据测试分析，叙永硫铁矿尾矿，高岭石粘土中的高岭石占50%～70%，黄铁矿25%～40%，其次为多水高岭石、地开石等。根据对原岩取样分析，含黄铁矿高岭土原岩的Al、Si含量完全可以利用，但Ti含量偏高。采用浮选工艺，即可达到提高黄铁矿回收率，其尾砂高岭石粘土又可直接用作耐火 According to test analysis, Xuyong pyrite tailings, kaolinite clay kaolinite accounted for 50% to 70%, pyrite 25% to 40%, followed by more water kaolinite, dickite and so on. According to the original rock sample analysis, the content of Al and Si in the original rock containing pyrite kaolin can be fully utilized, but the Ti content is high. Using flotation process, you can achieve increased pyrite recovery rate, the tailings kaolinite clay can be used directly as a refractory