PROCESS FOR THE PRODUCTION OF SILICON OR FERRO-SILICON IN A LOW ELECTRIC FURNACE AND AGGLOMERATES OF RAW MATERIAL SUITABLE FOR THIS PROCESS

摘要

IN THIS PROCESS FOR THE PRODUCTION OF SILICON OR FERRO-SILICON IN A LOW ELECTRIC FURNACE THE AGGLOMERATES OF RAW MATERIAL ARE FORMED WITH A BITUMINOUS BINDER ADDED OF FINE SILICA POWDER WITH A SPECIFIC INTERNAL SURFACE OF AT LEAST 5 MG SUCH AS, WHEN REDUCING SILICON TO SILICON CARBIDE, RAW MATERIALS ARE TRANSFORMED INTO COKE-BASED AGGLOMERATES WITH A TOTAL SPECIFIC CARBON INTERNAL SURFACE OF MORE THAN 5 MG, AND PREFERABLY MORE THAN 10MG, AND THE REDUCTION IS CONTINUED, IN THE LOWER PART OF THE LOWER ELECTRIC FURNACE, WITH THE AGGLOMERATES WITH COKE STRUCTURE HAVING AN INTERNAL SURFACE OF MORE THAN 5 MG.