Process of producing high-yield pulp

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United States of America Patent

PATENT NO 8268122
APP PUB NO 20070125507A1
SERIAL NO

11606190

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Abstract

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The present invention relates to a process for preparing a high-yield pulp comprising

    a) treating a lignocellulose containing material chemically by means of an oxidizing system comprising at least one non-enzymatic oxidant substantially free from ozone and chlorine dioxide and an activator at a pH from about 2 to about 6.5; andb) treating the lignocellulose containing material mechanically for a time sufficient to produce a high-yield pulp, wherein the lignocellulose containing material is chemically treated prior to and/or during any mechanical treatment stage, and wherein the lignocellulose containing material is not chemically treated at a pH from about 11.5 to about 14 between stages a) and b).

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Patent Owner(s)

Patent OwnerAddress
AKZO NOBEL CHEMICALS INTERNATIONAL B V6824 BM ARNHEM

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Paulsson, Magnus Lars Goteborg, SE 1 70
Wackerberg, Eva Linnea Elisabeth Goteborg, SE 1 70
Walter, Karin Susanne Maria Goteborg, SE 1 70

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