PROCESS FOR THE PREPARATION OF LOW DENSITY COMPACTS FOR USE IN THE PRODUCTION OF SILICON AND FERROSILICON AND PLANT FOR SUCH A PROCESS

摘要

There is disclosed a low density, porous compact of prepared mix containing silica fume, finely-divided carbonaceous reducing agent such as petroleum coke or coal, optionally iron and a binder. There are also disclosed a method and an apparatus for making such a compact. The compact is useful as the feed to an electric furnace in the production of silicon and ferrosilicon.