Download or read book Feasibility of Surfactant Free Supported Emulsion Liquid Membrane Extraction written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-31 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supported emulsion liquid membrane (SELM) is an effective means to conduct liquid-liquid extraction. SELM extraction is particularly attractive for separation tasks in the microgravity environment where density difference between the solvent and the internal phase of the emulsion is inconsequential and a stable dispersion can be maintained without surfactant. In this research, dispersed two-phase flow in SELM extraction is modeled using the Lagrangian method. The results show that SELM extraction process in the microgravity environment can be simulated on earth by matching the density of the solvent and the stripping phase. Feasibility of surfactant-free SELM (SFSELM) extraction is assessed by studying the coalescence behavior of the internal phase in the absence of the surfactant. Although the contacting area between the solvent and the internal phase in SFSELM extraction is significantly less than the area provided by regular emulsion due to drop coalescence, it is comparable to the area provided by a typical hollow-fiber membrane. Thus, the stripping process is highly unlikely to become the rate-limiting step in SFSELM extraction. SFSELM remains an effective way to achieve simultaneous extraction and stripping and is able to eliminate the equilibrium limitation in the typical solvent extraction processes. The SFSELM design is similar to the supported liquid membrane design in some aspects.Hu, Shih-Yao B. and Li, Jin and Wiencek, John M.Marshall Space Flight CenterEMULSIONS; MEMBRANES; SOLVENT EXTRACTION; PROPIONIC ACID; TWO PHASE FLOW; SURFACTANTS; LAGRANGIAN FUNCTION; MICROGRAVITY; SOLVENTS; COALESCING; FIBERS

Download or read book Handbook of Membrane Separations written by Anil K. Pabby and published by CRC Press. This book was released on 2008-07-07 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Membrane Separations: Chemical, Pharmaceutical, and Biotechnological Applications provides detailed information on membrane separation technologies as they have evolved over the past decades. To provide a basic understanding of membrane technology, this book documents the developments dealing with these technologies. It explores chemical, pharmaceutical, food processing and biotechnological applications of membrane processes ranging from selective separation to solvent and material recovery. This text also presents in-depth knowledge of membrane separation mechanisms, transport models, membrane permeability computations, membrane types and modules, as well as membrane reactors.

Download or read book Development of Alternative Green Sample Preparation Techniques written by Emanuela Gionfriddo and published by MDPI. This book was released on 2020-11-23 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue of Separations, “Development of Alternative Green Sample Preparation Techniques”, provides an overview on recent trends in green sample preparation. This Special Issue of Separations collates 11 impressive contributions that describe the state-of-the-art in the development of green extraction technologies, from green materials for microextraction to the development of new sampling devices geometries for enhanced extraction efficiency and analysis throughput.

Download or read book Emulsion Liquid Membrane Process for the Extraction of Metals Using Bi functional Surfactant written by Marimuthu Kathiresan and published by . This book was released on 1999 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Membranes written by Vladimir S Kislik and published by Elsevier. This book was released on 2009-08-31 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Membranes: Principles and Applications in Chemical Separations and Wastewater Treatment discusses the principles and applications of the liquid membrane (LM) separation processes in organic and inorganic chemistry, analytical chemistry, biochemistry, biomedical engineering, gas separation, and wastewater treatment. It presents updated, useful, and systematized information on new LM separation technologies, along with new developments in the field. It provides an overview of LMs and LM processes, and it examines the mechanisms and kinetics of carrier-facilitated transport through LMs. It also discusses active transport, driven by oxidation-reduction, catalytic, and bioconversion reactions on the LM interfaces; modifications of supported LMs; bulk aqueous hybrid LM processes with water-soluble carriers; emulsion LMs and their applications; and progress in LM science and engineering. This book will be of value to students and young researchers who are new to separation science and technology, as well as to scientists and engineers involved in the research and development of separation technologies, LM separations, and membrane reactors. Provides comprehensive knowledge-based information on the principles and applications of a variety of liquid membrane separation processes Contains a critical analysis of new technologies published in the last 15 years

Download or read book Membrane Systems in the Food Production written by Alfredo Cassano and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-07-19 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume work presents applications of integrated membrane operations in agro-food productions with significant focus on product quality, recovery of high added-value compounds, reduction of energy consumption and environmental impact. Volume 1. Dairy, Wine and Oil Processing. Volume 2. Wellness Ingredients and Juice Processing.

