Method for preparing magnesium deuteride by adopting high-temperature direct process

A magnesium deuterium, direct method technology, applied in the intersection of material science and nuclear technology, can solve the problems of high cost, high activity, and high equipment requirements, and achieve the effects of high product yield, simple operation process and good purity

Active Publication Date: 2014-12-03
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two preparation methods can theoretically prepare high-purity magnesium deuteride, but due to their respective characteristics, there are great difficulties in industrial production
For example, the first method requires high temperature and pressure control, and it is difficult to prepare high-purity magnesium deuteride. At present, there are many reports of similar methods in the preparation of magnesium hydride, but most of

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 preparing magnesium deuteride by adopting high-temperature direct process

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1:

[0023] Under the protection of argon, weigh 603g of magnesium lumps with a particle size of 8mm and a purity of 99.99%, and put them into a high-temperature and high-pressure reactor, and place the reactor in the high-pressure reactor compartment, such as figure 1 As shown; replace the gas in the tank chamber with argon, pump the pressure in the chamber to a negative pressure of 0.023MPa, pass in 99.999% high-purity deuterium gas, pump again to a negative pressure of 0.018MPa, repeat the operation twice; / min Rapidly raise the temperature to 266℃, pass in high-purity deuterium gas, increase the pressure of the deuterium gas in the tank to 100 atmospheres, and react for 50min; increase the temperature at a rate of 10℃ / min for 38min to 422℃ and stop heating, keep the temperature and Deuterium gas flow rate, continue to react for 70 minutes, until the pressure of the deuterium gas pressure gauge and the autoclave is completely balanced; at this time, the temperat...

Example Embodiment

[0024] Example 2:

[0025] In an argon atmosphere, cut the 99.99% purity magnesium block into small pieces with a particle size of 10mm, weigh 2512g, and put it into a high-temperature and high-pressure reactor, and place the reactor in the high-pressure reactor compartment; use argon Replace the gas in the kettle cabin with gas, pump the pressure in the cabin to a negative pressure of 0.019 MPa, pass in 99.999% high purity deuterium gas, pump again to a negative pressure of 0.015 MPa, repeat the operation 4 times; use a heating rate of 20°C / min Raise the temperature to 296℃ quickly, pass in high-purity deuterium gas, and increase the pressure of the deuterium gas in the tank to 150 atmospheres; after 72 minutes of reaction, the temperature will be raised at a rate of 12℃ / min for 34 minutes to 533℃ and stop heating at the same time. The deuterium gas flow rate, continue to react for 85 minutes, until the pressure of the deuterium gas pressure gauge and the autoclave are completel...

Example Embodiment

[0026] Example 3:

[0027] Under the protection of argon, use fine sandpaper to polish the oxide layer on the surface of the magnesium block with a purity of 99.99% to a metallic luster, cut into small pieces with a particle size of 14mm, weigh 408g, and put it into a high temperature and high pressure reactor. The device is placed in the high-pressure reactor compartment, such as figure 1 As shown; replace the gas in the tank chamber with argon, pump the pressure in the chamber to a negative pressure of 0.020MPa, pass in 99.999% high-purity deuterium gas, pump again to a negative pressure of 0.015MPa, repeat the operation 3 times; / min Rapidly raise the temperature to 245℃, pass in high-purity deuterium gas, increase the pressure of the deuterium gas in the tank to 200 atmospheres; control the flow rate to 2041ml / min unchanged, and at the same time increase the temperature at a rate of 8℃ / min for 55min to 537 Stop heating at ℃, keep constant temperature and deuterium gas flow r...

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 relates to a method for preparing magnesium deuteride by adopting a high-temperature direct process, belonging to the crossing field of material science and nuclear technology. According to the method, magnesium reacts with deuterium gas at the high temperature to generate magnesium deuteride; the problems of large-scale industrialized preparation technology and preparation purity of magnesium deuteride are solved, no complicated production device is used, the required preparation device is simple and easily purchased, and a magnesium deuteride production line can be safely built under the existing factory conditions; a preparation process is simple and easy to carry out and is safe and reliable due to protection of inert gas; the product yield is relatively high, the product purity and stability are relatively good, and magnesium deuteride can be stored for a long term; no three wastes are generated in the preparation process, and the preparation process is harmless to a human body and the environment, is environment-friendly and is of great significance on large-scale industrialized safe preparation and large-scale application of high-purity magnesium deuteride.

Description

technical field [0001] The invention relates to a method for preparing magnesium deuteride by a high-temperature direct method, which belongs to the cross field of material science and nuclear technology. Background technique [0002] In today's world, energy is still the resource that countries all over the world strive to compete for. With the increasing shortage of fossil fuels, energy problems and energy conflicts among countries have become more prominent, which is directly related to world peace and stability. It can be said that energy is a determinant of a country's comprehensive national strength and world competitiveness. The competition for energy in today's world is mostly concentrated on fossil fuels, and fossil fuels are non-renewable resources. To achieve long-term abundance and sustainable supply of energy, the key lies in the development of new energy sources. [0003] Deuterium is a stable isotope of hydrogen, also known as deuterium, symbol D or 2 H, com...

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): C01F5/00
Inventor 刘吉平刘晓波
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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