Method for producing fused silica with low sodium ion contaminat

Details Method for producing fused silica with low sodium ion contaminat Method for producing fused silica with low sodium ion contaminat

1993-12-16

1995-03-07

Silbaugh, Jan H.

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

65 6052, 6537413, 65 174, 423336, C03B 1906

Patent

active

053954130

ABSTRACT:
A method of producing a fused silica product comprising introducing a silicon-containing, organometallic compound into a flame to form molten silica particles, and collecting the molten silica particles in a furnace having a crown and cup such that a fused silica product is obtained, wherein at least the furnace crown is formed from a porous, fired, zircon refractory having a sodium ion content of less than 30 ppm. The fused silica product produced by the method has a sodium ion contamination level below 100 parts per billion.

REFERENCES:
patent: 2239551 (1941-04-01), Dalton et al.
patent: 2272342 (1942-02-01), Hyde
patent: 5043002 (1991-08-01), Dobbins et al.
patent: 5152819 (1992-10-01), Blackwell et al.

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