The pre-reaction behaviour, including the variation of density and thermal conductivity of the granulated glass batch, gravimetric and XRD analysis, pre-reaction treatment at temperatures of 775-900 deg C, and high temperature microstructure, of granulated soda-lime-silica glass forming batch (pellets) are investigated. The results show that compared with the traditional loose glass batch, the density and thermal conductivity of the pellets is increased. The changes of temperature and holding time affect the pre-reaction behaviour of the pellets. When the pellets are treated at 850 deg C for 1h, over 90% of the dissolution reaction of carbonate and sulphate almost complete. However, at that moment, much liquid appears in the samples which may lead to difficulties in subsequent conveying and melting.
