Method and device for producing titanium by fused salt electrolysis process

A technology of molten salt electrolysis and mixed molten salt, applied in electrolysis process, electrolysis components, electrodes and other directions, can solve the problems of high energy consumption, high cost of raw material preparation, unsatisfactory product purity, etc., and achieve the effect of cost reduction

Inactive Publication Date: 2013-04-03
SIX NINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, the raw material for the production of high-purity titanium by molten salt electrolysis in the industry is spo...

Method used

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  • Method and device for producing titanium by fused salt electrolysis process
  • Method and device for producing titanium by fused salt electrolysis process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] First put sodium chloride and potassium chloride into the electrolytic reaction pot, the molar ratio of sodium chloride and potassium chloride is 1:1; figure 1 The device for producing titanium by molten salt electrolysis shown in the figure is connected, and the vacuum pumped to 5×10 through the vacuum pumping device of the electric reaction pot -1 pa, start the resistance heating furnace of the electrolytic reaction pot to melt the sodium chloride and potassium chloride in the electrolytic reaction pot, control the temperature at 745.9°C, feed titanium tetrachloride liquid and argon gas through the feed pipe, and the tetrachloride The purity of the titanium liquid is 99.995%, and the feeding speed is controlled at 28ml / min. Electrolysis is carried out by electrification. The electrolysis process conditions are voltage: 1.9V and current: 400A. After the electrolysis is completed, the cathode link rod is lifted up by the lifting device of the lifting motor, and the meta...

Embodiment 2

[0062] First put sodium chloride and potassium chloride into the electrolytic reaction pot, the molar ratio of sodium chloride and potassium chloride is 1:1; figure 1 The device for producing titanium by molten salt electrolysis shown in the figure is connected, and the vacuum pumped to 5×10 through the vacuum pumping device of the electric reaction pot -1 pa, start the resistance heating furnace of the electrolytic reaction pot to melt the sodium chloride and potassium chloride in the electrolytic reaction pot, control the temperature at 745.9°C, feed titanium tetrachloride liquid and argon gas through the feed pipe, and the tetrachloride The purity of the titanium liquid is 99.995%, and the feeding speed is controlled at 26ml / min. Electrolysis is carried out by electrification. The electrolysis process conditions are voltage: 1.9V and current: 380A. After the electrolysis is completed, the cathode link rod is lifted up by the lifting device of the lifting motor, and the meta...

Embodiment 3

[0064] First put sodium chloride and potassium chloride into the electrolytic reaction pot, the molar ratio of sodium chloride and magnesium chloride is 3:2; figure 1 The device for producing titanium by molten salt electrolysis shown in the figure is connected, and the vacuum pumped to 5×10 through the vacuum pumping device of the electric reaction pot -1 pa, start the resistance heating furnace of the electrolytic reaction pot to melt the sodium chloride and potassium chloride in the electrolytic reaction pot, control the temperature at 510°C, feed titanium tetrachloride liquid and argon gas through the feed pipe, and the tetrachloride The purity of the titanium liquid is 99.995%, and the feeding speed is controlled at 28ml / min. Electrolysis is carried out by electrification. The electrolysis process conditions are voltage: 1.9V and current: 400A. After the electrolysis is completed, the cathode link rod is lifted up by the lifting device of the lifting motor, and the metal ...

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Abstract

The invention provides a method and device for producing titanium by a fused salt electrolysis process, relating to a device adopting titanium tetrachloride as a raw material to directly produce high purity titanium by the fused salt electrolysis process. The method is characterized by adopting titanium tetrachloride as the raw material, introducing titanium tetrachloride into mixed fused salt of sodium chloride and potassium chloride, adopting magnesium as an anode and titanium as a cathode to electrolyze titanium tetrachloride to generate magnesium chloride and titanium, directly depositing the generated titanium on the titanium cathode and separating the generated titanium to obtain a titanium product. The method and device for producing titanium by a fused salt electrolysis process have the beneficial effects that the method and the device can be used for directly producing the high purity titanium from titanium tetrachloride without using titanium sponge as a raw material, can save the cost and can be used for producing titanium with higher purity; the produced high purity titanium is shaped like a cylinder or a square column; and a titanium ingot in the shape can be directly used as a raw material of an electron beam smelting furnace or a consumable electrode vacuum furnace in the next process, thus saving the processes of briquetting and welding and further saving the cost.

Description

technical field [0001] A method and device for producing titanium by molten salt electrolysis, relating to a method and device for directly producing high-purity titanium by molten salt electrolysis using titanium tetrachloride as a raw material. Background technique [0002] The industry generally refers to titanium with a purity of more than 99.995%, that is, the sum of metal impurities below 50ppm, as high-purity titanium. It is mainly used in high-tech fields such as large-scale integrated circuits, aerospace, and medical alloys. At present, the preparation methods of high-purity titanium can be divided into two categories: physical method and chemical refining method. Among them, the physical methods mainly include regional smelting method, segregation method, high vacuum smelting method, vacuum distillation method, electromigration method, electromagnetic field purification method, light excitation refining method, electron beam smelting method, etc. Chemical ...

Claims

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Application Information

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IPC IPC(8): C25C3/28C25C7/00
CPCC25C3/28C22B34/1272C25C7/025
Inventor 哈里·罗森伯格郭蔚郭建平
Owner SIX NINE TECH
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