| 某难选鲕状铁矿石选矿试验 |
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| 引用本文： | 邱廷省,张卫星,方夕辉,张宝红,杨云.某难选鲕状铁矿石选矿试验[J].金属矿山,2013,43(3):77-81. |
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| 作者姓名： | 邱廷省 张卫星 方夕辉 张宝红 杨云 |
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| 作者单位： | 1.江西理工大学；2.江西理工大学资源与环境工程学院；3.长沙有色冶金设计研究院有限公司 |
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| 摘 要： | 某鲕状铁矿石以磁赤铁矿为主，铁矿物与脉石矿物嵌布关系极复杂，且含一定量易泥化的赤铁矿和含铁黏土，常规磁选工艺难以显著提高精矿铁品位。采用还原焙烧-阶段磨矿阶段弱磁选-反浮选工艺对该矿石进行了开发利用研究。结果表明，矿石经还原焙烧-两段阶段磨矿阶段弱磁选-1粗1精2扫、中矿顺序返回反浮选流程处理，最终获得了铁品位为61.30%、铁回收率为80.43%的铁精矿。
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| 关 键 词： | 鲕状铁矿石 磁赤铁矿 还原焙烧 反浮选 |
Experiment on Beneficiation of a Refractory Oolitic Iron Ore |
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| Qiu Tingsheng
,
Zhang Weixing
,
Fang Xihui
,
Zhang Baohong
,
Yang Yun.Experiment on Beneficiation of a Refractory Oolitic Iron Ore[J].Metal Mine,2013,43(3):77-81. |
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| Authors: | Qiu Tingsheng Zhang Weixing Fang Xihui Zhang Baohong Yang Yun |
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| Affiliation: | 1.Jiangxi University of Science and Technology；2.Faculty of Resource and Environmental Engineering，JiangxiUniversity of Science and Technology；3. Changsha Engineering & Research Institute Co., Ltd. of Nonferrous Metallurgy; |
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| Abstract: | A oolitic iron ore mainly exists in form of maghemite with complex disseminated relationship of iron minerals and gangue minerals and containing a certain amount of mudding hematite and iron clay. It is difficult to significantly improve iron grade by the conventional magnetic separation process. In the tests, the process of reduction roasting-stage grinding and stage low intensity magnetic separation-reverse flotation is investigated to realize the development and utilization of the ore. The results show that iron concentrate with Fe grade of 61.30% and iron recovery of 80.43% was obtained by the process of reduction roasting- two-stage grinding and stage low intensity magnetic separation- one roughing, one cleaning and two scavenging-inverse flotation-middles back to the flow-sheet in turn. |
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| Keywords: | Oolitic iron ore Maghemite Reduction roasting Reverse flotation |
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