在小型浮选槽和3连圆底烧瓶浸出实验的基础上,在实验型空气搅拌浸出槽中进行了用SO_2浸出东湘桥地区氧化锰矿石2kg的实验。取得了良好的、与小型实验相符的实验结果。Mn、Co、Ni的平均浸出率分别为94.80％、89.70％和81.50％。尾气中SO_2浓度可以降低到0.01％以下,符合排放标准。 Based on the leaching experiments of small flotation cell and 3-round-bottomed flask, the experiment of leaching 2 kg of manganese oxide ore from Dongxiangqiao area by SO 2 was carried out in the experimental air-agitated leaching tank. Good experimental results were obtained in good agreement with small experiments. The average leaching rates of Mn, Co and Ni were 94.80%, 89.70% and 81.50% respectively. Exhaust SO 2 concentration can be reduced to below 0.01%, in line with emission standards.