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Preparation method of modified red mud alkali-resistant glass fiber

A technology of alkali-resistant glass fiber and red mud, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems such as the decrease in strength of glass fiber and cement composite materials, achieve economic development and environmental protection, excellent alkali resistance, raw materials Source-rich effects

Inactive Publication Date: 2019-06-28
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The theory of the coexistence of chemical corrosion and mechanical damage holds that the OH produced by cement during hydration - The erosion of glass fibers and the growth of crystals generated by hydration around or on the surface of glass fibers cause the expansion of microcracks on the surface of the fibers, resulting in a decrease in the strength of glass fiber and cement composites

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of modified red mud alkali-resistant glass fiber and the prepared alkali-resistant glass fiber, the ingredients are as follows:

[0033] In parts by weight, the components and dosage of the glass fiber batch (100 parts in total) are: red mud 20.7, SiO 2 59.3, Al 2 o 3 8.5, Na 2 O 0.7, CaO 6.5, MgO 4.2, TiO 2 0.1.

[0034] The experimental steps are: 1) Raw material pretreatment: Put the red mud into a high-temperature furnace and treat it at 650°C for 130 minutes to remove moisture and other impurities in the ingredients, then grind and pass through a 200-mesh sieve to make the final product The particle size and composition of the red mud are uniform and stable.

[0035] 2) Mixing: According to the ratio of raw materials, weigh each raw material and mix them evenly. The mixing time is 25 minutes.

[0036] 3) Melting: Melt the uniformly mixed batch at 1515°C and keep it warm for 120 minutes to obtain a uniform glass melt.

[0037] 4) Drawin...

Embodiment 2

[0039] A preparation method of modified red mud alkali-resistant glass fiber and the prepared alkali-resistant glass fiber, the ingredients are as follows:

[0040] In parts by weight, the components and dosage of the glass fiber batch (based on the total amount of 100 parts) are: red mud 18.7, SiO 2 57.3, Al 2 o 3 11.7, Na 2 O 0.6, CaO 7.8, MgO 3.8, TiO 2 0.1.

[0041] The experimental steps are: 1) Raw material pretreatment: Put the red mud into a high-temperature furnace and treat it at 630°C for 150 minutes to remove moisture and other impurities in the ingredients, then grind and pass through a 200-mesh sieve to make the final product The particle size and composition of the red mud are uniform and stable.

[0042] 2) Mixing: According to the ratio of raw materials, weigh each raw material and mix them evenly. The mixing time is 30 minutes.

[0043] 3) Melting: Melt the uniformly mixed batch at 1510°C and keep it warm for 130 minutes to obtain a uniform glass melt...

Embodiment 3

[0046] A preparation method of modified red mud alkali-resistant glass fiber and the prepared alkali-resistant glass fiber, the ingredients are as follows:

[0047] In parts by weight, the components and dosage of the glass fiber batch (100 parts in total) are: red mud 19.4, SiO 2 60.1, Al 2 o 3 9.9, Na 2 O 0.5, CaO 6.1, MgO 3.9, TiO 2 0.1.

[0048] The experimental steps are: 1) Raw material pretreatment: Put the red mud into a high-temperature furnace and treat it at 640°C for 140 minutes to remove moisture and other impurities in the ingredients, then grind and pass through a 200-mesh sieve to make the final product The particle size and composition of the red mud are uniform and stable.

[0049] 2) Mixing: According to the ratio of raw materials, weigh each raw material and mix them evenly. The mixing time is 27 minutes.

[0050] 3) Melting: Melt the uniformly mixed batch at 1517°C and keep it warm for 125 minutes to obtain a uniform glass melt.

[0051] 4) Drawin...

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Abstract

The invention relates to a preparation method of modified red mud alkali-resistant glass fiber. The invention aims at providing the alkali-resistant glass fiber preparation method which is efficient,rapid and economical in experimental design and achieves large amount of resource utilization of industrial waste red mud. According to the scheme, the industrial waste red mud is pretreated, so thatthe red mud uniform in granularity and composition is obtained; the red mud obtained after pretreatment is mixed with other oxide raw materials to obtain raw materials uniform in composition; the rawmaterials are heated and melted into molten glass in a high temperature furnace; glass fibers uniform in thickness are obtained by drawing the molten glass through a bushing plate. The method has theadvantages that a new idea is provided for treatment of the red mud, the experimental efficiency is improved, and meanwhile the comprehensive utilization rate of the red mud is improved; the additional value of products is increased, and the two-way benefits of economic development and environmental protection can be achieved.

Description

technical field [0001] The invention relates to a method for preparing modified red mud alkali-resistant glass fiber. The glass fiber raw material uses a large amount of waste red mud produced in the process of industrial aluminum production, and the experimental design is efficient, fast and economical. The purpose is to improve the red mud The comprehensive utilization rate reduces the pollution and waste of resources caused by the massive accumulation of red mud, and at the same time improves the experimental efficiency, and prepares glass fibers with excellent corrosion resistance. Background technique [0002] Red mud is the waste residue produced during the industrial production of alumina. It has complex composition and properties, strong alkalinity, rich metal oxide content, especially high content of iron element and so on. The main component of red mud contains SiO 2 、Al 2 o 3 and Fe 2 o 3 Etc., every ton of alumina produced will produce 0.8~1.5 tons of red mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/02C03B37/022C03C1/00
Inventor 岳云龙赵继玲康俊峰屈雅陈俊竹石庆顺张路路
Owner UNIV OF JINAN