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ID 48218
フルテキストURL
タイトル(別表記)
Material recycling of inorganic slag by wet ball milling
著者
崎田 真一 岡山大学環境管理センター
紅野 安彦 岡山大学環境理工学部環境物質工学科
難波 徳郎 岡山大学環境理工学部環境物質工学科
抄録
The possibility of material recycling of inorganic slag by wet ball milling with distilled water and an ethylenediaminetetraacetic acid disodium salt dehydrate (EDTA·2Na·2H2O) reagent was investigated. The wet ball milling of the simulated waste slag powder was performed using a ball mill pot and balls in air for 10 - 100 h at room temperature with the rotational speed fixed at 200 rpm. The fractions of CaO and Fe2O3 in the specimens obtained by wet-ball-milling the simulated waste slag powder decreased, that of SiO2 increased, and those of Al2O3 and Na2O hardly changed. These specimens contained 0.1 – 0.8mass% ZrO2. Appropriate solution and time for wet ball milling were 300 ml distilled water and 20 h, respectively. When the wet ball milling of the simulated waste slag powder was performed twice, the fractions of CaO, Al2O3 and Fe2O3 in the specimen obtained after repeated wet ball milling decreased, those of SiO2 and ZrO2 increased and that of Na2O hardly changed in comparison with those in the specimen wet-ball-milled once. The insoluble end product obtained by soaking the specimen wet-ball-milled once in 6M HCl for 20 hours was composed of 98.5mass% SiO2 and 0.6mass% or less other oxides and is usable as glass material.
キーワード
Inorganic slag
EDTA
Wet ball milling
Recycling
発行日
2012-02
出版物タイトル
環境制御
出版物タイトル(別表記)
Environmental Research & Control
33巻
出版者
岡山大学環境管理センター
出版者(別表記)
Environmental Management Center, Okayama University
開始ページ
6
終了ページ
12
ISSN
0917-1533
NCID
AN1024789X
資料タイプ
紀要論文
言語
Japanese
論文のバージョン
publisher
査読
有り
Eprints Journal Name
erc