C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 15/10 (2006.01)
Patent
CA 2432559
The invention relates to a method for increasing the inner stability of encapsulated and non-encapsulated sodium percarbonate. According to the invention, particulate, dry sodium percarbonate is treated for at least 2 minutes at a temperature of 70 to 120 ~C and during the treatment, the air surrounding the particles is exchanged, in order to maintain or reduce humidity.
L'invention concerne un procédé permettant d'augmenter la stabilité interne de percarbonate de sodium enrobé et non enrobé. Selon l'invention, on traite du percarbonate de sodium particulaire sec pendant au moins 2 minutes à une température comprise entre 70 et 120 ·C, l'air entourant les particules étant changé pendant le traitement pour maintenir constante ou baisser l'humidité.
Hessberger Waldemar
Jakob Harald
Kaiser Lothar
Lattich Jurgen
Overdick Ralph
Degussa Ag
Evonik Degussa Gmbh
Marks & Clerk
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