Question:
A slurry is to be dried to produce flaky solid. Which drier is recommended?
A slurry is to be dried to produce flaky solid. Which drier is recommended?
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Spray dryer dries liquid or slurry feed rapidly by atomizing it into fine droplets and contacting it with hot air.
Updated On: May 27, 2026
- Tray dryer
- Drum dryer
- Spray dryer
- Rotary dryer
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The Correct Option is C
Solution and Explanation
A slurry contains solid particles suspended in liquid.
Drying of slurry requires removal of liquid to obtain a dry solid product.
According to the given answer key, the recommended dryer is:
\[
\text{Spray dryer}
\]
In a spray dryer, the slurry or liquid feed is atomized into fine droplets.
These droplets are contacted with hot air.
Due to the large surface area of droplets, drying takes place very quickly.
Spray dryers are widely used when fast drying is required.
They can handle solutions, suspensions, emulsions, and slurries.
Therefore, for the given slurry drying requirement, the correct option is:
\[
\text{Spray dryer}
\]
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