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What is the role of depressant in froth...

What is the role of depressant in froth floatation process?

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Explain the 'froth' floatation process'

Assertion : Carbonate and hydroxide ores are concentrated by froth floatation process. Reason : In froth floatation process, mineral oil is used because it preferentially wets the gangue particles.

During the concentration of sulphide ores by froth floatation process, the separation of sphalerite and galena is achieved by which of the following substances used as depressant?

Sulphide ores are concentrated by froth floatation process. Write the name or formulae of any two sulphide ores of copper.

BODY BOOKS PUBLICATION-General Principles and Processes of Isolation of Elements-Example
  1. Outline the principles of refining of metals by the following methods....

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  2. Name the common elements present in the anode mud in electrolytic refi...

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  3. What is the role of depressant in froth floatation process?

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  4. What criterion is followed for the selection of the stationary phase i...

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  5. How is 'cast iron ' different from 'pig iron'?

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  6. Out of C and CO, which is a better reducing agent for ZnO?

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  7. Predict conditions under which Al might be expected to reduce MgO

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  8. What is the role of graphite rod in the electrometallugy of aluminium?

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  9. Give the general method used for the concentration of following ores:B...

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  10. Give the general method used for the concentration of following ores:Z...

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  11. Semiconductor of very high purity can be obtained by zone refining. Ex...

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  12. Explain the steps involved in the vapour phase refining of Ni and Zr

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  13. Leaching is a process of concentration of ores. Explain the leaching o...

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  14. Which of the following is the ore of zinc?

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  15. There are servral methods for refining metals. Explain a method for re...

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  16. Name two metals which can be refined by van-Arkel Method.

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  17. Calcination and raosting are treatments in metallurgy before metal ext...

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  18. The reduction of the metal oxide is easier if the metal formed is in l...

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  19. All ores are minerals, but all minerals are not ores. Why?

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  20. Carbonate ores are usually subjected to calcination, while sulphide or...

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