摘要
通过筛分分析、XRF、SEM-EDS扫描电镜和矿物定量解离系统(MLA)等测试手段对云南某磷矿选矿厂旋流器溢流产品进行了工艺矿物学研究,详尽地研究了P、Al、Mg、Fe元素的赋存状态及矿物间的嵌布特征、矿物单体解离度等工艺矿物学性质。研究结果表明:溢流矿属于贫磷矿(P2O5为20.20%),且有害元素Mg含量较高为3.99%;其中P元素赋存于磷灰石,Mg元素完全赋存于白云石。溢流矿的粒度较细(-74μm 84.74%),大部分矿物解离度较高,其中目的矿物氟磷灰石解离度为81.58%,但仍有13.26%与白云石连生、4.86%与石英连生。最后阐述了影响提质降杂的因素及提出了三种解决思路。
The process mineralogy study of the overflow products from hydrocyclone in Yunnan Phosphorite mine was performed using by screening analysis, Scanning Electron Microscopy(SEM-EDS) XRF, and MLA.The occurrence state of P, Al, Mg and Fe elements, the characteristics of mineral dissemination, and the mineral liberation degree were studied in detail. The research results show that the overflow product belongs to poor phosphate ore(P2 O5=20.20%) and the content of harmful element Mg is 3.99% P elements are stored in apatite and Mg elements are completely stored in dolomite. The size of overflow product is fine(-74μm 84.74%) and the dissociation degree of most minerals is high. the dissociation degree of phosphate is 81.58%, but phosphate with dolomite is 13.26% and phosphate with quartz is4.86% with. Finally, the factors that affect the quality improvement and impurity reduction and the three solutions are proposed.
作者
方福跃
王静明
FANG Fu-yue;WANG Jing-ming(Yunnan Phosphate Haikou Co.,Ltd.,Kunming 650113,China)
出处
《价值工程》
2019年第8期162-166,共5页
Value Engineering
关键词
工艺矿物学研究
低品位磷矿
MLA
提质降杂
溢流矿
process mineralogy
low-grade phosphate ore
MLA
quality improvement and impurity reduction
overflow product
