An important fraction of paraffin wax and asphalt is called fuel oil.
Fractional distillation can be defined as type of separation technique that is typically used for the separation of a liquid mixture or chemical mixture into fractions with different boiling points by means of distillation, so that one or more fractions of the liquid mixture will vaporize in a fractionating column.
Generally, the fractional distillation of a hydrocarbon such as crude oil produces many chemical compounds at different boiling points. Thus, an important fraction of paraffin wax and asphalt is called fuel oil.
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