A study on basic characteristics of baked EAF dust including chemical composition

X-ray diffraction detection

and particle-size distribution has been carried out. Based on thermodynamic principles of iron oxide and zinc oxide redaction

the concept of fine reduction of EAF dust is put forward. The effect of temperature (910 ~ 1 010 °C ) and reduction time (2 ~4 h) on ratio of metallization and ratio of de-zinc to EAF dust

and the variance analysis and correlation analysis on test results have been carried out by using Statistical Product and Service Solutions (SPSS) software. Results show that TFe content and Zn content in EAF dust are respectively 47. 26% and 8. 32% ； at 910 ~ 1 010 °C the iron oxide and zinc oxide transforming to MFe and zinc is realized with using pure to fine reduce EAF dust

and the ratio of metallization and ratio of de-zinc are respectively 95% and 98% ； and the phenomenon of sintering EAF dust fine reduction product has not occurred.