METHOD FOR TREATING STEEL DUST CONTAINING CHLORINE AND FLUORINE

摘要

PROBLEM TO BE SOLVED: To provide a method for treating dust steel containing chlorine and fluorine where chlorine and fluorine are efficiently separated from steel dust by improving a Waelz process where steel dust is treated for obtaining reduced iron pellets. SOLUTION: In the method where steel dust containing chlorine and fluorine is reduced and roasted by a rotary kiln to recover reduced iron pellets, moisture is added to the steel dust in the process of the reduction and roasting.