Nd2O3-containing glass flux and preparation method thereof

A technology of flux and glass, which is applied in the field of glass flux containing Nd2O3 and its preparation, can solve the problems of reducing the service life of the kiln, the corrosion of the kiln pool wall, and the emission of fluoride, and achieves excellent fluxing effect, The effect of eliminating gas seeds and saving energy

Inactive Publication Date: 2015-08-12
涡阳县鸿运玻璃制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When fluorite is used, the glass melting process in the kiln is a high-temperature reaction, and the use of glass liquid containing fluorine will cause serious erosion of the kiln pool wall, reducing the service life of the kiln and the safety of production
Moreover, a large amount of fluoride produced in the production process is discharged into the atmosphere along with the flue gas, resulting in air pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] A containing Nd 2 o 3 The glass flux is made of the following raw materials in parts by weight (kg): cerium nitrate 2.3, appropriate amount of distilled water, Nd 2 o 3 2.5, magnesium hydroxide 6.5, sodium bicarbonate 2.5, bismuth oxide 43, boron oxide 4.5, silica sol 1.8, ammonia water in proper amount.

[0019] The said containing Nd 2 o 3 The production method of glass flux, is characterized in that:

[0020] (1) Sodium bicarbonate, Nd 2 o 3 , magnesium hydroxide, bismuth oxide, and boron oxide are mixed, pulverized, uniformly mixed with silica sol, dried at room temperature, and pulverized to a particle size of 1-100 microns to obtain a powder;

[0021] (2) Add 3 parts by weight of distilled water to the powder obtained in step (1), and disperse ultrasonically for 13 minutes to obtain A mixed slurry; add 2 times by weight of cerium nitrate to distilled water, stir evenly, and obtain B solution;

[0022] (3) Heat the A mixed slurry to 70°C, perform magnet...

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Abstract

The invention relates to a Nd2O3-containing glass flux, which is prepared from the following raw materials by weight: 2-2.5 parts of cerium nitrate, a proper amount of distilled water, 2-3 parts of Nd2O3, 6-7 parts of magnesium hydroxide, 2-3 parts of sodium bicarbonate, 40-45 parts of bismuth oxide, 4-5 parts of boron oxide, 1.5-2 parts of silica sol, and a proper amount of ammonia water. According to the present invention, the flux is suitable for float glass production and has an excellent fluxing effect, and the melting temperature is effectively reduced with the flux compared with the single use of sodium oxide so as to save the energy source; Nd2O3 and magnesium hydroxide are used so as to provide a clarifying effect and enhance the strength and the ultraviolet ray filtration performance of the glass; and with the process, the nano-scale cerium oxide is wrapped on the particle surface so as to rapidly and completely eliminate the gas seeds.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to a 2 o 3 Glass flux and preparation method thereof. Background technique [0002] Float glass is a method of flat glass production. In the production of float glass, a very important link is to continuously put the batch materials into the melting furnace through the feeder for melting, and heat them at high temperature to form uniform, pure and transparent glass. And meet the molding requirements, it is a continuous and single liquid phase process of glass, which is one of the main stages in the glass manufacturing process. The melting speed and the rationality of melting have a great impact on the output, quality, qualification rate, production cost and fuel consumption of glass. It has a great influence on the life of the tank and kiln. The glass melting process includes 5 stages, namely the formation of silicate, glass formation, glass clarification, glass homogenization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C1/00
Inventor 于连民
Owner 涡阳县鸿运玻璃制品有限公司
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