EP0864689A3 - Composition d'additive et procédé pour la réduction de la demande d'anthraquinone dans des matériaux lignocellulosiques - Google Patents
Composition d'additive et procédé pour la réduction de la demande d'anthraquinone dans des matériaux lignocellulosiques Download PDFInfo
- Publication number
- EP0864689A3 EP0864689A3 EP98400568A EP98400568A EP0864689A3 EP 0864689 A3 EP0864689 A3 EP 0864689A3 EP 98400568 A EP98400568 A EP 98400568A EP 98400568 A EP98400568 A EP 98400568A EP 0864689 A3 EP0864689 A3 EP 0864689A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- anthraquinone
- amount
- pulping
- requirements
- additive composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Paper (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/814,680 US5871663A (en) | 1997-03-11 | 1997-03-11 | Additive composition for reducing anthraquinone requirements in pulping of lignocellulosic material |
US814375 | 1997-03-11 | ||
US08/814,375 US5871614A (en) | 1997-03-11 | 1997-03-11 | Process for reducing anthraquinone requirements in pulping of lignocellulosic material |
US814680 | 1997-03-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0864689A2 EP0864689A2 (fr) | 1998-09-16 |
EP0864689A3 true EP0864689A3 (fr) | 1999-06-16 |
Family
ID=27123839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400568A Withdrawn EP0864689A3 (fr) | 1997-03-11 | 1998-03-11 | Composition d'additive et procédé pour la réduction de la demande d'anthraquinone dans des matériaux lignocellulosiques |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0864689A3 (fr) |
CA (1) | CA2231313C (fr) |
NO (1) | NO980659L (fr) |
TW (1) | TW402652B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080105392A1 (en) * | 2006-11-03 | 2008-05-08 | Duggirala Prasad Y | Method and composition for improving fiber quality and process efficiency in mechanical pulping |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161345A (en) * | 1980-05-15 | 1981-12-11 | Nippon Jiyouriyuu Kogyo Kk | Readily-dispersible quinone composition and its preparation |
US4481073A (en) * | 1980-12-01 | 1984-11-06 | Kawasaki Kasei Chemicals Ltd. | Process for removing anthraquinone type scale |
US5032224A (en) * | 1989-03-27 | 1991-07-16 | Exxon Chemical Patent Inc. | Method of producing pulp |
JPH0633386A (ja) * | 1992-05-18 | 1994-02-08 | Nippon Jiyouriyuu Kogyo Kk | パルプ蒸解助剤組成物 |
US5298120A (en) * | 1992-06-09 | 1994-03-29 | Michael Blackstone | Composition for enhancing the pulping of wood chips |
-
1998
- 1998-02-17 NO NO980659A patent/NO980659L/no not_active Application Discontinuation
- 1998-03-05 CA CA002231313A patent/CA2231313C/fr not_active Expired - Fee Related
- 1998-03-11 EP EP98400568A patent/EP0864689A3/fr not_active Withdrawn
- 1998-09-07 TW TW087114856A patent/TW402652B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161345A (en) * | 1980-05-15 | 1981-12-11 | Nippon Jiyouriyuu Kogyo Kk | Readily-dispersible quinone composition and its preparation |
US4481073A (en) * | 1980-12-01 | 1984-11-06 | Kawasaki Kasei Chemicals Ltd. | Process for removing anthraquinone type scale |
US5032224A (en) * | 1989-03-27 | 1991-07-16 | Exxon Chemical Patent Inc. | Method of producing pulp |
JPH0633386A (ja) * | 1992-05-18 | 1994-02-08 | Nippon Jiyouriyuu Kogyo Kk | パルプ蒸解助剤組成物 |
US5298120A (en) * | 1992-06-09 | 1994-03-29 | Michael Blackstone | Composition for enhancing the pulping of wood chips |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 8204, Derwent World Patents Index; Class A97, AN 82-06736E, XP002100591 * |
DATABASE WPI Section Ch Week 9410, Derwent World Patents Index; Class A97, AN 94-080431, XP002100592 * |
Also Published As
Publication number | Publication date |
---|---|
CA2231313A1 (fr) | 1998-09-11 |
EP0864689A2 (fr) | 1998-09-16 |
CA2231313C (fr) | 2004-06-29 |
TW402652B (en) | 2000-08-21 |
NO980659D0 (no) | 1998-02-17 |
NO980659L (no) | 1998-09-14 |
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