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Titanium infiltration 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, etc., and achieve good titanium infiltration effect, Effect of shortening acid leaching time and low temperature

Inactive Publication Date: 2016-06-08
SICHUAN HENGWEI TITANIUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 chemical smelting of nonferrous metals, and in particular relates to a method for infiltrating titanium into a reactor for sponge titanium production. The technical problem to be solved by the present invention is to provide a method for infiltrating titanium in a reactor for sponge titanium production with shorter time consumption and better effect. The titanium infiltration method of the primary reactor used for titanium sponge production of the present invention comprises the following steps: a, the new reactor is soaked with hot acid for 1-3 days, then washed and dried; Smear waste titanium; c. Add an appropriate amount of titanium tetrachloride and magnesium to the new reactor, and heat up to 800-950°C to infiltrate titanium; among them, the amount of magnesium and titanium tetrachloride is added so that the generated titanium is compatible with the new reactor. It is sufficient to form a titanium infiltrated layer on the wall. The titanizing method of the present invention has a better titanizing effect, and the impurities in the titanium sponge produced by the titanized reactor are greatly reduced; it avoids high-temperature titanizing damage to the new reactor, and improves the efficiency of the titanized reactor. service life.

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 Patents(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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