| 碱焙烧法由氧化锌矿提取ZnO |
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| 引用本文： | 陈兵,申晓毅,顾惠敏,孙毅,李德官,翟玉春,马培华. 碱焙烧法由氧化锌矿提取ZnO[J]. 化工学报, 2012, 63(2): 658-661. DOI: 10.3969/j.issn.0438-1157.2012.02.046 |
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| 作者姓名： | 陈兵 申晓毅 顾惠敏 孙毅 李德官 翟玉春 马培华 |
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| 作者单位： | 1东北大学材料与冶金学院，辽宁 沈阳 110819；2盘锦市环境科学研究院科技研究室，辽宁 盘锦 124010；3中国科学院青海盐湖研究所，青海 西宁8100085. 东北大学冶金与材料学院 |
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| 基金项目： | 国家重点基础研究发展计划项目 |
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| 摘 要： | 采用氢氧化钠焙烧法处理氧化锌矿，可使矿物中的ZnO、SiO2和PbO发生反应溶于水得到混合溶液。本文采用正交实验优化了碱焙烧氧化锌矿提取氧化锌的的工艺条件，得到优化的工艺条件为矿碱质量比1:6、焙烧温度400℃、保温时间4h，在优化工艺条件下ZnO的提取率达到82.4%。提锌渣主要成分为超石英和Na2ZnSiO4等，Na2ZnSiO4的存在影响了ZnO的提取率进一步提高。提锌渣形貌不规则，颗粒大小不均。
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| 关 键 词： | 氧化锌矿 氢氧化钠焙烧 提氧化锌 |
| 收稿时间： | 2011-04-24 |
| 修稿时间： | 2011-11-10 |
Extraction of ZnO from zinc oxide ore by alkali roasting method |
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| CHEN Bing , SHEN Xiaoyi , GU Huimin , SUN Yi , LI Deguan , ZHAI Yuchun , MA Peihua. Extraction of ZnO from zinc oxide ore by alkali roasting method[J]. Journal of Chemical Industry and Engineering(China), 2012, 63(2): 658-661. DOI: 10.3969/j.issn.0438-1157.2012.02.046 |
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| Authors: | CHEN Bing SHEN Xiaoyi GU Huimin SUN Yi LI Deguan ZHAI Yuchun MA Peihua |
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| Affiliation: | 1School ofMaterials and Metallurgy, NortheasternUniversity, Shenyang 110819, Liaoning, China；2Science and Technology Laboratory, Panjin Academyof Environmental Sciences，Panjin 124010, Liaoning, China;3 Qinghai Instituteof Salt Lakes, Chinese Academyof Sciences, Xining 810008, Qinghai, China |
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| Abstract: | Zinc oxide ore was treated by roasting with NaOH.ZnO,SiO2 and PbO reacted with alkali first and then went into solution after digestion.In this paper,orthogonal experiment method was used to optimize conditions for extraction of ZnO from zinc oxide ore by roasting with alkali.The optimized conditions were mass ratio of ore and alkali 1∶6,holding temperature 400℃,holding time 4 h.Under these conditions,the extraction rate of ZnO was 82.4%.The main components of zinc extracted slag were stishovite,and Na2ZnSiO4,whose presence impeded further extraction of ZnO.The morphology of slag was irregular,and the particle size was non-uniform. |
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| Keywords: | zinc oxide ore NaOH roasting ZnO extraction |
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