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Method for preparing metallic titanium by TiCl4 vacuum glow discharge

A technology of glow discharge and metal titanium, which is applied in the field of metal material metallurgy to achieve the effects of high efficiency, simple device structure and reasonable design

Active Publication Date: 2010-03-24
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods are all in the research stage, and there are still many technical issues to be studied, which cannot be compared with the existing kroll method and Hunter method

Method used

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  • Method for preparing metallic titanium by TiCl4 vacuum glow discharge

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The technical pure TiCl that will be vaporized in the vaporization device 4 4 , pass through the gas flow controller 10 and the vaporization pipeline 5 until the background vacuum reaches 5×10 -3 Pa vacuum chamber 3, controlled TiCl 4 The pressure is 1000Pa, and a negative voltage of 5000V is applied to the collector 1 (cathode) insulated from the vacuum chamber 3 through a DC power supply 9, and the anode 2 insulated from the vacuum chamber 3 generates gas ionization, forming in the region 7 of the two electrodes Glow plasma, under the action of electric field, TiCl 4 The titanium cations in the plasma generated by gas ionization are deposited on the surface of the collector 1 made of sponge-like titanium, and the chlorine gas generated by the discharge is absorbed by the gas collector 8 through the chlorine gas pipeline 6 and stored. After 4 hours of continuous treatment, 10.7Kg of titanium with an oxygen content of less than 0.01% and a chlorine content of less tha...

Embodiment 2

[0017] The technical pure TiCl that will be vaporized in the vaporization device 4 4 , pass through the gas flow controller 10 and the vaporization pipeline 5 until the background vacuum reaches 5×10 -3 Pa vacuum chamber 3, controlled TiCl 4 The pressure is 500Pa, and a negative voltage of 3000V is applied to the collector 1 (cathode) insulated from the vacuum chamber 3 through a DC power supply 9, and the anode 2 insulated from the vacuum chamber 3 generates gas ionization, forming in the region 7 of the two electrodes Glow plasma, under the action of electric field, TiCl 4 The titanium cations in the plasma generated by gas ionization are deposited on the surface of the collector 1 made of sponge-like titanium, and the chlorine gas generated by the discharge is absorbed by the gas collector 8 through the chlorine gas pipeline 6 and stored. After 10 hours of continuous treatment, 5.6 kg of titanium with an oxygen content of less than 0.01% and a chlorine content of less tha...

Embodiment 3

[0019] The technical pure TiCl that will be vaporized in the vaporization device 4 4 , pass through the gas flow controller 10 and the vaporization pipeline 5 until the background vacuum reaches 5×10 -3 Pa vacuum chamber 3, control TiCl 4 The pressure is 100Pa, and a negative voltage of 800V is applied to the collector 1 (cathode) insulated from the vacuum chamber 3 through a DC power supply 9, and the anode 2 insulated from the vacuum chamber 3 generates gas ionization, forming in the region 7 of the two electrodes Glow plasma, under the action of electric field, TiCl 4 The titanium cations in the plasma generated by gas ionization are deposited on the surface of the collector 1 made of sponge-like titanium, and the chlorine gas generated by the discharge is absorbed by the gas collector 8 through the chlorine gas pipeline 6 and stored. After 8 hours of continuous treatment, 1.3Kg of titanium with an oxygen content of less than 0.01% and a chlorine content of less than 0.05...

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Abstract

The invention discloses an equipment and method for preparing metallic titanium by TiCl4 vacuum glow discharging. The equipment comprises a vacuum chamber, the top of which is communicated with a gas-flow controller and a TiCl4 gasification device through a gasifying pipe, and the bottom of the vacuum chamber is communicated with a gas collector through a chlorine pipe; in the vacuum chamber, a collection electrode and an anode that are insulated from the vacuum chamber are provided; a power supply is connected with the collection electrode and the anode respectively. The method comprises: placing the gasified pure industrial TiCl4 from the gasification device into the vacuum chamber, applying DC voltage to ionize the TiCl4 so as to generate glow plasma, settling the positive Ti ions in the plasma by the electric field onto the surface of a sponge titanium-collecting electrode, and discharging the generated chlorine into the gas collector. The whole process in the invention is under vacuum state, therefore, the purity of the prepared titanium is high, the oxygen content is low, the efficiency is high, and massive production can be realized. The chlorine released in the process is collected and stored by the gas collector, so the invention has no environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of metal material metallurgy, and relates to a device and method for preparing metal titanium, in particular to a TiCl 4 A device and method for preparing metallic titanium by vacuum glow discharge. Background technique [0002] Titanium is an important rare metal material. Since its industrial production in 1948, it has developed very fast. Because of its small specific gravity, high specific strength, heat resistance, non-magnetic, corrosion resistance and many other advantages, it is used in aviation, aerospace, ships, It has been widely used in military fields such as electronics and weapons, as well as civilian fields such as petroleum, chemical industry, metallurgy, and medical treatment. It has become an important metal material in national economic construction and is known as the "third metal". [0003] Titanium is a new element discovered in black magnetite by British priest W. Gregor in 1791, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/12C01B7/03
Inventor 李争显杜继红王少鹏黄春良骆瑞雪高广睿王宝云李晴宇姬寿长杨升红徐海龙严鹏陈玉斌唐勇
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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