复杂难选锂矿浮选试验研究  

Experimental study on flotation of complex and refractory lithium ore

作　　者：仇联喜 刘万峰 QIU Lianxi;LIU Wanfeng(Sinomine Resource Group Co.Ltd.,Beijing 100070,China;BGRIMM Technology Group,Beijing 102628,China)

机构地区：[1]中矿资源集团股份有限公司,北京100070 [2]矿冶科技集团有限公司,北京102628

出　　处：《矿冶》2024年第3期409-415,共7页Mining And Metallurgy

基　　金：国家重点研发计划项目(2021YFC29032)。

摘　　要：某锂矿矿石成分复杂,锂矿物种类多,主要为锂辉石,其次为透锂长石,含有微量锂绿泥石、锂霞石和锂白云母。每种锂矿物的矿石特性各有不同,所采用的回收方法也有所差异,重点讨论了采用浮选法回收锂辉石的研究成果。试验研究结果表明,经氢氧化钠和碳酸钠调浆后,利用氯化钙活化锂辉石矿物,并采用氧化石蜡皂、磺化皂和柴油作锂辉石的组合捕收剂,在不脱泥的条件下采用“一次粗选—一次扫选—三次精选”的工艺流程可实现锂辉石的回收。闭路试验可获得Li_(2)O品位5.08%、Li_(2)O回收率62.03%的锂辉石精矿,结果为下一步该矿锂辉石资源的回收提供技术参考。The composition of a certain lithium mine ore is complex,with multiple types of lithium minerals,mainly spodumene,followed by lepidolite,as well as trace amounts of lithium chlorite,lithium nepheline,and lithium muscovite.Each lithium mineral has different ore characteristics,leading to variations in the recovery methods.This study focuses on the research results of using flotation to recover spodumene.The experimental research results show that after mixing with sodium hydroxide and sodium carbonate,calcium chloride to activate spodumene minerals,and oxidized paraffin soap,sulfonated soap,and diesel as a combination collector of spodumene.Under conditions without desliming,spodumene recovery can be achieved through a process flow involving“one-stage roughing-one-stage scavenging-three-stage cleaning”.The closed-circuit test can obtain spodumene concentrate with a Li_(2)O grade of 5.08%and a Li_(2)O recovery rate of 62.03%,providing technical insights for further spodumene resource recovery in this mine.

关 键 词：锂矿 锂辉石精矿 浮选 组合捕收剂 不脱泥 闭路试验 

分 类 号：TD9[矿业工程—选矿] TD954