Title:
高純度マグネシウムの真空蒸留方法及び装置
Document Type and Number:
Japanese Patent JP6655587
Kind Code:
B2
Abstract:
A process for producing high-purity magnesium by means of distillation at reduced pressure, characterized in that, the high-purity magnesium condenses in the liquid state, whereby the starting material in the form of a magnesium-containing melt is present together with the upper region of a condensation vessel in the upper region of a retort, whereby the retort consist of a material that releases no volatile impurities into the magnesium steam, whereby the upper region of the retort is brought to a temperature above the boiling point of magnesium, within the limits of two level lines, and is then held constant, such that steam rises from the boiling magnesium-containing metal melt and fills the interior of the upper region of the retort, whereby the steam infiltrating the upper region of the condensation vessel condenses below the lower level line and collects as high-purity melt in the lower region of the condensation vessel, and whereby in order to prevent contaminated melt that drops from the region above the upper level line from reaching the opening of the condensation vessel, this is protected by a cover, which conveys the impure magnesium back again into the melt.
Inventors:
Leffler, Jörg
Ugowitz Tour, Peter
Wekman, Christian
Becker, Min
Feichtinger, Heinrich
Ugowitz Tour, Peter
Wekman, Christian
Becker, Min
Feichtinger, Heinrich
Application Number:
JP2017204297A
Publication Date:
February 26, 2020
Filing Date:
October 23, 2017
Export Citation:
Assignee:
ETH Zurich
International Classes:
C22B26/22; C22B5/16; C22B9/04; F27B14/04
Domestic Patent References:
| JP61133331A | ||||
| JP58123840A | ||||
| JP349105B1 | ||||
| JP2003147447A |
Attorney, Agent or Firm:
Asamura patent office