Silicate (珪 酸) soda in the production process and apparatus

摘要

Sodium silicate having Si and Na in 3 molar ratio is prepd. Thus, silica material coated with meta Na-silicate which is prepd. from 1 wt. part NaOH and 2.5 wt. part silica is injected into preheated reaction Vessel(1) and reacted on heatexchange plate at 900-1100C. The resulting foamy fluid (9) is effluxed from (1), dropped into melting vessel(6) contg. H2O and melted to give Nasilicate.