公开(公告)号：US20040020854A1

公开(公告)日：2004-02-05

申请号：US10211043

申请日：2002-08-02

申请人： Rayonier, Inc.

发明人： Omar F. Ali ,  John T. Cenicola ,  Jian Li ,  Jay D. Taylor

IPC分类号： B01D061/00 ,  D21C003/02 ,  D21C011/10

CPC分类号： C08B1/00 ,  C08B1/08 ,  C08B1/10 ,  C08B1/12 ,  D21C9/004

摘要： Systems and methods by which to subject cellulosic fibers to alkaline treatment are provided. The systems and methods of the invention include equipment, such as nanofiltration units and slurry concentrators, which result in a lowered overall consumption of alkaline solution during alkaline treatment. The systems and methods of the invention further allow the components of hemicaustic streams produced by such alkaline treatments to be utilized in higher value end uses.

摘要翻译： 提供了使纤维素纤维进行碱处理的系统和方法。 本发明的系统和方法包括诸如纳米过滤单元和浆料浓缩器的设备，其在碱处理期间导致碱溶液的总消耗量降低。 本发明的系统和方法还允许通过这种碱处理产生的半透明气流的组分用于更高价值的最终用途。