Menetelmä selluloosan katalyyttiseksi hapettamiseksi ja menetelmä selluloosatuotteen valmistamiseksi.

Cellulose is oxidized catalytically using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical. The oxidation is performed in a reaction medium which is at medium consistency of cellulosic pulp, which is above 6 %, more preferably equal to or higher than 8 %, and most preferably in the range of 8–12 %. The reaction medium is mixed in a reactor through circulation of the reaction medium back to the reactor.