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Supercritical Fluid Cleaning

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Supercritical Fluid Cleaning
Author: John McHardy, Samuel P. Sawan
ISBN 0-8155-1416-6

Published: 1998
Pages: 290, Figures: 51, Tables: 42

Price: $125.00 + S&H
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  • Table of Contents
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Although supercritical fluid (SCF) technology is now widely used in extraction and purification processes (in the petrochemical, food and pharmaceuticals industries), this book is the first to address the new application of cleaning. The objective is to provide a roadmap for readers who want to know whether SCF technology can meet their own processing and cleaning needs. It is particularly helpful to those striving to balance the requirements for a clean product and a clean environment. The interdisciplinary subject matter will appeal to scientists and engineers in all specialties ranging from materials and polymer sciences to chemistry and physics. It is also useful to those developing new processes for other applications, and references given at the end of each chapter provide links to the wider body of SCF literature.
The book is organized with topics progressing from the fundamental nature of the supercritical state, through process conditions and materials interactions, to economic considerations. Practical examples are included to show how the technology has been successfully applied. The first four chapters consider principles governing SCF processing, detailing issues such as solubility, design for cleanability, and the dynamics of particle removal. The next three chapters discuss surfactants and microemulsions, SCF interaction with polymers, and the use of supercritical carbon dioxide as a cleaning solvent. The closing chapters focus on more practical considerations such as scaleup, equipment costs, and financial analysis.
Many contributors to this book belong to the "Joint Association for the Advancement of SCF Technology: (JAAST). A primary motivation for the formation of JAAST was the growing worldwide need to replace ozone-depleting compounds (ODCs) and smog-forming volatile organic compounds (VOCs) in manufacturing processes. Although aqueous cleaning has been adopted successfully for many applications, water is not a panacea and SCF technology has emerged as a leading alternative.

The Supercritical State
Solubility in Supercritical Fluid Cleaning
Design for Cleanability
Dynamics of Particle Removal by Supercritical Carbon Dioxide
Surfactants and Microemulsions in Supercritical Fluids
Evaluation of Supercritical Fluid Interactions with Polymeric Materials
A Survey on the Use of Supercritical Carbon Dioxide as a Cleaning Solvent
Precision Cleaning with Supercritical Fluid: A Case Study
Scaleup Considerations
Equipment Cost Considerations and Financial Analysis of Supercritical Fluid Processing
A Practical Guide to Supercritical Fluid Cleaning

John McHardy is presently scientist Component and Materials Laboratory Hughes Aircraft Company, where he has played a major role in the technical and commercial development of supercritical fluid cleaning. He has made many contributions to environmental and electrochemical technology, and has acted as an internal consultant in area: such as corrosion, metal migration batteries, heterogeneous catalysis and solid state materials. Dr. McHardy has to his credit over twenty-five research publications, one book, and seven patents.

Samuel P. Sawan is professor, Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts. He is a member of the American Chemical Society, the Society of Plastic Engineers, Sigma Xi and SPIE.

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