某钒钛磁铁矿尾矿中铁、钛矿物的矿物学研究

发布时间：2018-03-21 12:10

本文选题：钒钛磁铁矿尾矿　切入点：嵌布关系　出处：《有色金属(选矿部分)》2017年03期 　论文类型：期刊论文

【摘要】：为了实现钒钛磁铁矿尾矿中钛、铁等资源的二次综合利用,提高资源利用率,采用矿相显微镜、扫描电子显微镜和矿物自动解离系统(MLA)对某钒钛磁铁矿尾矿中铁和钛的赋存规律进行了详细研究,讨论了影响尾矿中钛、铁回收的矿物学因素。结果表明,该尾矿的颗粒较细,矿物主要包括钛铁矿、钛磁铁矿、黄铁矿等金属矿物和攀钛透辉石、斜长石和角闪石等脉石矿物组成;矿物中钛磁铁矿和钛铁矿除部分以单体解离态产出外,多呈形态各异的粒状沿脉石的粒间、边缘、裂隙及孔洞填充而构成较为复杂的镶嵌和包裹关系;铁、钛元素在目的矿物中的赋存比例分别为19.87%和51.62%;铁在钛铁矿、攀钛透辉石、角闪石中的赋存比例占78.85%,单体解离度为72.29%,TiO_2在钛铁矿、攀钛透辉石和角闪石的赋存比例占90.94%,单体解离度为71.43%,因此实现钛磁铁矿、钛磁铁矿和攀钛透辉石、角闪石的有效分离是提高铁、钛回收率的关键。
[Abstract]:In order to realize the secondary comprehensive utilization of titanium, iron and other resources in the tailings of vanadium titanomagnetite, and to improve the utilization ratio of the resources, the mineral phase microscope was used. The occurrence of iron and titanium in the tailings of a vanadium titanomagnetite was studied by scanning electron microscope and automatic mineral dissociation system (MLAA). The mineralogical factors affecting the recovery of titanium and iron in the tailings were discussed. The results showed that the particles of the tailings were fine. The minerals mainly include ilmenite, titanomagnetite, pyrite and other metallic minerals, and gangue minerals such as pyrroxene, plagioclase and amphibole. The intergranular, edge, fissure and pore filling of the gangue in various shapes form a more complex mosaic and encapsulation relationship; the occurrence ratio of iron and titanium in the target mineral is 19.87% and 51.62 respectively; iron in ilmenite, diopside, diopside, titanium diopside, titanium diopside, titanium diopside, titanium diopside, titanium diopside, titanium diopside, titanium diopside, titanium diopside. The ratio of amphibole to amphibole is 78.85, the monomer dissociation degree is 72.29 and TiO2 is 72.29 and TiO2 is located in ilmenite, the ratio of titanium diopside and hornblende is 90.94, and the monomer dissociation degree is 71.43. Therefore, the titanomagnetite, titanomagnetite and titanium diopside are realized. The effective separation of amphibole is the key to improve the recovery of iron and titanium.
【作者单位】：攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室;
【分类号】：TD926.4

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