Question

What is zone refining process and wan arcal process ,... ???


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Answer 1

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Van Arkel method (zone Refining ) This method is based on the thermal decomposition of metal components. The process of decompositon of a compound into different substances due to the supply of heat is called zone refining Titanium metal is purified by this method.

Answer 2

zone refining (principle)- when the impurities are more soluble in melt rather than solid.

a method of purifying a crystalline solid, typically a semiconductor or metal, by causing a narrow molten zone to travel slowly along an otherwise solid rod or bar to one end