Conventional and microwave hydrothermal synthesis of zeolite ZSM-5 from the cupola slag

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Author list: Rewadee Anuwattana, Kenneth J. Balkus Jr., Suwimol Asavapisit, Pojanie Khummongkol

Publisher: Elsevier

Publication year: 2008

Journal: Microporous and Mesoporous Materials (1387-1811)

Volume number: 111

Issue number: 1-3

Start page: 260

End page: 266

Number of pages: 7

ISSN: 1387-1811

URL: https://www.scopus.com/record/display.uri?eid=2-s2.0-41649114758&origin=resultslist&sort=plf-f&src=s&st1=Conventional+and+microwave+hydrothermal+synthesis+of+zeolite&sid=19fae75f0e0a710afff86964f12ac4bc&sot=b&sdt=b&sl=75&s=TITLE-ABS-KEY%28Conventional+and+microwave+hydrothermal+synthesis+of+zeolite%29&relpos=69&citeCnt=48&searchTerm=&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1

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Abstract

ZSM-5 type zeolites have been prepared from cupola slag waste using both conventional hydrothermal and microwave syntheses at 130–200 C. The ZSM-5 was synthesized by conventional heating by taking advantage of the high silica content of cupola slags. Microwave heating increased the rate of ZSM-5 formation by 4 times at 150 C compared with conventional heating. The Si/Al ratio of the ZSM-5 produced by the conventional heating and the microwave crystallization were similar 28 and 29, respectively. The conventionalheating produced ZSM-5 particles 3 lm in diameter, while, microwave-heating produced smaller ZSM-5 particles only 0.3 lm in size.

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