TS EAMCET 5 May 2018 Shift 1 Solved Paper

The iron ore is fed into the top of the furnace along with coke and limestone. The lime stone decomposes in the hot furnace in the presence of carbon monoxide which acts the reducing agent and forms calcium oxide. This calcium oxide reacts with SiO ‌2 to form a slag.
CaO+SiO2→CaSiO3