Pearl shell treating process as well as ceramic and glaze prepared by materials prepared by same

Abstract

The invention discloses a treating process for preparing ceramic materials by pearl shells and wasted pearl bodies, and simultaneously further discloses a formula and a sintering technology for preparing daily-used ceramic and glaze by powder materials prepared by the treating process. The formula of shell porcelain body is as follows: 17-30 percent of mineral powder prepared by treatment, 10-20 percent of porcelain clay, 45-58 percent of kaoline, 0-5 percent of quartz, and 5-15 percent of feldspar; the formula of glaze of shell porcelain body is as follows: 1.36-4 percent of mineral powder prepared by treatment, 0,8-4 percent of porcelain clay, 3.6-11.6 percent of kaoline, 0-1 percent of quartz, 0.4-3 percent of feldspar, and 80-92 percent of high-boron high-zinc lead-free transparent frit; and the sintering technology of the shell porcelain is as follows: 1170-1220 DEG C of high-temperature plain temperature, and 1050-1100 DEG C of low-temperature glaze firing temperature. The invention has the advantages of energy conservation and consumption reduction, safety and environmental protection, and economy and practicalness.

Description

technical field [0001] The invention belongs to the field of ceramic raw materials and ceramic preparation thereof, and specifically relates to a material treatment process for converting discarded shells produced in freshwater pearl culture and discarded body and powder produced in the manufacturing process of pearl products into ceramics, and using the The formulation and process of preparing ceramics and glazes from the materials obtained by processing. Background technique [0002] The waste shells produced in the freshwater pearl industry are difficult to degrade in nature due to their special biological structure and composition. At the same time, their recycling is greatly restricted. With the continuous expansion of the freshwater pearl industry, it has seriously affected the local environment. However, its main mineral components and characteristics can be regenerated and synthesized to produce a series of mineral mixtures of calcium phosphate, calcium carbonate and...

AI Technical Summary

Problems solved by technology

as biological CaCO 3 , due to the special biological structure, pearl shells cannot be directly introduced as ceramic raw materials. If pearl shells are used directly to produce ceramics, the organic matter such as protein contained will seriously affect the performance of ceramic mud, which will increase the surface tension of the mud and cause a large number of dense air bubbles. , the gas cannot escape from the mud, and even affect the quality of the whole product

If only the pearl shells are calcined to obtain only CaCO without organic matter 3 or CaO, although CaCO 3 In the application of ceramics, in the form of CaO, it can solidify with other minerals or form the lowest eutectic minerals under certain conditions such as temperature and pressure. However, as a soluble alkaline oxide, it cannot be used in large quantities in mud, making the production process impossible to implement.

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