Method of producing aluminium titanium alloy using aluminium electrolytic tank

An aluminum electrolytic cell and aluminum-titanium alloy technology, which is applied in the field of aluminum-titanium alloy production with aluminum electrolytic cells, can solve the problems of low anode compressive strength, large anode resistance and high energy consumption, and achieve no segregation of chemical composition and uniform chemical composition. , high-quality effects

Active Publication Date: 2006-01-25
包头铝业有限公司
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Problems solved by technology

The disadvantage of this method is that the anode resistance is large, the energy consumption is high, due to the addition of titanium, the compressive strength of the anode is small, the quality of the anode is poor, the consumption increases, the production cost increases, and the content of titanium in the aluminum-titanium alloy is low.

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  • Method of producing aluminium titanium alloy using aluminium electrolytic tank

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Embodiment 1

[0013] Referring to the accompanying drawings, an aluminum electrolysis plant with an annual output of 36,500 tons has 100 aluminum electrolysis cells of 135KA. The plant plans to produce 3,650 tons of aluminum-titanium alloys with a titanium content of 2% per year, and 10 aluminum electrolytic cells can be selected for aluminum-titanium alloy production. The technical conditions of the selected 10 electrolytic cells are as follows: cell operating voltage 4.1-4.3V, electrolysis temperature 930-960°C, molten salt level 17-20cm, aluminum liquid level 18-24cm, molecular ratio 2.4-2.8. Add 35kg of titanium dioxide with a purity of 98% and 1910kg of alumina with a purity of 98% to each aluminum electrolytic cell every day, and each cell can produce 1 ton of aluminum-titanium alloy with a titanium content of 2% every day. The yield rate is above 98%. The aluminum-titanium alloy melt produced in the tank is sucked out by the aluminum suction bag every day, and transported to the cast...

Embodiment 2

[0015] An aluminum electrolysis plant with an annual output of 100,000 tons has 120 300KA aluminum electrolysis cells. The plant plans to produce 4,140 tons of aluminum-titanium alloy with a titanium content of 2.5% per year, and 5 aluminum electrolytic cells can be selected for aluminum-titanium alloy production. The technical conditions of the 5 selected electrolytic cells are as follows: cell operating voltage 4.1V-4.3V, electrolysis temperature 930°C-960°C, molten salt level 17-20cm, aluminum liquid level 18-24cm, molecular ratio 2.4-2.8. Add 95kg of titanium dioxide with a purity of 98% and 4380kg of alumina with a purity of 98.4% to each aluminum electrolytic cell every day, and each cell can produce 2270kg of aluminum-titanium alloy with a titanium content of 2.5% every day, and the actual harvest of titanium The rate is above 98%. The aluminum-titanium alloy melt produced in the tank is sucked out with the aluminum suction bag every day, and transported to the foundry...

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Abstract

The invention relates to a method to produce aluminum titanium alloy by using aluminum electro-bath. The feature is that the raw material is alumina and titanium dioxide, and the purity of alumina should over 98%, as well as titanium dioxide; selecting cryolite molten salt aluminum electro-bath; adding alumina and titanium dioxide into the electro-bath to liquating into the cryolite melt, and the consistency of alumina is 2-5%, the titanium dioxide is below 1%. Under the effect of DC, the metallic aluminum and metallic titanium would be separated out on the cathode of the electro-bath. The equal aluminum titanium alloy would be formed under the whisking of magnetic field force of electro-bath. Aluminum absorbing package would absorb the alloy out and cast into aluminum titanium alloy bullion. The advantage of the invention is low energy consumption, low cost, high content of titanium in the alloy that could reach 2.5% and the actual recycle ratio of titanium could reach 98%.

Description

technical field [0001] The invention relates to a method for producing an aluminum-titanium alloy by using an aluminum electrolytic cell, and belongs to the field of aluminum electrolysis production methods. Background technique [0002] The production of aluminum-titanium alloys generally adopts the fusion method in industry, that is, the metal aluminum and metal titanium are melted and mixed together in proportion, and then cast into aluminum-titanium alloys. This method consumes a lot of energy, costs high, and the yield of titanium is low, and the yield of titanium is only about 85%. At present, there is another method that is to add titanium dioxide to the anode ingredients to make a carbon anode. , Titanium dioxide enters the electrolyte with the consumption of the anode, and then undergoes electrolysis, and precipitates together with aluminum at the cathode to form an aluminum-titanium alloy. The titanium content in its alloy is up to 0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/36
Inventor 王云利赵洪生孙喜喜高喜柱董建雄高国平李生元赵亚平翟宝辰何建丽降虹焦木杰杨贵海周海兰
Owner 包头铝业有限公司
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