Metal Oxides in Heterogeneous Catalysis

Download Metal Oxides in Heterogeneous Catalysis PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 0128116323
Total Pages : 620 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!


Book Synopsis Metal Oxides in Heterogeneous Catalysis by : Jacques C. Vedrine

Download or read book Metal Oxides in Heterogeneous Catalysis written by Jacques C. Vedrine and published by Elsevier. This book was released on 2018-01-11 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxides in Heterogeneous Catalysis is an overview of the past, present and future of heterogeneous catalysis using metal oxides catalysts. The book presents the historical, theoretical, and practical aspects of metal oxide-based heterogeneous catalysis. Metal Oxides in Heterogeneous Catalysis deals with fundamental information on heterogeneous catalysis, including reaction mechanisms and kinetics approaches.There is also a focus on the classification of metal oxides used as catalysts, preparation methods and touches on zeolites, mesoporous materials and Metal-organic frameworks (MOFs) in catalysis. It will touch on acid or base-type reactions, selective (partial) and total oxidation reactions, and enzymatic type reactions The book also touches heavily on the biomass applications of metal oxide catalysts and environmentally related/depollution reactions such as COVs elimination, DeNOx, and DeSOx. Finally, the book also deals with future trends and prospects in metal oxide-based heterogeneous catalysis. - Presents case studies in each chapter that provide a focus on the industrial applications - Includes fundamentals, key theories and practical applications of metal oxide-based heterogeneous catalysis in one comprehensive resource - Edited, and contributed, by leading experts who provide perspectives on synthesis, characterization and applications

In-situ Characterization of Heterogeneous Catalysts

Download In-situ Characterization of Heterogeneous Catalysts PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118000161
Total Pages : 500 pages
Book Rating : 4.1/5 (18 download)

DOWNLOAD NOW!


Book Synopsis In-situ Characterization of Heterogeneous Catalysts by : José A. Rodriguez

Download or read book In-situ Characterization of Heterogeneous Catalysts written by José A. Rodriguez and published by John Wiley & Sons. This book was released on 2013-06-10 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: HELPS RESEARCHERS DEVELOP NEW CATALYSTS FOR SUSTAINABLE FUEL AND CHEMICAL PRODUCTION Reviewing the latest developments in the field, this book explores the in-situ characterization of heterogeneous catalysts, enabling readers to take full advantage of the sophisticated techniques used to study heterogeneous catalysts and reaction mechanisms. In using these techniques, readers can learn to improve the selectivity and the performance of catalysts and how to prepare catalysts as efficiently as possible, with minimum waste. In-situ Characterization of Heterogeneous Catalysts features contributions from leading experts in the field of catalysis. It begins with an introduction to the fundamentals and then covers: Characterization of electronic and structural properties of catalysts using X-ray absorption fine structure spectroscopy Techniques for structural characterization based on X-ray diffraction, neutron scattering, and pair distribution function analysis Microscopy and morphological studies Techniques for studying the interaction of adsorbates with catalyst surfaces, including infrared spectroscopy, Raman spectroscopy, EPR, and moderate pressure XPS Integration of techniques that provide information on the structural properties of catalysts with techniques that facilitate the study of surface reactions Throughout the book, detailed examples illustrate how techniques for studying catalysts and reaction mechanisms can be applied to solve a broad range of problems in heterogeneous catalysis. Detailed figures help readers better understand how and why the techniques discussed in the book work. At the end of each chapter, an extensive set of references leads to the primary literature in the field. By explaining step by step modern techniques for the in-situ characterization of heterogeneous catalysts, this book enables chemical scientists and engineers to better understand catalyst behavior and design new catalysts for green, sustainable fuel and chemical production.

Metal Oxide Catalysis, 2 Volume Set

Download Metal Oxide Catalysis, 2 Volume Set PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 9783527318155
Total Pages : 916 pages
Book Rating : 4.3/5 (181 download)

DOWNLOAD NOW!


Book Synopsis Metal Oxide Catalysis, 2 Volume Set by : S. David Jackson

Download or read book Metal Oxide Catalysis, 2 Volume Set written by S. David Jackson and published by John Wiley & Sons. This book was released on 2008-11-24 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its two-volume structure, this handbook and ready reference allows for comprehensive coverage of both characterization and applications, while uniform editing throughout ensures that the structure remains consistent. The result is an up-to-date review of metal oxides in catalysis. The first volume covers a range of techniques that are used to characterize oxides, with each chapter written by an expert in the field. Volume 2 goes on to cover the use of metal oxides in catalytic reactions. For all chemists and engineers working in the field of heterogeneous catalysis.

