Patent ID: 6099792
Filing Date: 2000-08-08
Classification: B22C,C01B,C03C,C04B

Abstract:
A process for producing a dry, porous, silica gel monolith comprising the steps of:placing a solution into a mold formed of a porous material that is inert to the solution and that is formed principally of a material selected from the group consisting of graphite, carbides and mixtures thereof, wherein the solution consists essentially of the following components, in prescribed relative proportionstetraethyl orthosilicate or tetramethyl orthosilicate,an alcohol,deionized water, andan acid catalyst and/or a base catalyst;allowing the solution to gel within the mold;drying the gel within the mold; andremoving the dried gel from the mold to produce a dry, porous, silica gel monolith.