| 氯化钡废液联产氢氧化钙和氯化钡 |
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| 引用本文： | 雷永林,霍冀川,王海滨,杨定明,刘树信.氯化钡废液联产氢氧化钙和氯化钡[J].化工环保,2006,26(3):231-234. |
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| 作者姓名： | 雷永林 霍冀川 王海滨 杨定明 刘树信 |
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| 作者单位： | 西南科技大学,材料科学与工程学院,四川,绵阳,621010 |
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| 基金项目： | 四川省重点攻关资助项目（03GG021-002）. |
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| 摘 要： | 讨论了氯化钡废液联产氢氧化钙及高纯氯化钡的方法和主要影响因素。通过复盐共沉淀、热滤、结晶、精制纯化等工序，用氯化钡的蒸发残液制得了工业级的氢氧化钙和高纯度氯化钡，其纯度分别达95％和99．92％以上。采用有机溶剂析出法精制氯化钡，无需重结晶工序，是对传统工艺的一种改进。
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| 关 键 词： | 氯化钡 废液 沉淀 结晶 精制 氢氧化钙 |
| 文章编号： | 1006-1878（2006）03-0231-04 |
| 收稿时间： | 2005-11-06 |
| 修稿时间： | 2006-01-26 |
Co-production of Calcium Hydroxide and Barium Chloride from Barium Chloride Waste Liquor |
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| Lei Yonglin,Huo Jichuan,Wang Haibin,Yang Dingming,Liu Shuxin.Co-production of Calcium Hydroxide and Barium Chloride from Barium Chloride Waste Liquor[J].Environmental Protection of Chemical Industry,2006,26(3):231-234. |
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| Authors: | Lei Yonglin Huo Jichuan Wang Haibin Yang Dingming Liu Shuxin |
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| Institution: | College of Material Science and Engineering,Southwest University of Science and Technology, Mianyang Sichuan 621010,China |
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| Abstract: | The process for co-producing calcium hydroxide and high-pure barium chloride from barium chloride waste liquor and the main affecting factors were studied. By the procedures of double salt coprecipitation, hot filtration, crystallization and purification, calcium hydroxide with more than 95% of purity and barium chloride with 99.92% of purity were produced from barium chloride evaporation residue. Organic solvent liberation is used for barium chloride purification instead of recrystallization. It is an improvement on traditional process. |
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| Keywords: | barium chloride waste liquor precipitation crystallization purification calcium hydroxide |
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