复杂多组分锂矿综合回收试验研究  

Experimental Study on Comprehensive Recovery of a Complex Multi-component Lithium Ore

作　　者：张辉 孟庆波 王洪岭 苗泽坤 ZHANG Hui;MENG Qingbo;WANG Hongling;MIAO Zekun(Institute of Resources Utilization and Rare Earth Development,Gangdong Academy of Sciences,Guangzhou 510651,China;National Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangzhou 510651,China;Guangdong Province Key Laboratory of Mineral Resources Development and Comprehensive Utilization,Guangzhou 510651,China)

机构地区：[1]广东省科学院资源利用与稀土开发研究所,广州510651 [2]稀有金属分离与综合利用国家重点实验室,广州510651 [3]广东省矿产资源开发和综合利用重点实验室,广州510651

出　　处：《有色金属（选矿部分）》2024年第9期65-71,共7页Nonferrous Metals（Mineral Processing Section）

基　　金：贵州省科技重大专项计划项目(0922269001)。

摘　　要：某锂矿石中含有磷锂铝石和锂辉石两种有价矿物,采用常规锂辉石浮选工艺,磷锂铝石富集在锂辉石精矿产品中,后期的锂辉石冶炼工艺无法回收磷锂铝石,造成锂资源的极大浪费,同时还会导致锂辉石精矿中的磷含量超标。针对这种情况,根据矿石性质,采用分步浮选工艺回收磷锂铝石和锂辉石,采用新型高效的磷锂铝石捕收剂MA和锂辉石捕收剂MY,得到了Li_(2)O含量为6.04%、回收率为12.09%的磷锂铝石精矿和Li_(2)O含量为5.65%、回收率为72.16%的锂辉石精矿。“磷锂铝石和锂辉石分步浮选”工艺不仅实现了矿石中不同含锂矿物的分类回收,提高了锂资源综合利用率,而且有效降低了锂辉石精矿中的有害元素磷含量,给后续锂冶炼提供便利条件。A lithium ore contains two valuable minerals,i.e.amblygonite and spodumene.Using conventional spodumene flotation process,amblygonite is enriched in spodumene concentrate products,and later spodumene smelting process can not recover amblygonite,resulting in a great waste of lithium resources,and also lead to excessive phosphorus content in spodumene concentrate.In view of this situation,according to the ore properties,a stepwise flotation process is used to recover the amblygonite and spodumene.By using MA and MY,a new type of high efficient collector for lepidocrocite and spodumene respectively,a lepidocrocite concentrate with Li_(2)O content of 6.04%and recovery of 12.09%and a spodumene concentrate with Li_(2)O content of 5.65%and recovery of 72.16%were obtained.The process of stepwise flotation of spodumene and amblygonite not only realizes the classified recovery of different lithium-containing minerals in the ore,improves the comprehensive utilization rate of lithium resources,but also effectively reduces the content of harmful element phosphorus in spodumene concentrate,and provides convenient conditions for subsequent lithium smelting.

关 键 词：优先浮选 新型捕收剂 磷锂铝石 锂辉石 综合回收 

分 类 号：TD954[矿业工程—选矿] TD923