德昌南山长石矿分选除铁工艺研究

A Study on Iron-removal Process for Separating Dechang Feldspar Ores

针对德昌南山长石矿的基本性质 ,研究了不同加工方法对其分选除铁效果的影响。在此基础上重点选择了干湿联合分选、全湿法分选和破碎产品直接全干法分选三个分选除铁工艺方案 ,通过进一步的试验验证 ,获得了各粒级作业产率均超过 85 % ,总产率为 6 5 %左右 ,w(Fe2 O3) <0 3 %的分选指标 ,达到了预期目标。

In light of rudimental properties of Dechang Feldspar ores, this paper investigates the effect of various processing methods on iron removal efficiency. On this basis, the authors have chosen 3 iron removal schemes, such as dry wet magnetic separation, fully wet magnetic separation and fully dry magnetic separation of crushed products. Through further tests, it has been proved that a feldspar concentrate containing <0.3% Fe 2O 3 can be obtained with an operating yield of over 85% and an overall recovery of about 65%, achieving the desired results.