Applications Of Ion-exchange Resins Research Articles

Applications of ion exchange resins in environmental remediation

AbstractThe presence of various types of contaminants such as heavy metals, emerging organic contaminants, pesticides, organic waste, organic dyes, radionuclide's, fluorides, etc. cause water pollution. These pollutants are of concern to engineers, environmentalists and scientists. Due to the lack of freshwater, it is very important to recycle the wastewater after treatment to remove organic contaminates and heavy metal pollutants. Chemical precipitation, ion exchange, adsorption, filtration via membranes, flocculation, coagulation, flotation, and electrochemical techniques are just a few of the methods used to eliminate contaminants from wastewater. The most popular and effective among these is the ion exchange process. New generation hybrid materials, inorganic three‐dimensional matrices and synthetic organic resins are some examples of the different types of ion exchange resins. Most investigations have found that pseudo‐first and second order kinetic studies are important in the contaminant removal process. The isotherm model, which also incorporates the Langmuir, Freundlich, Dubinin Radushkevich, and Temkin equations, proved appropriate for most of the research. For an example, orgnic polymeric materials can maximum uptake capacity of 4.28 mmolg‐1 Cr(VI) and 1.97 mmolg‐1 As(V) respectively. The effectiveness of ion exchanger and its current trends in various environmental applications have been the main topics of this review article.

The Role of Ion Exchange Resins for Solving Biorefinery Catalytic Processes Challenges

Different possible applications of ion exchange resins in the framework of biorefinery catalytic applications are discussed in this article. Three case studies were selected for this approach, connected to three main routes for biomass upgrading: syngas upgrading to high-value chemicals, biomass hydrolysate upgrading, and direct upgrading of oily fraction. The tailored acidic properties of these materials, as well as their stability in the presence of water, have made them promising catalysts for applications such as obtaining biodiesel from activated sludge wastes in batch reactors and obtaining polyoxymethylene methyl ether from syngas (via formaldehyde and methylal, and working in a continuous fixed bed reactor). However, the acidity of these materials may still be too low for acid-catalyzed aldol condensation reactions in the aqueous phase.

Book Review: Applications of Ion Exchange Materials in Chemical and Food Industries

Abstract: A Book entitled Applications of Ion Exchange Materials in published by Chemical and Food Industries Edited by Inamuddin, Abdullah M. Asiri, and Tauseef Ahmad Rangreez, Springer, in 2019, (Print ISBN 978-3-030-06084-8, ISBN 978-3-030-06085-5, DOI: 10.1007/978-3-030-06085-5) This book provides an up-to-date, complete overview of various applications of ion exchange resins in the chemical and food industry. The chemistry of ion exchange resin materials towards its allied applications, including deionization, dealkalization, dehydration, hydrogenation, esterification, reactive separation, synthesis, separation, and purification of industrial products, were well addressed in this book, along with drawbacks and future scope to improve for better performance on the industrial scale. This book consists of nine chapters. Altogether, they discuss the applications of ion exchange resins in solid acid catalysis, reaction separation, removal, and recovery of metals in chemical reactions, and preparation of Ag-aggregated ion-exchanged silicates, specifically as it is not possible to discuss each and everything in detail. The chapters are presented effectively by reputed experts around the world. That makes this book an exceptionally significant and authentic source of information. It is valuable for a book to provide updated information, review the work done to date, do proper analysis, compare the pros and cons of comparable existing technologies, and guide the reader to research gaps and places where improvement is required. This book is an essential reference guide for students, researchers, engineers, professionals, and industrial research and development specialists in chemistry, chemical and biochemical technology, food chemistry, synthetic chemistry, and industrial chemistry. Results: This book consists of nine chapters. Altogether, they discuss the applications of ion exchange resins in solid acid catalysis, reaction separation, removal and recovery of metals in chemical reactions, and preparation of Ag-aggregated ion-exchanged silicates, specifically as it is not possible to discuss each and everything in detail. The chapters are presented effectively by reputed experts around the world. That makes this book an exceptionally significant and authentic source of information. It is valuable for a book to provide updated information, review the work done to date, do proper analysis, compare the pros and cons of comparable existing technologies, and guide the reader to research gaps and places where improvement is required. Conclusion: This book is an essential reference guide for students, researchers, engineers, professionals, and industrial research and development specialists in chemistry, chemical and biochemical technology, food chemistry, synthetic chemistry, and industrial chemistry.

