For sinter with 25% and 50% MAC fines the iron oxides mainly consisted of hematite and magnetite, the bonding phase were mainly dicalcium silicate, glassiness, and a few amount of calcium ferrite.
配为25%和50%的两种烧结矿中铁氧化物均以铁矿、磁铁矿为主,粘结相主要以铁、二和玻璃质为主,但铁数量不多。