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Glass refining agent, production method and application

A production method and technology of a clarifying agent, which are applied in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problem that the role of the clarifying agent is difficult to fully exert, and achieve environmental protection and human health, safe use, and contain Effects of low iron content

Active Publication Date: 2012-09-12
YIYANG SHENGLI CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the temperature is lower than 1300 ° C, the components in the melt have not completely reacted, and new bubbles are constantly forming. At the same time, the melt is in a high-viscosity state without external forces, such as stirring and blowing air. , it is difficult to give full play to the role of clarifying agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A glass clarifier, which includes one or a combination of oxide clarifiers, alkaline earth metal salt clarifiers, or halide clarifiers, which is prepared from raw materials after batching, ball milling, sieving, spray granulation, and compounding steps It is made of three kinds of particle groups with different specific surface areas, by weight, the first particle group is 20% to 30%, 1.5㎜<particle size≤2.0㎜, the second particle group is 40% to 50%, 0.5㎜< The particle size is ≤1.5㎜, the third particle group is 25%~35%, the particle size is ≤0.5㎜, and the sum of the three particle groups is 100%.

[0027] A kind of production method of glass clarifier, it comprises the following steps:

[0028] (1) Ingredients: by weight, take one or a combination of oxide clarifiers, alkaline earth metal salt clarifiers, or halide clarifiers, and the sum of the components is 100%;

[0029] (2) Ball milling: The raw materials in step (1) are accurately weighed according to the proportio...

Embodiment 2

[0043] A glass clarifier, which includes one or a combination of oxide clarifiers, alkaline earth metal salt clarifiers, or halide clarifiers, which is composed of raw materials through batching, ball milling, sieving to remove iron, spray granulation, and mixing It is produced after the step, and contains three kinds of particle groups with different specific surface areas, by weight, the first particle group is 20% to 30%, 1.5㎜<particle size≤2.0㎜, the second particle group is 40% to 50%, 0.5 ㎜<particle size≤1.5㎜, the third particle group is 25%~35%, the particle size is ≤0.5㎜, and the sum of the three particle groups is 100%.

[0044] The present invention is to reduce the iron content in the clarifying agent, and in step (3) sieving, remove the iron in the raw material.

[0045] In the present invention in step (3) sieving, an electromagnet for removing iron in the raw material is installed on the vibrating sieve, and the electromagnet is installed at the feeding end of the...

Embodiment 3

[0049] In step (1) of this embodiment, the clarifier is the oxide of antimony in the oxide clarifier—antimony trioxide and ceria; the ratios of the introduction of the two oxides are 95% and 5% respectively, The sum of each component is 100%;

[0050] In the present embodiment, in step (2), according to the material during ball milling: ball: water=1:1.5:3, time 15 hours;

[0051] Present embodiment is in step (3), and the ten thousand hole sieve surplus is 0.8%;

[0052] In this embodiment, when step (5) is mixed, the first particle group is 25%, the second particle group is 50%, and the third particle group is 25%.

[0053] In this embodiment, an appropriate amount of ceria is introduced to enhance the oxygen supply capacity of antimony trioxide, increase the partial pressure of oxygen in the melt, and significantly improve the clarification effect of antimony trioxide.

[0054] The rest are the same as embodiment 1.

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PUM

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Abstract

The invention discloses a glass refining agent for forming an echelon refining effect in glass melt so as to eliminate bubbles in melted glass liquid, a production method of the glass refining agent and application of the glass refining agent to glass production. The glass refining agent comprises one or a combination of an oxide refining agent, an alkaline-earth metal salt refining agent and a halide refining agent, and is characterized in that the glass refining agent is prepared by raw material via procedures of distribution, ball milling, sieving, spray granulation and mixing, and comprises three particle groups with different specific surface areas, the first particle group accounts for 20%-30% by weight, the grain size of the first particle group is larger than 1.5mm and smaller than or equal to 2.0mm, the second particle group accounts for 40%-50% by weight, the grain size of the second particle group is larger than 0.5mm and smaller than or equal to 1.5mm, the third particle group accounts for 25%-35%, the grain size of the third particle group is larger than or equal to 0.5mm, and the sum of the three particle groups is 100%. The glass refining agent is not made of arsenic trioxide, is non-toxic, is safe in use and favorable for environmental protection and human health, plays an active role in developing green glass products, and can be applied to production of ultra-white glass as the iron content of the refining agent is low.

Description

technical field [0001] The invention relates to an auxiliary agent for glass production, in particular to a glass clarifying agent, its production method and its application in glass production. Background technique [0002] Glass emits a lot of gas during the melting process, which is because of various minerals (such as feldspar), metal salts (such as barium carbonate), oxides (such as SiO 2 ) The reaction products released by chemical reactions such as decomposition and melting. They are inevitable products in the glass production process, and at the same time, they are redundant reaction products free from the glass structure, called gaseous inclusions, generally called "bubbles". The existence of these bubbles will have a fatal impact on the final glass product. [0003] Depending on the glass composition and production process, the bubbles in the glass are characterized by chemical diversity and structural polymorphism. According to the source of the bubbles, there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C1/00C03B5/225
CPCC03C1/004
Inventor 唐磊田智李承义
Owner YIYANG SHENGLI CHEM IND
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