Define ‘Homogenisation’. Write the principle of homogenisation. Write in detail about ‘Colloidal Mill’.

Define ‘Homogenisation’. Write the principle of homogenisation. Write in detail about ‘Colloidal Mill’.
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1 Answer

Answer :

• Homogenization is the process of preparing fine emulsion from a coarse emulsion by converting the large globules in to small globules.

• Principle: These work on the principal of braking large globules in to small globules by passing them under pressure through a narrow orifice. 

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CONSTRUCTION:

• Colloid mill consists of rotor & stator. The milling surfaces are conical in shape & gap between them is about 0.002- 0.03 inch & is adjustable.

• The rotor rotates at about 3000 - 20000 rpm speed.

Working of colloidal mill

• The emulsion or suspension is placed in hopper of mill.

• It is then passed through the narrow gap between rotor & stator & thus reduced to fine particle size

• The material is thrown outward due to centrifugal action

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