High-content syenite low-cost zirconium-free opaque glaze and preparation method and application thereof

Abstract

The invention discloses a high-content syenite low-cost zirconium-free opaque glaze, which comprises the following main raw materials (by weight): 40-45 parts of syenite, 20-25 parts of quartz, 6-10 parts of calcite, 9-11 parts of dolomite, 2-5 parts of calcined zinc oxide, 6-9 parts of titanium oxide, and 7-10 parts of Suzhou kaolin. In addition, a preparation method and application of the abovehigh-content syenite low-cost zirconium-free opaque glaze are also disclosed. By replacing high-quality feldspar material with syenite and replacing high-cost zirconium silicate with titanium oxide asan opacifier and through the optimum formula design, the reliance on high-quality mineral raw material resources in the glaze production process is reduced, and the product has advantages of low cost, good opacity effect and high whiteness after burning. Moreover, the preparation method of the invention has simple process, is easy to operate, is easy for promotion and application, and has a broadapplication prospect.

Description

technical field [0001] The invention relates to the technical field of ceramic glazes, in particular to a low-cost zirconium-free opaque glaze with high content of syenite and its preparation method and application. Background technique [0002] Ceramic raw materials are non-renewable resources. With the continuous expansion of production and market scale, the resources of high-quality ceramic raw materials are becoming increasingly tense, resulting in more and more harmful substances (such as Fe 2 o 3 、TiO 2 etc.) More low-grade raw materials are used in the production of ceramic bodies. Since the increase in the amount of iron and titanium compounds will inevitably affect the whiteness of the body, it is not suitable to use transparent or translucent glazes. At this time, it is particularly important to use opaque glazes with strong covering ability. Opacifying glaze, also known as devitrifying glaze, is realized by adding an appropriate amount of opacifying agent to th...

AI Technical Summary

Problems solved by technology

Among them, tin oxide system opacity glaze has good opacification effect but high cost and high price; zirconium silicate system opacity glaze is widely used, but its high temperature viscosity is high, which easily causes problems such as high glaze temperature and poor glaze flatness. In addition, the raw material zircon is expensive, and it is accompanied by highly radioactive hafnium elements, which are harmful to human health; while the titanium oxide system opacity glaze has a high refractive index, is cheap, and has strong covering ability. A small amount in the glaze can achieve a good opacity effect

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