Practical applications of ion exchange resins in agricultural and environmental soil research

The use of synthetic ion-exchange resins to examine ion bioavailability in soil and sediment systems has attracted much attention over the years. The first report in this regard was made 7-8 yr after resins were developed in the 1930s. So far, nearly 400 journal articles have been published related to use of resins in soil and environmental studies. The experience gained has led to more widespread applications in research as well as practical use in soil fertility assessment and fertilizer recommendations. Two commercial products developed in North America have directly resulted from years of research efforts. Recent developments in resin technology and availability warrant an updated review of the literature to aid in better understanding and utilizion of this technique. In this paper we provide an overview of historic and current developments in the use of ion exchange techniques in soil research. We also provide specific examples of successful use of batch and diffusion-sensitive ion exchange techniques in research and commercial use to assess ion availability. Finally, we address certain frequently asked questions about how the ion exchange resin technique is applied and how results are interpreted, including their advantages and limitations. Key Words: Ion exchange resin, agriculture, environment, soil research

ChemInform Abstract: RECENT DEVELOPMENTS OF POLYMERIC PHASE TRANSFER CATALYSTS

Recent developments of triphase catalysis are reviewed. First, applications of ion-exchange resins to organic synthesis as reagents and catalysts are described in connection with polymeric phase transfer catalysts. Subsequently, polymeric phase transfer catalysts are classified into three typical groups, namely, onium salts type, crown ethers and cryptands type, and cosolvents type. Their specific features in triphase catalysis are demonstrated. Activity-determining factors and mechanistic aspects of triphase catalysis are also discussed.

Industrial applications of ion exchange resins

Examines a variety of industrial applications of ion exchange resins beyond water treatment, including the deionization of aqueous solutions, ion interchange, separations and catalysis by ion exchange, and ion exchange in the finishing of metals and separating metals from their ores.

Treatment of edema with cation exchange resins, including certain hormonal observations.

Excerpt The use of ion exchange resins was suggested by Segal et al.2for control of gastric acidity and by Dock3for treatment of cardiac edema. The background and theory of ion exchange by resins i...

