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Guest editorial foams in flotation and fractionation.

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ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
Asia-Pac. J. Chem. Eng. 2009; 4: 179
Published online in Wiley InterScience
(www.interscience.wiley.com) DOI:10.1002/apj.226
Special Theme Editorial
Guest editorial: foams in flotation and fractionation
Paul Stevenson has been a Research Academic at the University of Newcastle (Australia) for 6 years. He gained
degrees in Chemical Engineering from the University of Cambridge, before working as a Japanese Convertible
Bond Trader and an independent Racecourse Bookmaker. He undertook doctoral studies in Cambridge before
researching flow assurance problems in subsea oil flowlines for the Consortium on Transient Multiphase Flow.
In addition to froth, he has active research interests in welding technology, hydraulic conveying, slug flow,
the design of milking machines and the gestation of instabilities in betting markets.
Geoffrey Evans is Professor of Chemical Engineering at the University of Newcastle with research focus on
the interfacial phenomena controlling the behavior of multiphase systems. In particular, his investigations have
ranged from bubble break-up and coalescence, emulsion behavior, interfacial mass transfer, through to the
influence of turbulence on the interaction of bubbles and suspended particles. His work has had applications
in water treatment, and minerals and metallurgical processing industries. Professor Evans published over 120
publications and reports in the area.
Pneumatic froths are a fundamental element in the
processes of froth flotation and foam fraction. Given the
importance of both the established minerals processing
industry, and the emerging bioengineering sector in the
region, pneumatic foams are thus of special interest
to process engineers in the Asia–Pacific zone. A
number of leading authors in these two fields have
kindly contributed fully peer-reviewed papers to this
special edition of the Asia–Pacific Journal of Chemical
Engineering.
The call for papers garnered a stronger response from
the foam fractionation community than it did from froth
flotation researchers. This is, we feel, an indication
that this exciting and emerging technology is starting
to gain significant attention, some four decades after
 2009 Curtin University of Technology and John Wiley & Sons, Ltd.
Robert Lemlich’s seminal work in the field. We are
confident that the coming years will see progress made
in illuminating the physical processes that underpin
foam fractionation, as well as practical innovation to
make the process truly commercially viable.
We would like to thank the manuscript reviewers for
their help and insight, and we are especially grateful to
Dr Peter Martin who provided editorial help.
Paul Stevenson and Geoffrey Evans
Centre for Advanced Particle Processing, University of
Newcastle, NSW 2308, Australia;
Email: Paul.Stevenson@newcastle.edu.au
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