某低品位云母—长石型铷矿浮选试验研究

摘要

某低品位云母—长石型铷矿原矿品位Rb2O 0.11％.为了回收该铷矿资源,采用浮选回收含铷长石、云母从而回收铷.试验研究结果表明,在酸性条件下,通过云母和部分易浮长石混合浮选—难浮长石浮选的闭路试验流程,可获得混合精矿品位为Rb2O 0.3106％,回收率为54.24％,长石精矿品位为Rb20 0.2311％,回收率为37.08％,总铷精矿品位为Rb2O0.2725％,回收率为91.32％的技术指标.%The Rb2O grade of a low-grade mica-feldspar-type rubidium ore is 0.11％.Flotation experiments were carried out to recover the rubidium in feldspar and mica.The results showed that the mixed concentrate of mica and feldspar with Rb2O grading at 0.3106％ and recovery of 54.24％,and the concentrate of feldspar with Rb2O grading at 0.2311％ and recovery of 37.08％ was achieved through the whole closed trial,which was bulk preferential flotation of the mica and the easy-floating part of feldspar,then flotation of other feldspar in the acidic condition.The grade and recovery of Rb2O in the all concentrate is 0.2725％ and 91.32％ respectively.