書誌事項
- タイトル別名
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- Galvanic Leaching of Cobalt-Rich Ferromanganese in the Presence of Pyrite
- オウテッコウ ト ノ ガルバニック ハンノウ ニ ヨル コバルト リッチ クラスト ノ シンシュツ ニ ツイテ
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説明
Cobalt-rich ferromanganese crusts (cobalt crust) contain strategic metals such as copper, nickel and cobalt. In order to recover cobalt, the reduction and dissolution of manganese oxide in crusts is required because cobalt is interlocked in manganese oxide. It is known that galvanic interactions between metal sulfide minerals and manganese nodule cause oxidation-reduction reactions on them. In this study, galvanic leaching of chemical analytical MnO2 and cobalt crust has been examined in the presence of pyrite.<BR>The measurement of rest potential indicated that MnO2 was nobler than pyrite. The dissolution of the MnO2 was accelerated in the presence of pyrite because MnO2 could act as cathode to be reduced in the galvanic couple MnO2/FeS2 .<BR>The dissolution of manganese and cobalt from the cobalt crust was enhanced in the presence of pyrite, and 84% of cobalt was extracted in three days while about 1% in the absence of pyrite in sulfuric acid solution of pH0.8. The leaching of the cobalt crust has been studied under various experimental parameters such as pH, amount of pyrite and particle size.
収録刊行物
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- 資源と素材
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資源と素材 126 (12), 679-683, 2010
一般社団法人 資源・素材学会
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詳細情報 詳細情報について
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- CRID
- 1390282680252823168
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- NII論文ID
- 10027449241
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- NII書誌ID
- AA12188381
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- COI
- 1:CAS:528:DC%2BC3MXitFelsbY%3D
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- ISSN
- 18840450
- 18816118
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- NDL書誌ID
- 10923898
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDLサーチ
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- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
