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| 铜铅多金属硫化矿中伴生金的强化回收实验研究 |
| Experimental Research on Enhanced Recovery of Associated Gold from a Copper-Lead Multi-metal Sulfide Ore |
| Received:August 04, 2016 |
| DOI： |
| 中文关键词: 有色金属冶金 铜铅多金属硫化矿 伴生金 弱碱性介质 游离金 强化回收 |
| 英文关键词: non-ferrous metallurgy copper-lead multi-metal sulfide ore associated gold weakly alkaline medium free gold strengthen recovery |
| 基金项目:云南省科技创新强省计划项目(2015IB002):低品位稀贵金属资源综合利用关键技术研究与产业化。 |
| Author Name | Affiliation | E-mail | | RAN Jincheng | State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China | jinchengran@163.com | | LIU Quanjun | State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China | kmliuqj@sina.com | | QIU Xianyang | Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510650, China | | | HU Zhen | Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510650, China | | | SONG Baoxu | Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510650, China | | | LI Peilun | Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510650, China | |
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| 中文摘要: |
| 采用铜铅混选富集-抑铜浮铅浮选分离的工艺，对某铜铅多金属硫化矿中的伴生金进行强化回收研究。在铜铅混选阶段，弱碱性条件(pH=9)下，用Z-200(30 g/t)做捕收剂，金在铜铅混合精矿中有效富集；在铜铅分离阶段，以硫化钠(4000 g/t)预先脱药，用乙硫氮(30 g/t)浮选铅矿物，金在铜精矿中进一步富集。工艺闭路实验获得含铜18.69%、含金42.70 g/t的含金铜精矿，铜和金的回收率分别达到92.58%和56.84%；还同时获得含铅61.45%的铅精矿。可实现铜铅多金属硫化矿中伴生金的强化回收。 |
| 英文摘要: |
| Enhanced recovery of associated gold resource from a copper-lead multi-metal sulfide ore was achieved by a combined process of Cu & Pb bulk flotation plus copper depressing and lead floatation. Gold was efficiently captured by the collector Z-200 (30 g/t) in the weakly alkaline (pH=9) medium during the Cu & Pb bulk flotation. Gold was further enriched in the copper concentrate by the pre-removing reagent sodium sulfide (4000 g/t) and the lead collector diethyldithiocarbamate (30 g/t) in the following Cu & Pb separation step. In closed-circuit tests, a gold-bearing copper concentrate containing 18.69% Cu and 42.70 g/t Au was obtained. The recovery was 92.58% for Cu and 56.84% for Au, Moreover, a lead concentrate with a Pb content of 61.45% was also produced, indicating that the recovery of gold was enhanced. |
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