Advanced Catalysts and Nanostructured Materials

Download Advanced Catalysts and Nanostructured Materials PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 0080526551
Total Pages : 619 pages
Book Rating : 4.0/5 (85 download)

DOWNLOAD NOW!


Book Synopsis Advanced Catalysts and Nanostructured Materials by : William R. Moser

Download or read book Advanced Catalysts and Nanostructured Materials written by William R. Moser and published by Academic Press. This book was released on 1996-11-19 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time has come for an assessment of the most important techniques for the fabrication of advanced catalysts. Catalyst production alone is more than a billion dollar business each year, and the product value of chemical processes using advanced catalysts is a few trillion dollars annually. This book seeks to provide a modern, materials science account of the best and most current techniques for the synthesis of advanced catalytic materials. Until now, there has been no single book which contains a definitive and comprehensive description of the important technologies for catalyst synthesis within the context of modern materials science. Academic researchers both in the catalytic sciences and materials sciences must have the best synthesis technologies available to accomplish the preparation of solid-state materials of specific structure and morphology. Althugh the emphasis is on new synthetic techniques for catalytic applications, the bookpresents all of the important technologies for the fabrication of electronic and structural ceramics, and superconductors. - Novel Techniques for Advanced Materials - Nanostructured Materials Synthesis - Mesoporous Molecular Sieves - Pillared Clays - Heteropoly Acids - Nanostructured Supported Metal Catalysts - Nanostructured Metal Oxide Catalysts and Materials - Nanostructured Zeolite Materials - Vapor Phase Materials Synthesis - Sonochemical Materials Synthesis - Aerosol Methods of Catalyst Synthesis - Hydrodynamic Cavitational Techniques for Catalyst and Materials Synthesis - Novel Sol-Gel Methods for Catalyst Synthesis - Supercritical Methods for Materials Synthesis - Liquid Crystal Techniques for Mesoporous Materials - Micelle Techniques for Nanostructured Catalyst Preparation - Fluidized Bed Techniques in Chemical Vapor Deposition - Flame Methods of Advanced Catalyst Synthesis

Chemical Looping Partial Oxidation

Download Chemical Looping Partial Oxidation PDF Online Free

Author :
Publisher : Cambridge University Press
ISBN 13 : 1108160417
Total Pages : 497 pages
Book Rating : 4.1/5 (81 download)

DOWNLOAD NOW!


Book Synopsis Chemical Looping Partial Oxidation by : Liang-Shih Fan

Download or read book Chemical Looping Partial Oxidation written by Liang-Shih Fan and published by Cambridge University Press. This book was released on 2017-10-12 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive guide to the principles and techniques of chemical looping partial oxidation. With authoritative explanations from a pioneer of the chemical looping process, you will: • Gain a holistic overview of metal oxide reaction engineering, with coverage of ionic diffusion, nanostructure formation, morphological evolution, phase equilibrium, and recyclability properties of metal oxides during redox reactions • Learn about the gasification of solid fuels, the reforming of natural gas, and the catalytic conversion of methane to olefins • Understand the importance of reactor design and process integration in enabling metal oxide oxygen carriers to produce desired products • Discover other applications of catalytic metal oxides, including the production of maleic anhydride and solar energy conversions Aspen Plus® simulation software and results accompany the book online. This is an invaluable reference for researchers and industry professionals in the fields of chemical, energy and environmental engineering, and students studying process design and optimization.

Catalyst Deactivation 1997

Download Catalyst Deactivation 1997 PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 008052866X
Total Pages : 711 pages
Book Rating : 4.0/5 (85 download)

DOWNLOAD NOW!


Book Synopsis Catalyst Deactivation 1997 by : G.A. Fuentes

Download or read book Catalyst Deactivation 1997 written by G.A. Fuentes and published by Elsevier. This book was released on 1997-09-12 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalyst Deactivation 1997 focused on 9 key topical areas: carbon deposition and coke formation, chemicals, environmental catalysis, modeling, petroleum processing, poisoning, syngas conversion, techniques, and thermal degradation. All of these areas were well represented at the meeting; moreover, several review articles were presented that provide perspectives on new research and development thrusts. The proceedings of the meeting are organized with six review and award articles at the front of the volume followed by topical articles a keynote, 5-6 oral, and 2-3 poster papers. A list of authors is provided at the end of the book. It should be emphasized that all of the papers were ranked and reviewed by members of the Scientific Committee.

Industrial Catalysis

Download Industrial Catalysis PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 3527684646
Total Pages : 546 pages
Book Rating : 4.5/5 (276 download)

DOWNLOAD NOW!


