Fluoropolymer Applications in the Chemical Processing Industries


Book Description

Fluoropolymer Applications in Chemical Processing Industries: The Definitive User's Guide and Handbook, Second Edition, contains the most extensive collection of data and information on fluoropolymer applications in chemical processing industries. Because of their superior properties, fluoropolymers have been rapidly replacing metal alloys for corrosion inhibition in chemical processing equipment. This book is a complete compendium of information about fluoropolymer lining materials and structural piping and tubing. Fluoropolymer surfaces preserve purity of processing streams in the chemical processing, plastics, food, pharmaceutical, semiconductor, and pulp and paper industries. Updated to reflect major changes since 2004, this book contains practical, problem-solving tools for professionals in those industries. Equipment manufacturers, plant operators, and product design and manufacturing engineers all will benefit from the in-depth knowledge provided. This new edition includes new fluoropolymer grades and new examples of the fluoropolymer role in preventing corrosion. New fabrication techniques have been added, and additional emphasis has been placed on adhesion and welding techniques. New sections have been added on inspection of new linings, and in-service inspection – including inspection frequency, acceptance criteria, fitness for service evaluation, and reparability. - Includes extensive guidelines for the selection of fluoropolymers for corrosion control - Features a detailed 'how-to' on processes that convert fluoropolymers into shapes and parts - Discusses fabrication techniques to finish the fluoropolymer components before exposure to harsh chemical environments - Includes laboratory techniques to determine the cause of part failure, and a modeling methodology to predict and analyze failure of fluoropolymer parts




Fundamental Modeling of Membrane Systems


Book Description

Fundamental Modelling of Membrane Systems: Membrane and Process Performance summarizes the state-of-the-art modeling approaches for all significant membrane processes, from molecular transport, to process level, helping researchers and students who carry out experimental research save time and accurately interpret experimental data. The book provides an overview of the different membrane technologies, handling micro-, ultra-, and nanofiltration, reverse and forward osmosis, pervaporation, gas permeation, supported liquid membranes, membrane contactors, membrane bioreactors and ion-exchange membrane systems. Examples of hybrid membrane systems are also included. - Presents an accessible reference on how to model membranes and membrane processes - Provides a clear, mathematical description of mass transfer in membrane systems - Written by well-known, prominent authors in the field of membrane science




Current Topics in Elastomers Research


Book Description

From weather-proof tires and artificial hearts to the o-rings and valve seals that enable successful space exploration, rubber is an indispensable component of modern civilization. Stiff competition and stringent application requirements foster continuous challenges requiring manufacturers to fund ever-expanding research projects. However, this vas




Membrane Technology: Applications to Industrial Wastewater Treatment


Book Description

This publication presents the lectures given at the course on Advanced Separation Technology for Industrial Waste Minimization: Environmental and Analytical Aspects (13-15 October, 1992, Ispra, Italy) organized jointly by the Technical University of Lisbon, University of Calabria and the Environment Institute of the Joint Research Centre of the Commission of the European Communities at Ispra. This course is integrated in a programme for education and training in Advanced Separation Technology for Industrial Waste Minimization supported by the Community Action Programme for Education and Training for Technology (COMETT II). The lecture material is based on case studies of importance to textile, tanneries, pulp and paper, metal finishing and electroplating, food, and other industries. Environmental regulations have lead industrial engineers to search for more efficient, less energy consuming and less waste producing processes. Membrane-based separation processes contributed to recover water, raw materials and energy and to achieve simultaneously pollution control. Along this book emphasis will be given to this fast growing area of process technology.




Applications of Membrane Technology for Food Processing Industries


Book Description

Membranes processing techniques are used to help separate chemical components based on molecular size under specific pressure. A great advantage of membrane processing techniques is that it is a non-thermal processing technique, which can retain enormous bioactive constituents to a greater extent. Being a less energy intensive process, this technique is widely used in several food processing industries such as in the clarification of fruit juices and wine; the concentration of milk; the preparation of whey protein concentrate; and water and waste treatment, among others. Applications of Membrane Technology for Food Processing Industries introduces membrane processing techniques, presenting principles, theory and operational conditions for achieving efficient quality product. It discusses different types of membrane processing techniques viz. reverse osmosis, nanofiltration, ultrafiltration, electro dialysis, microfiltration, pervaporation, including its applications, advantages and disadvantages. Key Features: Deals with the retention of antioxidants by using novel membrane processing techniques Includes the application of membrane processing techniques in whey processing Explains the method for degumming, dewaxing and decolorization of edible crude oils Narrates application of membrane processing techniques in waste water treatment for efficient use Readers, such as professors, scientist, research scholars, students and industrial personnel, will come to know about the current trends in use of membrane processing techniques for its application in several food processing industries. This book can be a ready reference for the food industrial industry for manufacturing of deacidified clarified fruit juices and wine by using integrated membrane technique approach. In a nutshell, this book will benefit food scientist, academicians, students and food industrial persons by providing in-depth knowledge about membrane processing of foods for quality retention and also for efficient consumer acceptability.




