AN.0
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I don't understand the difference between fractional and simple distillation.
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Electrofusion8
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I've got some understanding of fractional:
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AN.0
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(Original post by Electrofusion8)
I've got some understanding of fractional:
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Thx a lot
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Electrofusion8
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(Original post by AN.0)
Thx a lot
No problem!
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Adro789
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Fractional distillation is more or less the same as simple distillation except that a piece of equipment called a fractionating column is attached to the flask. Fractional distillation is more efficient when separating liquids which have similar boiling points and gives a purer product.
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(Original post by Adro789)Fractional distillation is more or less the same as simple distillation except that a piece of equipment called a fractionating column is attached to the flask. Fractional distillation is more efficient when separating liquids which have similar boiling points and gives a purer product.
Thanks
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Dhanushkadsilva
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For simple distillation a condenser is used in which many of the vapours inside can be condensed to form a liquid due to the cooling jacket. For example, purification of ethanol from fermenting medium and preparation of distilled water can be considered.

But during the fractional distillation, a fractionating column with valves at different teperarture regions is used. When there are more than 2 components to be separated this method can be used. There is a boiling chamber where the mixture of compounds is heated to obtain vapour. Then the vapours of components will go through so called fractionated column. When the vapours are going upward the temperature of the vapours goes down. When the temperature of the vapour is less than a boiling point of one component, that will be condensed at that temperature region while the vapours of other components are going upward. The components which get condensed at the bottom part of the column are the components with higher boiling points. Examples for the fractional distillation are separtion of gases (N2, O2, Ar) from natural air and separation of hydrocarbons from crude oil.
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