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

B - Operations, Transporting

01

F

134/51, 6/18.5

B01F 3/12 (2006.01) C01G 30/00 (2006.01) C08K 3/22 (2006.01)

Patent

CA 1103549

ABSTRACT OF THE DISCLOSURE 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 of metal antimonate through a fluidized bed containing a prescribed manner are useful as flame retardants when combined with halogen compounds.

300540

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