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Iron tailing microcrystalline glass and preparation method thereof

A technology of glass-ceramics and iron tailings, applied in the field of iron-tailings glass-ceramics and its preparation, can solve the problems of color-stable glass-ceramics, unstable color, etc., and achieve low cost, stable color, high temperature low effect

Inactive Publication Date: 2014-09-03
北京商通四海科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for iron tailings, the color prepared by using CuO as colorant is not very stable
Because iron tailings contain a certain amount of iron, it is difficult to prepare glass-ceramic with stable color

Method used

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  • Iron tailing microcrystalline glass and preparation method thereof

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[0031] In an embodiment of the present invention, a method for preparing iron tailings glass-ceramic is also provided, comprising the following steps:

[0032] (1) Mix the raw materials evenly, heat to 1400°C-1500°C, and keep warm for 40-80min to prepare molten glass;

[0033] (2), quenching the molten glass with water to obtain glass frit;

[0034] (3) heating the glass frit at a heating rate of 8-12°C / min, and raising the temperature to 1100-1150°C for crystallization;

[0035] (4) After crystallization, the iron tailings glass-ceramic is obtained by cooling with the furnace.

[0036] The steps of the method are simple and easy to operate, and the temperature in the melting process is low, which effectively reduces energy consumption; the prepared glass-ceramic has stable and pure color, good physical and chemical properties and low cost.

[0037] Preferably, in the step (3), the crystallization time is 20-40min. The crystallization time can not only satisfy the good and ...

Embodiment 1

[0040] Get the following raw materials: by weight, 40 parts of iron tailings, 35 parts of quartz sand, 25 parts of limestone, 4 parts of soda ash, 2 parts of zinc oxide, 2 parts of barium carbonate, 0.5 part of borax, 0 part of ferric oxide, clarified 1 part of agent, wherein, the clarifying agent is a mixture of antimony oxide and sodium nitrate, the mass ratio of antimony oxide and sodium nitrate is 1:2.5; the composition content of iron tailings is as follows: by weight percentage, silicon dioxide 52%, oxide Aluminum 12%, ferric oxide 3%, calcium oxide 5%, titanium oxide 1%, magnesium oxide 1%, potassium oxide + sodium oxide 3%, and the rest is impurities;

[0041] Mix the above raw materials evenly, heat up to 1400°C, and keep it warm for 40 minutes to prepare molten glass;

[0042] Quenching the molten glass in a glass-ceramic water quenching tank to obtain glass frit;

[0043] Heat the glass frit at a heating rate of 8°C / min, and raise the temperature to 1100°C for crys...

Embodiment 2

[0046]Take the following raw materials: by weight, 70 parts of iron tailings, 15 parts of quartz sand, 15 parts of limestone, 7 parts of soda ash, 5 parts of zinc oxide, 6 parts of barium carbonate, 1 part of borax, 2 parts of ferric oxide, clarified 2 parts of agent, wherein, the clarifying agent is a mixture of antimony oxide and sodium nitrate, the mass ratio of antimony oxide and sodium nitrate is 1:2.7; the composition content of iron tailings is as follows: by weight percentage, silicon dioxide 55.21%, oxide Aluminum 14.72%, ferric oxide 4.21%, calcium oxide 6.51%, titanium oxide 1.57%, magnesium oxide 1.5%, potassium oxide + sodium oxide 4.68%, and the rest is impurities;

[0047] Mix the above raw materials evenly, heat up to 1500°C, and keep it warm for 80 minutes to prepare molten glass;

[0048] Quenching the molten glass in a glass-ceramic water quenching tank to obtain glass frit;

[0049] Heat the glass frit at a heating rate of 12°C / min, and raise the temperatu...

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Abstract

The invention relates to the field of microcrystalline glass products, particularly an iron tailing microcrystalline glass and a preparation method thereof. The iron tailing microcrystalline glass is prepared from the following raw materials in parts by weight: 40-70 parts of iron tailing, 15-35 parts of quartz sand, 15-25 parts of limestone, 4-7 parts of sodium carbonate, 2-5 parts of zinc oxide, 2-6 parts of barium carbonate, 0.5-1 part of borax, 0-10 parts of ferroferric oxide and 1-2 parts of clarifier. The preparation method comprises the following steps: uniformly mixing the raw materials, and heating to obtain molten glass; quenching the molten glass with water to obtain frit; and heating the frit, crystallizing, and carrying out furnace cooling to obtain the iron tailing microcrystalline glass. By compounding the iron tailing with other materials and using the Fe3O4 as the colorant, the green, red or purple microcrystalline glass can be prepared; and the prepared microcrystalline glass has the advantages of stable and pure color, favorable physiochemical properties, low cost and low energy consumption.

Description

technical field [0001] The invention relates to the field of glass-ceramic products, in particular to an iron tailings glass-ceramic and a preparation method thereof. Background technique [0002] Glass-ceramic, also known as glass ceramics or microcrystalline jade, is a new type of inorganic non-metallic material, known as the environmental coordination material of the 21st century. Glass-ceramics has many excellent properties, such as high mechanical strength, good chemical stability and thermal stability, high service temperature, hardness, wear resistance, etc. It is used as structural and functional materials in the fields of electronics, construction, chemical industry, and mechanical engineering , decorative materials and get the application. [0003] The preparation of glass-ceramics with iron tailings as the main raw material is the utilization of industrial waste, which not only saves energy, turns waste into treasure, and improves the natural environment, but als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/10
Inventor 李庆华文莹文民政安心心王明耿振兴
Owner 北京商通四海科技有限公司
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