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分析了东阳市钾长石矿中铁的赋存状态和嵌布特性，采用于式磁选方法对该矿进行了除铁工艺研究，获得了含Ｆｅ２Ｏ３小于０．２％，产率大于８０％的精矿．研究成果巳得到了工业应用．
The occurrence and inlaying properties of iron in Dongyang K - feldspar mine were analyzed. The iron removal process was studied by using the magnetic separation method. The results showed that Fe2O3 content less than 0.2% and yield more than 80% Concentrate. Research results have been industrial applications.