Pyrometallurgical Separation of Boron from Iron in Ludwigite Ore

Abstract

Laboratory scale experiments and industrial scale tests have been performed in order to develop a new pyrometallurgical process for the separation of boron from iron in ludwigite ore. The results indicate that boron can be effectively separated from iron in ludwigite ore meantime two products can be got. The boron-containing pig iron can be a good substitute for the expensive boron alloys to produce B-series wear resistant cast while the boron-rich slag can be used to extract borax or boric acid.