Method of preparing crystalline ZSM-20 zeolites (C-2517)

Method of preparing dentifrice-compatible silica particulates

Method of preparing fumed SiO.sub.2

Method of preparing highly ordered mesoporous molecular sieves

Method of preparing hydrophobic silica directly from an...

Method of preparing inorganic porous member

Method of preparing loosely aggregated 200-500 millimicron silic

Method of preparing optical fibers of silica

Method of preparing sialon products

Method of preparing silica aerogel

Method of preparing silico-crystal ZSM-48

Method of producing .beta.-sialon fine powder

Method of producing a zeolite of controlled particle size

Method of producing amorphous silica of controlled oil absorptio

Method of producing an adsorbent from rice hull ash

Method of producing granular amorphous silica

Method of producing granular synthetic silica

Method of producing high-purity transparent vitreous silica

Method of producing high-purity transparent vitreous silica body

Method of producing hydrogen fluoride and silicon dioxide from s