Timothy J. Mason - Böcker

It has been recognised for many years that power ultrasound has great potential for uses in a wide variety of processes in the chemical and allied industries. Reported applications include cleaning, sterilisation, flotation, drying, degassing, defoaming, soldering, plastic welding, drilling, filtration, homogenisation, emulsification, dissolution, deaggregation of powder, biological cell disruption, extraction, crystallisation and, more recently, as a stimulus for chemical reactions. With the increasing use of power ultrasound in chemistry comes the need for specialist text books covering this emerging discipline. This book is suitable for chemists and chemical engineers at all levels who wish to gain a rapid insight into what is becoming a standard method in the chemical laboratory. It is designed to answer the following questions: What is sonochemistry? Why is it important? What systems are affected by sonochemistry? What are the major applications of this technique? What types of ultrasonic equipment are available? How do the different types of equipment compare? How is the equipment best configured for chemical applications? What parameters can be changed to optimise sonochemical results? What equipment is available for the scale-up of sonochemistry?

Practical Sonochemistry: Applications of Power Ultrasound in Chemistry and Processing, Third Edition conveys the increasing growth in applications and equipment to power ultrasound. The book is written primarily for graduate students, postdoc researchers, and academics in applied chemistry and chemical engineering, as well as technicians and operators in relevant industry. Sonochemistry can do lots of amazing things in many different fields - but how and where do you start with applying it? This thoroughly updated edition offers a ground-up introduction to the fundamentals, applying power ultrasound to both lab and large-scale applications.The book answer questions such as:

Does my laboratory have the equipment- what do I need?I have the equipment, but I have no idea how it works or how to use it- where do I start?I want to apply sonochemistry to a new reaction or processing method - what is the best approach?What types of sonochemistry equipment are available on the market and which is the best to choose?Can I scale up my reaction and if so, how do I do it, given that ultrasound is non-linear?Fully updated third edition conveys the increasing growth in applications and equipment to power ultrasoundProvides detailed descriptions of the newest ultrasonic equipment and its applications, which offer a wide range of frequencies with more reproducible experimentation and a variety of scale-up systemsDemonstrates the practical laboratory uses of ultrasound technology for industrial scale performanceIncludes useful exercises to familiarize readers with sonochemical operations

Sonochemistry is studied primarily by chemists and sonoluminescence mainly by physicists, but a single physical phenomenon -- acoustic cavitation -- unites the two areas. The physics of cavitation bubble collapse, is relatively well understood by acoustical physicists but remains practically unknown to the chemists. By contrast, the chemistry that gives rise to electromagnetic emissions and the acceleration of chemical reactions is familiar to chemists, but practically unknown to acoustical physicists. It is just this knowledge gap that the present volume addresses. The first section of the book addresses the fundamentals of cavitation, leading to a more extensive discussion of the fundamentals of cavitation bubble dynamics in section two. A section on single bubble sonoluminescence follows. The two following sections address the new scientific discipline of sonochemistry, and the volume concludes with a section giving detailed descriptions of the applications of sonochemistry. The mixture of tutorial lectures and detailed research articles means that the book can serve as an introduction as well as a comprehensive and detailed review of these two interesting and topical subjects.

In the 1980’s sonochemistry was considered to be a rather restricted branch of chemistry mainly involving the ways in which ultrasound could improve synthetic procedures, predominantly in heterogeneous systems and particularly for organometallic reactions. This volume traces the evolution of sonochemistry from a century ago when the effects of acoustic cavitation were first reported almost as a scientific curiosity, through the 1980’s to the present. It describes the ways in which scientific interest grew rapidly during the 1990’s with the formation of the European Society of Sonochemistry in 1990 and the launch of a new journal Ultrasonics Sonochemistry in 1994. It also includes two chapters relating to the evolution of the subject as seen through the particular experiences of the authors Tim Mason and Mircea Vinatoru, both pioneers of sonochemistry. One chapter is devoted to the ultrasonically assisted extraction (UAE) of chemicals from plant material. This also illustrates the different ways in which sonochemical technologies can be applied in both batch and flow systems leading to the development of large-scale processing. The other chapter relating to environmental protection shows the wide range of applications of sonochemistry in this important field for both biological and chemical decontamination.

In the 1980’s sonochemistry was considered to be a rather restricted branch of chemistry involving the ways in which ultrasound could improve synthetic procedures, predominantly in heterogeneous systems and particularly for organometallic reactions. Within a few years the subject began to expand into other disciplines including food technology, environmental protection and the extraction of natural materials. Scientific interest grew and led to the formation of the European Society of Sonochemistry in 1990 and the launch of a new journal Ultrasonics Sonochemistry in 1994. The subject continues to develop as an exciting and multi-disciplinary science with the participation of not only chemists but also physicists, engineers and biologists. The resulting cross-fertilisation of ideas has led to the rapid growth of interdisciplinary research and provided an ideal way for young researchers to expand their knowledge and appreciation of the ways in which different sciences can interact. It expands scientific knowledge through an opening of the closed doors that sometimes restrict the more specialist sciences. The journey of exploration in sonochemistry and its expansion into new fields of science and engineering is recounted in "Sonochemistry Evolution and Expansion" written by two pioneers in the field. It is unlike other texts about sonochemistry in that it follows the chronological developments in several very different applications of sonochemistry through the research experiences of the two authors Tim Mason and Mircea Vinatoru. Designed for chemists and chemical engineers Written by two experts and practitioners in the subject Volume 1 covers the historical background and evolution of sonochemistry Volume 2 explains the wider applications and expansion of the subject VOLUME 2 Applications and Developments Volume 2 contains six chapters which detail the developments of sonochemistry in fields which continue to attract considerable research and development interest from academia and industry. The topics range from the important developments in chemical synthesis through food technology and materials processing to therapeutic ultrasound. The authors have made contributions to all of these and so the content is written in a way which should be understandable to readers whose expertise may not necessarily be in the individual topic. Each of the applications and developments described help to illustrate not only the diverse nature of sonochemistry but also the unifying theme of the effects of acoustic cavitation on a wide range of procedures.