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<報文>鉄シリケートスラグによるクロムの固定に関する基礎的研究(II) : 溶融固定に及ぼす加熱時の雰囲気と石灰の影響
http://hdl.handle.net/10097/32752
http://hdl.handle.net/10097/3275256efb46c-394a-4146-9d60-3f6e83ca2160
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 2008-05-02 | |||||||||
タイトル | ||||||||||
タイトル | <報文>鉄シリケートスラグによるクロムの固定に関する基礎的研究(II) : 溶融固定に及ぼす加熱時の雰囲気と石灰の影響 | |||||||||
言語 | ||||||||||
言語 | jpn | |||||||||
資源タイプ | ||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
資源タイプ | departmental bulletin paper | |||||||||
著者 |
江口, 元徳
× 江口, 元徳
× 内田, 隆治
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著者(ヨミ) | ||||||||||
識別子Scheme | WEKO | |||||||||
識別子 | 123769 | |||||||||
姓名 | EGUCHI, Motonori | |||||||||
著者(ヨミ) | ||||||||||
識別子Scheme | WEKO | |||||||||
識別子 | 123770 | |||||||||
姓名 | UCHIDA, Ryuji | |||||||||
抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | The possibility of fixing chromium with an iron oxide-lime-silica melt has been investigated at various oxygen potentials by the method of heating and quenching followed by leaching in water. The results are summarized as follows : (1) Chromium was fixed by an FeO-Cr_2O_3-SiO_2 melt coexisting with metallic iron at 1300℃. Replacing FeO with Fe_2O_3 in the starting sample load did not affect the fixing behaviour.(2) In the presence of metallic iron, one homogeneous liquid region in the FeO-Cr_2O_3-SiO_2-20%CaO system was determined at 1300℃ as shown in Fig.3. In addition, the existence of a second liquid zone was detected near the FeO apex. Chromium was fixed in all the areas studied, but the pH value in the leached solution increased in the region of high FeO.(3) The melting behavior of various FeO (or Fe_2O_3)-CaO-Cr_2O_3-SiO_2 compositions under a 1.8%O_2-98.2% N_2 gas mixture or air was studied at 1300℃. The highest solubility of Cr (10%Cr_2O_3) was obtained when the FeO-CaO-Cr_2O_3-SiO_2 mixture was heated in an air atmosphere. This value was decreased to a few % when the FeO was replaced by Fe_2O_3. In all cases, chronaium could be fixed in the melt.(4) Heating experiments at temperatures from 600 to 1300℃ were carried out using air, a 1.8%O_2-89.2% N_2 gas mixture or CO_2. Most of the products were powder. The amounts of chromium dissolved in water increased with (a) decreasing temperature, (b) increasing lime content and (c) increasing oxygen pressure. The results suggest that the utilization of iron oxide-lime-silica melts to fix the chromium in solid waste materials should be further developed. | |||||||||
書誌情報 |
東北大學選鑛製錬研究所彙報 = Bulletin of the Research Institute of Mineral Dressing and Metallurgy, Tohoku University 巻 34, 号 1, p. 35-44, 発行日 1978-09-16 |
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収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 0040876X | |||||||||
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収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AN00168425 | |||||||||
フォーマット | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | application/pdf | |||||||||
著者版フラグ | ||||||||||
出版タイプ | VoR | |||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
その他の言語のタイトル | ||||||||||
その他のタイトル | <Original Papers>Study of the Fixing of Chromium with Iron-Silicate Slag (II) : Effects of Oxygen Potential and Lime on the Fixing with Melting Treatment | |||||||||
出版者 | ||||||||||
出版者 | 東北大學選鉱製錬研究所 | |||||||||
資源タイプ | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 紀要類(bulletin) | |||||||||
登録日 | ||||||||||
日付 | 2008-05-02 | |||||||||
日付タイプ | Created | |||||||||
公開日(投稿完了日) | ||||||||||
日付 | 2008-05-02 | |||||||||
日付タイプ | Created | |||||||||
発行日 | ||||||||||
日付 | 1978-09-16 | |||||||||
日付タイプ | Created | |||||||||
フォーマット | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 868803 bytes | |||||||||
更新日 | ||||||||||
日付 | 2010-01-27 | |||||||||
日付タイプ | Created |