Download or read book Process and Chemical Engineering written by and published by . This book was released on 1998 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bleaching and Purifying Fats and Oils written by Gary R. List and published by Elsevier. This book was released on 2009-03-30 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the original publication of this book in 1992, the bleaching process has continued to attract the attention of researchers and the edible-oil industry. In this 2nd edition, the reader is directed to more modern techniques of analysis such as flame-atomic adsorption, graphite furnace atomic adsorption, and atomic emission spectrometry involving direct current plasma (DCP) and inductively coupled plasma (ICP). It also discusses the Freundlich Equation and reports on high-temperature water extraction, high- temperature oxidative aqueous regeneration, and extraction with supercritical CO2. Finally, various degumming methods improved over the past several decades are discussed Second edition features the progress in the bleaching and purifying of fats and oils since the mid-1990s Includes extensive details on the adsorptive purification of an oil prior to subsequent steps in the process, including refining and deodorization Offers practical considerations for choosing membranes, filtration equipment, and other key economic consideratons

Download or read book Surfactants in Chemical Process Engineering written by Darsh T. Wasan and published by Routledge. This book was released on 2017-10-19 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first reference to link chemical engineering technologies and surfactant science in suchbreadth of focus, Surfactants in Chemical/Process Engineering features contributionsby major authorities in chemical engineering whose applications have opened important newfields for surfactant use. These applications include dispersion science, separation processes, oilrecovery, microemulsions, and environmental control.This volume discusses ultrafiltration processes, flotation, metal extractions, and more ...examines surfactants in process streams for such industrial separations as micellar-enhancedultrafiltration, adsorbent regeneration, micellar extractions, and oiVwater demulsification . ..describes methodologies for separations of fatty acids, metals, minerals and impurities,solvents, and hydrocarbons for cost-saving industrial and consumer product manufacture . . .details techniques for developing and optimizing formulations for superior agricultural plantcontrol or enhancement systems, micro- and macroemulsions, and liquid surfactant membranes... and looks closely at emulsion polymers in soil stabilizations, protective coatings, sealants,adhesives, textile processing, paper finishing, specialty concretes, and tire manufacture.

Download or read book Proceedings of the First International Conference on Hydrometallurgy ICHM 88 written by Yulian Zheng and published by Pergamon. This book was released on 1989 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanoemulsions written by Seid Mahdi Jafari and published by Academic Press. This book was released on 2018-02-24 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoemulsions: Formulation, Applications, and Characterization provides detailed information on the production, application and characterization of food nanoemulsion as presented by experts who share a wealth of experience. Those involved in the nutraceutical, pharmaceutical and cosmetic industries will find this a useful reference as it addresses findings related to different preparation and formulation methods of nanoemulsions and their application in different fields and products. As the last decade has seen a major shift from conventional emulsification processes towards nanoemulsions that both increase the efficiency and stability of emulsions and improve targeted drug and nutraceutical delivery, this book is a timely resource. Summarizes general aspects of food nanoemulsions and their formulation Provides detailed information on the production, application, and characterization of food nanoemulsion Reveals the potential of nanoemulsions, as well as their novel applications in functional foods, nutraceutical products, delivery systems, and cosmetic formulations Explains preparation of nanoemulsions by both low- and high-energy methods

