Experiment Study on Low Carbon Bearing Pellet With MgO

An investigation on iron-coal pellet with MgO was carried out in order to improve its compression strength.It shows that iron-coal composite pellet's strength increase first and then decrease with an assembling roasting temperature(1 200-1 350 ℃) in the condition 5% coal and 1.5% dolominite,and got its maximum at 1 300 ℃,while the temperature is higher than that value,the compression strength will be decreased due to the inner pore,and lower than it,the strength was detoreated.