Process for producing high-purity silica glass

Details Process for producing high-purity silica glass Process for producing high-purity silica glass

1982-02-01

1983-09-27

Fisher, Richard V.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 312, 65 32, C03B 1906, C03B 2000

Patent

active

044066805

ABSTRACT:
A process for producing high-purity silica glass wherein glass-forming chlorides, hydrogen gas, oxygen and an inert gas are supplied from a glass burner, the chlorides are decomposed by flame oxidation to form fine grains of glass which are deposited on a starting member and the glass deposit is sintered to provide a transparent vitreous substance, the volume ratio of oxygen gas to the sum of the chlorides and hydrogen gas being greater than about 0.6, preferably greater than about 1.0, and less than about 20.

REFERENCES:
patent: 3459522 (1969-08-01), Elmer et al.
patent: 3933454 (1976-01-01), De Luca
patent: 4038370 (1977-07-01), Tokimoto et al.
patent: 4099835 (1978-07-01), French et al.
patent: 4161505 (1979-07-01), Shiraishi et al.
patent: 4224046 (1980-09-01), Izawa et al.

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