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還原熔煉法從謙比希銅冶煉廠轉(zhuǎn)爐渣中回收鈷
摘要:研究從贊比亞謙比希銅冶煉廠轉(zhuǎn)爐渣中回收鈷的還原熔煉過程.實驗考察還原劑用量、熔煉溫度、保溫時間及渣型改善劑CaO和TiO2的添加對還原熔煉金屬回收率的影響.采用X射線衍射、掃描電子顯微鏡及能譜分析對所得貧化渣和含鈷合金進行表征.結(jié)果表明,在優(yōu)化條件下,轉(zhuǎn)爐渣中鈷、銅、鐵的回收率分別為94.02%,95.76%和小于18%;貧化渣的主要物相組成為鐵橄欖石和鐵尖晶石,含鈷合金中主要含有金屬銅、含鈷銅的鐵合金和少量的硫化物.Abstract:The reduction smelting process for cobalt recovery from converter slag of the Chambishi Copper Smelter in Zambia was studied.The effects of reducing agent dosage,smelting temperature and time and the addition of slag modifiers(CaO and TiO2)were investigated.In addition,the depleted slag and cobalt-beating alloy were characterized by X-ray diffraction,scanning electron microscopy and energy dispersive spectroscopy.Under the determined conditions,94.02% Co,95.76% Cu and less than 18% Fe in the converter slag were recovered.It was found that the main phases of depleted slag were fayalite and hercynite; and the cobalt-bearing alloy mainly contained metallic copper,Fe-Co-Cu alloys and a small amount of sulfide. 作者: 翟秀靜[1] 李乃軍[2] 張旭[1] 符巖[1] 姜瀾[1] Author: ZHAI Xiu-jing[1] LI Nai-jun[2] ZHANG Xu[1] FU Yan[1] JIANG Lan[1] 作者單位: 東北大學(xué)材料與冶金學(xué)院,沈陽,110819沈陽大學(xué)理學(xué)院,沈陽,110044 期 刊: 中國有色金屬學(xué)報(英文版) ISTICEISCI Journal: Transactions of Nonferrous Metals Society of China 年,卷(期): 2011, 21(9) 分類號: X756 TF816 關(guān)鍵詞: 轉(zhuǎn)爐渣 回收鈷 還原熔煉 渣型改善劑 含鈷合金 Keywords: converter slag cobalt recovery reduction smelting slag modifier cobalt-bearing alloy 機標分類號: TF8 X75 機標關(guān)鍵詞: 還原熔煉 熔煉法 銅冶煉廠 轉(zhuǎn)爐渣 回收鈷 converter slag electron microscopy energy dispersive 含鈷合金 addition 掃描電子顯微鏡 reducing agent 金屬回收率 phases of 優(yōu)化條件 物相組成 鐵尖晶石 鐵橄欖石 射線衍射 熔煉溫度 基金項目: the National Key Technology R&D Program of China 還原熔煉法從謙比希銅冶煉廠轉(zhuǎn)爐渣中回收鈷[期刊論文] 中國有色金屬學(xué)報(英文版) --2011, 21(9)翟秀靜 李乃軍 張旭 符巖 姜瀾研究從贊比亞謙比希銅冶煉廠轉(zhuǎn)爐渣中回收鈷的還原熔煉過程.實驗考察還原劑用量、熔煉溫度、保溫時間及渣型改善劑CaO和TiO2的添加對還原熔煉金屬回收率的影響.采用X射線衍射、掃描電子顯微鏡及能譜分析對所得貧化渣和含鈷...【還原熔煉法從謙比希銅冶煉廠轉(zhuǎn)爐渣中回收鈷】相關(guān)文章:
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