Method for producing metallic titanium

A technology of metal titanium and sponge metal, applied in the field of titanium metal production, can solve the problems of carbon pollution, low current efficiency, harsh raw material requirements, etc., and achieve the effect of high melting point and reduced electrolysis efficiency

Inactive Publication Date: 2011-03-30
程思邈
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Problems solved by technology

[0003] The present invention aims at the above problems and provides a method for producing sponge metal titanium; the method solves the problems of carbon pollution, low current efficiency and harsh requirements on raw materials in the FFC method

Method used

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Embodiment Construction

[0007] The method adopted in the present invention is: MgF at 1150° C. 2 -CaF 2 In the system, a voltage of 3.2V was applied, and electrolysis was performed for 2 hours. SEM and XRD analysis showed that metal titanium was formed.

[0008] Described electrolysis raw material is chemically pure TiO 2 (≥98.0%); electrolyte molten salt composition is 55.5wt% MgF 2 -44.5wt%CaF 2 . The solid oxygen permeable membrane is a commercially available yttria-stabilized zirconia tube ( ); the whole process is electrolysis under the protection of high-purity argon.

[0009] The heating device is an iron-chromium-aluminum tubular heating furnace; FP93 program temperature controller is used for temperature control; the DC power supply for electrolysis is "LUYANG" YB1720A type adjustable DC power supply.

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Abstract

The invention provides a method for producing metallic titanium, particularly a method for preparing sponge metallic titanium through directly electrolyzing and reducing TiO2 by using a SOM (Solid Oxygen-permeation Membrane). The method for producing the sponge metallic titanium solves the problems of carbon pollution, low current efficiency and strict requirement on raw materials in an FFC (Flexible Flat Cable) method. The method adopted by the invention comprises the steps of exerting 3.2V voltage in an MgF2-CaF2 system of 1150 DEG C, and displaying the generation of the sponge metallic titanium through SEM (Scanning Electron Microscope) and XRD (X-Ray Diffraction) analysis after the electrolysis is carried out for two hours.

Description

Technical field: [0001] The invention relates to a method for producing metallic titanium, more particularly, to a direct electrolytic reduction of TiO by utilizing a solid oxygen permeable membrane (SOM) 2 A method for preparing sponge metal titanium; the method solves the problems of carbon pollution, low current efficiency, strict requirements on raw materials and the like in the FFC method. Background technique: [0002] The traditional production method of titanium metal is the magnesium thermal method (Kroll method), which is complicated in process, high in cost, large in energy consumption and serious in pollution, resulting in the high price of titanium and titanium alloys. The success of aluminum and magnesium electrolysis has led people to imagine the continuous low-cost production of titanium metal by electrolysis, but it has not been successful. At present, the research hotspot on the electrolysis of titanium is the FFC method. The proposal of this method opens ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/28
Inventor 程思邈
Owner 程思邈
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