Membrane Separations Technology


Book Description

The field of membrane separation technology is presently in a state of rapid growth and innovation. Many different membrane separation processes have been developed during the past half century and new processes are constantly emerging from academic, industrial, and governmental laboratories. While new membrane separation processes are being conceived with remarkable frequency, existing processes are also being constantly improved in order to enhance their economic competitiveness. Significant improvements are currently being made in many aspects of membrane separation technology: in the development of new membrane materials with higher selectivity and/or permeability, in the fabrication methods for high-flux asymmetric or composite membranes, in membrane module construction and in process design. Membrane separation technology is presently being used in an impressive variety of applications and has generated businesses totalling over one billion U.S. dollars annually.The main objective of this book is to present the principles and applications of a variety of membrane separation processes from the unique perspectives of investigators who have made important contributions to their fields. Another objective is to provide the reader with an authoritative resource on various aspects of this rapidly growing technology. The text can be used by someone who wishes to learn about a general area of application as well as by the knowledgeable person seeking more detailed information.




Polymer Permeability


Book Description

Polymers are permeable, whilst ceramics, glasses and metals are gener ally impermeable. This may seem a disadvantage in that polymeric containers may allow loss or contamination of their contents and aggressive substances such as water will diffuse into polymeric struc tures such as adhesive joints or fibre-reinforced composites and cause weakening. However, in some cases permeability is an advantage, and one particular area where this is so is in the use of polymers in drug delivery systems. Also, without permeable polymers, we would not enjoy the wide range of dyed fabrics used in clothing and furnishing. The fundamental reason for the permeability of polymers is their relatively high level of molecular motion, a factor which also leads to their high levels of creep in comparison with ceramics, glasses and metals. The aim of this volume is to examine some timely applied aspects of polymer permeability. In the first chapter basic issues in the mathema tics of diffusion are introduced, and this is followed by two chapters where the fundamental aspects of diffusion in polymers are presented. The following chapters, then, each examine some area of applied science where permeability is a key issue. Each chapter is reasonably self-contained and intended to be informative without frequent outside reference. This inevitably leads to some repetition, but it is hoped that this is not excessive.




Polymer Science and Engineering


Book Description

Polymers are used in everything from nylon stockings to commercial aircraft to artificial heart valves, and they have a key role in addressing international competitiveness and other national issues. Polymer Science and Engineering explores the universe of polymers, describing their properties and wide-ranging potential, and presents the state of the science, with a hard look at downward trends in research support. Leading experts offer findings, recommendations, and research directions. Lively vignettes provide snapshots of polymers in everyday applications. The volume includes an overview of the use of polymers in such fields as medicine and biotechnology, information and communication, housing and construction, energy and transportation, national defense, and environmental protection. The committee looks at the various classes of polymersâ€"plastics, fibers, composites, and other materials, as well as polymers used as membranes and coatingsâ€"and how their composition and specific methods of processing result in unparalleled usefulness. The reader can also learn the science behind the technology, including efforts to model polymer synthesis after nature's methods, and breakthroughs in characterizing polymer properties needed for twenty-first-century applications. This informative volume will be important to chemists, engineers, materials scientists, researchers, industrialists, and policymakers interested in the role of polymers, as well as to science and engineering educators and students.




Nonthermal Plasmas for Materials Processing


Book Description

NONTHERMAL PLASMAS FOR MATERIALS PROCESSING This unique book covers the physical and chemical aspects of plasma chemistry with polymers and gives new insights into the interaction of physics and chemistry of nonthermal plasmas and their applications in materials science for physicists and chemists. The properties and characteristics of plasmas, elementary (collision) processes in the gas phase, plasma surface interactions, gas discharge plasmas and technical plasma sources, atmospheric plasmas, plasma diagnostics, polymers and plasmas, plasma polymerization, post-plasma processes, plasma, and wet-chemical processing, plasma-induced generation of functional groups, and the chemical reactions on these groups along with a few exemplary applications are discussed in this comprehensive but condensed state-of-the-art book on plasma chemistry and its dependence on plasma physics. While plasma physics, plasma chemistry, and polymer science are often handled separately, the aim of the authors is to harmoniously join the physics and chemistry of low-pressure and atmospheric-pressure plasmas with polymer surface chemistry and polymerization and to compare such chemistry with classic chemistry. Readers will find in these chapters Interaction of plasma physics and chemistry in plasmas and at the surface of polymers; Explanation and interpretation of physical and chemical mechanisms on plasma polymerization and polymer surface modification; Introduction of modern techniques in plasma diagnostics, surface analysis of solids, and special behavior of polymers on exposure to plasmas; Discussion of the conflict of energy-rich plasma species with permanent energy supply and the much lower binding energies in polymers and alternatives to avoid random polymer decomposition Technical applications such as adhesion, cleaning, wettability, textile modification, coatings, films, etc. New perspectives are explained about how to use selective and mild processes to allow post-plasma chemistry on non-degraded polymer surfaces. Audience Physicists, polymer chemists, materials scientists, industrial engineers in biomedicine, coatings, printing, etc.