Method for leaching Gabon manganese oxide ore and recovering iron

The invention discloses a method for leaching Gabon manganese oxide ore and recovering iron. The method comprises the following steps of S1, carrying out first-stage leaching, specifically, adding Gabon manganese ore into a container, adding sulfuric acid and glucose, stirring and leaching; S2, carrying out second-stage leaching, specifically, continuously adding sulfuric acid and iron powder intothe container after the first-stage leaching is completed, stirring, leaching, filtering after leaching is completed so as to obtain a leachate; S3, adding ihleite crystal seeds to precipitate the iron so as to obtain manganese electrolyte and ammonioiarosite slag; and S4, roasting the ammonioiarosite slag to recover the iron. According to the method, manganese can be leached by a wet method, anda large number of iron resources in the Gabon manganese manganese oxide ore can be recovered. 本发明公开了种加蓬氧化锰矿浸出且回收铁的方法，包括以下步骤：S1.段浸出：在容器中加入加蓬锰矿，加入硫酸和葡萄糖，搅拌，浸出；S2.二段浸出：第段浸出完成后向容器中继续加入硫酸和铁粉，搅拌，浸出，浸出完成后过滤，获得浸出液；S3.加入黄铁矾晶种沉铁，获得锰电解液