15 Questions
What is the main drawback of electrolocation units?
The need for frequent replacement of electrodes
Which type of flotation process is gaining popularity for the treatment of slaughterhouses, poultry processing, sea food processing, and food processing waste?
Dissolved air flotation
What is the difference between vacuum and pressure flotation?
Vacuum flotation can only be run as a batch process, while pressure flotation can be operated continuously
Which type of flotation machines are most commonly used in the mineral industry?
Mechanical flotation machines
What is the main difference between mechanical cells and flotation columns?
Mechanical cells require mechanical agitation, while flotation columns do not
What are the two types of collector molecules mentioned in the text?
Ionic and non-ionic
What is the function of a selective collector in a flotation system?
To float highly hydrophobic minerals
How are ionizing collectors classified?
By the type of ion that produces the water-repellent effect
What is the main difference between cationic and anionic collectors?
Cationic collectors attach to negatively-charged mineral surfaces, while anionic collectors attach to positively-charged surfaces
What is the primary use of cationic collectors?
Flotation of silicates and certain rare-metal oxides and for the separation of potassium chloride (sylvite) from sodium chloride (halite)
What is the main advantage of xanthates as collectors for sulfide minerals?
They are highly selective for sulfide minerals and do not have any affinity for the common non-sulfide gangue minerals
What is the structure of sodium oleate?
C18H33NaO2
What is the main disadvantage of anionic collectors for oxide minerals?
They are not as selective as the collectors used for sulfide mineral flotation, as they attach to the surface by electrostatic attraction rather than by chemically bonding to the surface
What is the effect of the pH of the medium on cationic collectors?
They are most active in slightly acidic solutions and inactive in strongly alkaline and acidic media
What is the main characteristic of primary amines as collectors for apatite?
They are strong collectors of apatite and can selectively float sedimentary phosphates from calcareous ores
"Test Your Knowledge on Flotation Equipment: Discover Different Techniques and Limitations!" Take this quiz to learn about the various types of flotation machines and the methods used for generating air bubbles in them. Explore the advantages and limitations of each technique to select the right equipment for your specific application. Challenge yourself and enhance your understanding of flotation equipment!
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