某低品位铌-钽多金属矿中锂的可利用性

来源期刊：有色金属2010年第4期

论文作者：李艳峰 邓雁希 王玲

文章页码：85 - 91

关键词：工艺矿物学； 锂； 工艺特性； 赋存状态

Key words：processing mineralogy； lithium； processing performance； lithium dissemination

摘    要：某低品位铌、钽多金属矿中伴生组分锂含量(Li₂O)为0.39%,已达工业回收品位。工艺特性研究表明,矿石中锂的赋存状态复杂,其中仅有43.54%的锂以锂辉石形式存在,其次以透锂长石及锂云母等形式存在,透锂长石与其他长石相似的可浮性,使得大部分透锂长石基本进入尾矿,而回收锂云母的同时白云母及黑云母也进入锂精矿,大大降低锂精矿的品位,表明矿石中的锂较为难选。

Abstract: The content of lithium (Li₂O)in a Ta-Nb polymetallic ore is 0.39%,so the lithium can be considered to be utilized comprehensively.While the processing mineralogy on the ore shows that it is complex about Li dissemination.There are only 43.54% Li in the spodumene,other Li in lepidolite and mica.It is difficult to separate petalite and other fledspar by floating now,so this part of petalite would enter into tailing.Further a large of mica that does not containing Li will enter the Li concentrate and debase its grade.So it is difficult to utilize Li in the ore.