Method for the surface treatment of glass by leaching

Details Method for the surface treatment of glass by leaching Method for the surface treatment of glass by leaching

1977-02-09

1978-08-15

Kellogg, Arthur D.

Stock material or miscellaneous articles

Composite

Of quartz or glass

65 31, 65 60D, C03C 1500

Patent

active

041073886

ABSTRACT:
In the method for the removal of alkalies from glass surfaces and articles by reaction with hydrofluoric acid, the glass surface is contacted with a gas stream containing a compound of fluorine and silicium, preferably silicium tetrafluoride, and water in a predetermined ratio, the treatment being carried out at high temperature. Depending on the treatment conditions, a deposition of finely divided silica onto the glass surface under treatment can be obtained.

REFERENCES:
patent: 2490662 (1949-12-01), Thomsen

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