PROCEDIMIENTO PARA LA PRODUCCION DE HIDROTERMICA DE SOLUCIO-NES DE SILICATO SODICO LIMPIDAS

摘要

A process for the hydrothermal production of clear sodium silicate solutions by reacting sand and aqueous NaOH solution wherein an excess of 5 to 10% by weight of sand is used and the reaction is conducted in a rotating pressure vessel until 90 to 95% complete, after which it is transferred and completes in a blow-off vessel.