SE7509732L - Sett att tvetta cellulosamassa fran ett alkaliskt kok - Google Patents
Sett att tvetta cellulosamassa fran ett alkaliskt kokInfo
- Publication number
- SE7509732L SE7509732L SE7509732A SE7509732A SE7509732L SE 7509732 L SE7509732 L SE 7509732L SE 7509732 A SE7509732 A SE 7509732A SE 7509732 A SE7509732 A SE 7509732A SE 7509732 L SE7509732 L SE 7509732L
- Authority
- SE
- Sweden
- Prior art keywords
- washing
- stage
- cellulosa
- wash
- mass
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI2578/74A FI52876C (fi) | 1974-09-03 | 1974-09-03 | Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7509732L true SE7509732L (sv) | 1976-03-04 |
SE420512B SE420512B (sv) | 1981-10-12 |
Family
ID=8507291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7509732A SE420512B (sv) | 1974-09-03 | 1975-09-02 | Sett att tvetta cellulosamassa fran ett alkatiskt kok |
Country Status (8)
Country | Link |
---|---|
US (1) | US4042452A ( ) |
JP (1) | JPS5149906A ( ) |
AU (1) | AU497403B2 ( ) |
BR (1) | BR7505551A ( ) |
CA (1) | CA1070058A ( ) |
FI (1) | FI52876C ( ) |
FR (1) | FR2283989A1 ( ) |
SE (1) | SE420512B ( ) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4269656A (en) * | 1980-04-02 | 1981-05-26 | Ingersoll-Rand Company | Wood pulp forming system and method of recovering spent chemicals |
US5429717A (en) * | 1986-12-22 | 1995-07-04 | Aga Aktiebolag | Method of washing of alkaline pulp by adding carbon dioxide to the pulp |
SE8605510L (sv) * | 1986-12-22 | 1987-09-17 | Aga Ab | Sett vid tvettning av massa |
JPH0778315B2 (ja) * | 1986-12-22 | 1995-08-23 | エーヂーエー アクチボラグ | アルカリ法パルプの洗浄方法 |
EP0296198B1 (en) * | 1986-12-22 | 1991-09-18 | Aga Aktiebolag | Method for washing of alcaline pulp |
FR2620144B1 (fr) * | 1987-09-08 | 1989-12-08 | Liquid Air Canada | Procede de fabrication de pate a papier blanchie comportant un traitement a l'aide d'acide carbonique apres blanchiment |
US5139613A (en) * | 1988-01-21 | 1992-08-18 | Canadian Liquid Air Limited | Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pulp |
US4975148A (en) * | 1988-12-06 | 1990-12-04 | Ahlstromforetagen Svenska Ab | Cold blow system for batch production of pulp |
US5853535A (en) * | 1991-01-28 | 1998-12-29 | Champion International Corporation | Process for manufacturing bleached pulp including recycling |
US5938892A (en) * | 1991-01-28 | 1999-08-17 | Champion International Corporation | Process for recycling bleach plant filtrate |
US5352332A (en) * | 1991-01-28 | 1994-10-04 | Maples Gerald E | Process for recycling bleach plant filtrate |
US6245196B1 (en) | 1999-02-02 | 2001-06-12 | Praxair Technology, Inc. | Method and apparatus for pulp yield enhancement |
FI117391B (fi) * | 2000-05-16 | 2006-09-29 | Andritz Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
JP4825709B2 (ja) * | 2007-03-15 | 2011-11-30 | 三菱製紙株式会社 | 発泡及びピッチトラブル抑制方法 |
CA2793941C (en) * | 2010-03-23 | 2015-08-18 | International Paper Company | Improved bctmp filtrate recycling system and method |
SE541198C2 (en) * | 2016-11-02 | 2019-04-30 | Winnington Ab | Defibrated tobacco raw material |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1683262A (en) * | 1927-04-19 | 1928-09-04 | Brown Co | Process of chemically treating and washing pulp |
US1798987A (en) * | 1928-09-01 | 1931-03-31 | Champion Fibre Company | Process for the manufacture of a resistant pulp for paper making |
US2745712A (en) * | 1953-10-22 | 1956-05-15 | Improved Machinery Inc | Process for countercurrent washing of cooking liquor out of pulp |
US3308012A (en) * | 1963-08-19 | 1967-03-07 | Du Pont | Use of sulfamic acid in chlorination step of multistage bleaching process |
GB1217833A (en) * | 1967-01-16 | 1970-12-31 | Electric Reduction Co | Improved cellulosic pulp process |
US3829357A (en) * | 1968-11-20 | 1974-08-13 | Inst Paper Chem | Oxidative manufacture of pulp with chlorine dioxide |
US3919041A (en) * | 1969-02-06 | 1975-11-11 | Ethyl Corp | Multi-stage chlorine dioxide delignification of wood pulp |
-
1974
- 1974-09-03 FI FI2578/74A patent/FI52876C/fi active
-
1975
- 1975-08-26 AU AU84267/75A patent/AU497403B2/en not_active Expired
- 1975-08-27 US US05/608,034 patent/US4042452A/en not_active Expired - Lifetime
- 1975-08-29 JP JP50105583A patent/JPS5149906A/ja active Pending
- 1975-08-29 BR BR7505551*A patent/BR7505551A/pt unknown
- 1975-09-02 SE SE7509732A patent/SE420512B/xx not_active IP Right Cessation
- 1975-09-02 CA CA234,520A patent/CA1070058A/en not_active Expired
- 1975-09-03 FR FR7526998A patent/FR2283989A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FI257874A ( ) | 1976-03-04 |
CA1070058A (en) | 1980-01-22 |
SE420512B (sv) | 1981-10-12 |
BR7505551A (pt) | 1976-08-03 |
FR2283989B1 ( ) | 1980-11-14 |
US4042452A (en) | 1977-08-16 |
AU497403B2 (en) | 1978-12-14 |
FI52876C (fi) | 1978-10-17 |
JPS5149906A ( ) | 1976-04-30 |
FR2283989A1 (fr) | 1976-04-02 |
FI52876B ( ) | 1977-08-31 |
AU8426775A (en) | 1977-03-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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