| 拜耳法生产氧化铝锌杂质的脱除研究现状 |
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| 引用本文： | 李俊福,史英杰,李荣兴,俞小花,张涛,谢刚,乔举旗.拜耳法生产氧化铝锌杂质的脱除研究现状[J].矿冶,2017,26(2):59-63. |
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| 作者姓名： | 李俊福 史英杰 李荣兴 俞小花 张涛 谢刚 乔举旗 |
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| 作者单位： | 云南文山铝业公司,昆明理工大学 冶金与能源工程学院,昆明理工大学 冶金与能源工程学院,昆明理工大学 冶金与能源工程学院,昆明理工大学 冶金与能源工程学院,共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南文山铝业有限公司 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 铝土矿中的锌杂质会直接影响氧化铝产品的纯度,影响氧化铝的生产指标。由于氢氧化锌为两性物质,所以锌在拜耳法生产系统中主要以ZnO_2~(2-)的形式存在,再加上锌与铝在苛性溶液中有着较为相似的化学行为,这就使得在拜耳液中脱锌极其困难。目前,国内外主要采用添加硫化物的方法除锌,尤其是在配矿时添加高硫铝土矿除锌,这种方法已经成为拜耳法除锌的很好选择。
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| 关 键 词： | 氧化铝 硫化物 脱锌 高硫铝土矿 |
| 收稿时间： | 2016/10/25 0:00:00 |
| 修稿时间： | 2016/10/27 0:00:00 |
The status of removal zinc in Bayer process of alumina production |
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| Li Junfu,Shi Yingjie,Li Rongxing,YU Xiaohu,Zhang Tao,Xie Gang and Qiao Juqi.The status of removal zinc in Bayer process of alumina production[J].Mining & Metallurgy,2017,26(2):59-63. |
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| Authors: | Li Junfu Shi Yingjie Li Rongxing YU Xiaohu Zhang Tao Xie Gang and Qiao Juqi |
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| Affiliation: | Yunnan Wenshan Aluminum Industry Co. Ltd.,Kunming University of Science and Technology,Faculty of metallurgy and energy engineering, Kunming University of Science and Technology,Kunming University of Science and Technology,Kunming University of Science and Technology,State key laboratory of Common associated non-ferrous metal resources pressure hydrometallurgy technology,Yunnan Wenshan Aluminum Industry Co. Ltd. |
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| Abstract: | zinc impurities in bauxite will directly affect the product purity and production targets of alumina. Zinc impurities mainly exist in the form ZnO22- in Bayer production system. The zinc hydroxide amphoteric substances. Therefore, zinc in the Bayer process production system mainly in the form of ZnO22-deposit, coupled with zinc and aluminum in the caustic liquid have very similar chemical behavior, this is the zinc removal in Bayer liquor is extremely difficult. The main method of removal zinc of domestic and foreign is add sulfide especially adding high sulfur bauxite ore to removal zinc and this approach has become a good way to removal of zinc in Bayer. |
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| Keywords: | alumina sulfide zinc removal high sulfur bauxite |
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