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Method for producing aluminate high-temperature adhesive by metal calcium residue

A technology of high temperature binder and metal calcium, which is applied in the field of high temperature binder production of aluminate from metal calcium slag, can solve the problems of ignorance of the application value of calcium slag, environmental pollution, etc., so as to save bauxite resources, save mine resources, The effect of saving a lot of energy

Active Publication Date: 2018-11-23
郑州海迈高温材料研究院有限公司
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Problems solved by technology

Since 2003, my country has carried out large-scale production of calcium metal. At the beginning, a large amount of calcium slag was piled up on the roadside or filled in ditches as garbage, causing serious environmental pollution.
In the later period, some people replaced part of the bauxite with calcium slag, and melted it with limestone or sintered at high temperature to produce pre-melted slag, which was used as an auxiliary material for steelmaking and metallurgy, and relieved the environmental pressure caused by calcium slag. However, some units still do not understand calcium slag. The application value is still treated as garbage, causing environmental pollution

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  • Method for producing aluminate high-temperature adhesive by metal calcium residue
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  • Method for producing aluminate high-temperature adhesive by metal calcium residue

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0024] The invention provides a method for producing aluminate high-temperature binder from metal calcium slag.

[0025] Such as figure 1 , figure 2 and image 3 As shown, the method firstly crushes calcium metal slag raw materials of different particle sizes, then adds alumina powder to the crushed calcium metal slag according to the grade of the high-temperature binder, and finally processes it through electrofusion or sintering process , after cooling, the high-temperature binder is obtained by crushing and grinding.

[0026] The main crystal phases of the high-temperature bond prepared by this method are calcium aluminate (CA) and calcium dialuminate (CA) 2 ), belongs to the high-temperature phase, and can be used as a high-temperature binder. A...

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Abstract

The invention provides a method for producing an aluminate high-temperature adhesive by metal calcium residue, and belongs to the technical field of preparation of novel materials. The method comprises the following steps of crushing the calcium residue with different granularity of 0 to 50mm, and compounding with a certain ratio of aluminum oxide powder according to the grade and designation of the high-temperature adhesive; electrically melting or sintering, cooling, crushing and grinding, so as to obtain the high-temperature adhesive. The method has the advantages that the metal calcium residue can be fully applied, about 50% of aluminum oxide powder and all limestone can be replaced, the waste comprehensive utilization effect is realized, and the national mine resource is saved.

Description

technical field [0001] The invention relates to the technical field of new material preparation, in particular to a method for producing an aluminate high-temperature binder from metal calcium slag. Background technique [0002] At present, my country's mineral resources have been exploited in large quantities for many years. The shortage of natural resources and mineral resources has become a "bottleneck" restricting sustainable development, and a large amount of industrial tailings are piled up in the open air, which not only causes serious waste of resources, but also pollutes the environment. In the face of the severe situation of rapid economic growth, shortage of resources and energy, and deterioration of the ecological environment, the efficient and comprehensive utilization of industrial waste residues is an important way to solve the shortage of resources in our country. [0003] Calcium metal is the main raw material of the metallurgical industry, with an annual ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/63C04B35/66
CPCC04B35/6303C04B35/66
Inventor 刘刚靳亲国张梅靳斐王勇
Owner 郑州海迈高温材料研究院有限公司
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