本文报导了用硫酸亚铁溶液浸出印度奥里萨低品位锰矿回收锰的研究。对各种不同参数,包括搅拌速率、硫酸亚铁量、固液比、温度、浸出时间和颗粒大小作了详细研究,确立了实验室规模下的最佳条件。对用硫酸亚铁浸锰时,添加硫酸的影响也作了研究。对用合成酸洗液处理矿石,以及矿石预还原的影响也作了研究,并对所得结果的数据进行了比较。 This paper reports the recovery of manganese from low-grade manganese ore in Orissa, India, by ferrous sulfate solution. Various parameters, including stirring rate, ferrous sulfate, solid-liquid ratio, temperature, leaching time and particle size were studied in detail, and the optimum conditions were established under laboratory scale. The effect of adding sulfuric acid to manganese leached with ferrous sulphate was also studied. The effect of treating the ores with synthetic pickling and the prereduction of ores has also been studied and the data of the results obtained have been compared.