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Method for preparing ultra-white microcrystalline glass stone by using blast furnace slag

A technology of glass-ceramics and blast furnace slag, which is applied in the field of building decoration materials, can solve problems such as dull color, few styles, and too deep, and achieve the effects of less pollution, high added value, and improved utilization rate

Inactive Publication Date: 2020-05-19
海南海控特玻科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the color glass-ceramics prepared by the existing technology has the problems of fewer styles, dull or too dark colors. With the continuous improvement of people's living standards, there are higher requirements for the appearance and color of existing building decoration materials. Therefore, it is an urgent problem to be solved at present to develop a novel glass-ceramic stone material that can achieve the predetermined performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing ultra-white glass-ceramic stone with blast furnace slag, the specific steps are as follows:

[0019] 1) First, according to the composition and mass percentage of the glass-ceramic melting batch: blast furnace slag: 50.00%, super white sand: 29.00%, Glauber’s salt: 3.50%, MgO: 4.66%, ZnO: 4.84%, NaCl: 1.50 %, Na 2 SiF 6 : 6.50%;

[0020] 2) Put the well-mixed batch material into a quartz crucible, put it in a high-temperature furnace with a temperature of 980°C, raise the temperature to 1340°C at a rate of 7°C / min and keep it warm for 30 minutes, and slowly stir it with a platinum rod for 10 seconds. Then heat up to 1550°C at the same rate for melting and heat preservation for 2.5 hours to obtain a glass mixed melt with high clarity and low viscosity;

[0021] 3) Pour the glass fusion mixture into a preheated cast iron mold for molding, and quickly put it into a precision annealing furnace at a temperature of 600°C for 2 hours after being molde...

Embodiment 2

[0023] A method for preparing ultra-white glass-ceramic stone with blast furnace slag, the specific steps are as follows:

[0024] 1) Firstly, according to the composition and mass percentage of the glass-ceramic melting batch: blast furnace slag: 47.5%, super white sand: 29.53%, Glauber’s salt: 4.15%, MgO: 4.95%, ZnO: 5.82%, NaCl: 1.93 %, Na 2 SiF 6 : 6.12%;

[0025] 2) Put the well-mixed batch material into a quartz crucible, put it in a high-temperature furnace at a temperature of 950°C, raise the temperature to 1320°C at a rate of 8°C / min and keep it warm for 30 minutes, and slowly stir it with a platinum rod for 10 seconds. Then heat up to 1550°C at the same rate to melt and hold for 2.5 hours to obtain a glass mixed melt with high clarity and low viscosity

[0026]3) Pour the glass fusion mixture into a preheated cast iron mold for molding, and quickly put it into a precision annealing furnace at a temperature of 600°C for 2 hours after being molded and demolded, and ...

Embodiment 3

[0028] A method for preparing ultra-white glass-ceramic stone with blast furnace slag, the specific steps are as follows:

[0029] 1) First, according to the composition and mass percentage of the glass-ceramic melting batch: blast furnace slag: 47.71%, super white sand: 30.00%, Glauber’s salt: 3.45%, MgO: 4.75%, ZnO: 5.96%, NaCl: 2.01 %, Na 2 SiF 6 : 6.12%.

[0030] 2) Put the well-mixed batch material into a quartz crucible, put it in a high-temperature furnace with a temperature of 1100°C, raise the temperature to 1300°C at a rate of 5°C / min and keep it warm for 30 minutes, and slowly stir it with a platinum rod for 10 seconds. Then heat up to 1550°C at the same rate to melt and hold for 2.5 hours to obtain a glass mixed melt with high clarity and low viscosity

[0031] 3) Pour the glass fusion mixture into a preheated cast iron mold for molding, and quickly put it into a precision annealing furnace at a temperature of 600°C for 2 hours after being molded and demolded, a...

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PUM

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Abstract

The invention belongs to the technical field of environment-friendly building decoration materials, and provides a preparation method for preparing ultra-white microcrystalline glass stone from blastfurnace slag, wherein the ultra-white microcrystalline glass stone is prepared from the following raw materials in percentage by weight; 45.78-51% of blast furnace slag, 28.71-30% of ultra-white sand,2.66-4.35% of mirabilite, 1.34-2.16% of NaCl, 6.21-6.61% of Na2SiF6, 4.66-5.1% of MgO and 3-6% of ZnO, wherein the mirabilite and the NaCl are composite clarification cosolvents, and the Na2SiF6 andthe ZnO are used as a composite nucleating agent. According to the method, the utilization rate of blast furnace slag resources is increased, the blast furnace slag is endowed with high additional value, and renewable circulation of the resources is realized.

Description

technical field [0001] The invention belongs to the technical field of green and environment-friendly building decoration materials, and in particular relates to a method for preparing ultra-white glass-ceramic stone materials from blast furnace slag. Background technique [0002] In recent years, glass-ceramics as a new type of building decoration material has received widespread attention from the society, and its application range has become wider and wider. Therefore, it is of great significance to develop glass-ceramics with characteristics and excellent performance. At present, the color glass-ceramics prepared by the existing technology have the problems of fewer styles, dull or too dark colors. With the continuous improvement of people's living standards, there are higher requirements for the appearance and color of existing building decoration materials. Requirements, so the development of novel glass-ceramic stones that can achieve the predetermined performance is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/06C03C6/10C03B19/02C03B32/02
CPCC03C10/0063C03C10/0036C03B19/02C03B32/02
Inventor 王嘉健贺建雄赵会峰姜宏肖琴周莉符有杰曾淋林
Owner 海南海控特玻科技有限公司