收稿日期: 2015-06-09
修回日期: 2015-07-31
网络出版日期: 2016-02-25
基金资助
公益性行业科研专项“德兴铜矿铼等元素分布规律研究”(编号:201311072-02)和国家自然科学基金项目“成矿系统中成矿流体演化与成矿——以内蒙赤峰边家三种类型多金属矿床为例”(编号:41272110)联合资助
A Study on Process Mineralogy of Polymetallic Low-grade Tailings of Liwu Copper Ore,Sichuan Province
Received date: 2015-06-09
Revised date: 2015-07-31
Online published: 2016-02-25
董发勤 , 陈道前 , 胡如权 , 傅开彬 , 邓全淋 , 董发勤 , 徐龙华 , 胡如权 , 张亚龙 , 邓全淋 , 杨永强 , 徐龙华 , 张亚龙 , 杨永强 . 四川里伍铜矿多金属低品位尾矿工艺矿物学研究[J]. 黄金科学技术, 2015 , 23(6) : 70 -74 . DOI: 10.11872/j.issn.1005-2518.2015.06.070
The process mineralogy of polymetallic low-grade tailings of Liwu copper ore was investigated by chemical methods and microscopic observation.The results show that the major metallic minerals consist of pyrrhotite,chalcopyrite and marmatite.The major gangue minerals are quartz,chlorite,and plagioclase.The content of the coarse tailings of +0.097 mm is 63.2%,the copper content of the tailings of -0.200~0.074 mm is 57.12% of total copper,Znic content of the tailings of -0.200~+0.074 mm is 66.70% of total Znic.The distribution rates of the fine-disseminated gold and silver had a positive correlation with the distribution rate of copper.It was difficult for pyrrhotite,chalcopyrite and marmatite to liberate fully due to their complex intergrowth relationship.Compared to flotation,it is cost-effective that biohydrometallurgy is used to recover copper and znic from Liwu copper ore tailings.
Key words: tailings; process mineralogy; chalcopyrite; marmatite; gold
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