Corundum material prepared from waste activated alumina and preparation method thereof

A technology of activated alumina and corundum, applied in the direction of solid waste removal, etc., to achieve the effect of risk-free investment, quick investment, and significant economic and social benefits

Inactive Publication Date: 2012-07-04
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is no domestic use of activated alumina to prepare α-Al 2 o 3 report on material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] α-Al Prepared from Waste Activated Alumina 2 o 3 The material steps are: put waste activated alumina in a sagger, place it in a kiln for calcination, the calcination temperature range is 1200°C, the calcination holding time is 3 hours, and the calcined material is cooled to room temperature to obtain white granular α-Al 2 o 3 material, its α-Al 2 o 3 The content is 91.5wt%.

Embodiment 2

[0016] α-Al Prepared from Waste Activated Alumina 2 o 3 The material steps are: put the waste activated alumina in a sagger, place it in a kiln for calcination, the calcination temperature range is 1300°C, the calcination holding time is 3 hours, and the calcined material is cooled to room temperature to obtain white granular α-Al 2 o 3 material, its α-Al 2 o 3 The content is 94wt%.

Embodiment 3

[0018] α-Al Prepared from Waste Activated Alumina 2 o 3 The material steps are: put waste activated alumina in a sagger, place it in a kiln for calcination, the calcination temperature range is 1400°C, the calcination holding time is 2 hours, and the calcined material is cooled to room temperature to obtain white granular α-Al 2 o 3 material, its α-Al 2 o 3 The content is 95wt.

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Abstract

The invention provides a corundum material prepared from waste activated alumina and a preparation method thereof. The raw material for preparing the corundum material from the waste activated alumina consists of waste activated alumina; the preparation method is realized by taking the waste activated alumina as the raw material. The corundum material is not only beneficial to waste utilization and overcomes the serious pollution of the waste activated alumina to the environment, but also produces products with high added value and a pollution-free high-quality refractory material, saves the production cost and has obvious economic benefits and popularization and application values.

Description

technical field [0001] The present invention relates to an ecological environment material, that is, the comprehensive utilization of solid waste, and more specifically to a method for preparing α-Al by using waste activated alumina 2 o 3 , namely α-Al 2 o 3 The method of preparation of the material. Background technique [0002] α-Al 2 o 3 The melting point of the material is as high as 2050°C. It has excellent properties such as high refractoriness, high hardness, wear resistance, good chemical stability, high strength, and good creep resistance. It is one of the most important raw materials in the refractory and ceramic industries. The conventional preparation method is to use industrial alumina as the main raw material, but the cost is high. Activated alumina is widely used as a catalyst, activator, adsorbent, desiccant, etc. in the petroleum industry and chemical industry. For example, about 80% of various hydrogenation and reforming reactions in the petroleum ind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00C04B35/10C04B35/622C04B35/66
Inventor 阮玉忠
Owner FUZHOU UNIV
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