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Technology for producing aluminum alloy in aluminum electrolysis cell from aluminum reduction alloy oxide

An aluminum electrolytic cell and a technology for producing alloys are applied in the field of producing alloy aluminum to achieve the effects of good quality, flexible production organization and fast integration

Inactive Publication Date: 2016-05-25
周俊和 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention overcomes the technical difficulties and technical defects in the above two methods, and can realize fusion production of aluminum alloys in modern large-scale prebaking electrolytic cells, and can also produce aluminum alloys in self-baking cells without affecting the electrolytic cell Work stability, ease of control, flexible organization and production of various grades, types, batches of high-quality aluminum alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A process for producing alloyed aluminum in an aluminum electrolytic cell by using aluminum to reduce alloy oxides. During the production of aluminum electrolysis, the required alloying elements are added to the aluminum liquid in the aluminum electrolytic cell through the dielectric layer. Oxides, the oxides of alloying elements obtain the simple substance of the alloying element under the action of aluminum reduction, and the simple substance of the alloying element is uniformly dispersed in the aluminum liquid under the high temperature of the aluminum liquid and the external magnetic stirring, and the aluminum liquid is taken out. Alloy aluminum is obtained after cooling.

[0031] The alloying elements are one or more than one.

[0032] The alloying element is an alloying element whose oxidizing property is stronger than that of aluminum.

[0033] The specific process includes the following steps:

[0034] (1) Take the aluminum liquid test during the...

Embodiment 2

[0042] Embodiment 2: a process for producing alloyed aluminum in an aluminum electrolytic cell by using aluminum to reduce alloy oxides, the alloyed aluminum is an aluminum-copper alloy, and the production method includes the following steps:

[0043] (1) electrolyze aluminum in the pre-baked tank, take the aluminum liquid for testing in the aluminum electrolysis process, and calculate the required amount of copper oxide;

[0044] (2) Weigh the required amount of copper oxide, and put the obtained copper oxide directly through the dielectric layer into the molten aluminum through the fire port (aluminum reduces the copper ions in the copper oxide to elemental copper, and part of the aluminum is oxidized form alumina and settle to the bottom of the electrolytic cell), the elemental copper is melted under the high temperature of the molten aluminum and uniformly dispersed in the molten aluminum under the action of magnetic stirring;

[0045] (3) Control the temperature in the al...

Embodiment 3

[0046] Embodiment 3: a process of utilizing aluminum to reduce alloy oxides to produce alloyed aluminum in an aluminum electrolytic cell, the alloyed aluminum is an aluminum-copper-zinc alloy, and the production method comprises the following steps:

[0047] (1) electrolyze aluminum in a self-baking tank, take the aluminum liquid for testing in the aluminum electrolysis process, and calculate the required amounts of copper oxide and zinc oxide respectively;

[0048] (2) Weigh the required amounts of copper oxide and zinc oxide respectively, and pass the weighed copper oxide and zinc oxide through the dielectric layer through the anode opening (or a separate opening on the electrolytic cell) when the pole is changed. Add to the molten aluminum (aluminum reduces copper ions and zinc ions in copper oxide and zinc oxide to elemental copper and elemental zinc, respectively, and part of the aluminum is oxidized to aluminum oxide and settles to the bottom of the electrolytic cell), el...

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PUM

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Abstract

The invention discloses a technology for producing aluminum alloy in an aluminum electrolysis cell from an aluminum reduction alloy oxide. The technology comprises the steps that in the aluminum electrolysis production process, the oxide of needed alloy elements is added into an aluminum solution in the aluminum electrolysis cell by penetrating through a dielectric layer, the elementary substance of alloy elements is obtained from the oxide of the alloy elements under the reaction effect of aluminum, the alloy elements are evenly dispersed in the aluminum solution when the elementary substance of the alloy elements is affected by high temperature of the aluminum solution and the external magnetic force stirring effect, and the aluminum solution is taken out and then cooled to obtain the aluminum alloy. Technical difficulties and technological defects in the prior art are overcome, melting preparation can be carried out in both a modern large prebaked electrolysis cell and a self-braking cell, working stability and easy-controllability of the electrolysis cell are not affected, and high-quality aluminum alloy of various marks, varieties and batches can be flexibly organized and produced.

Description

technical field [0001] The invention relates to a process for producing alloy aluminum, in particular to a process for producing alloy aluminum in an aluminum electrolytic cell by using aluminum to reduce alloy oxides. Background technique [0002] The most important production method of modern aluminum alloy is fusion method, and part of it is produced by electrolysis method. The fusion method is to melt the aluminum ingot in a reverberatory furnace or an intermediate frequency electric furnace, and add various aluminum alloy fusion intermediates or various required metal elements according to the requirements of the required alloy aluminum composition. , generally for 2 to 8 hours, so that various alloying elements are integrated into the molten aluminum. The main disadvantages are: [0003] 1. The melting temperature is generally controlled at about 750 °C. The temperature is low, so that the alloy is not fully integrated into the molten aluminum, and the alloying elemen...

Claims

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Application Information

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IPC IPC(8): C25C3/36
CPCC25C3/36
Inventor 邹建明
Owner 周俊和