发明名称 OXIDISED WHITE LIQUOR IN AN OXYGEN DELIGNIFICATION PROCESS
摘要 The invention refers to a method for an integrated treatment of cellulose pulp. The method includes the steps: providing said cellulose pulp (1), providing a determined quantity of white liquor (2) including alkali and sulphur components, providing an oxygen-containing gas, oxidising (5) 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 (4), and supplying the oxidised white liquor from the oxidising step to the cellulose pulp, supplying a part of said gas to the cellulose pulp in said mixing device, mixing the cellulos e pulp with the oxidised white liquor and said gas in said mixing device, and transporting the cellulose pulp from said mixing device t o a delignification reactor (6) for oxygen delignification of said cellulose pulp, wherein the kappa number is reduced.
申请公布号 CA2384471(C) 申请公布日期 2009.08.04
申请号 CA20002384471 申请日期 2000.09.18
申请人 AGA AKTIEBOLAG 发明人 ENGSTROM, TOR ANDERS JORGEN;TIGERSTROM, ANNA
分类号 D21C11/00;D21C9/147 主分类号 D21C11/00
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