Recovery of Iron From Arsenic-production Cinder

Fe_3O_4 was recovered from cinder of arsenic-production by reduction roasting and subsequent magnetic separation after being desulfurized by oxidation roasting.Test results showed that Fe_3O_(4)concentration with 65.2% of Fe grade can be obtained and total recovery of Fe is 63.7% at optimum roasting conditions of 550 ℃,30 min and 97 μm of particle size.