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Why is the froth flotation method select...

Why is the froth flotation method selected for the concentration of sulfide ores?

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Metal sulfides are preferrentially wetted by oils and not by water whereas impurities are wetted by water.
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Why is the froth flotation method selected for the concentration of Sulphide ores ?

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. An ore sample of galena (PbS) is contaminated with zinc blende (ZnS). ...

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  2. The extraction of Au by leaching with NaCN involves both oxidation and...

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  3. Why is the froth flotation method selected for the concentration of su...

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  4. What is meant by the term pyrometallurgy?

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  5. At a site, low grade copper ores are available and zinc and iron scrap...

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  6. Why is electrolytic reduction preferred over chemical reduction for th...

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  7. Copper matte is charged into a silica lined converter in extraction of...

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

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  9. On what principle is chromatography based ?

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  10. What is the role of cryolite in the extraction of pure aluminium from ...

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  11. What is meant by the term native state?

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  12. When an element is found to occur in the native state?

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  13. What type of elements are found to occur in the combined state?

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  14. What is a mineral?

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  15. What is an ore?

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  16. Comment on the statement that all ores are minerals but all the minera...

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  17. What do you mean by gangue or matrix ?

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  18. What is the difference between a rock and a mineral ?

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  19. What type of ores can be concentrated by magnetic separation method ?

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  20. Define the term metallurgy.

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