Low-zirconium white glaze for sanitary ceramic and preparation process of low-zirconium white glaze

A technology of sanitary ceramics and preparation technology, which is applied in the field of ceramic glazes, can solve the problems of unsatisfied processing performance, product performance and environmental protection, and does not take into account the internal composition and matching of ceramic glazes, etc., to achieve high gloss, Effect of high ceramic whiteness and low fluidity at high temperature

Active Publication Date: 2019-12-31
FOSHAN DONGPENG CERAMIC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to achieve high brightness and high whiteness in existing ceramic glazes, a large amount of zirconium silicate is used. However, due to the use of zirconium silicate, the internal composition and matching of the entire ceramic glaze are not considered, resulting in that although there are some gaps in the finished product. High whiteness, but it is not satisfied with processing performance, product performance and environmental protection; especially for radioactivity, there will be radioactive substances in the impurities of zirconium silicate, so it is necessary to reduce the content of zirconium silicate as much as possible in the actual preparation process. use; so how to reduce the use of zirconium silicate and not affect the performance of high whiteness is the current research direction

Method used

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  • Low-zirconium white glaze for sanitary ceramic and preparation process of low-zirconium white glaze
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  • Low-zirconium white glaze for sanitary ceramic and preparation process of low-zirconium white glaze

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preparation example Construction

[0035] A preparation process of low-zirconium white glaze, comprising the following steps:

[0036] (1) Mix raw materials including zirconium silicate, wollastonite, dolomite, frit and calcined talc, and ball mill until the content of particle size below 10 μm accounts for 70-74%, that is, the whitening agent is prepared;

[0037] (2) Mix the raw materials including quartz, kaolin, alumina, potassium feldspar, albite, calcite and zinc oxide, into balls, and add step (1) when the ball mill particle size is less than 10 μm and the content accounts for 45-65%. whitening agent; and continue ball milling to mix evenly to obtain coarse white glaze;

[0038] (3) Sieve the coarse white glaze to remove iron to obtain a low-zirconium white glaze.

[0039] To further illustrate, in the step (2), after adding the whitening agent, ball mill until the glaze slurry has a particle size of less than 10 μ and the content is 56-60%, and passes through a 325-mesh sieve, and the balance is ≤0.1%....

Embodiment A

[0057] A preparation process of low-zirconium white glaze, comprising the following steps:

[0058] (1) Mix the raw materials including zirconium silicate, wollastonite, dolomite, frit and burnt talc, and ball mill until the content of the particle size is less than 10 μm accounts for 72%, that is, the whitening agent is prepared;

[0059] (2) Mix the raw materials including quartz, kaolin, alumina, potassium feldspar, albite, calcite and zinc oxide, and put them into balls, and add the additive of step (1) when the ball mill particle size is less than 10 μm and the content accounts for 55%. White agent; ball milled until the content of the glaze slurry with a particle size of less than 10μ is 60%, and passed through a 325-mesh sieve, with a balance of ≤0.1%, to obtain a coarse and clean white glaze;

[0060] (3) Mix the coarse white glaze iron remover and the magnetic rod to remove iron, pass through a 180-mesh sieve to obtain a low zirconium white glaze; repeat 2 times.

[...

Embodiment B

[0074] A preparation process of low-zirconium white glaze, comprising the following steps:

[0075] (1) Mix the raw materials including zirconium silicate, wollastonite, dolomite, frit and burnt talc, and ball mill until the content of the particle size is less than 10 μm accounts for 72%, that is, the whitening agent is prepared;

[0076] (2) Mix the raw materials including quartz, kaolin, alumina, potassium feldspar, albite, calcite and zinc oxide, and put them into balls, and add the additive of step (1) when the ball mill particle size is less than 10 μm and the content accounts for 55%. White agent; ball milled until the content of the glaze slurry with a particle size of less than 10μ is 60%, and passed through a 325-mesh sieve, with a balance of ≤0.1%, to obtain a coarse and clean white glaze;

[0077] (3) Mix the coarse white glaze iron remover and the magnetic rod to remove iron, pass through a 180-mesh sieve to obtain a low zirconium white glaze; repeat 2 times.

[...

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Abstract

The invention discloses a low-zirconium white glaze for a sanitary ceramic. The low-zirconium white glaze comprises the following raw materials in percentage by mass: 6.5-7.5% of zirconium silicate, 24-27% of quartz, 5-7% of kaolin, 2.5-3.5% of aluminum oxide, 12-18% of potassium feldspar, 9-15% of albite, 6-8.5% of calcite, 9-13% of wollastonite, 2-5% of dolomite, 2-3.5% of sintered talc, 2-3.5%of zinc oxide and 1.5-4% of frit. The low-zirconium white glaze is prepared by using a preparation process through operation of steps (1)-(3). Under a condition of a low zirconium silicate content, high glossiness, high ceramic whiteness, good high-temperature flowability and low radioactivity of the low-zirconium white glaze can be still maintained, and the low-zirconium white glaze has the effects of high glossiness, high ceramic whiteness, good high-temperature flowability and low radioactivity.

Description

technical field [0001] The invention relates to the technical field of ceramic glazes, in particular to a low-zirconium white glaze for sanitary ceramics and a preparation process thereof. Background technique [0002] In order to achieve high brightness and high whiteness in existing ceramic glazes, a large amount of zirconium silicate is used. However, due to the use of zirconium silicate, the internal composition and matching of the entire ceramic glaze are not considered, resulting in that although there are some gaps in the finished product. High whiteness, but it is not satisfied with processing performance, product performance and environmental protection; especially for radioactivity, there will be radioactive substances in the impurities of zirconium silicate, so it is necessary to reduce the content of zirconium silicate as much as possible in the actual preparation process. Therefore, how to reduce the use of zirconium silicate and not affect the performance of hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/20
CPCC03C8/20
Inventor 伍军玲潘欢欢钟保民徐瑜
Owner FOSHAN DONGPENG CERAMIC
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