Method for preparing iron tailing into ceramic frit glaze

A technology of iron tailings and frit glaze, which is applied in the field of comprehensive utilization of iron tailings resources and building ceramic materials, can solve the problems of large fluctuations in the composition of iron tailings, unfavorable mica dispersion of mud, and restrictions on the application of iron tailings. The effect of firing temperature range, overcoming adverse effects, and low cost

Inactive Publication Date: 2014-05-28
UNIV OF SCI & TECH BEIJING +2
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  • Abstract
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Problems solved by technology

At present, there have been some research results on the secondary utilization of tailings, mainly using iron tailings to prepare wall and floor tile materials such as antique bricks, whole body bricks, vitrified bricks, etc., but there are always some technical difficulties in the preparation process. There are: large fluctuations in the composition of iron tailings affect the stability of the product; too high iron content is easy to deform and foam when fired at high temperature; the influence of gypsum in high-calcium iron tailings on the fluidity of mud; the existence of mica is not conducive to mud dispersion; sulfide Pyrolysis is very easy to form pores, defects, etc.
These problems have restricted the application of iron tailings in the field of building ceramics to a large extent. Therefore, it is of great potential to find a way to overcome the above-mentioned defects and use iron tailings more practically, with high technology and high added value. must do

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  • Method for preparing iron tailing into ceramic frit glaze

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. The mass fraction used is: 45% iron tailings_18% potassium feldspar_10% albite feldspar_3% wollastonite_20% quartz_4% industrial iron oxide_0% zirconium silicate_0% calcite After batching, it is mixed by a mixer for 1 hour, then melted in an oxidizing atmosphere for 15 minutes without constant stirring, and the melting temperature is 1280°C. Then after water quenching and ball milling for 8-10 hours (subject to 80-mesh sieve), the frit is obtained after drying.

[0021] 2. Use the frit obtained above, according to the mass fraction of the components: 85% frit, 7% calcite, 4% kaolin, 0% industrial iron oxide, 4% quartz, 0% strontium carbonate, and 0% albite feldspar . Ordinary ball milling is used for 20~22 hours (ball: material: water = 1:2:0.8), and the glaze slurry is obtained through aging. The glaze slurry is passed through a 250-mesh sieve, and the remaining 0.05% is sieved, and the concentration of the glaze slurry is 1.80g / cm3.

[0022] 3. Take the dry bod...

Embodiment 2

[0027] 1. The mass fraction used is: 52% iron tailings_23% potassium feldspar_14% albite feldspar_5% wollastonite_0% quartz_6% industrial iron oxide_0% zirconium silicate_0% calcite After batching, it is mixed by a mixer for 1 hour, then melted in an oxidizing atmosphere for 15 minutes without constant stirring, and the melting temperature is 1280°C. Then after water quenching and ball milling for 8-10 hours (subject to 80-mesh sieve), the frit is obtained after drying.

[0028] 2. Use the frit obtained above, according to the mass fraction of the components: 73% frit, 7% calcite, 4% kaolin, 4% industrial iron oxide, 12% quartz, 0% strontium carbonate, and 0% albite feldspar . Ordinary ball milling is used for 20~22 hours (ball: material: water = 1:2:0.8), and the glaze slurry is obtained through aging. The glaze slurry is passed through a 250-mesh sieve, and the remaining 0.05% is sieved, and the concentration of the glaze slurry is 1.75g / cm3.

[0029] 3. Take the dry bod...

Embodiment 3

[0034] 1. The mass fraction used is: 45% iron tailings_18% potassium feldspar_10% albite feldspar_3% wollastonite_20% quartz_4% industrial iron oxide_0% zirconium silicate_0% calcite After batching, it is mixed by a mixer for 1 hour, then melted in an oxidizing atmosphere for 15 minutes without constant stirring, and the melting temperature is 1280°C. Then after water quenching and ball milling for 8-10 hours (subject to 80-mesh sieve), the frit is obtained after drying.

[0035] 2. Use the frit obtained above, according to the mass fraction of the components: 92% frit, 0% calcite, 0% kaolin, 0% industrial iron oxide, 0% quartz, 8% strontium carbonate, and 0% albite feldspar . Ordinary ball milling is used for 20~22 hours (ball: material: water = 1:2:0.8), and the glaze slurry is obtained through aging. The glaze slurry is passed through a 250-mesh sieve, and the remaining 0.05% is sieved, and the concentration of the glaze slurry is 1.90g / cm3.

[0036] 3. Take the dry bod...

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Abstract

Provided is a method for preparing iron tailing into ceramic frit glaze. The method for preparing iron tailing into ceramic frit glaze regards iron tailing as raw materials, is free of adding other ceramic pigment or, colorant except for iron, and prepares ceramic frit glaze which is abundant in color and good in effect. The method for preparing iron tailing into ceramic frit glaze explores a novel path for iron tailing resources with high technology and high added value. The dosage of the iron tailing in the ceramic frit glaze is large, and the iron tailing is in integral utilization. The method for preparing iron tailing into ceramic frit glaze utilizes affluent iron and other microelements in the iron tailing to tint for glaze, replaces the expensive ceramic pigments, greatly lowers the cost of the ceramic frit glaze, selects and provides novel direction for ceramic frit glaze raw materials and the ceramic pigments, and lowers the dependent degree to high quality non-metal mineral resources compared with the current ceramic glaze production. The iron tailing and parts of the raw materials are initially melted to frits to use, so that firing temperature range of the glaze is expanded, and ceramic glaze surface quality is improved. A series of unfavorable influences to the preparation process in the process of applying the iron tailing in a ceramic green body are overcome. The method for preparing iron tailing into ceramic frit glaze has the advantages of being simple in process, optimum in glaze quality, and applicable to industrialized mass production.

Description

technical field [0001] The invention provides a method for preparing iron tailings into ceramic frit glaze, which belongs to the field of comprehensive utilization of iron tailings resources and building ceramic materials. It is characterized in that iron tailings are used as the main raw material to prepare ceramic frit glaze, which opens up a new way for the high-tech and high value-added application of iron tailings resources. technical background [0002] At present, the annual discharge of iron tailings in my country is as high as hundreds of millions of tons. The accumulation of a large number of iron tailings not only occupies land resources, pollutes the environment, but also poses certain safety hazards. But as far as our country is concerned, the utilization of iron tailings is basically in its infancy, and most of them only stay in the recovery of some valuable metal components, but less development and utilization of a large number of non-metallic components in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/86B09B3/00
Inventor 郭志猛石棋熊守安隋延力刘祥庆黎邦城雷远坤刘曙刘红光曾鲜
Owner UNIV OF SCI & TECH BEIJING
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