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Production device and method of low-impurity titanium powder

A production method and technology of a production device are applied in the field of production devices of titanium powder with low impurity content

Inactive Publication Date: 2017-09-01
朝阳金达钛业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the above-mentioned method for preparing titanium powder has problems in quality, cost, particle shape, etc., how to reduce the production cost of titanium powder and control the impurity content in titanium powder has become the focus and difficulty of preparing titanium powder

Method used

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  • Production device and method of low-impurity titanium powder
  • Production device and method of low-impurity titanium powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare 10-50μm titanium powder with 99.7% impurity content

[0044] Put the clean and dry magnesium chloride block and magnesium ingot into the cleaned reactor, pressurize and check for leaks at 0.1MPa after assembly, and fill with argon to 0.05MPa after completion.

[0045] Heat the reactor to 850°C. After the magnesium chloride and magnesium are fully melted, the liquid magnesium and magnesium chloride will be separated. The magnesium chloride liquid is located at the bottom of the reactor. During the whole process, the pressure in the reactor is controlled within the range of 0.02-0.03MPa. Add titanium tetrachloride to the feeding pipe on the side wall of the reactor, titanium tetrachloride absorbs the heat in the reactor during the process of flowing through the feeding pipe and gasifies, and then feeds into the reactor from the bottom of the reactor. The feeding rate of titanium tetrachloride is 80kg / h. The liquid magnesium chloride that titanium tetrachloride con...

Embodiment 2

[0048] Prepare 100-200μm titanium powder with 99.5% impurity content

[0049] Put the clean and dry magnesium chloride block and magnesium ingot into the cleaned reactor, pressurize and check for leaks at 0.08MPa after assembly, and fill with argon to 0.03MPa after completion.

[0050] Heat the reactor to 780°C. After the magnesium chloride and magnesium are fully melted, the liquid magnesium and magnesium chloride will be separated, and the magnesium chloride liquid will be located at the bottom of the reactor. During the whole process, the pressure in the reactor will be controlled within the range of 0.005-0.01MPa. Add titanium tetrachloride to the feeding pipe on the side wall of the reactor, titanium tetrachloride absorbs the heat in the reactor during the process of flowing through the feeding pipe and gasifies, and then feeds into the reactor from the bottom of the reactor. The feeding rate of titanium tetrachloride is 150kg / h. The liquid magnesium chloride that titaniu...

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Abstract

The invention discloses a production device and method of low-impurity titanium powder. Raw materials are a magnesium ingot, magnesium chloride and titanium tetrachloride, and argon protection is adopted. Firstly, titanium tetrachloride is gasified and then subjected to a reaction at the interface of magnesium chloride and magnesium in a bubble form, and produced titanium powder particles do not make contact with liquid magnesium and are isolated by magnesium chloride. Magnesium and magnesium chloride are removed through vacuum distillation, the produced titanium powder particles are purified and then subjected to simple ball milling, picking and sieving under the protection of argon, and the low-impurity titanium powder can be obtained. No pollution is caused in the whole technological process, the content of impurities including oxygen, nitrogen, hydrogen, iron and the like in the titanium powder is low, the yield of a single furnace is high, the purity of titanium powder is high, and particles are uniform.

Description

technical field [0001] The invention belongs to the technical field of powder making in nonferrous metal smelting technology, and in particular relates to a production device and a production method for preparing titanium powder with low impurity content by using a magnesia thermal reduction method. Background technique [0002] Titanium and its alloys have excellent properties such as low density, high specific strength, good heat resistance, and corrosion resistance. They have broad application prospects in aerospace, shipbuilding technology, chemical industry, machinery manufacturing, and hard alloys. However, traditional titanium metallurgy has disadvantages such as long process cycle, high energy consumption, and low utilization rate, which lead to high cost and high price of titanium alloy, which limits its wide application. Therefore, reducing the cost of titanium and titanium alloys is an important way to further expand the application of titanium. [0003] The adva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/12B22F9/20
CPCC22B34/1272B22F9/20
Inventor 胥永刘振宝王继宪赵春雷景超曹万宝
Owner 朝阳金达钛业股份有限公司