THE RELATIVE IMPORTANCE OF DIETARY SODIUM CHLORIDE AND WATER INTAKE IN CARDIAC EDEMA

Article1 October 1947THE RELATIVE IMPORTANCE OF DIETARY SODIUM CHLORIDE AND WATER INTAKE IN CARDIAC EDEMAL. W. GORHAM, M.D., D. E. LESTER, M.D., A. V. WOLF, Ph.D., H. H. SHULTZ, M.D.L. W. GORHAM, M.D.Search for more papers by this author, D. E. LESTER, M.D.Search for more papers by this author, A. V. WOLF, Ph.D.Search for more papers by this author, H. H. SHULTZ, M.D.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-27-4-575 SectionsAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail ExcerptThe restriction of sodium chloride intake has been recognized for many years as essential in the treatment of cardiac edema. A diminished renal excretion of sodium and water is the primary factor in the production of edema according to Warren and Stead,1rather than increased venous pressure. Karrell's2once popular regimen of 800 c.c. of milk with no other food or fluid contained approximately 1.0 gm. of sodium chloride. In many hospitals at the present time, the "cardiac general" diet restricts the sodium chloride intake to a minimum of 3.0 gm. and customarily fluids are limited to 1500 c.c. daily....Bibliography1. WARRENSTEAD JVEA: Fluid dynamics in chronic congestive heart failure, Arch. Int. Med., 1944, lxxiii, 138-147. CrossrefGoogle Scholar2. KARRELL P: De la cure de lait, Arch. gen. de med., 1866, Vol. 128, O. S., Series 6, Vol. 8, 513-533. Google Scholar3. SCHROEDER HA: Studies on congestive heart failure. I. The importance of restriction of salt as compared to water, Am. Heart Jr., 1941, xxii, 141-153. CrossrefGoogle Scholar4. SCHEMM FR: A high fluid intake in the management of edema, especially cardiac edema. I. The details and basis of the regime, Ann. Int. Med., 1942, xvii, 952-969. LinkGoogle Scholar5. SCHEMM FR: A high fluid intake in the management of edema, especially cardiac edema. II. Clinical observations and data, Ann. Int. Med., 1944, xxi, 937-976. Google Scholar6. BRIDGESWHEELERWHITE WCEOPD: Low-sodium diet and free fluid intake in the treatment of congestive heart failure, New Eng. Jr. Med., 1946, ccxxxiv, 573-578. CrossrefGoogle Scholar7. WHEELERBRIDGESWHITE EOWCPD: Diet low in salt (sodium) in congestive heart failure, Jr. Am. Med. Assoc., 1947, cxxxiii, 16-20. CrossrefGoogle Scholar8. LEEVYSTRAZZAJAFFIN CMJAAE: Fluids in congestive heart failure, Jr. Am. Med. Assoc., 1946, cxxxi, 1120-1125. CrossrefGoogle Scholar9. FREYBERGGRANT RHRL: Loss of minerals through the skin of normal humans when sweating is avoided, Jr. Clin. Invest., 1937, xvi, 729. CrossrefGoogle Scholar10. KEUTMANNBASSETTWARREN EHSHSL: Electrolyte balances during artificial fever with special reference to loss through the skin, Jr. Clin. Invest., 1939, xviii, 239. CrossrefGoogle Scholar11. MACKAYBUTLER EMAM: Studies of sodium and potassium metabolism. The effect of potassium on the sodium and water balances in normal subjects and patients with Bright's disease, Jr. Clin. Invest., 1935, xiv, 923. CrossrefGoogle Scholar12. FUTCHERSCHROEDER PHHA: Studies on congestive heart failure. II. Impaired renal excretion of sodium chloride, Am. Jr. Med. Sci., 1942, cciv, 52. CrossrefGoogle Scholar13. WOLF AV: The dehydrating effect of continuously administered water, Am. Jr. Physiol., 1945, cxliii, 567. CrossrefGoogle Scholar14. WOLF AV: The retention and excretion of continuously administered salt solutions, ibid., cxliii, 572. Google Scholar15. WOLF AV: Renal regulation of water and some electrolytes in man, with special reference to their relative retention and excretion, ibid., cxlviii, 54. Google Scholar This content is PDF only. To continue reading please click on the PDF icon. Author, Article, and Disclosure InformationAffiliations: Albany, New York*Presented in abstract form at the Atlantic City meeting of the Association of American Physicians May 7, 1947.From the Departments of Medicine and Physiology, Albany Medical College, Union University, Albany, N. Y.This study was aided by a grant from the Winthrop Chemical Co., Rensselaer, N. Y.*The use of salt-free bread is essential; two analyses of ordinary bread showed 4.9 m.eq. of sodium per slice. Neo-curtesal (Winthrop Chemical Co.) has in some cases been helpful as a salt substitute after patients left the hospital. This product contains no sodium. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics Cited byHerzinsuffizienzOn the neglected role of water and potassium in cardiovascular therapyTherapie der HerzinsuffizienzBody fluid alterations during the development of and recovery from hyponatremia in heart failureElectrolyte and Fluid Disturbances in Congestive Heart FailurePresent Day Treatment of Congestive Heart FailureSome Applications of Ion exchange Resins to Medical Problems†Congestive heart failure of renal originWater Balance in Heart and Kidney Disease as Related to Edema and OliguriaDietary Management in Heart Disease with Particular Reference to Congestive Cardiac FailureLow salt diets and arterial hypertension 1 October 1947Volume 27, Issue 4Page: 575-583KeywordsBreadChemical analysisDietEdemaExcretionFoodMilkSaltsSodiumSodium chloride Issue Published: 1 October 1947 PDF downloadLoading ...