Xanthates are used in the froth floatation process as a/an _______________________?

Related Mcqs:

1. Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator ?

   A. Cresylic acid
   B. Copper sulphate
   C. Calcium carbonate
   D. Sodium carbonate

2. Pine oil and Cresylic acid are used as ______________ in the froth floatation process?

   A. Frother
   B. Collector
   C. Depressor
   D. Conditioner

3. Pine oil used in froth floatation technique acts as a/an_____________________?

   A. Collector
   B. Modifier
   C. Frother
   D. Activator

4. Froth floatation is the most suitable for treating ____________________?

   A. Iron ores
   B. Sulphide ores
   C. Quartzite
   D. None of these

5. In froth floatation, chemical agent added to cause air adherence is called___________________?

   A. Collector
   B. Frother
   C. Modifier
   D. Activator

6. Feed size of ≥ 25 cms can be accepted by _______________________?

   A. Ball mill
   B. Rod mill
   C. Fluid energy mill
   D. Jaw crusher

7. Close circuit grinding by a ball mill with air sweeping employs a _______________________?

   A. Classifier
   B. Cyclone separator between mill & classifier
   C. Both A. & B.
   D. Neither A. nor B.

8. Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the___________________?

   A. Coagulation
   B. Flocculation
   C. Sedimentation
   D. Clarification

9. The process by which fine solids is removed from liquids is termed as _____________________?

   A. Decantation
   B. Flocculation
   C. Sedimentation
   D. Classification

10. The process opposite to ‘dispersion’ is termed as the___________________?

    A. Flocculation
    B. Sedimentation
    C. Filtration
    D. None of these