介：
- 王艳（1984—），女，甘肃会宁人，高级工程师，从事工艺矿物学研究工作；长春市南湖大路6760号，长春黄金研究院有限公司选冶研究所，130012；E-mail：wangyanmmnv@163.com
- 通讯作者：
- isnull
- 此文档没有上传！
Process mineralogy of a skarn type gold and copper oxide ore from Kyrgyzstan
- English Author：
- Changchun Gold Research Institute Co.,Ltd.|Changchun Gold Research Institute Co.,Ltd.|Changchun Gold Research Institute Co.,Ltd.|Changchun Gold Research Institute Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
针对吉尔吉斯斯坦某矽卡岩型金铜氧化矿石，进行了详细的工艺矿物学研究，并在此基础上开展了硫酸浸铜、酸浸渣氰化浸金试验，以及金、铜流失状态考查。结果表明：该矿石中金、铜为有价元素，金品位为1.76 g/t，铜品位为0.88 %；金矿物种类为自然金、银金矿，嵌布状态主要为粒间金，占74.67 %，嵌布粒度以小于0.037 mm细、微粒金为主，占79.95 %；铜矿物种类较多，以氧化铜矿物为主；矿石氧化率为87.50 %。采用硫酸浸铜、酸浸渣氰化浸金工艺，铜浸出率为85.84 %、金浸出率为95.00 %，酸浸渣中流失的铜主要为氧化铁中铜，氰化浸渣中流失的金主要为脉石矿物中金；矿石中目的矿物浸出指标理想，流失特征符合工艺矿物学研究结果。
关键词:
矽卡岩型；氧化矿石；金；氧化铜；工艺矿物学；嵌布特征；酸浸；氰化
Abstract:
A detailed process mineralogy study is conducted on a skarn type gold and copper oxide ore from Kyrgyzstan.Based on that,the leaching test is conducted on copper leaching by sulfuric acid and gold leaching from acid leaching residue by cyanidation,as well as the copper loss status.The results show that the valuable elements in the ore are gold and copper,the gold grade is 1.76 g/t,copper grade is 0.88 %;gold minerals are native gold and electrum,the dissemination status is mainly intergranular gold,accounting for 74.67 %,and the dissemination grain size is dominated by fine and micro gold smaller than 0.037 mm,accounting for 79.95 %;copper minerals are many,dominated by copper oxide minerals;the oxidation rate of ores is 87.50 %.The process of copper leaching by sulfuric acid and gold leaching from acid leaching residue by cyanidation can obtain copper leaching rate 85.84 % and gold leaching rate 95.00 %.The copper loss in the acid leaching residue is mainly the copper in ferric oxide,the gold loss in the leaching residue is mainly the included gold in gangue minerals;the target minerals in the ores have ideal leaching index,and the loss features are consistent with the process mineralogy study results.
Keywords:
skarn type;oxide ore;gold;copper oxide;process mineralogy;dissemination feature;acid leaching;cyanidation
