Supercritical Fluid Extraction
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Supercritical Fluid Extraction
Author | : Mark A. McHugh,Val J. Krukonis |
Publsiher | : Butterworth-Heinemann |
Total Pages | : 528 |
Release | : 1986 |
Genre | : Law |
ISBN | : UOM:39015010875998 |
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Supercritical Fluid Extraction is a technique in which CO2 is used under extremely high pressure to separate solutions. Separations is basic to all process industries & supercritical fluid extraction is a specific type which is receiving a high level of attention, The book will combine basic fundamentals with industrial applications.
Supercritical Fluid Extraction
Author | : Mark McHugh,Val Krukonis |
Publsiher | : Elsevier |
Total Pages | : 608 |
Release | : 2013-10-22 |
Genre | : Science |
ISBN | : 9780080518176 |
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Supercritical Fluid Extraction is a technique in which CO2 is used under extremely high pressure to separate solution (e.g., removing caffeine from coffee). Separations is basic to all process industries and supercritical fluid extraction is a specific type which is receiving a high level of attention. The book will combine basic fundamentals with industrial applications. The second edition has been expanded and updated and includes new chapters on chromatography and food processing. "...this is an excellent book which is both instructive and amusing to read. Its true value is neatly summarised in one of the closing sentences: 'We have supplied you with the guidelines and criteria which you can now apply when considering supercritical fluids for your own needs.'' - Chemistry in Britain, February 1995
Analytical Supercritical Fluid Extraction
Author | : Maria D. Luque de Castro,Miguel Valcarcel,Maria T. Tena |
Publsiher | : Springer Science & Business Media |
Total Pages | : 332 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9783642786730 |
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Recent advances in analytical chemistry have turned it into a virtually unrecognizable science compared to a few decades ago, when it lagged behind other sciences and techniques. However, advances in analytical science have been far from universal: while innovations in instrumentation and data acquisition and processing systems have reached unprecedented levels thanks to parallel breakthroughs in computer science and chemo metrics, progress in preliminary operations has been much slower despite their importance to analytical results. Thus, such clear trends in analytical process development as automation and miniaturization have not reached preliminary operations to the same extent, even though this area is pro bably in the greatest need. Improvement in preliminary operations is thus an urgent goal of analytical chemistry on the verge of the twenty first century. Increased R&D endeavours and manufacture of commercially available automatic equipment for implementation of the wide variety of operations that separate the uncollected, unmeasured, untreated sample from the signal measuring step are thus crucial on account of the wide variability of such operations, which precludes development of all-purpose equipment, and the complexity of some, particularly relating to solid samples. Supercritical fluid extraction opens up interesting prospects in this context and is no doubt an effective approach to automatioI1 and mini aturization in the preliminary steps of the analytical process. The dramatic developments achieved in its short life are atypical in many respects.
Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds
Author | : Jose L. Martinez |
Publsiher | : CRC Press |
Total Pages | : 424 |
Release | : 2007-11-28 |
Genre | : Science |
ISBN | : 9781420006513 |
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Enhanced concern for the quality and safety of food products, increased preference for natural products, and stricter regulations on the residual level of solvents, all contribute to the growing use of supercritical fluid technology as a primary alternative for the extraction, fractionation, and isolation of active ingredients. As a solvent-free p
Supercritical Fluid Extraction
Author | : Jason Lindy |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2014-01-12 |
Genre | : Supercritical fluid extraction |
ISBN | : 1634633105 |
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The technology of application of fluids in the supercritical state is a viable option and a high quality scientific method for obtaining materials, insulation, and extractions among other situations in which it may be applied yielding a high quality material. Due to its wide range of application, it has been extensively used to investigate different raw materials focusing on obtaining high quality products and applicability in various industrial segments. Its use has been mentioned in several studies as a high-quality and efficient technology for obtaining high-value added products. This book discusses the technology used in supercritical fluid extraction, as well as its applications and limitations.
Analysis with Supercritical Fluids Extraction and Chromatography
Author | : Bernd Wenclawiak |
Publsiher | : Springer Science & Business Media |
Total Pages | : 225 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9783642774744 |
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The use of supercritical fluids in analytical chemistry is still grow ing. More and more analysts are discovering the favorable advan tages for a number of applications. Especially supercritical fluid extraction (SFE) has attracted a lot of interest in recent years due to its simplicity. Supercritical fluid chromatography (SFC) has become better established and the development of this technique has been accelerated by the many applications with capillary col umns which have been published in the literature. At first SFC equipment was based on instruments commonly used for liquid chromatography, and the first commercial in struments were derived from this technology. However, capillary columns can be much more easily interfaced to gas chromatogra phy equipment especially to the detectors commonly used for Oc. Many stationary phases both for packed micro columns and capillary columns have been designed for SFC purposes extending this technology to LC and OC. The most common fluid applied in SFC and SFE is carbon dioxide. The advantages of supercritical CO , such as having dif 2 fusivity like a gas and solvating power depending on temperature and pressure, are also valid for other fluids and modified fluids. Both properties are valuable for sample extraction and extraction selectivity.
Gas Extraction
Author | : Gerd Brunner |
Publsiher | : Springer Science & Business Media |
Total Pages | : 396 |
Release | : 2013-06-29 |
Genre | : Science |
ISBN | : 9783662073803 |
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Application of compressed gases as solvents has found widespread interest within the scientific community. Its processes have industrial applications. Gas Extraction deals with the possibilities of supercritical gases as solvents for separation processes. The volume combines physico-chemical aspects with chemical engineering methods. The text generalizes as far as possible, and treats examples in detail. Gas Extraction covers, for the first time, the subject in textbook form. Most of the examples provide new results that will be helpful for practicing scientists, engineers, and students who want to make use of the techniques.
Supercritical Fluid Cleaning
Author | : Samuel P. Sawan |
Publsiher | : Elsevier |
Total Pages | : 307 |
Release | : 1998-12-31 |
Genre | : Technology & Engineering |
ISBN | : 9780815519164 |
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Although supercritial 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 (CO2) as a cleaning solvent. The closing chapters focus on more practical considerations such as scaleup, equipment costs, and financial analysis.