Distillation is a process that separates mixtures into their component parts based on differences in boiling points. Simple distillation involves a single stage of vaporization and condensation to separate components with large boiling point differences of 25-35°C, such as separating volatile liquids from nonvolatile liquids. It is used to purify seawater but only provides an impure product. The document discusses the basic principles and six types of distillation processes including simple, flash, fractional, reduced pressure, steam, and molecular distillation.

1. Subject: PHARMACEUTICAL
ENGINEERING-Theory
SIMPLE DISTILLATION
PREPARED BY: KASHISH WILSON
ASSISTANT PROFESSOR,
MM COLLLEGE 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. Simple Distillation
 In Simple distillation the only one
chain of vaporization and
condensation takes place
 Its only applicable if difference of
boiling points is very large like 25-
35`C.
 It is mostly use to separate volatile
liquid from nonvolatile liquids.
 Its difficult get pure substance only by
simple distillation.
 Distillation of seawater.

5. Thank You