Study on composition analysis and comprehensive utilization of silver in vanadium extraction tailings from stone coal
The product purity of extracting vanadium from stone coal is higher than that of extracting vanadi-um from vanadium titanium magnetite.It is more suitable to be used as vanadium raw material for high puri-ty products such as battery,electron and superconductivity.Therefore,the utilization of stone coal vanadi-um minerals is becoming more and more important.The article has conducted a study on the composition a-nalysis and comprehensive utilization of vanadium extraction tailings from stone coal.The chemical composi-tion analysis of vanadium extraction tailings from stone coal in a certain area of Hubei Province shows that there are high contents of silver and vanadium residues in the tailings and leachate fluid.The analysis of the occurrence state of silver and vanadium in the tailings shows that vanadium mainly remains in mica minerals,and the comprehensive cost of reuse is relatively high at present.Silver mainly exists in sulfides and other sil-icate minerals,and can be recovered through the flotation gravity separation beneficiation mode.Based on this,the comprehensive utilization direction of vanadium extraction tailings from stone coal is determined to be flotation gravity separation for silver recovery.A set of beneficiation experimental process of vanadium tailings with different particle sizes and densities is designed for this purpose.The experimental result is proved that this beneficiation process can effectively achieve the recovery and utilization of valuable element silver in the vanadium tailings.This study proposes a phase analysis method and beneficiation test process for silver in vanadium tailings,which is worthy of promotion and application by relevant enterprises.
NETL
NSTL
万方数据
