Study on Recycle of Magnesium from Magnesium Slag by Vacuum Distillation
China is a big country in magnesium production,producing more than 4.5 million tons of magnesium slag every year in recent years.The research on magnesium slag shows that there may be elemental magnesium in magnesium slag.In this paper,magnesium slag with high elemental magnesium content is pre-separated and selected by vacuum distillation,700℃is selected as the test temperature and the vacuum degree is maintained below 10 Pa.Through the reasonable test process and test equipment,part of the elemental magnesium was recovered,the recovery rate of magnesium reached 37.35%,and the recovered magnesium content was 99.51%.
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