Separation Techniques

Question	Answer
Process in which solids settle to the bottom of the container	Sedimentation
Separating solid particles according to their particle size by passing them through a perforated barrier	Seiving
Process of separating the liquid component of a solution by boiling the solution and condensing the resulting vapour back to a liquid	Distillation
Process of carefully pouring off the liquid and leaving the solid undisturbed at the bottom of the container	decantation
Process of separating undissolved solid from a liquid or gas by passing the mixture through a filter	Filtration
Process of passing a mixture through a magnetic field to separate the magnetic and non magnetic components	Magnetic Separation
Process of separating a dissolved solid from a solution by vaporising the liquid	Evaporation
Process of forming crystals from a solution	Crystallisation
E.g. Separating sand and gravel	Sieving; difference in particle size
E.g. Separating crude oil into various fragments	Fractional Distillation; difference in boiling point
E.g. Obtaining salt from sea water	Evaporation and Crystallisation; difference in boiling points
E.g. Removing solids from petrol	Filtration; difference in particle size
E.g. Separating gold from sand	Sedimentation; difference in density

Resource summary

	Created by Kass about 12 years ago