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Direct titanium alloy producing process with titanium containing mineral

A technology of titanium minerals and titanium alloys, applied in the field of metal titanium metallurgy, can solve the problems of complex titanium metal process, low productivity, high processing and production costs, and achieve the effects of shortening the process cycle, avoiding pollution, and reducing production costs

Inactive Publication Date: 2007-01-03
INST OF PROCESS ENG CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

The main reason is that the current extraction process of titanium metal is complicated, the process flow is long, and the productivity is extremely low, which leads to high processing and production costs of titanium, which greatly limits the application range of titanium metal and its alloys

Method used

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  • Direct titanium alloy producing process with titanium containing mineral
  • Direct titanium alloy producing process with titanium containing mineral
  • Direct titanium alloy producing process with titanium containing mineral

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Experimental program
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Embodiment Construction

[0019] 1. Production of titanium-aluminum alloy with Guangxi ilmenite placer as raw material

[0020] Guangxi ilmenite placer, its main chemical composition is TiO 2 (50.94%), FeO (28.61%), Fe 2 o 3 (16.68%), in addition to containing a small amount of SiO 2 , Al 2 o 3 , P 2 o 5 , MgO, MnO, CaO, etc. Firstly, in a submerged-thermal electric arc furnace, at a high temperature of 1600-1800°C, petroleum coke is used as a reducing agent for reduction, and the reaction product Fe is separated to obtain high-titanium slag. Fully mix high-titanium slag, Al powder and CaO, and react in a transferred arc plasma heating furnace to generate Ti and Al 2 o 3 , separation of CaO-Al 2 o 3 slag to obtain titanium aluminum alloy. Then the electroslag remelting method is used to remove the impurity elements in the titanium-aluminum alloy to obtain the finished titanium alloy.

[0021] 2. Using rutile ore to produce titanium-aluminum alloy

[0022] The main chemical composition of ...

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Abstract

The present invention is direct titanium alloy producing process with titanium containing mineral and belongs to the field of metal titanium smelting technology. The production process includes: arc furnace melting titanium-containing mineral with added reductant to obtain high titanium slag; setting the high titanium slag, rutile or titanium white into plasma high temperature furnace and introducing argon as plasma gas source and electrolytic aluminum to reduce titania to obtain Ti-Al alloy mother liquid, adding slagging agent with the calcium fluoride to adsorb produced alumina to obtain solid crude Ti-Al alloy; making the crude Ti-Al alloy with deoxidant into consumable electrode and electroslag remelting in a vacuum electric furnace to obtain Ti-Al alloy product with oxygen content of 0.05-0.15 wt%. Compared with traditional process, the process of the present invention has short production period, low production cost, less environmental pollution and other advantages.

Description

1. Technical field [0001] The invention belongs to the field of metal titanium metallurgy and relates to a method for directly preparing metal titanium and titanium alloys by using titanium-containing minerals. 2. Technical Background [0002] Titanium is an important structural metal developed in the 1950s. Titanium alloys are widely used in aerospace because of their high strength, low density, good corrosion resistance, and high heat resistance. They are good structural and functional materials. , medical equipment, chemical equipment, military and sports equipment and other fields. Many countries in the world have recognized the importance of titanium alloy materials, have successively carried out research and development on them, and obtained practical applications. If the current production process of sponge titanium can be changed, it is expected that titanium and titanium alloys will be greatly developed in the 21st century. . [0003] The production of titanium al...

Claims

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Application Information

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IPC IPC(8): C22B34/12C22B5/04C22B9/18
Inventor 袁章福王晓强谭强强李建强关璐
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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