Synthesis of zeolitic materials from natural clinker: A new alternative for recycling coal combustion by-products.

2.50
Hdl Handle:
http://hdl.handle.net/2436/48193
Title:
Synthesis of zeolitic materials from natural clinker: A new alternative for recycling coal combustion by-products.
Authors:
Rios, Carlos A.; Williams, Craig D.
Abstract:
In this study, we report an innovative process of zeolite synthesis through transforming of natural raw clinker (NRC) via (1) conventional hydrothermal alkaline activation and (2) alkaline fusion prior to hydrothermal reaction. Both methods were evaluated at 100 °C as a function of the alkaline agent, although in the first method other variables such as concentration of the activation solution and reaction time were selected, whereas in the second method similar ratios of alkaline activator/NRC and H2O/alkali fused product during different reaction times were used. Experimental results indicate that the method, alkali activator, concentration and time have a strong effect on the type and degree of crystallinity of the synthesized zeolite. Low-silica sodium or potassium zeolitic materials were synthesized, which include Na-phillipsite, hydroxysodalite and hydroxycancrinite, K-chabazite, zeolite K-F, faujasite and zeolite Linde Type A. The use of a recycling process of NRC in zeolite synthesis could become an area of important interest and research, playing an active role in encouraging and promoting technological advances, research and technology transfer related to the use and disposal of mining wastes, remaining after the natural and spontaneous combustion of coal seams. NRC-based zeolites (NRCZs) synthesized under well-optimized experimental conditions could be used in applications for environmental waste treatment.
Citation:
Fuel, 87(12): 2482-2492.
Publisher:
Amsterdam: Elsevier
Journal:
Fuel
Issue Date:
2008
URI:
http://hdl.handle.net/2436/48193
DOI:
10.1016/j.fuel.2008.03.014
Additional Links:
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3B-4S8TKVS-1&_user=1644469&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000054077&_version=1&_urlVersion=0&_userid=1644469&md5=6925508928db97c091b52c7fe637b88dAbstract
Type:
Article
Language:
en
ISSN:
00162361
Appears in Collections:
Plant and Environmental Research Group

Full metadata record

DC FieldValue Language
dc.contributor.authorRios, Carlos A.-
dc.contributor.authorWilliams, Craig D.-
dc.date.accessioned2009-01-28T19:40:44Z-
dc.date.available2009-01-28T19:40:44Z-
dc.date.issued2008-
dc.identifier.citationFuel, 87(12): 2482-2492.en
dc.identifier.issn00162361-
dc.identifier.doi10.1016/j.fuel.2008.03.014-
dc.identifier.urihttp://hdl.handle.net/2436/48193-
dc.description.abstractIn this study, we report an innovative process of zeolite synthesis through transforming of natural raw clinker (NRC) via (1) conventional hydrothermal alkaline activation and (2) alkaline fusion prior to hydrothermal reaction. Both methods were evaluated at 100 °C as a function of the alkaline agent, although in the first method other variables such as concentration of the activation solution and reaction time were selected, whereas in the second method similar ratios of alkaline activator/NRC and H2O/alkali fused product during different reaction times were used. Experimental results indicate that the method, alkali activator, concentration and time have a strong effect on the type and degree of crystallinity of the synthesized zeolite. Low-silica sodium or potassium zeolitic materials were synthesized, which include Na-phillipsite, hydroxysodalite and hydroxycancrinite, K-chabazite, zeolite K-F, faujasite and zeolite Linde Type A. The use of a recycling process of NRC in zeolite synthesis could become an area of important interest and research, playing an active role in encouraging and promoting technological advances, research and technology transfer related to the use and disposal of mining wastes, remaining after the natural and spontaneous combustion of coal seams. NRC-based zeolites (NRCZs) synthesized under well-optimized experimental conditions could be used in applications for environmental waste treatment.en
dc.language.isoenen
dc.publisherAmsterdam: Elsevieren
dc.relation.urlhttp://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3B-4S8TKVS-1&_user=1644469&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000054077&_version=1&_urlVersion=0&_userid=1644469&md5=6925508928db97c091b52c7fe637b88dAbstracten
dc.subjectRecycling of materialsen
dc.subjectCoal combustionen
dc.subjectNatural clinkeren
dc.subjectClinkeren
dc.subjectSynthesisen
dc.subjectZeolitesen
dc.subjectMining industryen
dc.titleSynthesis of zeolitic materials from natural clinker: A new alternative for recycling coal combustion by-products.en
dc.typeArticleen
dc.identifier.journalFuelen
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