METHOD OF PREPARING MIXTURE FOR MAKING QUENCHED CULLET FOR FOAMED GLASS Russian patent published in 2013 - IPC C03B1/00 C03C1/02 C03C11/00 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of preparing a mixture for making quenched cullet for foamed glass. Method involves premixing silica-containing material in form of quartz sand with moisture content of 0.5% and grain size of 0.1-0.63 mm in amount of 30-35% of the mass of the prepared portion of the mixture and diatomite with moisture content of 15-30% with grain size smaller than 0.1 mm in amount of 28-33% of the mass of the prepared portion of the mixture. The rest of the components are then added to the mixed silica-containing material in the following sequence: dolomite, soda, sulphate. The mixture is then moistened with steam and components are mixed. The mixture is removed from the mixer and fed into a roller press using a two-shaft auger feeder with a declining pitch of screws that are engaged with each other.

EFFECT: wider raw material base of silica-containing material, high homogeneity and chemical activity of the glass mixture, low power consumption of the process of melting glass and producing the quenched cullet.

2 tbl, 2 ex, 2 dwg