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Explain froth flotation on process....

Explain froth flotation on process.

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This process is based on the difference in the wetting characteristics of the ore and gangue particles with oil and water.

Powdered ore is suspended into a tank containing water. Pine oil or xanthates (collector) and aniline or cressols (stabilizer) are added. A rotating paddle agitates the mixture and draws air in it. As a result froth is formed which carries the ore particles. THus method is suitable for sulphide ores.
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SUBHASH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Questions
  1. Explain hydraulic washing used for ore concentration.

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  2. Explain the magnetic properties of transition metals.

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  3. Explain froth flotation on process.

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  4. What type of ore is concentrated by froth floatation ?

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  5. Name the depresent used to separate two sulphide ores containing ZnS a...

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  6. Name the process used for the concentration of sulphide ores.

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  8. What is roasting ? Explain.

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  9. What is calcination? Explain.

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  10. What is the role of lime stone in the extraction of iron from the conc...

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  11. Among carbon and carbon monoxide which one is a better reducing agent ...

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  12. Among carbon and carbon monoxide which one is a better reducing agent ...

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  13. What is the role of lime stone in the extraction of iron from the conc...

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  14. Explain the process of obtaining 'blister copper' from copper matte'' ...

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  15. Write the composition of copper matte.

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  16. Name the flux used to remove iron impurity from molten copper matte.

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  17. State the role of silica in the metallurgy of Copper.

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  18. During the extraction of aluminium by Hall-Heroult process at which el...

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  19. Draw labelled diagram of Hall-Heroult electrolytic cell for the extrac...

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