| 贫菱锰矿合成碱锰电池级化学二氧化锰研究 |
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| 引用本文： | 沈慧庭,包玺琳,黎永杰,覃华,黄晓毅.贫菱锰矿合成碱锰电池级化学二氧化锰研究[J].矿冶工程,2009,29(4). |
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| 作者姓名： | 沈慧庭 包玺琳 黎永杰 覃华 黄晓毅 |
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| 作者单位： | 1. 广西大学,资源与冶金学院,广西,南宁,530004
2. 中信大锰矿业有限责任公司,大新分公司,广西,大新,532315 |
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| 摘 要： | 以贫菱锰矿为原料合成碱锰电池用化学二氧化锰(CMD),系统研究了合成过程中各工艺因素对二氧化锰产品性能的影响.结果表明,CMD的视密度受中间产品MnCO3视密度影响较大,控制碳化结晶条件可以获得视密度达2.10 g/cm3的重质MnCO3;CMD的电活性主要与晶型有关,在350～400 ℃下热分解重质MnCO3所得γ型MnO2电活性最佳;通过热解产品精制可以提高CMD的MnO2含量,同时改善CMD颗粒形貌,获得了MnO2含量达91%,视密度为1.90 g/cm3,电容量为249.43 mAh的CMD最终产品.
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| 关 键 词： | 电池 化学二氧化锰 菱锰矿 热解 晶型 视密度 |
Research on Preparation of Chemical Manganese Dioxide for Alkaline Zn-Mn Battery from a Low-grade Manganese Carbonate Ore |
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| SHEN Hui-ting,BAO Xi-lin,LI Yong-jie,QIN Hua,HUANG Xiao-yi.Research on Preparation of Chemical Manganese Dioxide for Alkaline Zn-Mn Battery from a Low-grade Manganese Carbonate Ore[J].Mining and Metallurgical Engineering,2009,29(4). |
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| Authors: | SHEN Hui-ting BAO Xi-lin LI Yong-jie QIN Hua HUANG Xiao-yi |
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| Affiliation: | 1.College of Resources and Metallurgy;Guangxi University;Nanning 530004;Guangxi;China;2.Daxin Branch;CITIC Dameng Mining Industries Limited;Daxin 532315;China |
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| Abstract: | Low-grade manganese carbonate ore was used as raw material to produce chemical manganese dioxide(CMD) for alkaline Zn-Mn battery.The effects of various factors in the process on CMD performance were investigated.The results show that CMD apparent density is significantly affected by that of the intermediate product MnCO 3.Heavy MnCO 3 with apparent density 2.10 g/cm 3 can be obtained through controlling the carbonizing crystallization conditions.CMD electroactive is mainly related to its crystal phase.The e... |
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| Keywords: | battery chemical manganese dioxide manganese carbonate ore pyrolysis crystal phase apparent density |
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