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Method for utilizing aluminium cinder as resource

A technology of aluminum slag ash and recycling, which is applied in the field of ceramic filter materials and can solve problems such as the inability to regenerate waste resources

Inactive Publication Date: 2005-12-28
SPIRE ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

[0005] However, the current manufacturing of ceramic filter materials all use brand-new aluminum raw materials, and it is not yet possible to use waste resources for regeneration

Method used

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  • Method for utilizing aluminium cinder as resource
  • Method for utilizing aluminium cinder as resource
  • Method for utilizing aluminium cinder as resource

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Embodiment Construction

[0028] refer to figure 1 , the basic steps of the present invention are:

[0029] a, using aluminum slag ash as raw material;

[0030] b. Perform high-temperature calcination and stabilization;

[0031] c. Raw materials for making refractory materials.

[0032] In the above steps, the aluminum slag ash is mainly calcined at high temperature in a high-temperature kiln (Calcination) to transform it into a material whose main component is alumina (the mineral crystal phase is corundum), which is used as a raw material for refractory materials. In calcination, aluminum nitride (AlN) and aluminum carbide (Al 4 C 3 ) will tend to be stable.

[0033] The aforementioned high-temperature calcination has a temperature range from 800°C to 1800°C.

[0034] The above-mentioned aluminum slag ash refers to the residue after sorting and recovering metal aluminum from aluminum smelting slag or the fine particles obtained from crushing and grinding process of aluminum smelting slag.

[0...

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Abstract

The present invention is a method for resource utilization of aluminum slag and ash, which is mainly to calcine the remaining aluminum slag ash waste after sorting and recovering metal aluminum from aluminum smelting slag to make raw material of refractory material, so as to achieve aluminum The purpose of recycling slag ash; in addition, the above raw materials are further ground, and ingredients are added to be fired into ceramic filter materials with high unit price. The invention not only solves the problem of aluminum slag ash treatment, but also effectively reduces waste of resources and energy in raw materials for manufacturing refractory materials and ceramic filter materials, and creates more economic value and social benefits.

Description

【Technical field】 [0001] The invention relates to a method of recycling aluminum slag ash to make refractory raw materials, and mixing the refractory raw materials with other raw materials to make ceramic filter materials. 【Background technique】 [0002] Aluminum is the most abundant metal element in the earth's crust. It is extremely active and does not exist in the state of metal in nature. It was not until the emergence of aluminum metal refining technology in the nineteenth century that the application of aluminum metal began gradually. It has become the second most used metal after iron, and it continues to increase. [0003] Aluminum is a highly active metal, so it is easy to produce oxidized dross during the aluminum smelting process in secondary aluminum plants; this kind of dross is called aluminum smelting slag after it is removed and cooled, or aluminum dross for short. During the process of aluminum smelting to remove aluminum slag, part of the metal aluminum wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00C04B35/10
Inventor 蔡顺元
Owner SPIRE ENVIRONMENTAL PROTECTION TECH
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