Method for synthesizing magnesium germanide

A technology of magnesium germanium and germanium powder, applied in chemical instruments and methods, germanium compounds, inorganic chemistry, etc., can solve problems such as methods to be improved, magnesium vapor is volatile, and power consumption is large, and achieves low impurity content and reduced Energy consumption, the effect of overcoming large power consumption

Inactive Publication Date: 2008-12-10
ZHEJIANG SCI-TECH UNIV
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this method is that it consumes a lot of electricity, and the volatile characteristics of magnesium vapor in the molten state make the magnesium will partly escape and be lost during the synthesis process.
Thereby, the method for synthesizing magnesium germanium by direct reaction of germanium and magnesium needs to be improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for synthesizing magnesium germanide
  • Method for synthesizing magnesium germanide
  • Method for synthesizing magnesium germanide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 7.261 grams of germanium powder and 4.862 grams of magnesium powder were uniformly mixed and loaded into reactor 3 and sealed. The reactor 3 is pushed into the synthesis furnace, and the furnace tube 2 is sealed with a quick-fit flange with a sealing ring. Use the mechanical pump in the vacuum system 5 to evacuate the inside of the furnace tube 2 to below 10 Pa, move it into the heating furnace 1, and start to heat up. The temperature control system 4 controls the temperature in the furnace. When the temperature reaches the synthesis temperature of 500° C., the temperature is kept for 3 hours to fully proceed the reaction, and then the heating furnace is removed and cooled naturally. Slowly put in air after cooling down, take out the product, and obtain loose blue-gray magnesium germanide powder.

Embodiment 2

[0019] 14.522 grams of germanium powder and 9.724 grams of magnesium powder were uniformly mixed and loaded into reactor 3 and sealed. The reactor 3 is pushed into the synthesis furnace, and the furnace tube 2 is sealed with a quick-fit flange with a sealing ring. Use the mechanical pump in the vacuum system 5 to evacuate the inside of the furnace tube 2 to below 10 Pa, move it into the heating furnace 1, and start to heat up. The temperature control system 4 controls the temperature in the furnace. When the temperature reaches the synthesis temperature of 550° C., keep it warm for 2 hours to fully proceed the reaction, then remove the heating furnace and let it cool naturally. Slowly put in air after cooling down, take out the product, and obtain loose blue-gray magnesium germanide powder.

Embodiment 3

[0021] 21.783 grams of germanium powder and 14.586 grams of magnesium powder were uniformly mixed and loaded into reactor 3 and sealed. The reactor 3 is pushed into the synthesis furnace, and the furnace tube 2 is sealed with a quick-fit flange with a sealing ring. Use the mechanical pump in the vacuum system 5 to evacuate the inside of the furnace tube 2 to below 10 Pa, move it into the heating furnace 1, and start to heat up. The temperature control system 4 controls the temperature in the furnace. When the temperature reaches the synthesis temperature of 600° C., keep it warm for 1 hour to fully proceed the reaction, then remove the heating furnace and let it cool naturally. Slowly put in air after cooling down, take out the product, and obtain loose blue-gray magnesium germanide powder.

[0022] figure 2 It is the XRD spectrum pattern of the magnesium germanide synthesized in embodiment 1. It is found by comparison that the obtained magnesium germanium is consistent wi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for synthesizing magnesium germanide. Germanium powder and magnesium powder are uniformly mixed according to the mass ratio of 1 to 2, and filled into a reactor, and the reactor is sealed and pushed into a furnace tube. The furnace tube is vacuumized by a mechanical pump and transferred into a heating furnace, and then temperature rise begins. When the temperature reaches between 500 and 600 DEG C required for synthesis, heat insulation is performed for 1 to 3 hours so as to make the reaction fully performed; and the reactor is naturally cooled and then taken out, and bluish grey magnesium germanide powder is obtained. The magnesium germanide is generated by the germanium powder and the magnesium powder in the sealed reactor, thereby the problem of ratio deviation caused by diffusion losses of magnesium steam is avoided. The conversion ratio is obviously higher than that of a general method; the content of impurities is low; and the purity of products is high. Moreover, the purity of the magnesium germanide has great significance on guaranteeing the purity of germane prepared by taking the magnesium germanide as a raw material. Simultaneously, the method overcomes the defect of large power consumption when the electric furnace is used for heating and fusing germanium and magnesium to prepare the magnesium germanide, and reduces the energy consumption.

Description

technical field [0001] The invention relates to material preparation technology, in particular to a method for synthesizing magnesium germanium. Background technique [0002] Germane is an important electronic gas with a wide range of uses. With the development of microelectronics industry, solar photovoltaic industry and aerospace industry, the demand for high-purity germane is becoming more and more urgent. Epitaxial growth of high-quality silicon germanium materials requires high-purity germane gas source, the preparation of low-cost and high-efficiency germanium-silicon solar cells requires high-purity germane, and the preparation of various space ray detectors also requires high-purity germane. [0003] Magnesium germanium is one of the main raw materials for preparing germane, which is in the form of blue-gray powder. Magnesium germanium is usually synthesized directly using germanium and magnesium or various inorganic compounds containing germanium and magnesium as ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01G17/00
Inventor 席珍强杜平凡张瑞丽张亚萍张秀芳姚奎鸿
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap