Title:
【発明の名称】酸素による脱リグニンと酵素処理によるリグノセルロースの漂白方法
Document Type and Number:
Japanese Patent JP2731617
Kind Code:
B2
Abstract:
Process for bleaching lignocellulosic material comprising an oxygen bleaching treatment and an enzymatic treatment with a substantially cellulase-free xylanase which process is compatible with, and can be incorporated into, conventional bleaching sequences. The process provides a delignified and bleached pulp using lower amounts of chlorine-containing compounds, and the opportunity of eliminating the use of elemental chlorine, thereby reducing the polluting effluent from a pulp mill employing the process. Also, a greater extent of delignification can be achieved while retaining acceptable pulp strength properties.
Inventors:
MANOAA JON RICHAADO
DABURUSUTEN HOORU
DABURUSUTEN HOORU
Application Number:
JP2976890A
Publication Date:
March 25, 1998
Filing Date:
February 13, 1990
Export Citation:
Assignee:
SHII AI ERU INC
International Classes:
C12N9/24; D21C5/00; D21C9/00; C12S3/08; D21C9/10; D21C9/147; (IPC1-7): D21C9/10; C12S3/08; D21C9/147
Attorney, Agent or Firm:
Shigeru Yagita (2 outside)