Purification of Magnesium by Vacuum Distillation and its Analysis

Yu Chao Wang; Yang Tian; Tao Qu; Bin Yang; Yong Nian Dai; Yu Pu Sun

doi:10.4028/www.scientific.net/MSF.788.52

Paper Titles

Production of Primary Magnesium by the Aluminothermic Reduction of Magnesia Extracted from Dolomite Ore
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Effect of Nd and Dy Addition on AZ91D Ignition Temperature and Microhardness
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Influence of Various Heat Treatment on Corrosion Resistance of As-Extruded Mg-9Li-3Al-2.5Sr Alloys
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Hot Deformation Behavior of As-Cast Mg-9Gd-2.5Y-Nd-0.5Zr Mg Alloy
p.45

Purification of Magnesium by Vacuum Distillation and its Analysis
p.52

Effect of Ce Addition on Microstructure and Mechanical Properties of ZM21 Magnesium Alloys
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Impact of Peak Shock Stress on the Microstructure and Reloaded Mechanical Behavior of AZ31 Magnesium Alloy
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Microstructure and Mechanical Properties of As-Rolled Mg-Zn-Gd-Ca-Mn Sheets
p.68

Microstructural Evolution of Friction Stir Treated WE43 Alloy
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HomeMaterials Science ForumMaterials Science Forum Vol. 788Purification of Magnesium by Vacuum Distillation...

Purification of Magnesium by Vacuum Distillation and its Analysis

Abstract:

Based on thermodynamic analysis, the degree of the separation between magnesium and impurities under vacuum was estimated in this paper. It demonstrated that it may be feasible to purify crude magnesium by vacuum distillation on experimental scale. The high purity (99.98 % or 3N8, mass fraction) magnesium (Mg) was obtained through vacuum distillation using 96 % Mg as a raw material under 15 Pa. The inductively coupled plasma atomic emission spectroscopy (ICP-AES) was applied for the analysis of the raw material and the distilled magnesium for 6 impurity elements. The results indicated that the low-volatile impurities such as Fe, Cu, Mn, Pb, Ca could be reduced at the stage of 873K for 30min and the reduction of total impurity content from 34600 ppm (1N6) for crude magnesium to 180ppm (3N8) upon condensate. In conclusion, purification of magnesium was carried out in an efficient high-yield vacuum distillation system designed and fabricated for purifying 1N6 indigenous magnesium to 3N8 (99.98%).

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Periodical:

Materials Science Forum (Volume 788)

Pages:

52-57

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.788.52

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Online since:

April 2014

Authors:

Yu Chao Wang*, Yang Tian, Tao Qu, Bin Yang, Yong Nian Dai, Yu Pu Sun

Keywords:

High Purity Magnesium, Separation, Vacuum Distillation

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