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What is the role of collectors in ...

What is the role of collectors in froth floatation process ? Give an example of a collector.

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Substances such as pine oil, xanthates and fatty acids which enhance the non - wettability of the ore particles thereby indirectly favouring froth formation are called collectors.
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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (Very Short Answer Questions)
  1. Out of PbS and PhCO 3 (ores of lead), which one is co...

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  2. Metal sulphides occur mainly in rocks and metal halides occur in lakes...

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

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  4. A sample of galena is contaminated with zinc blende. Name one chemical...

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  5. In the extraction of Al, impure alumina is dissolved in conc....

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  6. What is slag ? Give one example.

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  7. What type of ores are roasted?

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  8. What is meant by the term 'pyrometallurgy' ?

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  9. Indicate the temperature at which carbon can be used as a reducing age...

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  10. What is the role of coke in the extraction of iron from its ...

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  11. Name the reducing agent to obtain iron from Fe2 O 3 at hi...

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  12. Write a non - exothermic reaction takind place in the blast fur...

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  13. Which form of the iron is the purest form of commercial iron ?

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  14. What is the role of silica in the extraction of copper?

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  15. What is the composition of 'Copper matte'?

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  16. How is copper extracted from low grade copper ores?

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  17. Which reducing agent is employed to get copper from the leached low-gr...

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  18. Write the overall reaction taking place in the process used for ...

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  19. How are tin and lead purified ?

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  20. Mention two important substances present in the 'anode mud' obtaine...

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