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Method for preparing titanium deuteride by high-temperature direct process

A technology of deuterated titanium and direct method, which is applied in the interdisciplinary field of materials science and nuclear technology, can solve the problems of low product purity and incapable large-scale preparation of deuterated titanium, and achieve the effects of safe and stable storage, easy operation and simple equipment

Active Publication Date: 2014-12-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that existing deuterated titanium cannot be prepared on a large scale and the product has low purity, and provides a method for preparing deuterated titanium by a high-temperature direct method

Method used

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  • Method for preparing titanium deuteride by high-temperature direct process

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Experimental program
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Effect test

Embodiment 1

[0023] Under the protection of argon, wash a titanium block with a particle size of 2 mm and a purity of 99.99% in 40% sodium hydroxide solution at 70°C for 20 minutes, wash it with deionized water for 4 times, and dry it in vacuum; weigh 700g and put it into quartz glass tube, and placed in the high-temperature heating furnace cabin, quickly close the furnace cabin, such as figure 1 As shown; after replacing the gas in the heating furnace cabin with argon, the pressure in the cabin is pumped to a negative pressure of 0.024MPa, and then 99.999% high-purity deuterium gas is introduced to the normal pressure state. After repeated operations for 3 times, the cabin is kept at Negative pressure state: quickly raise the temperature in the furnace cabin to 481°C at a heating rate of 30°C / min, and then introduce high-purity deuterium gas, and control the flow rate at 2406ml / min. After 40 minutes of reaction, continue to Speed ​​up the temperature for 36 minutes to 783°C, stop heating,...

Embodiment 2

[0025] Under the protection of argon, wash the titanium block with a particle size of 10 mm and a purity of 99.99% in 40% sodium hydroxide solution at 50°C for 45 minutes, and after washing with deionized water for 7 times, dry it in vacuum; weigh 2000g, and put it into quartz glass and put it in the high-temperature heating furnace cabin, and quickly close the furnace cabin; after replacing the gas in the heating furnace cabin with argon, the pressure in the cabin is pumped to a negative pressure of 0.015MPa, and then 99.999% high-purity deuterium gas is introduced to normal After repeated operations for 3 times, keep the cabin in a negative pressure state; quickly raise the temperature in the furnace cabin to 458°C at a heating rate of 40°C / min, inject high-purity deuterium gas, and control the flow rate to 4674ml / min. Change, after 48 minutes of reaction, continue to raise the temperature at a rate of 10°C / min for 47 minutes to 776°C, stop heating, keep the temperature and d...

Embodiment 3

[0027]Under the protection of argon, boil a titanium block with a particle size of 2mm and a purity of 99.99% in ethanol for 30 minutes, then wash it in 98% concentrated sulfuric acid at 80°C for 20 minutes, wash it 5 times with deionized water, and dry it in vacuum; weigh 750g , into a quartz glass tube, and placed in a high-temperature heating furnace cabin, and quickly close the furnace cabin; after replacing the gas in the heating furnace cabin with argon, pump the pressure in the cabin to a negative pressure of 0.020MPa, and then introduce 99.999% high Pure deuterium gas is brought to the normal pressure state, and after repeated operations 3 times, the cabin is kept in a negative pressure state; the temperature in the furnace cabin is raised to 421 °C at a heating rate of 20 °C / min, and high-purity deuterium gas is introduced, and the flow rate is controlled to be 2972ml / min remains unchanged, after 42 minutes of reaction, continue to raise the temperature at a rate of 16...

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Abstract

The invention relates to a method for preparing titanium deuteride by a high-temperature direct process, belonging to the cross fields of material science and nuclear science. Metal titanium and deuterium gas react at high temperature to generate the titanium deuteride. The method solves the problems of titanium deuteride industrial-scale preparation technique and preparation purity, does not need complex production devices, only needs simple and accessible preparation devices, and thus, can implement safe construction of the titanium deuteride production line under existing plant conditions. The preparation technique is simple and easy to operate, does not need any high-temperature pressurizing or depressurizing device in the preparation process, and is safe and reliable under the protection of inert gas. The product has the advantages of favorable yield, favorable purity and high stability, and can be stored for a long time. The method does not generate three wastes in the production process, is harmless to the human body and environment, is environment-friendly and green, and thus, has important meanings for industrial large-scale safe preparation of high-purity titanium deuteride and large-scale application thereof.

Description

technical field [0001] The invention relates to a method for preparing deuterated titanium by a high-temperature direct method, which belongs to the cross field of material science and nuclear technology. Background technique [0002] Materials are the material basis for human survival and development, together with information and energy, they constitute the three pillars of the world's new technological revolution. In today's world, new breakthroughs and changes are brewing in technology and industry. Developed countries regard advanced materials as the basis and key of industrial competition, and list material technology and material industry as strategic priorities for development. [0003] Deuterium element is a stable isotope of hydrogen. It has the same chemical properties as hydrogen and has a high combustion calorific value. Chemical changes can release a lot of heat energy. The structure of deuterium atoms is different from that of hydrogen atoms. It is mainly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/00
Inventor 刘吉平刘晓波
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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