Steam distillation is a process that uses steam to separate high boiling substances from non-volatile impurities. It works by introducing steam into a mixture, which causes volatile components to evaporate more readily than they otherwise would. This allows for the separation of volatile oils and other compounds from immiscible liquids and water. Steam distillation is useful for extracting volatile oils from plants like clove and eucalyptus because it can separate these oils at lower temperatures than simple distillation, avoiding potential degradation of heat-sensitive compounds.

1. Subject: PHARMACEUTICAL
ENGINEERING-Theory
STEAM DISTILLATION
PREPARED BY: KASHISH WILSON
ASSISTANT PROFESSOR,
MM SCHOOL OF PHARMACY,
MM(DU),
MULLANA , AMBALA

2. Contents:
 Introduction & basic principles and methodology of
1. Simple distillation
2. Flash distillation
3. Factional distillation
4. Distillation under reduced pressure
5. Steam distillation
6. Molecular distillation

3. Introduction
 Distillation is a process in which a liquid or vapour mixture of two
or more substances is separated into its component fractions of
desired purity, by the application and removal of heat.
 Principle:
Separation of components from a liquid mixture via distillation
depends on the differences in boiling points of the individual
components. And also depends on the vapour pressure characteristics
of liquid mixtures.

4. Steam distillation
 It is a process which is carried with
the steam help for separating high
boiling substances from non-volatile
impurities.
 It is helpful in separating immiscible
liquids and volatile oil extraction
such as clove and eucalyptus.
 Volatile oil separated at low
temperature in steam distillation
 It is not suitable for immiscible liquid
and water.

5. Thank You