Method of preparing colloidal sol of antimony oxide

Details Method of preparing colloidal sol of antimony oxide Method of preparing colloidal sol of antimony oxide

1977-04-07

1978-08-29

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

106 15FP, 252 81, 423 88, 423617, B01J 1300

Patent

active

041102479

ABSTRACT:
A method of preparing a colloidal aqueous dispersion of antimony pentoxide from substantially water-insoluble metal antimonate is described. The method comprises contacting an aqueous slurry of the metal antimonate with a cation exchange resin whereby the metal antimonate is converted to the colloidal antimony pentoxide. A preferred method involves passing the slurry of metal antimonate through a fluidized bed containing a cation exchange resin. The colloidal sols obtained in the prescribed manner are useful as flame retardants when combined with halogen compounds.

REFERENCES:
patent: 2727008 (1955-12-01), Iler
patent: 3860523 (1975-01-01), Petrow et al.
Sneed et al.: Comprehensive Inorganic Chemistry, vol. 5, Van Nostrand Co., Inc., Princeton, N.J., 1956, pp. 146, 148 & 149.
Rohm & Haas: "Helpful Hints in Ion Exchange Technology", Nov. 1974.

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