Method of processing manganese-containing and phosphorus-containing hematite

The invention discloses a method of processing manganese-containing and phosphorus-containing hematite, relating to a method of comprehensively recovering iron and manganese in the manganese-containing and phosphorus-containing hematite. The method is characterized by comprising the steps in sequence: breaking crude manganese-containing and phosphorus-containing hematite, and then mixing evenly together with pulverized coal to prepare aggregate; conducting reduction roasting to the aggregate; conducting high-temperature water quenching and ball milling; conducting magnetic separating to obtain concentrate ferrous powder and tailings; conducting sulfuric acid leaching and filtration to the tailings, and purifying to remove impurities from the filtrate; and concentrating and crystallizing the purified filtrate to prepare manganese sulfate. The method is wide in applicability, the crude ore is not required for fine milling, coke and coking coal are not needed in the metallization roasting process, and the separation effect of Fe, Mn and P is good after roasting, ball-milling and magnetic separation; the manganese enrichment effect of the magnetically-separated tailings is good, and the concentrate manganese sulfate product is obtained by conducting sulfuric acid leaching through the conventional leaching agent, and conducting impurity removal and concentration and crystallization; and the equipment used in technological process is mature, the automation level is high, the control is easy, the environment pollution is small, and the product value is high.