Methods of separation

Methods for separating mixtures

Index

1.Filtration2. Decantation (solid-lquid; liquid liquid)3. Sieving 4. Chromatography 5. Evaporation 6. Distillation 7. Magnetic attraction 8. Centrifugation

1. Filtration

It is a mechanical process of separating solids from a liquid suspension using a porous medium (filter medium) that permits the liquid to pass while retaining the solids

2. Decantation

It is the process of separating mixtures of immiscible liquids with different densities or the separation of liquid and an insolube solid mixture in which the solid sinks to the bottom of the container, pouring off the liquid.

3. Sieving

It is a separation technique based on the difference in particle size. The sieve is responsible for retaining the larger particles.

4. Chromatography

5. Evaporation

It is a separation method used to separate a mixture (solution) of a soluble solid and a solvent.

6. Simple Distillation

It is a procedure by which two liquids with different boiling points in a solution can be separated. It can be used effectively to separate liquids that have at least twenty degrees difference in their boiling points.

7. Magnetic attraction

It is a procedure that separates ferromagnetic materials such as iron, steel, nickel or cobalt from non-ferromagnetic materials in a mixture

8. Centrifugation

It is the sedimentation of particles having different densities under the influence of the centrifugal force and it is used for separation of superfine suspensions.

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