Defluorination of fumed silica

Details Defluorination of fumed silica Defluorination of fumed silica

1981-08-10

1982-12-14

Cooper, Jack

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

106288B, 423336, C01B 3318

Patent

active

043637922

ABSTRACT:
A process for defluorination of a fluoride-containing fumed silica, which comprises entraining the silica in a high velocity stream of steam at an elevated temperature for a few seconds and then separating the defluorinated silica from the steam, thereby obtaining a fumed silica product with a substantially reduced fluoride content.

REFERENCES:
patent: 3053627 (1962-09-01), Flemmert

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