CHEM 4005 Lecture Notes - Lecture 10: Blast Furnace, Iron Ore, Ultimate Tensile Strength
Document Summary
Why is steel so widely used in our machinery. Iron with small amounts of carbon and other elements(trace elements) Iron is magnetic so it is easy to separate steel products from other waste. How is iron obtained (what ore and how) Hematite (fe o ), through reduction with in a blast furnace. Lined with refractory (heat resistant) bricks of magnesium oxide cooled by water. Taps at bottom for products what is the "charge" Chemical reaction (symbol and type) of iron being extracted from iron ore. Fe o (s) + 3co(g) 2fe(s) + 3co (g) Because it is molten and temperature at bottom of furnace is higher than melting point of iron. Major impurity is sand (sio ), limestone decomposes to lime in furnace and reacts with silica to remove it. Where does calcium silicate go in the blast furnace once created.
