Title:
セルロース系材料の炭酸塩前処理およびパルプ化の方法
Document Type and Number:
Japanese Patent JP2009537705
Kind Code:
A
Abstract:
A method of pretreating comminuted fibrous material with sodium carbonate and then cooking the pretreated material in the presence of anthraquinone (AQ) is provided. The resulting pulp produced has a higher yield, enhanced strength, and better bleachability compared to pulp produced by prior art methods. AQ may also be introduced to the carbonate pretreatment stage. The method may further include an acid pretreatment providing further enhanced properties to the pulp produced.
Inventors:
Francis, Raymond
Shin, Namhi
Shin, Namhi
Application Number:
JP2009511236A
Publication Date:
October 29, 2009
Filing Date:
May 17, 2007
Export Citation:
Assignee:
Albert Einstein College of Medicine, INC.
International Classes:
D21C3/00; D21C1/06
Domestic Patent References:
| JPH04126885A | 1992-04-27 | |||
| JPS53139803A | 1978-12-06 | |||
| JPS63264991A | 1988-11-01 | |||
| JPH11286883A | 1999-10-19 | |||
| JPS5358004A | 1978-05-25 | |||
| JP2002536563A | 2002-10-29 | |||
| JPH04126885A | 1992-04-27 | |||
| JPS53139803A | 1978-12-06 | |||
| JPS63264991A | 1988-11-01 |
Attorney, Agent or Firm:
Kazuyoshi Tsujimoto
Nozomi Tsujimoto
Taneichi Jie
Nozomi Tsujimoto
Taneichi Jie