Question

How do you seperate miscible liquids

Answer 1

Miscible liquids can be separated by means of fractional distillation. This uses the fact that two miscible liquids usually have different boiling points. This can be done despite that miscible liquids are dissolved in each other.

Answer 2

You can separate the two combined liquids using a process called fractional distillation. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate. The component parts have boiling points that differ by less than 25 °C or 77 °F from each other under a pressure of one atmosphere. If the difference in  boiling points is greater than 25 °C or 77 °F , a simple distillation is typically used. 

Hope this helped:)

Also, i just learned this process in chem so if you need any additional info i'd be glad to help!