Forced circulation evaporators are useful for the concentration of viscous salting...

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Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator?

A. Long vertical evaporator

B. Horizontal tube evaporator

C. Agitated film evaporator

D. Calenderia vertical tube evaporator

Answer: Option C

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