Process of synthesizing high purity iolite material with industrial sludge from aluminium section plant

A pure cordierite and industrial sludge technology is applied in the field of synthesizing high-purity cordierite materials from industrial sludge in aluminum profile factories, which can solve the problems of low cordierite content and high raw material cost, and achieve high activity, low raw material cost, and low raw material cost. The effect of innovation

Inactive Publication Date: 2005-04-27
FUZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the defects of high raw material cost and low cordierite content in the synthetic material existing in the prior art, and provides a kind of high-purity cordierite synthesized from industrial sludge of an aluminum profile factory with low raw material cost and high content of synthesized cordierite material method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Use aluminum profile factory industrial sludge, talcum powder and clay as raw materials, without adding TiO 2 Mineralizer, its formula is as follows:

[0015] Aluminum plant industrial sludge: 49%

[0016] Talc: 24%

[0017] Clay: 27%

Embodiment 2

[0019] Use aluminum profile factory industrial sludge, talcum powder and clay as raw materials, add 1.5% TiO 2 Mineralizer, its formula is as follows:

[0020] Aluminum plant industrial sludge: 48%

[0021] Talc: 24%

[0022] Clay: 26.5%

[0023] TiO 2 : 1.5%

Embodiment 3

[0025] Using aluminum plant industrial sludge, talcum powder and clay as raw materials, adding 1.5% TiO 2 Mineralizer, its formula is as follows:

[0026] Aluminum plant industrial sludge: 48%

[0027] Talc: 24%

[0028] Clay: 25%

[0029] TiO 2 : 3%

[0030] The preparation method of the above-mentioned embodiment: mix the raw materials, grind them in a ball mill for 15 hours, dehydrate the grinding materials through pressure filtration, control the water content to 20%, and extrude them into strip-shaped blanks after vacuum refining. After drying at 80°C for 12 hours, the green body was calcined in a high-temperature furnace at 1350°C, kept for 5 hours, and cooled to room temperature naturally. The synthetic material is crushed and ground into two kinds of particle size products, coarse particle size product: 8-22 mesh; fine particle size product: 180-320 mesh. Cordierite content in the synthetic material: the cordierite content of...

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Abstract

The present invention is process of synthesizing high purity iolite material with industrial sludge from aluminum section plant. The materials include industrial sludge from aluminum plant 48-50 wt%, talcum powder 24-25 wt%, clay 25-27 wt% and TiO2 0-3 wt%; and the synthesized product has iolite content over 95 % and mullite content of 0.5-5 wt%. The present invention uses the sludge from aluminum plant with large surface area and high activity favorable to solid phase reaction and sintering as main material, and has high economic utility and social utility.

Description

Technical field: [0001] The invention relates to a method for synthesizing high-purity cordierite material with industrial sludge from an aluminum profile factory. Background technique: [0002] Cordierite material has a small expansion coefficient and good thermal stability, and can be used as raw materials for special refractory materials, foam ceramics, and catalyst carriers. The conventional method is to use industrial alumina, talc and clay as raw materials. The cost of raw materials is high, the processing fineness of raw materials is not enough, and the solid phase reaction is incomplete, so that the cordierite content of the synthetic material is less than 95%. It is difficult to reach more than 95%, so that the scope of use of synthetic materials is limited. Invention content: [0003] The invention solves the defects of high raw material cost and low cordierite content in the synthetic material existing in the prior art, and provides a kind of high-purity cordie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C04B14/04C04B14/10C04B18/14
CPCY02W30/91
Inventor 吴任平阮玉忠吴敏生于岩陈小娟
Owner FUZHOU UNIV
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