Novel environment-friendly highly-white material bottle glass

Abstract

The invention discloses novel environment-friendly highly-white material bottle glass. The novel environment-friendly highly-white material bottle glass contains, by weight, 72-75% of SiO2, 1.5%-2.5%of Al2O3, 8%-12% of CaO, 1%-3% of MgO, 12%-14% of (Na2O+K2O), 1%-3% of B2O3, 0.2%-1.0% of Li2O, 0.2%-1.0% of BaO, 0.1%-0.5% of CeO2 and a proper amount of a physical decolorizing agent. According to the novel environment-friendly highly-white material bottle glass, without increasing manufacturing cost, the mechanical strength and the chemical stability of the novel environment-friendly highly-white material bottle glass are improved through changing main raw material ratio and introduction of new substances, the problems that traditional highly-white material bottle glass is fragile and proneto sodium precipitation are solved, the requirement for high-speed canning of wineries is met, meanwhile, a clarifying agent free of fluorine, arsenic and antimony is used, and the requirements for environmental protection and food safety are met.

Description

technical field [0001] The invention relates to the technical field of white material bottle glass, in particular to a novel environment-friendly high white material bottle glass. Background technique [0002] At present, the common high-white material bottle glass (also called soda-lime glass) contains silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, sodium oxide plus potassium oxide, and additives. The weight ratio of each ingredient is: 2 Silicon oxide (SiO 2 )70-73%, aluminum oxide (Al 2 o 3 ) 0.8-1.5%, calcium oxide (CaO) 8-12%, magnesium oxide (MgO) 1-3%, disodium oxide plus dipotassium oxide (Na 2 O+K 2 O) 14-16%, additive 1-3%. Although this bottle glass meets the production and quality requirements of most bottles and cans, the mechanical strength of this glass is not suitable for the current high-speed filling production requirements of wineries, and it is easy to break. At the same time, its chemical stability is not high, and it is prone to ...

AI Technical Summary

Problems solved by technology

Although this bottle glass meets the production and quality requirements of most bottles and cans, the mechanical strength of this glass is not suitable for the current high-speed filling production requirements of wineries, and it is easy to break

At the same time, its chemical stability is not high, and it is prone to sodium precipitation in a humid environment, and the storage period is short, which affects production and food safety.

In addition, arsenic and antimony clarifiers are mostly used in the production process of traditional bottle glass, and fluoride is added to accelerate clarification. This method does not meet the current safety and environmental protection requirements. Therefore, the existing glass formula needs to be further improved to solve the above problems.

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