Method for preparing high-purity ferric sulfate from iron and manganese

The invention discloses a method for preparing high-purity ferric sulfate from iron and manganese. The method comprises the following steps: reducing and roasting to obtain reduced iron manganese ore powder, adding acid and leaching to obtain leachate and leaching residue, preliminarily removing impurities to obtain purified liquid, extracting and reversely extracting to obtain battery-grade manganese sulfate, recycling manganese ions by carbonizing and precipitating, leaching ferric sulfate by using enhanced acid, and obtaining high-purity ferric sulfate through extraction-reverse extraction concentration crystallization. According to the preparation method, the battery-grade manganese sulfate is prepared by utilizing an extraction technology, so that the preparation method is convenient and rapid, simple in process, low in production equipment requirement, low in investment, reusable in extraction agent and low in cost. 本发明公开了一种利用铁锰制备高纯硫酸铁的方法，包括以下步骤：还原焙烧得到还原铁锰矿粉，加酸浸出得到浸出液和浸出渣，再初步除杂得到净化液，通过萃取-反萃得到电池级硫酸锰，通过碳化