Download or read book Synthesis of Zeolite ZSM 5 and Faujasite and Geopolymer from South African Coal Fly Ash written by Nkululeko Zenzele Neville Ndlovu and published by . This book was released on 2016 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Zeolites from Coal Fly Ash written by Guido Gerard Hollman and published by . This book was released on 1999 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Process Design for the Up scale Zeolite Synthesis from South African Coal Fly Ash written by Pieter Wynand Du Plessis and published by . This book was released on 2014 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fly Ash Zeolites written by Bhagwanjee Jha and published by Springer. This book was released on 2016-05-27 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a thorough review of the state-of-knowledge and recent innovations in the synthesis of pure and improved grades of fly ash zeolites (FAZ). Addressing improvements to conventional methods, it also showcases a novel technique for the synthesis of high cation exchangers from fly ash and detailed characterization techniques for the products obtained. In addition, it examines in detail various areas of specific applications of fly ash zeolites. Over the years, several methods such as hydrothermal, fusion prior to hydrothermal, microwave assisted hydrothermal and molten salt techniques for producing FAZ have been developed. However, one-step and two-step reactions between the fly ash and alkali usually generate alkaline wastes that may cause environmental contamination. In addition, the separation of FAZ from the partially activated fly ash (the impurities) remains a major concern for researchers and industrialists alike. /divIn view of these challenges, this book presents a novel technique for three-step activation (TSA), which focuses on recycling the fly ash-NaOH-water reaction by-products until zeolitic residue is formed. The FAZ (the final residue after third step reactions) synthesized in this manner exhibits exceptionally high cation exchange capacity, specific surface area and pore area. This book offers a comprehensive compendium of reading material on fly ash and its recycled product, the zeolites. Students at both undergraduate and graduate levels, researchers, and practicing engineers will all find this book to be a valuable guide in their respective fields.
Download or read book Hydrothermal Conversion of South African Coal Fly Ash Into Pure Phase Zeolite Na P1 written by Mugera W. Gitari and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: South African coal combustion power utilities generate huge amounts of coal fly ash that can be beneficiated into zeolitic products. This chapter reports on the optimization of the presynthesis and synthesis conditions for a pure-phase zeolite Na-P1 from selected South African coal fly ashes. The hydrothermal treatment time, temperature, and molar quantities of water during the hydrothermal treatment step were successfully optimized. The optimum hydrothermal treatment time and temperature were 48 h and 140°C, respectively. Pure-phase zeolite Na-P1 was obtained with a molar regime of 1 SiO2:0.36 Al2O3:0.59 NaOH:0.49 H2O at an aging temperature of 47°C for 48 h. The optimized conditions were applied to two fly ashes from two coal-fired power utilities, and high-purity zeolite Na-P1 was obtained. The third coal fly ash with a different chemical composition gave a low-quality Na-P1 under the optimized conditions. The cation exchange capacity for the high-purity zeolite phase was 4.11 mEq/g, indicating that the adjustment of reactant composition and presynthesis or synthesis parameters leads to yields of high-quality zeolite Na-P1. The results also show that conversion of the coal fly ash into high-purity zeolite also depends on the chemical and mineralogical composition of the coal fly ash.
Download or read book Handbook of Zeolite Science and Technology written by Scott M. Auerbach and published by CRC Press. This book was released on 2003-07-31 with total page 1202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Zeolite Science and Technology offers effective analyses ofsalient cases selected expressly for their relevance to current and prospective research. Presenting the principal theoretical and experimental underpinnings of zeolites, this international effort is at once complete and forward-looking, combining fundamental
Download or read book Investigation of Some Scale up Conditions on the Synthesis of Faujasite Zeolites from South African Coal Fly Ash written by James Philip Brassell and published by . This book was released on 2017 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Zeolites from South Afrian Coal Fly Ash written by Dakalo Mainganye and published by . This book was released on 2012 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fly Ash written by Jacob Parker and published by Nova Science Publishers. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal fly ash (CFA) is one of the most complex anthropogenic materials. It is estimated that only about 20 to 30% of the globally generated fly ash is employed and utilised in building materials mainly as an additive in cement, concrete, and structural filling as well as in small scale production of zeolite. This book provides new research on the characteristics, uses and performance of fly ash.
