METHOD OF PRODUCING LIQUID GLASS Russian patent published in 1999 - IPC

FIELD: manufacture of building materials. SUBSTANCE: suspension of silica-containing amorphous material with particle size (0.1-0.1) •10^-6 M in sodium hydroxide solution with solid to liquid phase ratio 1:(2.0-5.32) is subjected to hydrothermal treatment at atmosphere pressure and temperature 70-75 C for 8-60 min. EFFECT: reduced duration of process and its temperature, and expanded range of liquid glass properties. 1 tbl