Process for the preparation of precipitated silica

Details Process for the preparation of precipitated silica Process for the preparation of precipitated silica

1986-11-19

1988-04-19

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423335, C01B 3312

Patent

active

047388390

ABSTRACT:
Crystalline precipitated silica is produced by hydrolyzing silicon tetrachloride in the presence of fluoride ions at a temperature of up to 60.degree. C.

REFERENCES:
patent: 4073865 (1978-02-01), Flanigan et al.
Chemical Abstracts 105:28669k, Manufacture of Silica Aerosols, Eisbrenner et al., 7/28/86.
Nagaoka et al, Chem. Abs. 83:82194s (1975) (=Japanese Kokai No. 75-53298).

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