陕西某低品位粘土钒矿选矿富集工艺研究

摘要

对陕西某低品位粘土钒矿进行了选矿工艺研究，采用“两段加药擦洗⁃磁选”工艺，配合使用新型抑制剂，可获得产率22．04％、精矿V2 O5品位2．71％、回收率79．31％的钒精矿。该工艺抛除了大部分低品位尾矿，达到了湿法提钒前提高原料钒品位的目的。%Beneficiation technology for a low⁃grade vanadium⁃bearing clay ore from Shaanxi Province was studied. The process consisting of a two⁃stage reagent⁃added scrubbing and a magnetic separation, combined with a new type of depressant, produced a vanadium concentrate grade of 2.71% V2O5, with a yield of 22.04% and recovery of 79.31%. Since the majority of the low⁃grade tailings have been discarded with this technique, the purpose of raising the vanadium grade of the feed material for further hydrometallurgy vanadium extraction has been attained.