Unit 1 Introduction

6 lecture hours

• Classification of mass transfer operation
• choice of separation method
• Methods of conducting mass transfer operations
• Design principles

Unit 2 Molecular and eddy Diffusion in Fluids

12 lecture hours

• Estimation of diffusivities and mass transfer coefficient
• Their co- relations
• Analogies in transfer process
• Simultaneous heat and mass transfer
• Phase relationship for absorption
• Drying & crystallization
• Applications of diffusion

Unit 3 Inter Phase Mass Transfer

5 lecture hours

• Concept of equilibrium
• diffusion between phases
• Two resistance theory
• Local overall mass transfer coefficient
• controlling mass transfer resistances

Unit 4 Diffusion in Solids

• Fick’s law in Diffusion
• Types of Solid Diffusion 02 04

Unit 5 Gas Absorption

10 lecture hours

• Equilibrium Solubility of gases in liquids
• Ideal and non-ideal solution
• Counter current multi stage operation (isothermal)
• Absorption factor
• Continuous contact equipments
• Overall coefficient and Transfer units
• Concept of HETP and HTU, NTU and jH factor
• Industrial absorbers

Unit 6 Liquid-Liquid Extraction

20 lecture hours

• 11 Ternary liquid-liquid equilibrium and tie line data
• choice of solvent
• Single stage & multistage extraction
• Co - current and cross current extraction
• Continuous counter current multistage extraction with and without reflux
• theory & performance of continuous contact equipments
• Single stage & multistage equipments
• Applications of liquid extraction

Unit 7 Leaching

5 lecture hours

• Steady state and unsteady state leaching equipments
• Single stage leaching
• Multistage cross current and counter current leaching
• Rate of leaching recovery of solvent vapours
• Application of leaching

Unit 8 Mass Transfer with Chemical Reactions

3 lecture hours

• Mass transfer with chemical reaction in case of adsorption
• Introduction to back mixing in various contacting devices