Investigation of the Fluxing Additives Effect on the Foaming of Different Silicate Raw Materials

Abstract:

The main trends in the use of silicate raw materials for the production of heat-insulating materials are considered. It is shown that the introduction of modifying additives-fluxes is promising to reduce the energy intensity of the technology. The substances that play the role of fluxes in the silicate industry are selected. The most active fluxes were chosen - sodium tetraborate Na₂B₄O₇ (borax) and sodium fluoride NaF. The mechanism of their melting effect on the silicate mass is investigated. It is shown that both borax and sodium fluoride are active fluxes, intensifying the melting of silicate raw materials of all types. The use of fluoride is hampered by a narrow temperature range, in which the formation of a stable porous structure is possible.

• Periodical: Materials Science Forum (Volume 1037)
• Pages: 767-774
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1037.767
• Online since: July 2021
• Authors: Boris M. Goltsman*, Elena A. Yatsenko, Lyubov A. Yatsenko, Natalia S. Goltsman, Dmitriy M. Kuzmenkov
• Keywords: Flux, Foam Glass, Hydrate Foaming, Silicate Raw Materials

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