Electroanalysis eutectrol process for producing alloy of aluminum and titanium

A technology of aluminum-titanium alloy and eutectoid method, which is applied in the production field of aluminum-titanium alloy, can solve the problems of difficult management, poor stability of the electrolytic cell, and decline in economic benefits, and achieve stable application, reduced current efficiency, and protection of the bottom of the furnace Effect

Active Publication Date: 2007-12-26
SHANDONG NANSHAN ALUMINUM
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Problems solved by technology

[0002] With the increase in the production of aluminum alloys and the rise in the price of metal titanium, the advantages of the electrolytic eutectoid method for the production of aluminum-titanium master alloys have emerged. However, the existing electrolytic eutectoid method is used to produce aluminum-titanium alloys, and the aluminum in the electrolytic cell The generated titanium content is as high as 1% or more, and the stability of the electrolytic cell is poor, and the current efficiency and economic benefit are low
If it is applied to a 300KA level electrolyzer, because the management of the 300KA level is more difficult, it will cause a significant decline in economic benefits. The traditional electrolytic eutectoid method to produce aluminum-titanium alloys limits the application of this method to 300KA level large prebaked tanks

Method used

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Embodiment 1

[0015] A method for producing aluminum-titanium alloy by electrolytic eutectic method, which is realized according to the following operation process

[0016] Add titanium dioxide from the feed port of the electrolytic tank 4 times a day, take samples for analysis after 2 hours, and release the aluminum ingredients. When the electrolytic eutectoid aluminum-titanium alloy runs for about 4 months, carry out process rotation, that is, stop adding titanium dioxide to the titanium-containing tank , to reduce the titanium content of the tank, and replace it with other tanks at the same time, the titanium content in the aluminum in the electrolytic tank is 0.4%.

Embodiment 2

[0018] This embodiment is a method for producing aluminum-titanium alloy by electrolytic eutectoid method. Titanium dioxide is added from the discharge port of the electrolytic cell 3 times a day, and samples are taken for analysis after 3 hours, and aluminum ingredients are discharged. When the electrolytic eutectoid aluminum-titanium alloy runs for about 5 In one month, carry out process rotation, namely stop adding titanium dioxide to the titanium-containing tank, so that the titanium content of the tank decreases, and replace it with other tanks at the same time. The titanium content in the aluminum in the electrolytic tank is 0.5%.

Embodiment 3

[0020] This embodiment is a method for producing aluminum-titanium alloy by electrolytic eutectoid method. Titanium dioxide is added 5 times a day from the discharge port of the electrolytic cell, and samples are analyzed after 2.5 hours, and the aluminum ingredients are discharged. When the electrolytic eutectoid aluminum-titanium alloy runs for about 6 In one month, carry out process rotation, namely stop adding titanium dioxide to the titanium-containing tank, so that the titanium content of the tank decreases, and replace it with other tanks at the same time. The titanium content in the aluminum in the electrolytic tank is 0.6%.

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Abstract

This invention relates to a method for producing Al-Ti alloy by electrolytic coprecipitation. The method comprises: feeding TiO2 into an electrolytic bath from the feeding mouth 3-5 times each day, samplying and analyzing after 2-3 h, discharging Al, terminating TiO2 feeding to lower the content of Ti in the electrolytic bath when electrolytic coprecipitation is performed for 4-6 months, feeding TiO2 into another electrolytic bath, and controlling the content increase of TiO2 in the electrolytic bath match the content decrease of TiO2 in the first electrolytic bath to guarantee the supply of Al-Ti alloy. By the method, the electrolytic baths have stable running and no obvious decrease of current efficiency; the furnace bottom is protected. The method can be applied to 300 kA electrolytic bath stably and permanently.

Description

1. Technical field [0001] The invention relates to a production method of an aluminum-titanium alloy, in particular to a method for producing an aluminum-titanium alloy by electrolytic eutectic method on a 300KA level prebaking tank, and belongs to the technical field of production methods of an aluminum-titanium alloy. 2. Background technology [0002] With the increase in the production of aluminum alloys and the rise in the price of metal titanium, the advantages of the electrolytic eutectoid method for the production of aluminum-titanium master alloys have emerged. However, in the existing electrolytic eutectoid method for the production of aluminum-titanium alloys, the aluminum in the electrolytic cell The generated titanium content is as high as more than 1%, and the stability of the electrolytic cell is poor, and the current efficiency and economic benefit are low. If it is applied to a 300KA level electrolyzer, because the management of the 300KA level is more diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/36
Inventor 刘海石宋昌明王建军范钦杰
Owner SHANDONG NANSHAN ALUMINUM
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