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Question
Which method is used in the refining of Titanium metal?
Which method is used in the refining of Titanium metal?
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Solution
The correct option is D Van Arkel
Van Arkel method is used for refining Zirconium or Titanium. In this method oxygen and nitrogen, present as impurity are removed by heating metal in an evacuated vessel with iodine. The metal iodide volatize and it is decomposed on a tungsten filament, heated to about 1800 K. The pure metal is deposited on the filament.Zone refining is used for the purification of materials used as semiconductors in electronic devices. In zone refining a molten zone is caused to travel slowly along a rod of solidThe Mond process, sometimes known as the carbonyl process, is a technique to extract and purify nickelThe Frasch process is a method to extract sulfur from underground deposits. option D is correct.
Van Arkel method is used for refining Zirconium or Titanium. In this method oxygen and nitrogen, present as impurity are removed by heating metal in an evacuated vessel with iodine. The metal iodide volatize and it is decomposed on a tungsten filament, heated to about 1800 K. The pure metal is deposited on the filament.
Zone refining is used for the purification of materials used as semiconductors in electronic devices. In zone refining a molten zone is caused to travel slowly along a rod of solid
The Mond process, sometimes known as the carbonyl process, is a technique to extract and purify nickel
The Frasch process is a method to extract sulfur from underground deposits.
option D is correct.
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