Ultrafine titanium powder or titanium alloy powder and preparation method thereof

A technology of titanium alloy powder and titanium alloy is applied in the field of ultrafine titanium powder or titanium alloy powder and its preparation, and achieves the effects of low production cost, high purity and controllable particle size

Inactive Publication Date: 2018-04-13
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

[0003] At present, there are few processes for preparing ultra-fine titanium powder or titanium alloy powder, and no industrialization has been formed. With the development of molten salt electrolysis, the electrolysis of elemental metal and alloy metal technology is gradually industrialized, such as sponge titanium refining to prepare high-purity titanium powder, MER process, copper alloy powder, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take sodium chloride and potassium chloride (molar ratio 1:1) as the total weight of the molten salt system 5kg, put 200g of titanium sponge in the molten salt, add 600g of TiCl 4 React with titanium sponge to prepare an electrolyte system containing titanium ions.

[0025] Graphite or metal baskets are used as anode loading baskets, titanium sponge blocks are placed in them, and stainless steel rods are used as cathode rods; by controlling the anode current output voltage is 4.0V, and the cathode current density is 0.2A / cm 2 , electrolysis time 1 hour, successfully obtained cathode product (containing electrolyte) 40g; adopt 1% ​​dilute hydrochloric acid to carry out post-treatment, remove electrolyte, dry, obtain high-purity titanium powder 20g, purity can reach 99.9%, can be obtained by particle size analyzer The particle size distribution range D75 is calculated: 10 μm, and then the titanium powder is vacuum ball milled for 2 hours to obtain ultra-fine titanium powd...

Embodiment 2

[0027] Take sodium chloride and potassium chloride (molar ratio 1:1) as the total weight of the molten salt system 5kg, put 200g of vanadium-titanium alloy in the molten salt, add 600g of TiCl 4 React with titanium sponge to prepare an electrolyte system containing titanium ions and vanadium ions.

[0028] Graphite or metal baskets are used as anode loading baskets, vanadium-titanium alloys are placed in them, and stainless steel rods are used as cathode rods; by controlling the anode current output voltage is 4.5V, and the cathode current density is 0.25A / cm 2 , electrolysis time 1 hour, successfully obtained cathode product (containing electrolyte) 50g; use 1% dilute hydrochloric acid to carry out post-treatment, remove electrolyte, dry, obtain high-purity vanadium-titanium alloy powder 26g, alloy purity can reach 99.9%, through particle size The analyzer can calculate the particle size distribution range D75: 10 μm, and then vacuum ball mill the titanium powder for 2 hours ...

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Abstract

The invention belongs to the field of non-ferrous metal metallurgy, and particularly relates to ultrafine titanium powder or titanium alloy powder and a preparation method thereof. The invention aimsto provide the preparation method of the ultrafine titanium powder or titanium alloy powder. The preparation method comprises the following steps of (A) using chlorine salt as a fused salt system, andadding titanium metal or titanium alloy and TiCl4 to fused salt for reaction, so that electrolyte containing titanium ions or titanium alloy ions is obtained; (B) using pure titanium or titanium alloy as an anode and graphite or stainless steel as a cathode, putting the anode and the cathode in the electrolyte of the step (A) for electrolysis, and pickling, drying and ball-milling cathode products, so that the ultrafine titanium powder or titanium alloy powder is obtained. According to the preparation method, the fused salt electrolysis is controlled, and vacuum or inert atmosphere ball-milling treatment is matched, so that the ultrafine titanium powder or titanium alloy powder of which the granularity is 0.01 to 10 mum can be obtained, and the purity can reach more than 99.9%.

Description

technical field [0001] The invention belongs to the field of nonferrous metal smelting, and in particular relates to an ultrafine titanium powder or titanium alloy powder and a preparation method thereof. Background technique [0002] With the rise of the titanium industry, ultra-fine titanium powder or titanium alloy powder has begun to receive attention. Ultrafine titanium powder or titanium alloy powder has the characteristics of wear resistance, corrosion resistance, self-cleaning, anti-ultraviolet and odor elimination, etc., and is mainly used in coatings, coatings and other fields. [0003] At present, there are few processes for preparing ultra-fine titanium powder or titanium alloy powder, and no industrialization has been formed. With the development of molten salt electrolysis, the electrolysis of elemental metal and alloy metal technology is gradually industrialized, such as sponge titanium refining to prepare high-purity titanium powder, MER process, copper allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/04B22F9/04
CPCC25C5/04B22F9/04B22F2009/043
Inventor 赵三超
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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