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Microcrystalline glass and preparation method thereof

A technology of glass-ceramics and glass liquid, applied in the field of glass-ceramics and its preparation, can solve problems such as environmental pollution, and achieve the effects of high technical content, high added value, and high crystallization rate

Active Publication Date: 2013-07-31
承德华富玻璃技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a glass-ceramic and its preparation method. The glass-ceramic provided by the present invention utilizes vanadium-containing ferro-titanium tailings and fluorite tailings, and adds a small amount of dolomite and soda ash to prepare a comparative cast stone. Glass-ceramics that are more wear-resistant, acid-alkali-resistant, and impact-resistant solve the problems of environmental pollution and safety in existing mine tailings. At the same time, the prepared glass-ceramics have the advantages of high technical content and high added value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A glass-ceramic, the preparation raw materials are composed by weight: 50% of Chengde vanadium-containing ferro-titanium tailings, 20% of fluorite tailings, 20% of dolomite, and 10% of soda ash.

[0031] The preparation method of above-mentioned glass-ceramic, comprises the steps:

[0032] (1) Mixing: Add the above-mentioned prepared raw materials into the mixer, and the mixing time is controlled at 3 to 30 minutes, and the uniformity of the raw materials after mixing is greater than 95% as the judgment standard.

[0033] (2) Melting: Put the uniformly mixed raw materials into a glass electric melting furnace or a pool furnace for melting and clarification. The melting temperature is 1480°C.

[0034] (3) The melted and clarified molten glass is cast into a centrifuge for molding, and when the molten glass after molding drops to 500°C, it is placed in a crystallization annealing furnace for heat treatment to obtain the glass ceramics .

[0035] The heat treatment proce...

Embodiment 2

[0037] A glass-ceramic, the preparation raw materials are composed by weight: 60% of Chengde vanadium-containing ferro-titanium tailings, 10% of fluorite tailings, 25% of dolomite, and 5% of soda ash.

[0038] The preparation method of above-mentioned glass-ceramic, comprises the steps:

[0039] (1) Mixing: Add the above-mentioned prepared raw materials into the mixer, and the mixing time is controlled at 3 to 30 minutes, and the uniformity of the raw materials after mixing is greater than 95% as the judgment standard.

[0040] (2) Melting: Add the uniformly mixed raw materials into a glass electric melting furnace or a pool furnace for melting and clarification. The clarification temperature is 1500°C.

[0041] (3) The melted and clarified molten glass is cast into a centrifuge for molding, and when the molten glass after molding drops to 700°C, it is placed in a crystallization annealing furnace for heat treatment to obtain the glass ceramics .

[0042] The heat treatment ...

Embodiment 3

[0044] A glass-ceramic, the preparation raw materials are composed by weight: 15% of Chengde vanadium-containing ferro-titanium tailings, 25% of fluorite tailings, 50% of dolomite, and 10% of soda ash.

[0045] The preparation method of above-mentioned glass-ceramic, comprises the steps:

[0046] (1) Mixing: Add the above-mentioned prepared raw materials into the mixer, and the mixing time is controlled at 3 to 30 minutes, and the uniformity of the raw materials after mixing is greater than 95% as the judgment standard.

[0047] (2) Melting: Put the uniformly mixed raw materials into a glass electric melting furnace or a pool furnace for melting and clarification. The clarification temperature is 1350°C.

[0048] (3) The melted and clarified molten glass is poured into a mold preheated to 600°C for molding, and when the molten glass drops to 550°C after molding, it is placed in a crystallization annealing furnace for heat treatment to obtain the microcrystal Glass.

[0049] ...

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Abstract

The invention relates to a kind of microcrystalline glass and a preparation method thereof. The preparation raw materials include 10-90wt% of iron, vanadium and titanium-containing tailings, 5-50wt% of fluorite tailings, 1-50wt% of dolomite and 0-20wt% of soda ash. The preparation method of the microcrystalline glass comprises the following steps: uniformly mixing and fusing raw materials in proportion so as to obtain fused glass fluid; and shaping the fused glass fluid, then cooling the shaped glass fluid, and carrying out heat treatment on the obtained product so as to obtain the microcrystalline glass. The microcrystalline glass provided by the invention can be widely used for manufacturing high wear-resisting, acid and alkali erosion resistant and impact resistant products, and the performance of the microcrystalline glass is far higher than that of cast stone, thereby not only solving the pollution problem of tailings and manufacturing high-technical-content and high value-added products.

Description

technical field [0001] The invention relates to a glass-ceramic and a preparation method thereof, in particular to a glass-ceramic prepared by using Chengde vanadium-containing titanium magnet tailings and fluorite tailings and a preparation method thereof. Background technique [0002] The building materials with high wear resistance, acid and alkali corrosion resistance and impact resistance are now widely used cast stone, which is a processed silicate crystal material. However, at present, cast stone is mainly formed by melting and casting basalt or diabase, and it is necessary to mine basalt or diabase, which will damage the surrounding environment. Microcrystalline glass, also known as microcrystalline jade or ceramic glass, is a comprehensive glass and a new type of building material newly developed by foreign countries. Its scientific name is glass crystal. Glass-ceramic looks very different from our usual glass. It has the dual characteristics of glass and ceramics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/10
Inventor 侯雅军江鑫赵文娟王宁
Owner 承德华富玻璃技术工程有限公司
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