摘要
根据四川甲基卡地区某低品位锂辉石矿的矿石性质,采用浮选工艺,通过优化粗选及精选工艺技术参数,进行了选矿试验研究。在锂辉石矿石Li_(2)O品位为1.18%,脉石矿物主要是石英和斜长石,其次为白云母和绢云母的原矿条件下,以CaCl_(2)为锂辉石活化剂,4#改性氧化石蜡皂为捕收剂,通过添加Na_(2)CO_(3)调整浮选pH值、分散矿泥及消除熔盐离子的影响,通过添加NaOH形成有利于捕收剂在锂辉石矿物表面选择性吸附的高碱性环境,在磨矿细度为-0.074mm占68.36%条件下采用“一粗一扫两精”的浮选闭路流程,获得了产率为15.76%、Li_(2)O品位为6.03%、回收率为80.54%的锂精矿,实现了锂资源的高效回收。
According to the ore properties of a low-grade spodumene ore in Jiajika area of Sichuan Province,with the application of the flotation process,experimental study on mineral processing was carried out by optimizing the technical parameters of roughing and cleaning process.The Li_(2)O grade of spodumene ore is 1.18%,and the gangue minerals are mainly quartz and plagioclase,followed by muscovite and sericite.Under this condition of the raw ores,CaCl_(2)was used as the activator of spodumene,4#modified oxidized paraffin soap was used as the collector,and Na_(2)CO_(3)was added to adjust the flotation pH value,disperse the slime and eliminate the influence of molten salt ions.By adding NaOH to form a highly alkaline environment conducive to the selective adsorption of collectors on the surface of spodumene minerals,a closed-circuit flotation process of“one roughing,one scavenging and two cleaning”was adopted under the condition of grinding fineness of-0.074 mm accounting for 68.36%.The lithium concentrate with a yield of 15.76%,a Li_(2)O grade of 6.03%and a recovery rate of 80.54%was obtained,which realized the efficient recovery of lithium resources.
作者
阳华玲
冯章标
易峦
刘铭
王长福
周清波
YANG Hualing;FENG Zhangbiao;YI Luan;LIU Ming;WANG Changfu;ZHOU Qingbo(Changsha Institute of Mining Research Co.,Ltd.,Changsha,Hunan 410012,China)
出处
《矿业研究与开发》
CAS
北大核心
2024年第1期207-212,共6页
Mining Research and Development
关键词
低品位锂辉石
矿石性质
浮选
捕收剂
Low-grade spodumene
Ore property
Flotation
Collector
