Solution of crystoballite in melts of granodiorite and felsite

The process of dissolution of cristobalite during the firing of acid-resistant products based on Buskul clay with the use of granodiorite and felsite has been modeled. The mechanism of dissolution of cristobalite in their melts has been established. The dissolution of cristobalite in felsite and granodiorite melts can be divided into two stages. At the first stage, at low exposures, the dissolution rate is determined by the rate of silicate formation during the interaction of the melt formed when felsite or granodiorite is heated with cristobalite. In the second stage, with long exposures, the dissolution rate is determined by the diffusion rate, and the dissolution rate is significantly reduced. Tab. 4, ill. 1, bibliography: 7 titles.