DISTILLATION THEORY Distillation is a widely used method
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DISTILLATION
THEORY: Distillation is a widely used method for seperating mixtures and purificating liquids. How do you do distillation? Firstly, the liquid form is evaporated with heat and then the formed steam form is converted to the liquid form again. In this way, the liquids are purificated.
What are the types of distillation? There are four types of distillation: • Simple distillation • Fractional distillation • Steam distillation • Vacuum distillation
How does the simple distillation do? What are the aims? The aims are that, • To separate liquids from solids or nonvolatile components • To determine the boling point
In simple distillation, a mixture containing solid (or nonvolatile components) is heated to change the most volatile component from a liquid into steam. The steam rises and passes into a condenser (or inclined cooler). The condenser is usually cooled with cold water to promote condensation of the steam.
Simple Distillation
How does the fractional distillation? In fractional distillation, a mixture is heated so vapor rises and enters the fractionating column. As the vapor cools, it condenses on the packing material of the column. So, a part of mixture passes in to inclined cooler and condenses on the collected. The other part of mixture returns to the baloon. So, the mixture is purificated.
Fractional Distillation
How does the vacuum distillation? Lowering the pressure of the systems, namely, applying the pressure the systems also lowers boiling points. So, the mixture may be distillated at the lower temperatures. For this purpose, we used the evaporator.
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