Ammoniation Technology for Dehydration of Hydrated Magnesium Chloride in China

Abstract:

Ammonination technique for dehydration of hydrated magnesium chloride is a special kind of method for preparation of high-pure anhydrous magnesium chloride, which is requisite for electrolytically manufacturing metal magnesium. The technique has been developing for decades in the west world. China has now been exploiting the technique for his magnesium ore, especially the magnesium resource in the west of China. We started investigation of the method for several years, and several new progresses were arrived for preparation of anhydrous magnesium chloride. From our study, ethanol, methanol and water solution can be used for the method, and each had an advantage over the others; the ammonia used in the technique for preparation of anhydrous magnesium chloride is less corrosive for the equipment, and friendly for environment. The method gives great potential application in industry of metal magnesium and magnesium matrix materials.

• Periodical: Materials Science Forum (Volumes 488-489)
• Pages: 95-98
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.488-489.95
• Online since: July 2005
• Authors: Guangming Long, Peihua Ma, Minxiong Chu
• Keywords: Ammoniation Technology, Anhydrous Magnesium Chloride

References

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[4] G. Long, Doctoral thesis: Studies on the Preparation of Anhydrous MgCl2 Used in Manufacture of Metal Magnesium from Bischofite Abundant in Salt Lakes by Ammoniation Processes (2004).