Question

Write the principle of the following: (a) Zone refining (b) Froth floatation process (c) Chromatography

Answer 1

(a) Based on the principle that the impurities are more soluble in molten state than in solid state.
(b) Based on the fact that mineral particles become wet by oil while gangue particles by water.
(c) Based on the principle that different component of a mixture are differently adsorbed on an adsorbent.