Azo-type compound granules

Details Azo-type compound granules Azo-type compound granules

C - Chemistry, Metallurgy

07

C

C07C 255/65 (2006.01)

Patent

CA 2347161

The invention concerns a composition comprising an azo compound in the form of granules with size ranging between 200 µm and 10 mm whereof the cumulative volume of pores ranges between 0.2 and 2 ml/g. The invention also concerns the method for preparing said composition which consists in: wetting a powder comprising said azo compound; granulating it by passing it under mechanical stress through a die; and drying the resulting granules at a temperature less than 45 ·C.

Composition comprenant un composé azoïque sous forme de granulés de taille comprise entre 200 µm et 10 mm dont le volume cumulé de pores est compris entre 0,2 et 2 ml/g. Procédé de préparation de cette composition comprenant l'humidification d'une poudre comprenant ledit composé azoïque, sa granulation par passage sous contrainte mécanique au travers d'une filière et le séchage des granulés obtenus à une température inférieure à 45 ~C.

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