Process for the preparation of amorphous silica

Details Process for the preparation of amorphous silica Process for the preparation of amorphous silica

1992-12-24

1994-04-12

Chaudhuri, Olik

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

134 2, 501141, C01B 3312

Patent

active

053023641

ABSTRACT:
The invention provides a process for the production of a high grade amorphous silica having a purity of at least 90% active silica of the formula SiO.sub.2.nH.sub.2 O, comprising the steps of:

REFERENCES:
patent: 4401638 (1983-08-01), Caballero et al.
patent: 4804422 (1989-02-01), Papanikolau et al.
patent: 4818510 (1989-04-01), Jung
patent: 4952246 (1990-08-01), Seeley
patent: 4956509 (1990-09-01), Englisch et al.
patent: 5037625 (1991-08-01), Loritsch et al.
patent: 5102837 (1992-04-01), Balkany et al.

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