Aga Aktiebolag

Anders Tor J&ouml;rgen Engstr&ouml;m

Anna Tigerstr&ouml;m

The invention refers to a method for an integrated treatment of cellulose pulp. The method includes the steps: providing said cellulose pulp ( ), providing a determined quantity of white liquor ( ) including alkali and sulphur components, providing an oxygen-containing gas, oxidizing ( ) the sulphur components of the white liquor by the supply of a part of said gas in such a way that at least a part of the sulphur is present in the form of sulphate, transporting the cellulose pulp having a certain kappa number to at least one mixing device ( ), and supplying the oxidized white liquor from the oxidizing step to the cellulose pulp, supplying a part of said gas to the cellulose pulp in said mixing device, mixing the cellulose pulp with the oxidized white liquor and said gas in said mixing device, and transporting the cellulose pulp from said mixing device to a delignification reactor ( ) for oxygen delignification of said cellulose pulp, wherein the kappa number is reduced.

Growing community of inventors

Knivsta, Sweden

Anders Tor Jörgen Engström

Growing community of inventors

Knivsta, Sweden

Anders Tor J&ouml;rgen Engstr&ouml;m

Anders Tor Jörgen Engström