浅析某地区锂辉石选矿试验研究

Study on Mineral Processing of Lithium in a Region

锂是一种稀缺元素,具有许多优良特性。目前,从自然界锂辉石矿物中提锂是获取锂原料的主要途径。本试验针对某锂辉石矿物工艺特性特点,进行了选矿试验研究。针对该锂辉石矿的矿石性质,采用碱法不脱泥的浮选工艺进行了锂辉石与脉石的分离。探索了磨矿细度、调整剂和活化剂对锂辉石浮选的影响。通过大量试验,结果表明:调整剂碳酸钠+氢氧化钠(质量比2∶3)2000 g/t及捕收剂氧化石蜡皂+肟酸(质量比3∶2)1200 g/t的条件下可获得Li2O品位6.21%,回收率76.30%的较好的锂精矿指标,为有效提供锂资料回收提供技术依据。

Lithium was a scarce element which has many good qualities. At present, the extracting lithium from na- ture spodumene mineral was the main way to obtain raw materials for lithium. In the test, according to the characteristics of spodumene technology minerals, we completed the test research of spodumene in one region. For the ore properties of spodumene, the method of the flotation of alkaline and no-desliming was used to separate spodumene and gangue, exploring the influence of grinding fineness, adjusting agent and activator in the flotation. Through lots of tests,the results showed when the dose of sodium carbonate＋sodium hydroxide（ mass ratio of 2 ： 3）2000 g/t as regulator and the dose of oxidized paraffin soap＋oxime acid（ mass ratio 3 ： 2）1200 g/t as collector,lithium concen- trate index could get Li2O grade of 6. 21%and Li2O recovery of 76. 30%