Product labeled "BFA Slag", in the form of irregular hard nuggets of various sizes - not exceeding 10 cm, brown in color with visible metallic inclusions, consisting of approximately 76% iron, (14-15) silicon, other non-noble metals with a content below 10% and carbon, sulfur, silicon and phosphorus. It is created as a by-product during the production of aluminum oxide. It is used as an additive during steel melting.
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[1][1]. PLBTIPL-WIT-2018-00016#609867
A product named ‘brown fused alumina slag’ which is a by-product obtained during the production of ordinary electro-corundum in electric furnaces. The product is composed of the following ingredients (% by weight): — iron 75 — silicon 15 — titanium 5 — aluminium 3 — other metals 2 The product is used for concentrating metal ores by selective flotation in the gravimetric separation process.
[1][1]. https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32018R04...