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都龙铁闪锌矿工艺矿物学研究

都龙铁闪锌矿工艺矿物学研究

Study on the Mineralogy of a Marmatite Ore from Dulong

Study on the Mineralogy of a Marmatite Ore from Dulong

doi:
10.13779/j.cnki.issn1001-0076.2018.01.019
摘要:
为了给都龙铁闪锌矿的回收工艺研究提供依据,采用化学多元素分析、显微镜观察、单矿物化学成分能谱分析、MLA矿物自动定量检测技术等手段对该矿石进行了工艺矿物学研究,得出的主要结论为:虽然矿石中含金属矿物较多,但回收的主要对象为闪锌矿,矿石中的含锌矿物以闪锌矿为主,含量为7.715%,另外还有少量异极矿;闪锌矿化学能谱分析结果表明,闪锌矿中含铁12.04%,为铁闪锌矿;闪锌矿与磁黄铁矿、黄铜矿连生,-0.2 mm原矿中的闪锌矿约一半以连生体形式存在,且矿石中磁铁矿含量约7%,磁黄铁矿含量约10%.根据以上结论,建议先通过弱磁选富集回收磁铁矿和磁黄铁矿,通过抑锌浮铜回收铜矿物,然后采用高效活化剂回收浮选锌.
Abstract:
Process mineralogy is conducted on a marmatite ore from Dulong by chemical multi-el-ement analysis, microscopic observation, energy spectrum analysis of mono - mineral chemical components, MLA automated quantitative surveying technique to provide guidelines for marmatite extraction from the ore. The main results are obtained as follows: although the raw ore contains many metallic minerals,the main target minerals are sphalerite accounting for 7.715% and a small amount of hemimorphite;the results of energy spectrum analysis of sphalerite chemical components show that the sphalerite ore contains 12.04% iron and hence belongs to the marmatite; sphalerite has a close symbiosis relationship with pyrrhotite and chalcopyrite; almost 50% of -0.2 mm sphalerite exists as the intergrowth particles, which contains approximate 7% magnetite and 10% pyrrhotite. According to the above conclusion, it is recommended that the low intensity magnetic separation is first used to enrich magnetite and pyrrhotite; the flowsheet of floating copper and in-hibiting zinc is adopted to recover copper-bearing minerals;and a highly effective activator is used to activate zinc-bearing minerals for flotation.
作者 叶志文 文书明 王伊杰 刘丹 陈瑜
Author: YE Zhiwen WEN Shuming WANG Yijie LIU Dan CHEN Yu
作者单位 昆明理工大学 省部共建复杂有色金属资源清洁利用国家重点实验室,云南 昆明650093;昆明理工大学 国土资源工程学院,云南 昆明650093
期 刊: 矿产保护与利用 ISTIC EI SCI PKU CSSCI
Journal: Conservation and Utilization of Mineral Resources
年,卷(期) 2018, (1)
分类号 TD91
关键词: 铁闪锌矿 知识脉络 选矿 知识脉络 工艺矿物学 知识脉络 都龙 知识脉络
Keywords: marmatite mineral processing process mineralogy Dulong
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基金项目 国家科技支撑项目
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