Sangan’s iron-ore mines which is located in southem khorsan could be a main source to procide iron-ore for production plants (complexes) in the country.
The reservoir amount estimated 300 × 106 tones. Due to good physical and chemical proportion, this mine regarded as the best in Iran.
The direct reduction process of iron-ore with naturanl gas recommended as a method of reduction due to the abundance of natural gas in khorasan region. To reach these objectives, it is necessary to investigate the direct reduction ability of iron-ore and determine the factors affecting the process.
In this study pellet was chosen as raw material due to good reductibiliy with hydrogen as reducing gas. In the preparation of raw material (milling, heating etc, pellet) the physical, chemical and reducing properties rate is affected by these parameters.
The study was performed in two different lebel: laboratory and pilot scale in Ahwas steel company and from the result, the theoretical mechanism of reduction and the related equations were calculated.