Book Synopsis Industrial Catalysis by : Jens Hagen

Download or read book Industrial Catalysis written by Jens Hagen and published by John Wiley & Sons. This book was released on 2015-09-24 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in it's 3rd Edition, Industrial Catalysis offers all relevant information on catalytic processes in industry, including many recent examples. Perfectly suited for self-study, it is the ideal companion for scientists who want to get into the field or refresh existing knowledge. The updated edition covers the full range of industrial aspects, from catalyst development and testing to process examples and catalyst recycling. The book is characterized by its practical relevance, expressed by a selection of over 40 examples of catalytic processes in industry. In addition, new chapters on catalytic processes with renewable materials and polymerization catalysis have been included. Existing chapters have been carefully revised and supported by new subchapters, for example, on metathesis reactions, refinery processes, petrochemistry and new reactor concepts. "I found the book accesible, readable and interesting - both as a refresher and as an introduction to new topics - and a convenient first reference on current industrial catalytic practise and processes." Excerpt from a book review for the second edition by P. C. H. Mitchell, Applied Organometallic Chemistry (2007)

Heterogeneous Catalytic Oxidation

Download Heterogeneous Catalytic Oxidation PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Heterogeneous Catalytic Oxidation by : B. K. Hodnett

Download or read book Heterogeneous Catalytic Oxidation written by B. K. Hodnett and published by John Wiley & Sons. This book was released on 2000-07-13 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents

Precision Process Technology

Download Precision Process Technology PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9401117594
Total Pages : 722 pages
Book Rating : 4.4/5 (11 download)

DOWNLOAD NOW!


Book Synopsis Precision Process Technology by : M.P.C. Weijnen

Download or read book Precision Process Technology written by M.P.C. Weijnen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: New process technology strategies are required to cope with the future. Fossil feedstocks are losing ground in favour of renewable feedstocks and secondary resources. Conventional processing routes using thermal `sledgehammer' techniques are replaced by highly selective (bio)catalytic conversions. The future process engineer is neither allowed to think in terms of unit operations, nor to take for granted the conventional practice of continuous steady state processing. Hybrid systems and transient operations are more and more frequently encountered. The continuing impressive progress being made in process modelling and control will revolutionize the process industries. In the new generation of chemical production processes the keyword is precision. Precision in terms of selectivity and of efficiency, is required to maximize the utilisation of materials and energy. Moreover, enhanced precision is needed to exploit the quality of materials and energy to the full extent. Only by reducing the squandering of materials, energy and quality will a harmonious relationship be established between the process industries, the economy, and the environment. Process integration, as well as an integrated effort by the disciplines involved in process technology, will be of crucial importance in attaining the goals of precision process technology. These emerging strategies involve an active exchange of tools and ideas between a variety of disciplines, not only in plant design and operation, but even more in the early stages of process development and design. By looking from various angles at what the future has in store for the process industries, this volume systematically lifts the corners of the veil and may inspire to establish a new tradition of precision in process technology.

Proceedings 9th International Congress on Catalysis: Oxide catalysts and catalyst development

Download Proceedings 9th International Congress on Catalysis: Oxide catalysts and catalyst development PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 562 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Proceedings 9th International Congress on Catalysis: Oxide catalysts and catalyst development by :

Download or read book Proceedings 9th International Congress on Catalysis: Oxide catalysts and catalyst development written by and published by . This book was released on 1988 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elementary Reaction Steps in Heterogeneous Catalysis

Download Elementary Reaction Steps in Heterogeneous Catalysis PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9401116938
Total Pages : 482 pages
Book Rating : 4.4/5 (11 download)

DOWNLOAD NOW!


Book Synopsis Elementary Reaction Steps in Heterogeneous Catalysis by : R.W. Joyner

