Detergent solution is dried to a powder in a ________________________?
Correct answer: A. Spray dryer
- A. Spray dryer
- B. Spouted bed dryer
- C. Tunnel dryer
- D. Pan open to atmosphere
Explanation
A detergent solution is atomized into a stream of hot air, giving rapid evaporation and powder formation in a spray dryer. The large droplets and slow drying associated with tunnel or pan drying are unsuitable for this product.
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