CHEMICAL ENGINEERING Vol.2

Coulson and Richardson’s
CHEMICAL ENGINEERING
VOLUME 2
FIFTH EDITION
Particle Technology and
Separation Processes

Related Butterworth-Heinemann Titles in the Chemical Engineering Series by
J. M. COULSON & J. F. RICHARDSON
Chemical Engineering, Volume 1, Sixth edition
Fluid Flow, Heat Transfer and Mass Transfer
(withJ.R.BackhurstandJ.H.Harker)
Chemical Engineering, Volume 3, Third edition
Chemical and Biochemical Reaction Engineering, and Control
(edited by J. F. Richardson and D. G. Peacock)
Chemical Engineering, Volume 6, Third edition
Chemical Engineering Design
(R.K.Sinnott)
Chemical Engineering, Solutions to Problems in Volume 1
(J. R. Backhurst, J. H. Harker and J. F. Richardson)
Chemical Engineering, Solutions to Problems in Volume 2
(J. R. Backhurst, J. H. Harker and J. F. Richardson)

Coulson and Richardson’s
CHEMICAL ENGINEERING
VOLUME 2
FIFTH EDITION
Particle Technology and
Separation Processes
J. F. RICHARDSON
University of Wales Swansea
and
J. H. HARKER
University of Newcastle upon Tyne
with
J. R. BACKHURST
University of Newcastle upon Tyne
OXFORD AMSTERDAM BOSTON LONDON NEW YORK PARIS
SAN DIEGO SAN FRANCISCO SINGAPORE SYDNEY TOKYO

Butterworth-Heinemann
An imprint of Elsevier Science
Linacre House, Jordan Hill, Oxford OX2 8DP
225 Wildwood Avenue, Woburn, MA 01801-2041
First published 1955
Reprinted (with revisions) 1956, 1959, 1960
Reprinted 1962
Second edition 1968
Reprinted 1976
Third edition (SI units) 1978
Reprinted (with revisions) 1980, 1983, 1985, 1987, 1989
Fourth edition 1991
Reprinted (with revisions) 1993, 1996, 1997, 1998, 1999, 2001
Fifth edition 2002
Copyright 1991, 2002, J. F. Richardson and J. H. Harker. All rights reserved
The right of J. F. Richardson and J. H. Harker to be identified as the authors of this work has been asserted in
accordance with the Copyright, Designs and Patents Act 1988
All rights reserved. No part of this publication may be reproduced in
any material form (including photocopying or storing in any medium by
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ISBN 0 7506 4445 1
Typeset by Laserwords Private Limited, Chennai, India
Printed and bounded in Great Britain by the Bath Press, Bath

Preface to the Fifth Edition xvii.......................................
Preface to the Fourth Edition xix....................................
Preface to the 1983 Reprint of the Third Edition xxi.....
Preface to Third Edition xxiii.............................................
Preface to Second Edition xxv.........................................
Preface to First Edition xxvii..............................................
Acknowledgements xxix...................................................
INTRODUCTION xxxi..........................................................
1 Particulate Solids 1....................................................
1.1. INTRODUCTION 1.....................................................
1.2. PARTICLE CHARACTERISATION 2.........................
1.3. PARTICULATE SOLIDS IN BULK 22..........................
1.4. BLENDING OF SOLID PARTICLES 30.......................
1.5. CLASSIFICATION OF SOLID PARTICLES 37............
1.6. SEPARATION OF SUSPENDED SOLID
PARTICLES FROM FLUIDS 67..........................................
1.7. FURTHER READING 91..............................................
1.8. REFERENCES 92........................................................
1.9. NOMENCLATURE 93..................................................
2 Particle Size Reduction and Enlargement 95............
2.1. INTRODUCTION 95.....................................................
2.2. SIZE REDUCTION OF SOLIDS 95..............................
2.3. TYPES OF CRUSHING EQUIPMENT 106....................
2.4. SIZE ENLARGEMENT OF PARTICLES 137.................
2.5. FURTHER READING 143..............................................
2.6. REFERENCES 143........................................................
2.7. NOMENCLATURE 144..................................................
3 Motion of Particles in a Fluid 146.................................