The correct statements regarding froth floatation method in metallurgy are I. Used for the purification of…

The correct statements regarding froth floatation method in metallurgy are I. Used for the purification of sulphide ores II. Used for the roasting of sulphide ores III. It is based on the relative densities of gangue and ore particles IV. It is based on the difference in the wetting properties of gangue and ore particles in frothing agent and water
  1. I & IV only
  2. II & III only
  3. II & IV only
  4. I & III only

Solution

The froth floatation process is used for the concentration (purification) of ores, specially sulphide ores. It is based on the principle of relative preference of wetting of gangue and ore particles in water and frothing agent. Thus, I and IV are correct.

Asked in: AP EAMCET 2023 (16 May Shift 1)

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