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Silicon-aluminum polymeric material and preparation thereof

A technology of polymeric materials and silicon-aluminum, which is applied in the field of silicon-aluminum polymer materials and the preparation of silicon-aluminum polymer materials, can solve the problems of high cost of raw materials for silicon-aluminum polymer materials, and achieve the goal of increasing added value, low resource and energy consumption, and convenient source of raw materials Effect

Inactive Publication Date: 2009-04-22
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the preparation of silicon-aluminum polymer materials with the above two raw materials has the disadvantage of high raw material cost

Method used

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  • Silicon-aluminum polymeric material and preparation thereof
  • Silicon-aluminum polymeric material and preparation thereof
  • Silicon-aluminum polymeric material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The bauxite tailings are ground in a ball mill, passed through an 80 μm sieve, and the sieved residue is less than 10.0%, and the obtained powder A-1.

[0020] The bauxite tailings were calcined at 800°C for 1.0, 1.5 and 2.0 hours respectively, and after naturally cooling down to room temperature, they were taken out and ground in a ball mill, passed through an 80 μm sieve, and the sieve residue was less than 10.0%, respectively to obtain powder A-2 , Powder A-3 and Powder A-4.

[0021] In order to verify the activity of the calcined bauxite tailings powder in this example, 85% by weight of powder A-1, powder A-2, powder A-3, and powder A-4 were used as raw materials, respectively mixed with 15% by weight of over 80 μm sieve residue is less than 10.0% of the slag powder, when the water-cement ratio is 0.45, the mortar ratio is 1:2.5 and the water glass content is 60% by weight (the water glass addition is based on its share of bauxite powder and slag powder Based on th...

Embodiment 2

[0027] Add lime which accounts for 1% of the weight of the bauxite dressing tailings to the bauxite dressing tailings, and calcinate them at 800°C, 850°C, 900°C, 950°C and 1000°C for 1.5 hours, and cool down to room temperature naturally , take out and grind in a ball mill, pass through an 80 μm sieve, and the sieve residue is within the range of 10.0%, to obtain powder B-1, powder B-2, powder B-3, powder B-4 and powder B-5.

[0028] Using 75% by weight of powder B-1, powder B-2, powder B-3, powder B-4, and powder B-5 as raw materials, respectively mixed with 25% by weight of slag powder with a residue of less than 10.0% after passing through an 80 μm sieve , prepare silica-alumina polymer mortar under the condition that the water-cement ratio is 0.45, the cementitious sand ratio is 1:2.5 and the water glass dosage is 70% by weight (the water glass addition is based on the total weight of the above-mentioned powder), and with reference to The national standard GB / T17671-1999 s...

Embodiment 3

[0033] Add 20% of the weight of fly ash to the bauxite dressing tailings, calcinate at 850°C for 5 hours, cool down to room temperature naturally, take it out and grind it in a ball mill, pass through an 80μm sieve, and the sieve residue is less than 10.0% , to obtain powder.

[0034] Take 60 kg of the above-prepared powder and 40 kg of slag powder, and mix them uniformly to obtain powder C-1. Take 70 kg of the above-prepared powder and 30 kg of slag powder, and mix them uniformly to obtain powder C-2. Take 80 kg of the above-prepared powder and 20 kg of slag powder, and mix them uniformly to obtain powder C-3. Take 90 kg of the above-prepared powder and 10 kg of slag powder, and mix them uniformly to obtain powder C-4. Among them, the residue of slag powder passing through 80 μm sieve is less than 10.0%. Under the condition that the amount of water glass is 50% by weight (the amount of water glass added is based on the weight of the above-mentioned powder), the water-cemen...

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Abstract

The invention discloses a silicon-aluminum polymeric material, which comprises 60 to 90 weight percent of calcined bauxite tailing powder, 40 to 10 weight percent of slag powder, and 20 to 80 percent of water glass of the total weight of calcined bauxite tailing and slag. The invention also discloses a preparation method for the material, which comprises the following steps: a. calcining the bauxite tailing, and grinding the calcined bauxite tailing to obtain the calcined bauxite tailing powder; b. mixing 40 to 10 weight percent of the slag powder and 60 to 90 weight percent of the calcined bauxite tailing powder evenly, and preparing powder material; and c. adding 20 to 80 percent of the water glass of the weight of the powder material in step b, and preparing the silicon-aluminum polymeric material, wherein the calcining temperature is between 800 and 1,000 DEG C, and the calcining time is between 0.5 and 10 hours. The material has the advantages of excellent mechanical performance, chemical corrosion resistance and volume stability; and the preparation method is simple, uses industrial wastes as raw materials, has low cost, not only can solve stockpiling problem of wastes, but also achieves comprehensive utilization of resources.

Description

technical field [0001] The invention relates to a building material, in particular to a silicon-aluminum polymer material, and also relates to a preparation method of the silicon-aluminum polymer material. Background technique [0002] In the field of material technology development, the development of materials and preparation technologies with low energy resource consumption, low environmental load, and significant energy-saving and emission-reduction effects has attracted much attention. Silica-alumina polymer materials mainly composed of geopolymer cement and alkali-activated cement are such materials with low energy resources and environmental load. Compared with Portland cement, this material has the characteristics of using industrial waste and low synthesis temperature in the preparation process, and has strong advantages in performance. special advantage. Therefore, domestic and foreign are currently keen on the research and development of new technologies for sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/12
CPCC04B2111/20C04B28/006C04B28/26Y02P40/10Y02W30/91C04B12/04C04B18/12C04B18/142C04B22/064C04B40/0032C04B40/0082C04B18/08C04B12/005
Inventor 鹿中科叶家元刘辉张文生张卫东
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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