Production of stable aqueous silica sol

Details Production of stable aqueous silica sol Production of stable aqueous silica sol

1991-01-15

1993-03-23

Chaudhuri, Olik

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

2523132, 423329, 423338, B01J 1300, C01B 3314

Patent

active

051961776

ABSTRACT:
A sol of flat silica particles (100-1000 nm in size) is produced by the following steps (a) to (d) from an acidic aqueous sol (S.sub.0) of negatively charged silica particles (7-30 nm in diameter) and an aqueous solution (B) of basic aluminum or zirconium salt.

REFERENCES:
patent: 2574902 (1951-11-01), Bechtold et al.
patent: 2577485 (1951-12-01), Rule
patent: 2801902 (1951-10-01), Alexander et al.
patent: 4217240 (1980-08-01), Bergna
patent: 5100581 (1992-03-01), Watanabe et al.
Iler, Ralph K., "The Chemistry of Silica, Solubility, Polymerization, Colloid and Surface Properties, and Biochemistry." pp. 363-364 (1979).

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