Nd2O3-containing glass flux and preparation method thereof

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 ...

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