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Method for preparing titanium and titanium obtained by the method

A technology of metal titanium and titanium raw materials, applied in the preparation of metal titanium, in the field of metal titanium, can solve the problems of limited gas diffusion, complex process, and difficult to achieve stable electrolysis, etc., to achieve uniform anode components, simple process, and stable electrolysis process Effect

Active Publication Date: 2013-04-10
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

[0008] In order to overcome the defects of complex process, limited gas diffusion, easy to cause anode polarization, and difficult to realize stable electrolysis when the existing method is used to prepare titanium metal, the present invention provides a simple process, and the gas can be easily diffused. , a method for preparing metal titanium that is not easily polarized and electrolytically stable, and metal titanium prepared by the method

Method used

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Examples

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preparation example Construction

[0017] The preparation method of metal titanium provided by the invention comprises the following steps:

[0018] (1) contacting the molten titanium-containing raw material with a carbonaceous reducing agent under conditions such that titanium dioxide in the titanium-containing raw material is reduced to low-valent titanium, and a molten titanium slag containing low-valent titanium reduction product is obtained;

[0019] (2) cooling and molding the reduced product titanium slag containing low-valent titanium in the molten state obtained in step (1) to obtain a titanium-containing material with a porous structure; the average pore diameter of the titanium-containing material with a porous structure is 1mm- 10mm, preferably 3mm-7mm; porosity 20%-60%, preferably 40%-60%;

[0020] (3) The titanium-containing material obtained in step (2) is used as an anode, the metal is used as a cathode, and the molten salt is used as an electrolyte, and electrolysis is performed under electroly...

Embodiment 1

[0038] This example is used to illustrate the preparation of the titanium metal element provided by the present invention.

[0039] With 100g molten Panzhihua titanium concentrate (wherein, TiO 2 The content is 47.5% by weight, Fe 2 o 3 The content of FeO is 5.74% by weight, the content of FeO is 34.48% by weight, the content of CaO is 1.42% by weight, the content of MgO is 6.22% by weight) and 14g of anthracite (wherein, the content of carbon is 78.5% by weight) is added in the electric furnace, Smelting for 5 hours at a temperature of 1750° C. and a pressure of -50 Pa (absolute pressure) to obtain molten titanium slag. The above molten titanium slag was injected into a Φ400×600 cast steel mold, cooled and formed to obtain a titanium-containing material with a porous structure, wherein the average pore diameter of the titanium-containing material was 5.75mm, and the porosity was 45%. The titanium-containing material is used as the anode, the Φ80×600 carbon steel rod is use...

Embodiment 2

[0041] This example is used to illustrate the preparation of the titanium metal element provided by the present invention.

[0042] With 60g molten Panzhihua titanium concentrate (wherein, TiO 2 The content is 47.5% by weight, Fe 2 o 3 The content of FeO is 5.74% by weight, the content of FeO is 34.48% by weight, the content of CaO is 1.42% by weight, and the content of MgO is 6.22% by weight), 40g of Yunnan titanium concentrate (wherein, TiO 2 The content is 49.85% by weight, Fe 2 o 3 The content of FeO is 9.68% by weight, the content of FeO is 36.50% by weight, the content of CaO is 0.24% by weight, and the content of MgO is 1.99% by weight) and 20g of anthracite (wherein, the content of carbon is 78.5% by weight) is added to the electric furnace, Smelting for 3 hours under the conditions of a temperature of 1650° C. and a pressure of 50 Pa (absolute pressure) to obtain molten titanium slag. The above-mentioned titanium slag was injected into a Φ300×600 cast steel mold,...

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Abstract

The present invention discloses a method for preparing titanium, wherein the method comprises the following steps: (1) contacting a titanium-containing raw material of molten state and a carbonaceous reducing agent so that titanium dioxide in the titanium-containing raw material is reduced to low-valent titanium and the reduction product titanium slag of the molten state containing low-valent titanium is obtained; (2) cooling and molding the reduction product titanium slag of the molten state containing low-valent titanium from the step (1)to obtain a titanium-containing material with a porous structure, wherein the average hole diameter of the titanium-containing material with the porous structure is 1-10 mm and the porosity is 20-60%; and (3) electrolyzing by taking the titanium-containing material from the step (2) as an anode, the metal as a cathode, and the molten salt as electrolyte under the condition of electrolysis to get metallic elemental titanium. The method provided by the invention is simple in process, low in anode resistivity, difficult to polarization, easy to electrolyze, and high in purity of the final cathode product of titanium metal.

Description

technical field [0001] The invention relates to a method for preparing metallic titanium and metallic titanium obtained by the method. Background technique [0002] Titanium and titanium alloys have a series of advantages such as low density, high specific strength, good heat and low temperature resistance, good corrosion resistance, and excellent biocompatibility. Therefore, they have "future metals", "space metals" and "ocean metals". reputation. [0003] Titanium is a rare metal, however, in fact, the abundance of titanium element in the earth's crust occupies the seventh place (0.45% by weight), which is much higher than that of many common metals. However, due to the active nature of titanium and high requirements for smelting technology, people cannot produce a large amount of titanium, so it is classified as a "rare" metal. At present, the only industrial production method of titanium metal in the world is the Kroll method, which includes the main processes of makin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/26
CPCC25C3/28C22B34/1281
Inventor 周玉昌穆天柱闫蓓蕾赵三超杨仰军
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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