GATE 2020 MT – Question 43

Mineral Processing and Extractive Metallurgy · Ironmaking · 2 marks · Multiple choice

Match reactors P COREX, Q MIDREX, R flash smelting, S submerged-arc furnace to products 1 sponge iron, 2 copper matte, 3 hot metal/pig iron, 4 ferrochrome.

P–1, Q–3, R–2, S–4
P–3, Q–4, R–2, S–1
P–3, Q–1, R–2, S–4
P–3, Q–1, R–4, S–2

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Correct answer: (C) P–3, Q–1, R–2, S–4

Explanation

COREX is a smelting-reduction process producing liquid hot metal, P–3. MIDREX produces direct-reduced or sponge iron, Q–1. Sulfide flash smelting produces copper matte, R–2. Submerged-arc furnaces are used for ferrochrome, S–4. Thus C.

GATE 2020 MT – Question 43

Explanation

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