A mineral processing test was conducted to treat a low-grade rubidium-bearing lepidolite ore from Hunan Province with the grade of Li2O and Rb2O respectively at 0.27％and 0.17％.A flowsheet including a desulphurization and a lithium flotation was adopted,and an efficient collector CK was used in combination with dodecylamine to collect lithium minerals under weak alkaline conditions.In a closed-circuit test,a lithium concentrate was produced with Li2O grade and recovery of 2.71％and 86.34％,Rb2O grade and recovery of 1.02％and 51.24％,respectively.It is concluded that efficient utilization of low-grade lepidolite ore can be actualized.
维普
万方数据