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Write the principle behind the froth floatation process. What is the role of collectors in this process?
Write the principle behind the froth floatation process. What is the role of collectors in this process?
The froth floatation process is based on the principle that metallic sulphide ore particles are preferentially wetted by oil while gangue particles are preferentially wetted by water.
Collectors attach themselves to mineral grains via polar groups, which become water repellent and thus pass into the froth. Ethyl xanthate and potassium ethyl xanthate are two examples.