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Method for producing ultra-high-purity magnesium from industrial pure magnesium

An industrially pure and ultra-high technology, applied in the direction of improving process efficiency, can solve the problems of difficult breakthrough in purity and secondary pollution, and achieve the effect of improving purity

Inactive Publication Date: 2018-03-27
WENXI COUNTY REGAL MAGNESIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the biggest problems in the process of preparing high-purity metal magnesium by the above method is that it is easy to produce secondary pollution, and the purity is still difficult to break through 99.99wt%.

Method used

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Embodiment Construction

[0016] A method for producing ultra-high-purity magnesium from industrial pure magnesium can significantly reduce the content of impurity elements in industrial metal pure magnesium. Specific implementation steps:

[0017] 1. Place the industrially pure magnesium ingots with clean surfaces in a special container in an orderly manner, and place them in a vacuum distiller together with the special container, and install the graphite tray (filter material inside), the crystallizer, and the circulating water jacket in sequence. Then it is installed on the electric heating furnace as a whole, and the center of the vacuum distiller and the center of the heating furnace are on the same center line;

[0018] 2. Insert the vacuum pipeline and circulating water pipeline, first turn on the vacuum pumping system, then turn on the circulating water system, check that there is no air leakage and water leakage, then turn on the power supply of the heating furnace, and start to heat up. Befor...

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Abstract

The invention belongs to the field of metal material preparation, and specifically relates to a method for producing ultra-high-purity metallic magnesium from industrial pure magnesium. According to the method, vacuum distillation is directly carried out on an industrial magnesium ingot; the vacuum degree of a vacuum chamber is controlled to be 1.0-10Pa; the temperature of a raw material area is controlled to be 700-850 DEG C; and the temperature of a condensation area is controlled in three sections: the temperature in the first section is 500-600 DEG C, the temperature in the second sectionis 350-500 DEG C, and the temperature in the third section is 250-350 DEG C. Relative to metal metallic magnesium, impurities with high boiling points and low saturated vapor pressures are condensed in the first section of the condensation area, impurities with low boiling points and high saturated vapor pressures are condensed in the third section of the condensation area, and the main metallic magnesium is condensed in the middle area, so that the ultra-high-purity metallic magnesium is directly generated. According to the method disclosed by the invention, the ultra-high-purity metallic magnesium with a purity of greater than or equal to 99.996wt% is obtained, and the needs of the high-end science and technology fields such as national defense, aerospace, high-end electronic industry and nuclear industry can be completely met.

Description

technical field [0001] The invention belongs to the field of metal material preparation, and in particular relates to a method for producing ultra-high-purity metal magnesium from industrial pure magnesium. Background technique [0002] Magnesium is the lowest density of all structural metals and alloys. Compared with other metal structural materials, magnesium and magnesium alloys have a series of advantages such as high specific strength and specific stiffness, strong vibration damping, electromagnetic shielding and radiation resistance, easy cutting and processing, and easy recycling. They are used in automobiles, electronics, electrical appliances, It has extremely important application value and broad application prospects in the fields of transportation, biology, aerospace, aviation and national defense military industry. Green Engineering Materials". [0003] High-purity magnesium is an important basic raw material for the semiconductor and electronics industries. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B26/22C22B9/02C22B9/04
CPCC22B9/02C22B9/04C22B26/22Y02P10/20
Inventor 闫国庆杨光辉林毛古裴晓志柴海俊李文礼
Owner WENXI COUNTY REGAL MAGNESIUM
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