Download or read book Elementary Reaction Steps in Heterogeneous Catalysis written by R.W. Joyner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the proceedings of a NATO sponsored Advanced Research Workshop held from 1st November to 6th November 1992 in the delightful Chateau de Florans, Bedoin, Vaucluse, France and entitled 'Elementary Reaction Steps in Heterogeneous Catalysis. ' The organisers are grateful to the Science Committee of NATO for their support of this meeting. This is believed to be the first wide ranging NATO ARW in the field of heterogeneous catalysis for 20 years, following a previous venture organised in Sardinia by Basolo and Burwell, of Northwestern University, Illinois, USA [1]. This volume collects the lecture presentations and reports on the lively Panel discussions. The idea for the meeting evolved from a series of International Symposia on Quantum Chemistry and Mechanism in Heterogeneous Catalysis. The first of these was held in Lyon, France in 1986, the second in Krakow, Poland in 1988 and the third in Berkeley, California in 1990. The organising committee of the present meeting was Bernard Bigot, France, Tony Farragher, Netherlands, Richard Joyner, UK, Mme. Danielle Olivier, France, and Rutger van Santen, Netherlands, (Chairman). We wish to thank all members of the committee but in particular Bernard Bigot, who undertook the very extensive work involved in the local organisation with consummate skill and made our stay in Provence a great pleasure. Bernard Bigot's secretary, Mme. Marie-Noelle Coscat and Richard Joyner's secretary, Mrs. Pat Gibbs, also deserve our considerable thanks. There were fifty-four participants from eleven countries.

Modern Heterogeneous Oxidation Catalysis

Download Modern Heterogeneous Oxidation Catalysis PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 3527627553
Total Pages : 356 pages
Book Rating : 4.5/5 (276 download)

DOWNLOAD NOW!


Book Synopsis Modern Heterogeneous Oxidation Catalysis by : Noritaka Mizuno

Download or read book Modern Heterogeneous Oxidation Catalysis written by Noritaka Mizuno and published by John Wiley & Sons. This book was released on 2009-11-18 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a gap in the current literature, this comprehensive reference presents all important catalyst classes, including metal oxides, polyoxometalates, and zeolites. Readers will find here everything they need to know -- from structure design to characterization, and from immobilization to industrial processes. A true must-have for anyone working in this key technology.

Molecular Spectroscopy of Oxide Catalyst Surfaces

Download Molecular Spectroscopy of Oxide Catalyst Surfaces PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 706 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Molecular Spectroscopy of Oxide Catalyst Surfaces by : Anatoli Davydov

Download or read book Molecular Spectroscopy of Oxide Catalyst Surfaces written by Anatoli Davydov and published by John Wiley & Sons. This book was released on 2003-06-27 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: As in the study of transition metal complexes in solution, molecular spectroscopic methods - principally the infrared, ultraviolet/visible and electron spin resonance spectroscopies - have played key roles in establishing the concepts of coordination chemistry occurring at the surfaces of solids. This book describes the development of the principals of coordination chemistry of oxide surfaces using analyses of data obtained by these methods. The nature, properties, concentration of the surface adsorption centers and their influence on the character of interaction with different molecules are investigated. The book commences with an account of the basic theoretical principles and experimental techniques of the various spectroscopy methods, with special attention devoted to in situ measurements where the oxide or catalyst sample is in contact with the adsorbate or the reactant. A detailed account is presented of the methods for characterizing the oxidation state and degree of coordination of surface cations and oxygen anions by the adsorption of probe molecules. The complexation of many inorganic, organometallic and organic molecules with different oxide systems is critically examined, and a classification of formed surface compounds, based on the interaction with definite type of adsorption centers, is given. Possible mechanisms of numerous catalytic reactions, including the transformation of organic molecules over acidic catalysts via the carboionic mechanism, are discussed using the spectroscopic identifications of reaction intermediates. A comprehensive analysis of the literature on the interpretation of the spectra of surface compounds on oxides is presented. This highly illustrated and extensively referenced volume is intended for specialists working in the fields of surface physical chemistry, surface and materials sciences, and adsorption phenomena and is essential reading for those involved in the heterogeneous catalysis by transition metal-oxides.

Nanostructured Catalysts

Download Nanostructured Catalysts PDF Online Free

Author :
Publisher : Royal Society of Chemistry
ISBN 13 : 1847559875
Total Pages : 453 pages
Book Rating : 4.8/5 (475 download)

DOWNLOAD NOW!


Book Synopsis Nanostructured Catalysts by : Christian Hess

Download or read book Nanostructured Catalysts written by Christian Hess and published by Royal Society of Chemistry. This book was released on 2011-07-22 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives a comprehensive up-to-date summary of the existing information on the structural/electronic properties, chemistry and catalytic properties of vanadium and molybdenum containing catalysts. It discusses the importance of nanoscience for the controlled synthesis of catalysts with functional properties and introduces the necessary background regarding surface properties and preparation techniques, leading from a textbook level to the current state of knowledge. Then follows an extensive survey and analysis of the existing open and patent literature - an essential knowledge source for the development of the new generation of partial oxidation catalysts. Important examples from current research on partial oxidation reactions are reviewed from experts in the field. The next chapter discusses the importance of 2- and 3-dimensional model systems for a fundamental understanding of the structure of transition metal oxide catalysts and its correlation to reactivity. Finally, an outlook on research opportunities within the area of partial oxidation reactions is presented.

