Preparation of Iron Oxide Pigment by Super Iron Concentrate

In recent years, there are some problems in domestic iron powder price fluctuation and low economic benefits. By using super iron concentrate as raw materials to prepare high quality iron oxide pigment, the added value of iron essence powder can be increased.The effect of various conditions in the preparation process on the pigment purity was investigated, and the results showed that iron oxide black with iron content of 98.20% was obtained using super iron concentrate(TFe:71.81%) from a concentrator in Fushun, which was 3.20% higher than that of HG/ T 2250—1991 medium grade. The iron oxide red with iron content of 97.60% was obtained, which was 2.40% higher than that of class A iron in GB/T 1863—2008. The iron oxide yellow with an iron content of 83.20% was obtained, which was 0.20% higher than the iron content of class A in GB/ T 1863—2008. The other indexes of the three pigments also exceeded their respective optimal standards， which provides basic research for finding another way to improve the economic benefits of enterprises.