초록 ▼

The present invention is directed to a method for making silica. A liquid, preferably halide-free, silicon-containing compound capable of being converted by thermal oxidative decomposition to SiO.sub.2 is provided and introduced directly into the flame of a combustion burner, which converts the comp

The present invention is directed to a method for making silica. A liquid, preferably halide-free, silicon-containing compound capable of being converted by thermal oxidative decomposition to SiO.sub.2 is provided and introduced directly into the flame of a combustion burner, which converts the compound to silica, thereby forming finely divided amorphous soot. The soot is vaporized at the site where the liquid is converted into silica by pneumatically atomizing the liquid with a stream of oxygen gas, or a mixture of oxygen gas and nitrogen gas. The amorphous soot is deposited on a receptor surface where, either substantially simultaneously with or subsequently to its deposition, the soot is consolidated into a body of fused silica glass.

대표청구항

[ What is claimed is:] [11.]11. A method of manufacturing silica comprising the step of atomizing a liquid siloxane feedstock with a gas having an oxygen content greater than about 50 percent by volume.

[ What is claimed is:] [11.]11. A method of manufacturing silica comprising the step of atomizing a liquid siloxane feedstock with a gas having an oxygen content greater than about 50 percent by volume.