| 盐湖水氯镁石制取金属镁及高纯镁砂的生产技术 |
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| 引用本文： | 徐日瑶,刘宏专.盐湖水氯镁石制取金属镁及高纯镁砂的生产技术[J].盐湖研究,2003,11(2):46-50. |
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| 作者姓名： | 徐日瑶 刘宏专 |
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| 作者单位： | 中南大学冶金科学与工程系,湖南,长沙410083 |
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| 摘 要： | 介绍了盐湖水氯镁石用溶剂络合 ,NH3 螯合结晶脱水 ,制取无水氯化镁 ,电解制镁技术。用螯合物(MgCl2 ·6NH3 )脱氨后的NH3 与MgCl2 溶液作用生产高纯镁砂 ;直接用NH3 与MgCl2 溶液作用生产高纯镁砂 ,副产的NH4Cl再与水氯镁石作用后制取铵光卤石 ,熔融脱氨后 ,无水氯化镁熔体电解制镁。这两种生产方法 ,对开发青海盐湖水氯镁石的综合利用是最佳工艺。
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| 关 键 词： | 水氯镁石 金属镁 高纯镁砂 生产技术 |
| 文章编号： | 1008-858X(2003)02-0046-05 |
| 修稿时间： | 2002年9月12日 |
Technology for the Production of Magnesium and High-purity Magnesite Clinker using Bischofite from Salt Lakes |
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| XU Ri yao,LIU Hong zhuan.Technology for the Production of Magnesium and High-purity Magnesite Clinker using Bischofite from Salt Lakes[J].Journal of Salt Lake Research,2003,11(2):46-50. |
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| Authors: | XU Ri yao LIU Hong zhuan |
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| Abstract: | Magnesium metal can be produced by two methods:1).By solvent complexation, ammonia complexation and crystal dehydration, anhydrous magnesium chloride is prepared from bischofite. Then magnesium metal is obtained by electrolysis of anhydrous magnesite.2). Contacting ammonia obtained from the deaminization of MgCl 2·6NH 3 with magnesium chloride solution or directly contacting ammonia with the solution can result in high-purity magnesite clinker. The by-product NH 4Cl is reacted with bischofite and ammonium carnallite is formed. Melting and deaminization of ammonium carnallite produces an anhydrous magnesium melt, which undergoes an eletrolysis step to generate magnesium metal.Both methods are optimum processes for the comprehensive utilization of bischofite from Qinghai salt lakes. |
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| Keywords: | Bischofite Magnesium metal High-purity magnesite clinker Production technology |
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