MEMBRANEN AUF DER BASIS VON KIESELSAEUREHETEROPOLYKONDENSATEN, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG

摘要

Membranes based on silicic acid heteropolycondensates are produced by hydrolytic polycondensation of at least one silicic acid derivative in the presence of water and, if appropriate, a condensation catalyst, the polycondensation being carried out at the surface of a support, which supports the resulting membrane. The reactants can be fed to the surface of the support via the gas phase or via one or more liquid phases.