Process for producing colloidal antimony oxide

Details Process for producing colloidal antimony oxide Process for producing colloidal antimony oxide

C - Chemistry, Metallurgy

01

G

23/231, 134/51

C01G 30/00 (2006.01) B01J 13/00 (2006.01)

Patent

CA 1080437

ABSTRACT OF THE DISCLOSURE Colloidal antimony oxide is continuously produced by passing an aqueous dispersion containing antimony trioxide and hydrogen peroxide through a heated tube-type reactor. The very fine antimony pentoxide produced by the novel process of the invention is much finer than any antimony oxide produced in the prior art which is used together with organic chlorides, bromides and other halogen- containing compounds to make fabrics, fibres, plastics, etc. flame-retardant. The antimony oxide produced by the present invention avoids various problems encountered with antimony oxide of large particle size of the prior art, such as deterioration of texture, lustre, transparency and other physical properties of the products with which the antimony oxide is used.

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