Iron Pretreatment Research

During the Symposium which was held at the National Metallurgical Laboratory two years ago, my colleague Mr. J.L. Harrison of British Oxygen Gases Limited described the conditioning of iron using oxygen prior to the open hearth furnace in his paper "Oxygen in Pyrometallurgical Techniques". The merits of this process of iron preteat-ment which he described then have been widely discussed before and since, and I do not think it is necesary to dwell on the advantages which can be derived or on the practice which has been estabilished at various works throughout the world.