A method for preparing titanium metal by continuous molten salt electrolysis

A technology of molten salt electrolysis and titanium metal, which is applied in the field of continuous molten salt electrolysis to prepare titanium metal, can solve the problems of non-continuous production, long process flow, and many procedures, and achieve fast diffusion speed, high current efficiency, and accelerated deoxidation speed Effect

Inactive Publication Date: 2015-11-18
宝纳资源控股(集团)有限公司
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Problems solved by technology

[0003] In view of the above problems, the applicant, on the basis of further in-depth research on it, proposed a method for continuously preparing metal titanium through high-temperature molten salt electrolysis of titanium dioxide. This method can overcome the above problems, thereby solving the existing process in the prior art A series of problems such as long, many processes, high energy consumption, non-continuous production, and many impurities

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  • A method for preparing titanium metal by continuous molten salt electrolysis
  • A method for preparing titanium metal by continuous molten salt electrolysis

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Embodiment Construction

[0014] The titanium high-temperature electrolytic furnace system involved in the present invention mainly includes a high-temperature electrolytic furnace, a rectifier 20 , a transformer 21 , a conductive cross arm, a feeder 22 , and a tail gas treatment device 28 .

[0015] In this invention, the electrolysis chamber 25 mainly includes the molten pool 1, the heating element 2, the heat shield 3, the insulation cotton 4, the furnace shell 5 with the water cooling jacket and the furnace cover 6 with the water cooling jacket, wherein the electrolysis chamber 25 is Cuboid, 3m long, 1.5m wide, and 2m high. Refractory bricks 7 are laid on the bottom of the electrolytic chamber 25 . The molten pool 1 is rectangular, located in the center of the electrolysis chamber 25, made of graphite material, used as an electrolytic cell for high-temperature molten salt electrolysis, and also as a cathode for molten salt electrolysis during the electrolysis process. A heating element 2 is instal...

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Abstract

The invention provides a method for preparing metallic titanium through continuous fused-salt electrolysis. The method is characterized by comprising the following steps of: 1, pelleting titanium dioxide by directly using a pelleting machine to prepare titanium dioxide pellets; 2, adding the prepared titanium dioxide pellets into a melting bath; 3, during electrolysis, connecting the positive electrode of an electrolysis power supply with the anode of an electrolytic bath, and connecting the cathode of the electrolysis power supply with the melding bath, and after the electrolysis, carrying out a discharging process step; and 4, heating a flow guide tube during discharging, opening a ball valve to ensure that liquid titanium flows into a receiving crucible of a cooling chamber through the flow guide tube, closing the ball valve after discharging, cooling the product in the cooling chamber, and taking titanium ingots out of the cooling chamber by opening a door of the cooling chamber. By adopting the method, the electrolysis of titanium dioxide can be continuously carried out, so that the production cost of titanium can be greatly reduced.

Description

technical field [0001] The invention relates to a method for continuous electrolysis of titanium, in particular to a method for continuous molten salt electrolysis to prepare metallic titanium. Background technique [0002] Titanium and titanium alloys have excellent properties such as light specific gravity, high specific strength, good creep resistance at high temperature, and corrosion resistance. They are widely used as structural materials in aerospace, metallurgy, automobile and other industries, and can also be used as functional materials such as hydrogen storage materials, shape memory alloy materials, etc. At present, the production process of sponge titanium is the Kroll method, also known as the magnesium thermal reduction method. This method is to first prepare titanium tetrachloride from titanium-containing minerals, and then reduce titanium tetrachloride with magnesium to obtain sponge titanium. Vacuum consumable electric arc melting is used to make dense tit...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/28
Inventor 贾文成刘美凤沈博刘光宏
Owner 宝纳资源控股(集团)有限公司
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