METHOD OF UTILIZATION OF GEOTHERMAL SILICA FOR SODIUM WATER GLASS PRODUCING Russian patent published in 2002 - IPC

Abstract RU 2186025 C1

FIELD: chemical industry. SUBSTANCE: sodium water glass is produced by autoclave method from geothermal silica with specific surface 50-300 m²/g, alkali and water. Silica is precipitated by freezing out from hydrothermal solution. Reagents are heated to the desired temperature by hydrothermal flow heat-carrier being among them spent one. The required technical indices of glass are attained by modulation of weight part of reagents in the parent mixture. The use of geothermal silica promotes the increase of sodium silicate reaction rate formation. EFFECT: improved method of utilization, decreased time of process and energy consumption.

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RU 2 186 025 C1

Authors

Kashpura V.N.

Potapov V.V.

Dates

2002-07-27—Published

2000-12-25—Filed