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Method for preparing porous titanium powder

A technology for porous titanium and titanium raw materials, which is applied in the field of preparing porous titanium powder, can solve problems such as difficult to stabilize porous titanium powder, and achieve the effect of improving the average valence state

Active Publication Date: 2016-01-06
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to obtain porous titanium powder stably by electrolytically refining titanium with soluble anodes.

Method used

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  • Method for preparing porous titanium powder
  • Method for preparing porous titanium powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] With graphite as anode and carbon steel as cathode, 10wt% TiCl is added to NaCl and KCl in equimolar ratio 3 The mixture formed is an electrolyte to form an electrolytic cell, and titanium sponge is added into the electrolyte as a raw material, and a direct current is connected for electrolysis. The total concentration of titanium ions in the electrolyte is 1.0wt%, and the anode current density is controlled to 0.8A / cm 2 , cathode current density 0.1A / cm 2 , the electrolysis temperature is 760°C. After the electrolysis, the product obtained from the cathode is washed with dilute hydrochloric acid and then observed by SEM. The results are as follows figure 2 As shown, the porous morphology of the obtained titanium powder is uniform.

Embodiment 2

[0054] With graphite as anode and carbon steel as cathode, 15wt% TiCl is added to NaCl and KCl in equimolar ratio 2 The mixture formed is an electrolyte to form an electrolytic cell, and titanium sponge is added into the electrolyte as a raw material, and a direct current is connected for electrolysis. Control the anode current density 0.2A / cm 2 , cathode current density 0.8A / cm 2 , the electrolysis temperature is 850°C. After the electrolysis, the product obtained from the cathode is washed with dilute hydrochloric acid and then observed by SEM. The results are as follows image 3 As shown, the obtained titanium powder has a uniform porous morphology, and the difference from the product obtained in Example 1 is that the basic particle diameter is relatively coarse.

Embodiment 3

[0056] With graphite as anode and carbon steel as cathode, 8wt% TiCl is added to NaCl and KCl in equimolar ratio 2 , 9wt% TiCl 3 The formed mixture is used as an electrolyte to form an electrolytic cell, and titanium sponge is added into the electrolyte as a raw material, and a direct current is connected for electrolysis. Control the anode current density 0.5A / cm 2 , cathode current density 0.3A / cm 2 , the electrolysis temperature is 800°C. After the electrolysis, the product obtained from the cathode is washed with dilute hydrochloric acid and then observed by SEM. The results are as follows Figure 4 As shown, the obtained titanium powder has a uniform porous morphology, and the basic particle diameter of the obtained product is between that of Example 1 and Example 2.

[0057] Although the invention has been described above in conjunction with exemplary embodiments, it will be apparent to those skilled in the art that various modifications may be made to the above embod...

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Abstract

The invention belongs to the technical field of rare metal refining, and in particular, relates to a method for preparing porous titanium powder. The technical problem to be solved of the invention is to provide a method for preparing porous titanium; and the method comprises the following steps: a titanium raw material is added in an electrolyte for electrolysis to obtain the porous titanium powder on a cathode; the electrolyte is a mixture of titanium halide and molten salt; the molten salt is at least one of an alkali metal halide or a rare earth metal halide; and in electrolysis, an anode adopts an inert material or a metal material with more positive potential compared with titanium, and the cathode adopts a metal material. The method can prepare the porous titanium powder.

Description

technical field [0001] The invention belongs to the technical field of rare metal refining, and in particular relates to a method for preparing porous titanium powder. Background technique [0002] In recent years, with the advancement of powder metallurgy technology, the preparation technology of titanium porous materials has also developed rapidly. With the improvement of technology maturity, the application range of titanium porous materials has been broadened, such as batteries, chemical industry, medical treatment and other industries. [0003] Usually, titanium porous materials are processed by powder metallurgy technology using titanium powder as raw material, and the titanium porous materials processed by using porous titanium powder as raw materials have better performance. At present, there is no accurate definition of porous titanium powder in the industry. Generally, titanium powder with microscopic particles with a porous structure is called porous titanium powd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/04
Inventor 邓斌穆天柱陈兵赵三超穆宏波闫蓓蕾朱福兴彭卫星马尚润
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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