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ID 46902
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Author
Kuroda, Yutaro
Abstract
A chemical recycling method by using phase separation was applied to municipal waste slags. Glasses were prepared from incineration ash and ash-melted slag, where B(2)O(3) was added to promote phase separation. The glasses were heat-treated at temperatures higher than their glass transition temperatures, and they were soaked in hydrochloric acid, leaching CaO, Fe(2)O(3), K(2)O, and S. Transparent and colorless solids containing ca. 80 mass% of SiO(2) were successfully obtained as residues. It was suggested that phase separation took place not in the heat-treatment but in the vitrification process, and further characterizations are however required to investigate the phenomena at microscopic levels in the recycling processes.
Keywords
Municipal waste slag
Waste recycling
Chemical recycling
Glass
Published Date
2009-11
Publication Title
Journal of the Ceramic Society of Japan
Volume
volume117
Issue
issue1371
Publisher
The Ceramic Society of Japan
Publisher Alternative
公益社団法人日本セラミックス協会
Start Page
1195
End Page
1198
ISSN
1882-0743
NCID
AA12229489
Content Type
Journal Article
language
英語
Copyright Holders
©2009 The Ceramic Society of Japan. All rights reserved.
File Version
publisher
Refereed
True
DOI