The GATE Grind

GATE 2024 MT – Question 20

Mineral Processing and Extractive Metallurgy · Non-ferrous extraction · 1 mark · Multiple choice

Which process is NOT related to extraction and refining of titanium from ilmenite ore?

  1. Pidgeon’s process
  2. Sorel process
  3. Van Arkel process
  4. Kroll’s process

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Show answer and explanation

Correct answer: (A) Pidgeon’s process

Explanation

Kroll reduces titanium tetrachloride with magnesium, Van Arkel refines titanium via volatile iodide, and Sorel processing upgrades ilmenite to titanium-rich slag.

Pidgeon is a magnesium-production route using silicothermic reduction of dolomite.

Therefore **A**.