NO811525L - Fremgangsmaate ved oxygengassbleking av cellulosemasse - Google Patents
Fremgangsmaate ved oxygengassbleking av cellulosemasseInfo
- Publication number
- NO811525L NO811525L NO811525A NO811525A NO811525L NO 811525 L NO811525 L NO 811525L NO 811525 A NO811525 A NO 811525A NO 811525 A NO811525 A NO 811525A NO 811525 L NO811525 L NO 811525L
- Authority
- NO
- Norway
- Prior art keywords
- cellulosmass
- procedure
- oxygen gas
- gas whitening
- whitening
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
-
- 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
- D21C9/1068—Bleaching ; Apparatus therefor with O2
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8003407A SE434284B (sv) | 1980-05-07 | 1980-05-07 | Forfarande vid syrgasdelignifiering av kemiskt uppsluten cellulosamassa varvid aromatiska diaminer tillfores |
Publications (3)
Publication Number | Publication Date |
---|---|
NO811525L true NO811525L (no) | 1981-11-09 |
NO156250B NO156250B (no) | 1987-05-11 |
NO156250C NO156250C (no) | 1987-08-19 |
Family
ID=20340912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO811525A NO156250C (no) | 1980-05-07 | 1981-05-06 | Fremgangsmaate ved oxygengassbleking av cellulosemasse. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4372811A (no) |
JP (1) | JPS56169889A (no) |
AU (1) | AU539178B2 (no) |
CA (1) | CA1167206A (no) |
FI (1) | FI69134C (no) |
FR (1) | FR2482146A1 (no) |
NO (1) | NO156250C (no) |
NZ (1) | NZ196664A (no) |
SE (1) | SE434284B (no) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3923728A1 (de) * | 1989-07-18 | 1991-01-24 | Degussa | Verfahren zur stabilisierung der viskositaet von zellstoffen |
US6605350B1 (en) * | 1996-08-23 | 2003-08-12 | Weyerhaeuser Company | Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same |
US6331354B1 (en) | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
DE59704964D1 (de) * | 1997-05-30 | 2001-11-22 | Schoeller & Hoesch Papierfab | Verfahren zur Herstellung von gebleichten Spezialzellstoffen |
US6686040B2 (en) | 1999-02-24 | 2004-02-03 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell products |
US6797113B2 (en) * | 1999-02-24 | 2004-09-28 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell pulps method |
US6686039B2 (en) | 1999-02-24 | 2004-02-03 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell pulps |
US6685856B2 (en) | 1999-02-24 | 2004-02-03 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell products method |
DE10163303B4 (de) * | 2001-12-21 | 2004-04-01 | Rhodia Acetow Gmbh | Verfahren zur Verbesserung der Farbzahl von Celluloseestern |
WO2011098599A1 (en) | 2010-02-12 | 2011-08-18 | Dequest Ag | Method for pulp bleaching |
CN102381981B (zh) * | 2011-09-09 | 2013-12-04 | 南京理工大学 | 一种汽油用抗氧剂的合成方法 |
US11193237B2 (en) | 2017-09-11 | 2021-12-07 | Solenis Technologies, L.P. | Method for enhanced oxygen delignification of chemical wood pulps |
US11033867B2 (en) | 2017-09-27 | 2021-06-15 | Sustainable Fiber Technologies, LLC | Aqueous lignin and hemicellulose dispersion |
US11066588B2 (en) | 2017-11-21 | 2021-07-20 | Sustainable Fiber Technologies, LLC | Deicing composition comprising lignocellulosic byproducts |
US11091697B2 (en) | 2017-11-29 | 2021-08-17 | Sustainable Fiber Technologies, LLC | Dust suppressant and soil stabilization composition comprising lignocellulosic byproducts |
US11572474B2 (en) | 2020-05-22 | 2023-02-07 | Sustainable Fiber Technologies, LLC | Compositions comprising lignocellulosic byproducts for tire ballasts and associated methods |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2478379A (en) * | 1948-07-30 | 1949-08-09 | Hercules Powder Co Ltd | Cellulose bleaching |
SE360128C (sv) * | 1970-08-25 | 1983-10-31 | Mo Och Domsjoe Ab | Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali |
FI52877B (no) * | 1972-11-16 | 1977-08-31 | Ahlstroem Oy | |
US4089737A (en) * | 1974-02-18 | 1978-05-16 | Toyo Pulp Company, Ltd. | Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein |
GB1505529A (en) * | 1974-06-14 | 1978-03-30 | Mo Och Domsjoe Ab | Method for the oxygen-gas delignification of lignocellulosic material and apparatus for carrying out the method |
US4091749A (en) * | 1975-01-02 | 1978-05-30 | Macmillan Bloedel Limited | Alkaline pulping of lignocellulosic material with amine pretreatment |
JPS5228884A (en) * | 1975-08-29 | 1977-03-04 | Hitachi Ltd | Semiconductor laser device |
ZA773044B (en) * | 1976-06-02 | 1978-04-26 | Australian Paper Manufacturers | Improvements in pulping processes |
SE7904430L (sv) * | 1978-05-26 | 1979-11-27 | Monsanto Europe Sa | Massablekning |
US4248663A (en) * | 1978-07-05 | 1981-02-03 | Pulp And Paper Research Institute Of Canada | Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound |
-
1980
- 1980-05-07 SE SE8003407A patent/SE434284B/sv not_active IP Right Cessation
-
1981
- 1981-03-30 NZ NZ196664A patent/NZ196664A/xx unknown
- 1981-04-02 AU AU69029/81A patent/AU539178B2/en not_active Ceased
- 1981-04-15 JP JP5779281A patent/JPS56169889A/ja active Pending
- 1981-04-16 FI FI811195A patent/FI69134C/fi not_active IP Right Cessation
- 1981-05-04 US US06/260,436 patent/US4372811A/en not_active Expired - Fee Related
- 1981-05-06 FR FR8108965A patent/FR2482146A1/fr active Granted
- 1981-05-06 NO NO811525A patent/NO156250C/no unknown
- 1981-05-07 CA CA000377106A patent/CA1167206A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FI811195L (fi) | 1981-11-08 |
FI69134B (fi) | 1985-08-30 |
AU6902981A (en) | 1981-11-12 |
SE434284B (sv) | 1984-07-16 |
NZ196664A (en) | 1983-06-14 |
NO156250C (no) | 1987-08-19 |
AU539178B2 (en) | 1984-09-13 |
FI69134C (fi) | 1985-12-10 |
NO156250B (no) | 1987-05-11 |
FR2482146A1 (fr) | 1981-11-13 |
CA1167206A (en) | 1984-05-15 |
SE8003407L (sv) | 1981-11-08 |
FR2482146B1 (no) | 1983-12-02 |
JPS56169889A (en) | 1981-12-26 |
US4372811A (en) | 1983-02-08 |
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