Process for preparing stable positively charged alumina coated s

Details Process for preparing stable positively charged alumina coated s Process for preparing stable positively charged alumina coated s

1973-07-30

1976-05-11

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

106287S, 252317, B01J 1300

Patent

active

039561712

ABSTRACT:
Stable sols of positively charged colloidal silica are prepared from a water soluble basic aluminum salt and a negatively charged colloidal silica sol by introducing into the reaction mixture a carbonate, bicarbonate or phosphate salt which is soluble in the reaction mixture or a mixture of any of them.

REFERENCES:
patent: 2276314 (1942-03-01), Kirk
patent: 2663650 (1953-12-01), Iler
patent: 2978349 (1961-04-01), Walsh et al.
patent: 3007878 (1961-11-01), Alexander et al.

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