AIR PURIFYING COMPOSITION AND MOLDED PRODUCT

摘要

PURPOSE:To obtain a composition having excellent air purifying effect by adding a polybasic oxyacid to a raw material based on FeO and Fe2O3 in a specific ratio to sufficiently react the same with the raw material. CONSTITUTION:A magnetite substance based on FeO and Fe2O3 is used as a raw material. A polybasic oxyacid such as ascorbic acid or citric acid is added to the magnetite substance in an amount of 0.5-10% by wt. of the total iron component of the magnetite substance and both of them are sufficiently reacted. The air purifying molded body thus obtained has excellent purifying effect and can be inexpensively prepared by utilizing blast furnace dust or sintered dust.