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Titanizing method of reactor for sponge titanium production

A technology of reactor and titanium sponge, which is applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of long acid leaching time and reduce the service life of new reactors, and achieve good titanium infiltration effect, The effect of shortening the acid leaching time and avoiding damage

Inactive Publication Date: 2014-08-27
SICHUAN HENGWEI TITANIUM TECH CO LTD
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AI Technical Summary

Problems solved by technology

This technical scheme can effectively form the titanium infiltration layer, but the inventor did not study the pretreatment of the infiltration of titanium and the process parameters of the infiltration of titanium at that time, and the high temperature heating reduced the service life of the new reactor; and the acid leaching time longer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The reactor for the production of sponge titanium with a maximum production capacity of 12t is acid-leaved at 60°C for 3 days to remove rust, then washed and dried, and 50g of waste titanium of 0.8mm-2mm per square meter is applied to the inner wall, and 700kg of magnesium ingots are placed in the reactor. And control the temperature at 800-950°C, and then add 2900kg of titanium tetrachloride to carry out titanium penetration reaction. After the titanium infiltration is completed, the reactor with the titanium infiltration completed is obtained. The reactor that has completed the titanium infiltration reaction can be used for the production of sponge titanium.

Embodiment 2

[0038] The reactor for the production of sponge titanium with a maximum production capacity of 12t is acid-leaved at 60°C for 3 days to remove rust, then washed and dried, and the new reactor is used as a condenser for distilling magnesium after the production of sponge titanium, and 0.8mm~ Put 80g of 2mm waste titanium, put 500kg of magnesium ingot in the reactor, and control the temperature at 800-950°C, then add 2000-3000kg of titanium tetrachloride to carry out titanium infiltration reaction. After the titanium infiltration is completed, the reactor with the titanium infiltration completed is obtained. The reactor that has completed the titanium infiltration reaction can be used for the production of sponge titanium.

[0039] The reactors of Example 1 and Example 2 are used for the production of titanium sponge. After the production is stable, the products produced by 10 furnaces are respectively taken. According to the analysis, the iron content of the products obtained ...

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Abstract

The invention belongs to the field of nonferrous metal chemical smelting, and particularly relates to a titanizing method of a reactor for sponge titanium production. The titanizing method of the reactor for sponge titanium production is shorter in consumed time and better in effect and is provided for solving technical problems. The titanizing method of the new reactor for sponge titanium production includes the following steps that 1 the new reactor is soaked by hot acid for 1-3 day and then is washed and dried; 2 the inner wall of the new reactor is coated with titanium scrap according to the inner wall surface area of 30-80 g / m<2>; 3 a right amount of titanium tetrachloride and a right amount of magnesium are added in the new reactor, and the temperature rises to 800-950 DEG C for titanizing, wherein the addition amount of the magnesium and the titanium tetrachloride is controlled to enable generated titanium and the wall of the new reactor to form a titanizing layer. The titanizing method is good in titanizing effect, impurities in sponge titanium generated by the reactor which undergoes titanizing are greatly reduced, damage, caused by high-temperature titanizing, to the new reactor is avoided, and the service life of the reactor after titanizing is prolonged.

Description

technical field [0001] The invention belongs to the field of chemical smelting of nonferrous metals, and in particular relates to a method for infiltrating titanium into a reactor for sponge titanium production. Background technique [0002] The main process of sponge titanium production is magnesium reduction-vacuum distillation method. The basic principle is to add titanium tetrachloride to the reactor under the protection of argon to react with magnesium to generate sponge titanium and magnesium chloride. The reaction process is relatively complex. Since the raw materials and products directly contact the reactor and other related steel components during the production process, such as: sieve plates, magnesium chloride tubes, etc., iron impurities may dissolve into the raw magnesium liquid or directly enter the finished sponge titanium in the form of alloys, thereby affect product quality. [0003] The technical scheme disclosed in the invention patent CN201310039782.5:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C10/30C22B34/12
Inventor 巴升林董震宇
Owner SICHUAN HENGWEI TITANIUM TECH CO LTD
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