黄金浮选尾矿中长石综合利用研究

Study on Comprehensive Utilization of Feldspar in Gold Flotation Tailings

本文以黄金浮选尾矿为研究对象,采用BPMA自动工艺矿物学分析系统对尾矿的矿物组成进行分析,并对脱泥处理后尾矿进行了磁选、浮选综合回收长石的试验研究。结果表明,采用磁选工艺回收,可获得K_(2)O+Na_(2)O含量接近10%、产率达到70%的合格长石产品;“有氟有酸”浮选工艺可以获得品质更高的长石,但污染较为严重,而“无氟有酸”浮选工艺富集长石的效果不明显。

Taking gold flotation tailing as the research object,this paper uses the BPMA automatic process mineralogy analysis system to analyze the mineral composition of the tailings,and carries out an experimental study on the comprehensive recovery of feldspar by magnetic separation and flotation on the tailings after desliming.The results show that the qualified feldspar products with a K_(2)O+Na_(2)O content close to 10%and a yield of 70%can be obtained when the magnetic separation process is used for recovery;"using fluorine and acid together" flotation process can obtain higher quality feldspar,but the pollution is more serious,and"using acid without fluorine"flotation process has no obvious effect on feldspar enrichment.