Device and method for preparing pure titanium with liquid alloys as electrodes

A liquid alloy and pure titanium technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of high environmental pollution, high production cost of metal titanium, and restrictions on the application of metal titanium, and achieve the goal of shortening the process flow and reducing energy consumption Effect

Pending Publication Date: 2017-12-15
张龙
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Problems solved by technology

Since the beginning of industrialized production of titanium metal in the 1940s, human beings have been facing the problems of intermittent production, high energy consumption, and large environmental pollution in the titanium production process. These problems directly lead to high production costs of titanium metal, and also limit the wider application

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  • Device and method for preparing pure titanium with liquid alloys as electrodes

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Embodiment 1

[0033] (1) First, in the first electrolyzer, select Na 2 O-SiO 2 -TiO 2 Melt as electrolyte, TiO added in molten salt 2 As raw material, choose CaCl 2 As a transition anode, graphite is used as an inert anode, and Ti-Cu alloy is used as the cathode of the first electrolytic cell;

[0034] (2) After the start of electrolysis, Na 2 O-SiO 2 -TiO 2 The Ti element in the melt will continuously discharge at the cathode and enter the Ti-Cu liquid cathode;

[0035] (3) Na 2 O-SiO 2 -TiO 2 Oxygen in the element will pass through the CaCl 2 The transition cathode reaches the surface of the graphite anode, loses electrons, and is oxidized to O 2 , while further reacting to produce CO x ;

[0036] (4) As the electrolysis continues, the titanium element entering the Ti-Cu liquid cathode continues to increase, and the liquid Ti-Cu alloy flows into the second electrolytic cell and is used as the anode of the second electrolytic cell;

[0037] (5) In the second electrolytic cell...

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Abstract

The invention provides a device and method for preparing pure titanium with liquid alloys as electrodes. The device comprises a first electrolysis cell, a second electrolysis cell and a bottom liquid alloy communicating hole; the first electrolysis cell comprises a CaCl2 transition anode, a Na2O-SiO2-TiO2 melt and a cathode Ti-Cu liquid alloy; the second electrolysis cell comprises an anode Ti-Cu alloy and a NaCl-KCl-TiClx melt; and the cathode Ti-Cu liquid alloy and the anode Ti-Cu alloy are connected through the bottom liquid alloy communicating hole. According to the device and method for preparing the pure titanium with the liquid alloys as the electrodes, oxygen and titanium elements in raw material TiO2 are separated, and after a titanium alloy is obtained, the titanium alloy can serve as an anode to perform electrolytic refining to obtain the pure titanium; and the process procedure is shortened, the energy consumption is reduced to the maximum extent, and it is achieved that the pure titanium is prepared in a molten salt electrolysis manner of industrialized and continuous production.

Description

technical field [0001] The invention belongs to the technical field of producing metallic pure titanium by molten salt electrolysis, and in particular relates to a device and method for preparing pure titanium by using liquid alloy as an electrode. Background technique [0002] Metal titanium has low density, high melting point, excellent electrical conductivity and biocompatibility with human body. However, such a metal material with excellent properties is relatively expensive due to problems in the production process. In the distribution of element content in the earth's crust, the content of titanium element is much higher than that of zinc, chromium, copper and other elements. Since the beginning of industrialized production of titanium metal in the 1940s, human beings have been facing the problems of intermittent production, high energy consumption, and large environmental pollution in the titanium production process. These problems directly lead to high production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/28C25C7/02
CPCC25C3/28C25C7/025
Inventor 张龙
Owner 张龙
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