NO874276L - PROCEDURE FOR DELIGNIFICATION AND WHITING OF A LIGNOCELLULOS MASS WITH OXYGEN AND ALKALI. - Google Patents
PROCEDURE FOR DELIGNIFICATION AND WHITING OF A LIGNOCELLULOS MASS WITH OXYGEN AND ALKALI.Info
- Publication number
- NO874276L NO874276L NO874276A NO874276A NO874276L NO 874276 L NO874276 L NO 874276L NO 874276 A NO874276 A NO 874276A NO 874276 A NO874276 A NO 874276A NO 874276 L NO874276 L NO 874276L
- Authority
- NO
- Norway
- Prior art keywords
- lignocellulos
- delignification
- whiting
- alkali
- oxygen
- Prior art date
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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61241518A JPH0768675B2 (en) | 1986-10-13 | 1986-10-13 | Oxygen delignification and bleaching method for cellulose pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
NO874276D0 NO874276D0 (en) | 1987-10-13 |
NO874276L true NO874276L (en) | 1988-04-14 |
Family
ID=17075535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO874276A NO874276L (en) | 1986-10-13 | 1987-10-13 | PROCEDURE FOR DELIGNIFICATION AND WHITING OF A LIGNOCELLULOS MASS WITH OXYGEN AND ALKALI. |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH0768675B2 (en) |
FI (1) | FI874478A (en) |
NO (1) | NO874276L (en) |
SE (1) | SE8703929L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5011572A (en) * | 1989-05-19 | 1991-04-30 | Fmc Corporation | Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage |
AT404740B (en) | 1989-10-30 | 1999-02-25 | Chemiefaser Lenzing Ag | Process for the chlorine-free bleaching of pulps |
SE522593C2 (en) * | 1999-07-06 | 2004-02-24 | Kvaerner Pulping Tech | Oxygen gas delignification system and method of pulp of lignocellulosic material |
EP1813345A1 (en) * | 2006-01-30 | 2007-08-01 | Sulzer Pumpen Ag | Method and apparatus for controlling the efficiency of mixing |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS539286A (en) * | 1976-07-13 | 1978-01-27 | Matsushita Electric Ind Co Ltd | Production of catalyst body |
US4363697A (en) * | 1979-12-03 | 1982-12-14 | The Black Clawson Company | Method for medium consistency oxygen delignification of pulp |
-
1986
- 1986-10-13 JP JP61241518A patent/JPH0768675B2/en not_active Expired - Lifetime
-
1987
- 1987-10-12 SE SE8703929A patent/SE8703929L/en unknown
- 1987-10-12 FI FI874478A patent/FI874478A/en not_active Application Discontinuation
- 1987-10-13 NO NO874276A patent/NO874276L/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO874276D0 (en) | 1987-10-13 |
SE8703929D0 (en) | 1987-10-12 |
JPS6399389A (en) | 1988-04-30 |
SE8703929L (en) | 1988-04-14 |
FI874478A (en) | 1988-04-14 |
FI874478A0 (en) | 1987-10-12 |
JPH0768675B2 (en) | 1995-07-26 |
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