云南某地中基性岩浆型钪矿的工艺矿物学研究与可选性评价罗兴

原矿经化学分析、光薄片鉴定、人工重砂分析和扫描电镜电子探针分析等研究发现:岩石类型为角闪长岩、透闪石、透辉石化黑云母角闪石岩等的钪矿石。矿石中的钪主要以类质同象的形式分布,在矿石中的每个矿物中都有分布,但在各矿物中分布的浓度差别较大,其中在铁硅酸盐矿物透辉石、角闪石、钛铁矿、锆石和单斜锆石中的含量较高,最高分布在钛铁矿中,达313 g/t。矿石中的钪主要分布于透辉石中,透辉石中含钪173.9 g/t,分配在透辉石中的钪占75.3%,矿石中的钪可通过电磁选富集。分布于石英和斜长石等非磁性矿物中的钪占16.5%,为不可选的钪。

PROCESS MINERALOGY STUDY AND WASHABILITY EVALUATION OF INTERMEDIATE-BASIC MAGMATIC ROCK TYPE SCANDIUM ORE IN YUNNAN PROVINCE

Through chemical analysis,polished section identification,artificial heavy concentration analysis and scanning electron microscope electrical probe analysis,the raw ore has been defined as following: The ore is scandium ore with rock type of hornblende diorite,tremolite,diopsidized bootite hornblende rock.The scandium in the ore mainly distributes in the form of isomorphism,and distributed in different minerals,however,the proportion in different minerals differs a lot,among which,the content in clonopyroxene,amphibole,ilmenite,zicon and monoclinic zircon,with the highest in ilmenite,up to 313 g/t.The Scandium in ore mainly distributed in diopside,with content of 173.9 g/t,and 75.3% of scandium in the ore distributed in diopside,which can be enriched by electromagnetic separation.There are 16.5% of scandium in ore distributed in non-magnetic minerals such as quartz and plagioclase,which are not washable.