BIOLOGY
CLASSIFICATION OF VITAMINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Molecular distillation
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Flash distillation
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Steam distillation
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Fractionating distillation
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Detailed explanation-1: -Multiple-effect distillation, often called multistage-flash evaporation, is another elaboration of simple distillation. This operation, used primarily by large commercial desalting plants, does not require heating to convert a liquid into vapour.
Detailed explanation-2: -Similar to a wiped film evaporator, molecular distillation (also known as short path evaporation or SPD) operates generating a plug flow throughput of the feed material through the evaporator and a very short residence time.
Detailed explanation-3: -Molecular distillation is a type of short-path vacuum distillation, characterized by an extremely low vacuum pressure, 0.01 torr or below, which is performed using a molecular still.
Detailed explanation-4: -Fractional Distillation It involves several vaporization-condensation steps (which takes place in a fractioning column). This process is also known as rectification.