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Method for preparing glass ceramic through compounding white clay and fly ash

A technology of glass ceramics and fly ash, which is applied in the field of architectural decoration, can solve the problems of soda white mud and fly ash environmental pollution, and achieve good social and economic benefits, high economic benefits, and reduce production costs

Active Publication Date: 2015-03-11
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the environmental pollution problem of soda lime and fly ash, turn waste into treasure, and provide a method for preparing glass ceramic materials by using white mud and fly ash

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The white mud of 50 weight parts, the fly ash of 40 weight parts, the Na of 5 weight parts 2 CO 3 , 5 parts by weight of ZrO 2 Mix well. Keep the temperature at 1500°C for 2 hours in a high-temperature furnace for melting treatment, then put it into an annealing furnace at 550°C for annealing, and cool to room temperature after 2 hours to obtain the basic glass. After molding the basic glass sample, heat it up to 850°C at a heating rate of 10°C / min in a heat treatment furnace, hold it for 1 hour, and then cool it down to room temperature at a cooling rate of 20°C / min to obtain glass ceramics.

Embodiment 2

[0016] 30 parts by weight of lime mud, 45 parts by weight of fly ash, 10 parts by weight of Na 2 CO 3 , 10 parts by weight of H 3 BO 3 , 5 parts by weight TiO 2 Mix well. Keep the temperature at 1500°C for 2 hours in a high-temperature furnace for melting treatment, then put it into an annealing furnace at 600°C for annealing, and cool to room temperature after 3 hours to obtain the basic glass. After molding the basic glass sample, heat it up to 900°C at a heating rate of 5°C / min in a heat treatment furnace, hold it for 0.5h, and then cool it down to room temperature at a cooling rate of 10°C / min to obtain glass ceramics.

Embodiment 3

[0018] With the lime mud of 25 parts by weight, the fly ash of 70 parts by weight, the boric acid H of 3 parts by weight 3 BO 3 , 2 parts by weight ZrO 2 Mix well. Keep the temperature at 1500°C for 3 hours in a high-temperature furnace for melting treatment, then put it into an annealing furnace at 650°C for annealing, and cool to room temperature after 0.5h to obtain the basic glass. After molding the glass sample, heat it up to 1050°C at a heating rate of 15°C / min in a heat treatment furnace, hold it for 2 hours, and then cool it down to room temperature at a cooling rate of 5°C / min to obtain glass ceramics.

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PUM

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Abstract

The invention relates to comprehensive utilization of white clays and fly ashes, in particular to a method for preparing glass ceramics through compounding white clays and fly ashes. The purpose is to provide the method for preparing the glass ceramics through compounding the white clays and the fly ashes, so as to solve an environmental protection problem during preparing alkali making white clays and fly ashes and turn waste into wealth. According to the invention, the purpose is achieved by using the following technical scheme: the method comprises the following steps of: uniformly mixing 10-50% of white clays, 40-80% of fly ashes and 5-25% of additive in percentage by mass; preparing a basic glass by using a high temperature melting method; and carrying out heat treatment on the basic glass so as to obtain the glass ceramics. The method for preparing the glass ceramics through compounding the white clays and the fly ashes, provided by the invention, has the advantages as follows: solid wastes can be furthest consumed so as to turn waste into wealth; moreover, energy is saved, consumption is reduced, and green environment friendly production can be achieved while production cost is greatly reduced; therefore, good social benefits and economic benefits are obtained.

Description

Technical field [0001] The invention involves the comprehensive utilization of solid waste white mud and flour ash, and especially the method of compounding high -performance glass ceramics with white mud and flour ash, which is suitable for the field of building decoration and crafts. Background technique [0002] White mud includes alkaline white mud and paper white mud.Alkaline -made white mud, also known as alkali residue, is a solid waste produced by the pure alkali industry.Pure alkali industry occupies an important position in the national economy.The production methods of pure alkali are ammonia, natural alkali and alkali method. For each production of 1T soda, emission is about 10m 3 The waste liquid contains 300 to 600kg of waste residue.At present, the annual output of pure alkali in the world is about 70 million tons. Amino -alkaline is the main method for producing pure alkali in the world. Actarine is about 50 million tons of soda.The emissions of alkali residue not...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00B09B3/00
Inventor 刘立强
Owner SHANDONG JIANZHU UNIV