公开(公告)号：US20070125507A1

公开(公告)日：2007-06-07

申请号：US11606190

申请日：2006-11-29

Applicant: Karin Walter ,  Eva Wackerberg ,  Magnus Paulsson

Inventor： Karin Walter ,  Eva Wackerberg ,  Magnus Paulsson

IPC: D21C1/02 ,  D21B1/16

CPC classification number: D21B1/16 ,  D21C1/08 ,  D21C9/10

Abstract: 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 oxidising 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; and b) 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).

Abstract translation: 本发明涉及一种制备高产量纸浆的方法，其包括：a）通过氧化系统化学处理含木素纤维素的材料，所述氧化系统包含至少一种基本上不含臭氧和二氧化氯的非酶催化剂和在pH 约2至约6.5; 和b）在机械处理含木素纤维素的材料足以产生高产量纸浆的时间，其中含木素纤维素的材料在任何机械处理阶段之前和/或期间进行化学处理，并且其中含木素纤维素的材料不经化学处理 在阶段a）和b）之间的约11.5至约14的pH。