Third World Congress on Oxidation Catalysis

Download Third World Congress on Oxidation Catalysis PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 0080544711
Total Pages : 1277 pages
Book Rating : 4.0/5 (85 download)

DOWNLOAD NOW!


Book Synopsis Third World Congress on Oxidation Catalysis by : S.T. Oyama

Download or read book Third World Congress on Oxidation Catalysis written by S.T. Oyama and published by Elsevier. This book was released on 1997-09-12 with total page 1277 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall theme of the 3rd World Congress is "Atom Efficient Catalytic Oxidations for Global Technologies". This theme was chosen to stimulate the participants to report their findings with an emphasis on conserving valuable material in their catalytic transformations, as well as conserving energy, in an environmentally responsible manner. Progress towards this stated goal is substantial as evidenced by the tremendous response of the community in their participation of quality publications complied in these Proceedings of the Congress.The subjects presented span a wide range of oxidation reactions and catalysts. These include the currently important area of lower alkane oxidation to the corresponding olefins, unsaturated aldehydes, acids and nitriles.The four featured lectures and seven plenary lectures constitute the general background and overview of the subject matter at hand. The 104 contributed papers and 13 poster manuscripts, summarized in this compendium, probe new avenues to achieve catalytically efficient oxidation reactions for the future needs of mankind in a global environment.

Handbook of Maleic Anhydride Based Materials

Download Handbook of Maleic Anhydride Based Materials PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319294547
Total Pages : 642 pages
Book Rating : 4.3/5 (192 download)

DOWNLOAD NOW!


Book Synopsis Handbook of Maleic Anhydride Based Materials by : Osama M. Musa

Download or read book Handbook of Maleic Anhydride Based Materials written by Osama M. Musa and published by Springer. This book was released on 2016-09-22 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: A handbook on syntheses and properties, production processes, and applications of maleic anhydride and maleic anhydride derived products – all in one text. This handbook provides a comprehensive overview of maleic anhydride chemistry and applications from the professional perspective. With chapters written by leading R&D scientists from the chemical industry, and edited by the Vice President and ASI Technology Chief at Ashland Specialty Ingredients (ASI), Dr. Osama M. Musa, readers will find a unique perspective and summary of the latest advancements in the field of maleic anhydride science. Maleic anhydride is produced industrially on large scale (10E3 kt/annum). Its rich chemistry makes it an important raw material for numerous products and processes (e.g. for applications in polymers and coatings), many of which are covered in this handbook for the first time in a comprehensive manner. The broad scope spans topics ranging from production techniques (including topics such as processes, catalysis, trouble-shooting), synthesis and properties of small and polymeric maleic anhydride based compounds (focusing on industrially relevant compounds as well as emerging areas of importance) and in-depth and broad discussions of commercial maleic anhydride based applications.

The Activation of Dioxygen and Homogeneous Catalytic Oxidation

Download The Activation of Dioxygen and Homogeneous Catalytic Oxidation PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461530008
Total Pages : 503 pages
Book Rating : 4.4/5 (615 download)

DOWNLOAD NOW!


Book Synopsis The Activation of Dioxygen and Homogeneous Catalytic Oxidation by : D.H.R. Barton

Download or read book The Activation of Dioxygen and Homogeneous Catalytic Oxidation written by D.H.R. Barton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph consists of the proceedings of the Fifth International Symposium on the Activation of Dioxygen and Homogeneous Catalytic Oxidation, held in College Station, Texas, March 14-19, 1993. It contains an introductory chapter authored by Professors D. H. R. Barton and D. T. Sawyer, and twenty-nine chapters describing presentations by the plenary lecturers and invited speakers. One of the invited speakers, who could not submit a manuscript for reasons beyond his control, is represented by an abstract of his lecture. Also included are abstracts of forty-seven posters contributed by participants in the symposium. Readers who may wish to know more about the subjects presented in abstract form are invited to communicate directly with the authors of the abstracts. This is the fifth international symposium that has been held on this subject. The first was hosted by the CNRS, May 21-29, 1979, in Bendor, France (on the Island of Bandol). The second meeting was organized as a NATO workshop in Padova, Italy, June 24-27, 1984. This was followed by a meeting in Tsukuba, Japan, July 12-16, 1987. The fourth symposium was held at Balatonfured, Hungary, September 10-14, 1990. The sixth meeting is scheduled to take place in Delft, The Netherlands (late Spring, 1996); the organizer and host will be Professor R. A. Sheldon.