CAJ | 학술논문

以电子探针（EPMA）为主要研究手段，结合常规化学分析、化学物相分析、透反射显微镜研究，对黔西北某地低品位铁矿中铁一钛的赋存状态进行了详细研究。研究结果表明，矿石中铁主要以褐铁矿形式存在，少量以赤铁矿产出。载铁矿物与粘土矿物常常混杂出现，分布不均，团块大小差异也大，矿物间的嵌布关系复杂；钛在矿石中一是以微细粒的独立矿物金红石、锐钛矿、钛铁矿与脉石矿物相互混杂分布，另一种则是蚀变残留于褐铁矿中类质同象的钛。根据铁、钛赋存特征研究结果，对该矿石提出了“分散一絮凝一磁选”分离预富集铁一钛矿物、“直接还原法”实现铁钛分离的工艺建议。
이전자탐침（EPMA）위주요연구수단，결합상규화학분석、화학물상분석、투반사현미경연구，대검서북모지저품위철광중철일태적부존상태진행료상세연구。연구결과표명，광석중철주요이갈철광형식존재，소량이적철광산출。재철광물여점토광물상상혼잡출현，분포불균，단괴대소차이야대，광물간적감포관계복잡；태재광석중일시이미세립적독립광물금홍석、예태광、태철광여맥석광물상호혼잡분포，령일충칙시식변잔류우갈철광중류질동상적태。근거철、태부존특정연구결과，대해광석제출료“분산일서응일자선”분리예부집철일태광물、“직접환원법”실현철태분리적공예건의。
The occurence condition of a low - grade iron deposit in northwestern Guizhou are detail studied which the EPMA is the main research technique combine with conventional chemical analyses, chemical phase analyses and intramodal distortion microscope study. The iron in ore existed mainly in the form of limonite and few is hematite. Gold bearing mineral and clay mineral usually appears mixed, uneven distributes, the lump sizes are different and the dissemination between minerals is complex. Titanium in ore, one is mixed distrib- utes with vein mineral as independent mineral futile, anatase and ilmenite, another is residual titanium in Iimonite after alteration. By the study based on the Fe and Ti occurence character, the suggestions of iron and titanium mineral pre -enrichment by dispersion -flocculation -magnetic separation and iron and titanium dis- persion by direct- reduction process.