采用黄铁矿软锰矿酸浸工艺直接浸出软锰矿，浸出过程中Ｆｅ、Ｓｉ、Ａｌ等杂质残留在矿石内，形成残留物层。通过控制浸出的动力学条件，可以实现锰的选择性浸出，降低浸出液中的杂质含量。扫描电镜和电子能谱试验表明，锰的浸出过程应以未反应收缩核模型描述 Pyrite  pyrolusite leaching process directly leaching pyrolusite, leaching process of Fe, Si, Al and other impurities remain in the ore, the formation of residue layer. By controlling the kinetic conditions of leaching, selective leaching of manganese can be achieved, reducing the amount of impurities in the leachate. Scanning electron microscopy and electron spectroscopy showed that the leaching process of manganese should be described by an unreacted core model