Download or read book Liquid Phase Extraction written by Colin F. Poole and published by Elsevier. This book was released on 2019-08-29 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Phase Extraction thoroughly presents both existing and new techniques in liquid phase extraction. It not only provides all information laboratory scientists need for choosing and utilizing suitable sample preparation procedures for any kind of sample, but also showcases the contemporary uses of sample preparation techniques in the most important industrial and academic project environments, including countercurrent chromatography, pressurized-liquid extraction, single-drop Microextraction, and more. Written by recognized experts in their respective fields, it serves as a one-stop reference for those who need to know which technique to choose for liquid phase extraction. Used in conjunction with a similar release, Solid Phase Extraction, it allows users to master this crucial aspect of sample preparation. Defines the current state-of-the-art in extraction techniques and the methods and procedures for implementing them in laboratory practice Includes extensive referencing that facilitates the identification of key information Aimed at both entry-level scientists and those who want to explore new techniques and methods

Download or read book Uranium Processing and Properties written by Jonathan S. Morrell and published by Springer Science & Business Media. This book was released on 2013-07-22 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uranium Processing and Properties describes developments in uranium science, engineering and processing and covers a broad spectrum of topics and applications in which these technologies are harnessed. This book offers the most up-to-date knowledge on emerging nuclear technologies and applications while also covering new and established practices for working with uranium supplies. The book also aims to provide insights into current research and processing technology developments in order to stimulate and motivate innovation among readers. Topics covered include casting technology, plate and sheet rolling, machining of uranium and uranium alloys, forming and fabrication techniques, corrosion kinetics, nondestructive evaluation and thermal modeling.

Download or read book Chemical Engineering Abstracts written by and published by . This book was released on 1989 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intensification of Liquid Liquid Processes written by Laurence R. Weatherley and published by Cambridge University Press. This book was released on 2020-04-16 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore and review novel techniques for intensifying transport and reaction in liquid-liquid and related systems with this essential toolkit. Topics include discussion of the principles of process intensification, the nexus between process intensification and sustainable engineering, and the fundamentals of liquid-liquid contacting, from an expert with over forty-five years' experience in the field. Providing promising directions for investment and for new research in process intensification, in addition to a unique review of the fundamentals of the topic, this book is the perfect guide for senior undergraduate students, graduate students, developers, and research staff in chemical engineering and biochemical engineering.

Download or read book Giant Vesicles written by Pier Luigi Luisi and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perspectives in Supramolecular Chemistry Founded by J.-M. Lehn Perspectives in Supramolecular Chemistry reflects research which develops supramolecular structures with specific new properties, such as recognition, transport and simulation of biosystems or new materials. The series covers all areas from theoretical and modelling aspects through organic and inorganic chemistry and biochemistry to materials, solid-state and polymer sciences reflecting the many and varied applications of supramolecular structures in modern chemistry. Giant Vesicles Edited by Pier Luigi Luisi and Peter Walde Institute für Polymere, ETH-Zürich, Switzerland Giant vesicles or giant liposomes are supramolecular assembles of amphiphiles, surface active substances which normally contain one or two hydrophobic chains and one hydrophilic head. Due to their relatively large size, giant vesicles are easily observed by light microscopy. This volume provides an overview of ideas and results obtained from experimental studies as well as theoretical approaches. A wide variety of aspects ranging from pure mathematics and physical considerations to biochemical and biological applications are covered. Historical and fundamental aspects are discussed as well as a range of experimental approaches including the micromanipulation and micro-puncturing of single giant vesicles. 87 international contributors comment on a wide range of issues contained under the five main part headings: Introduction Preparation Methods Basic Theoretical Aspects Physical Properties Chemical and Biological Aspects. Giant Vesicles has been written for researchers in the fields of chemistry, biochemistry and biophysics, working in supra-molecular chemistry, surfactant science, liposome and pharmaceutical sciences.

Download or read book The Structure Dynamics and Equilibrium Properties of Colloidal Systems written by D. Bloor and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute on Properties of Colloidal Systems, Aberystwyth, Wales, U.K., September 10-23, 1989