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Reaction between zinc oxide and chamotte refractories

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Conclusions

As a result of chemical reaction between chamotte and zinc oxide, zinc aluminate ZnAl2O4 and zinc silicate Zn2SiO4 are formed.

The mullite is not chemically resistant under the action of zinc oxide. Even at 900°C mullite reacts with zinc oxide, forming ZnAl2O4 and SiO2.

In accordance with the quantity of melt formed in the refractory under the action of zinc oxide, high-alumina products should be more resistant to the action of vapors and oxides of zinc at elevated temperatures than chamotte and semiacid refractories.

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Literature cited

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Translated from Ogneupory, No. 7, pp. 36–39, July, 1971.

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Vorob'eva, K.V., Shchetnikova, I.L. & Tretnikova, M.G. Reaction between zinc oxide and chamotte refractories. Refractories 12, 447–450 (1971). https://doi.org/10.1007/BF01283064

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  • DOI: https://doi.org/10.1007/BF01283064

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