Download or read book Synthesis of Zeolite from Coal Fly Ash and Its Ion Exchange Properties written by Chong Wee Gan and published by . This book was released on 2009 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Fly Ash Beneficiation written by Segun Akinyemi and published by BoD – Books on Demand. This book was released on 2018-01-31 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book deals with various, very significant topics of coal fly ash beneficiation, such as treatment of acid mine drainage with coal fly ash, toxic metal adsorption using coal fly ash, recovery of metals from coal fly ash and phytoreclamation of abandoned acid mine drainage site after treatment with coal fly ash, the status of research in coal fly ash utilization and applications and some other related topics in this growing and increasingly important research area. Overall, coal fly ash beneficiation has come to assume an important role in most areas of waste management research today. Continued growth and emphasis on scientific research is expected in all areas of waste management and conversion of waste to wealth technologies.
Download or read book Zeolite Synthesis written by Mario L. Occelli and published by . This book was released on 1989 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a complete progress report on the various aspects of zeolite synthesis on a molecular level. It provides many examples that illustrate how zeolites can be crystallized and what the important parameters are that control crystallization. Forty-two chapters cover such topics as: crystallization techniques; gel chemistry; crystal size and morphology; the role of organic compounds; and novel synthesis procedures. It offers a complete review of zeolite synthesis as well as the latest finding in this important field. Contains benchmark contributions from many notable pioneers in the field, including R.M. Barrer, H. Robson, and Robert Milton.
Download or read book Zeolites written by Claudia Belviso and published by BoD – Books on Demand. This book was released on 2016-08-24 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects recent results about research activities on zeolites, from synthesis to application. It is composed of two sections. The first is devoted to articles and brief review articles on the synthesis of zeolite from fly ash and final application of these newly formed minerals to solve environmental problems. The second part of the book provides useful information on different applications both of natural and synthetic zeolites ranging from environmental pollution to industrial and commercial applications. The performance of zeolite molecular sieves, hollow titanium zeolites and luminescent zeolites is interesting considering the new frontiers reached by the research on zeolites. This book is a useful instrument for researchers, teachers and students who are interested in investigating innovative aspects of the studies on zeolite.
Download or read book Preliminary Report on the Synthesis of Zeolites from Coal Fly Ash written by Katherine Lindsay Gifford Nash and published by . This book was released on with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Zeolite from Coal Fly Ash with Aluminum Dross Using Alkali Fusion written by Napasawan Khawnuan and published by . This book was released on 2011 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal fly ash (CFA) and aluminum dross are industrial wastes that required proper treatment and disposal. Several studies have been focusing on reusing CFA to produce zeolites; a porous crystalline materials with various applications. Nonetheless, the applicability of aluminum dross in zeolite synthesis has yet to be determined. In this study, CFA and aluminum dross were used for the synthesis of zeolite by akaline fusion. Aluminum oxide, a commonly used aluminum source, was also tested for comparison. Optimal condition of zeolite synthesis was determined based on characteristics of the products such as cation exchange capacity (CEC). Zeolite A was generated in this study. In the case of aluminum dross, optimal synthesis condition was obtained at 600 ̊C fusion temperature followed by crystallization at 80 ̊C. Although the observed CEC was relatively lower than those of the zeolites synthesized from aluminum oxide, their CEC values were still comparable. The cadmium and methylene blue (MB) adsorptions of the synthesized zeolites with high CEC values (P680, P780, D680, and D780) were then investigated. Among the three isotherm models including linear regression, Langmuir isotherm, and Freundlich isotherm, the data from cadmium adsorption by the synthesized zeolites fitted well with the Freundlich isotherm. On the contrary, MB adsorption could not be fitted with any models used in this study. These results suggest that zeolite A can be obtained from CFA and aluminum dross, and its capability in cadmium and MB removal was similar to the zeolite produced from aluminum oxide.
Download or read book Zeolite Synthesis from Pre treated Coal Fly Ash in Presence of Soil as a Tool for Soil Remediation written by Roberto Terzano and published by . This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrothermal Synthesis and Optimisation of Zoelite Na P1 from South African Coal Fly Ash written by Nicholas Mulei Musyoka and published by . This book was released on 2009 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
