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In the rougher flotation of molybdenite ore, high concentrate grade and recovery can be obtained by selecting the proper ratio of silica to soda and suitable concentration of sodium silicate to be added. Sodium silicate having the ratio of silica to soda 2 : 1 shows the most effective depressing action on gangue minerals. The minimum content of SiO_2 in the froth product is obtained when the conditioning time after adding sodium silicate is 10-20 minutes. It is preferable to use sodium hydroxide instead of lime to regulate the pH value of pulp containing much primary slime. On the contrary, lime is effective for the flotation of molybdenite ore containing no primary slime. Though it is usual to use oily collectors as collecting agents for molybdenite, quantities to be added to obtain good flotation results are unexpectedly large. In some cases molybdenite can be recovered with high recoveries by using xanthate with oily collector, but we should be cautious of using much xanthate. 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<報文>輝水鉛鉱の浮選に関する研究
http://hdl.handle.net/10097/32393
http://hdl.handle.net/10097/323931371f740-5879-4087-aeee-aa3d02f8082d
名前 / ファイル | ライセンス | アクション |
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KJ00000134390.pdf (969.7 kB)
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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>輝水鉛鉱の浮選に関する研究 | |||||
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 |
和田, 正美
× 和田, 正美× 真島, 宏× 武田, 亮輔× 竹下, 清逸× 広瀬, 恪二 |
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著者(ヨミ) | ||||||
姓名 | WADA, Masayoshi | |||||
著者(ヨミ) | ||||||
姓名 | MAJIMA, Hiroshi | |||||
著者(ヨミ) | ||||||
姓名 | TAKEDA, Ryosuke | |||||
著者(ヨミ) | ||||||
姓名 | TAKESHITA, Seiitsu | |||||
著者(ヨミ) | ||||||
姓名 | HIROSE, Kakuji | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Some points to be considered in the flotation of molybdenite containing clayey gangue were investigated, and based on the results obtained, the method of flotation operation was examined at the Daito mine, Shimane Prefecture. In the rougher flotation of molybdenite ore, high concentrate grade and recovery can be obtained by selecting the proper ratio of silica to soda and suitable concentration of sodium silicate to be added. Sodium silicate having the ratio of silica to soda 2 : 1 shows the most effective depressing action on gangue minerals. The minimum content of SiO_2 in the froth product is obtained when the conditioning time after adding sodium silicate is 10-20 minutes. It is preferable to use sodium hydroxide instead of lime to regulate the pH value of pulp containing much primary slime. On the contrary, lime is effective for the flotation of molybdenite ore containing no primary slime. Though it is usual to use oily collectors as collecting agents for molybdenite, quantities to be added to obtain good flotation results are unexpectedly large. In some cases molybdenite can be recovered with high recoveries by using xanthate with oily collector, but we should be cautious of using much xanthate. However, a good flotation result cannot be expected with xanthate only. At the Daito mine, the flotation results have been improved by modifications of flotation methods as follows : slime is treated by a separate flotation circuit and the froths are returned to the main circuit. Sodium hydroxide is used to regulate the pH value of the pulp. Thus, no difficulty has been experienced in producing a molybdenite concentrate assaying 86.3-87.4% MoS_2 with a recovery of 95.5-97.9% from a flotation feed assaying 1.06-1.13% MoS_2. | |||||
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 17, 号 2, p. 69-82, 発行日 1962-02-24 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0040876X | |||||
書誌レコードID | ||||||
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>Studies on the Flotation of Molybdenite | |||||
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 | 1962-02-24 | |||||
日付タイプ | Created | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | 969683 bytes | |||||
公開範囲 | ||||||
値 | 学外 | |||||
更新日 | ||||||
日付 | 2010-01-27 | |||||
日付タイプ | Created |