FI892741A0 - Sätt att framställa massa - Google Patents
Sätt att framställa massaInfo
- Publication number
- FI892741A0 FI892741A0 FI892741A FI892741A FI892741A0 FI 892741 A0 FI892741 A0 FI 892741A0 FI 892741 A FI892741 A FI 892741A FI 892741 A FI892741 A FI 892741A FI 892741 A0 FI892741 A0 FI 892741A0
- Authority
- FI
- Finland
- Prior art keywords
- ways
- make pulp
- pulp
- make
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/10—Physical methods for facilitating impregnation
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8802089 | 1988-06-06 | ||
SE8802089A SE461280B (sv) | 1988-06-06 | 1988-06-06 | Behandling av ett fiberhaltigt material foere kokning till massa |
Publications (4)
Publication Number | Publication Date |
---|---|
FI892741A0 true FI892741A0 (sv) | 1989-06-05 |
FI892741A FI892741A (sv) | 1989-12-07 |
FI92721B FI92721B (sv) | 1994-09-15 |
FI92721C FI92721C (sv) | 1994-12-27 |
Family
ID=20372522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI892741A FI92721C (sv) | 1988-06-06 | 1989-06-05 | Sätt att framställa massa |
Country Status (11)
Country | Link |
---|---|
US (1) | US4968385A (sv) |
CN (1) | CN1030725C (sv) |
AR (1) | AR246991A1 (sv) |
AT (1) | AT394584B (sv) |
AU (1) | AU613189B2 (sv) |
BR (1) | BR8902634A (sv) |
CA (1) | CA1327104C (sv) |
DE (1) | DE3915544C2 (sv) |
FI (1) | FI92721C (sv) |
MX (1) | MX171805B (sv) |
SE (1) | SE461280B (sv) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2670512A1 (fr) * | 1990-12-17 | 1992-06-19 | Int Patents Corp | Systeme d'alimentation en plantes annuelles ou copeaux de bois pour un reacteur de cuisson continu sous pression destine a la production de pate cellulosique. |
US5718802A (en) * | 1992-11-16 | 1998-02-17 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Process for obtaining cellulosic fiber bundles at least 2.5 cm long from plant stalk rind |
US5338366A (en) * | 1993-01-04 | 1994-08-16 | Kamyr, Inc. | Acid pre-hydrolysis reactor system |
FI103418B1 (sv) * | 1996-01-31 | 1999-06-30 | Sunds Defibrator Woodhandling | Förfarande och anordning för förbehandling av fibermaterial för tillverkning av cellulosamassa |
US5753075A (en) * | 1996-10-25 | 1998-05-19 | Stromberg; C. Bertil | Method and system for feeding comminuted fibrous material |
US6325890B1 (en) * | 1996-10-25 | 2001-12-04 | Andritz-Ahlstrom Inc. | Feeding comminuted fibrous material |
SE528571C2 (sv) * | 2005-03-23 | 2006-12-19 | Kvaerner Pulping Tech | Arrangemang för matning av en flissuspension från ett kärl till en kokare |
GB201203651D0 (en) * | 2012-03-01 | 2012-04-18 | Cellucomp Ltd | Cellulose compositions, methods of preparing cellulose compositions and products comprising cellulose compositions |
CN103233383A (zh) * | 2013-04-23 | 2013-08-07 | 杨金福 | 一种超高粘度精制棉的生产工艺 |
CN106835787B (zh) * | 2017-02-06 | 2019-03-01 | 东北林业大学 | 一种玉米秸秆湿法除髓方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913362A (en) * | 1954-06-14 | 1959-11-17 | Internat Pulp Products Inc | Method of producing cellulosic pulp |
US2975096A (en) * | 1957-11-18 | 1961-03-14 | Bauer Bros Co | Impregnation of wood chips |
US3096234A (en) * | 1958-10-29 | 1963-07-02 | Nolan | Continuous digesting system |
US3081218A (en) * | 1960-03-18 | 1963-03-12 | Harold R Ambuehl | Continuous pulping process for the production of paper products |
US3620911A (en) * | 1969-07-03 | 1971-11-16 | Beloit Corp | Wet depithing of a nonwoody lignocellulosic plant material |
FI62872C (fi) * | 1978-06-06 | 1983-03-10 | Ahlstroem Oy | Anordning foer silning av fibersuspensioner |
US4259150A (en) * | 1978-12-18 | 1981-03-31 | Kamyr Inc. | Plural stage mixing and thickening oxygen bleaching process |
-
1988
- 1988-06-06 SE SE8802089A patent/SE461280B/sv not_active IP Right Cessation
-
1989
- 1989-05-12 DE DE3915544A patent/DE3915544C2/de not_active Expired - Fee Related
- 1989-05-17 AU AU34864/89A patent/AU613189B2/en not_active Ceased
- 1989-05-23 AT AT0124289A patent/AT394584B/de not_active IP Right Cessation
- 1989-05-25 US US07/356,352 patent/US4968385A/en not_active Expired - Fee Related
- 1989-05-30 AR AR89314043A patent/AR246991A1/es active
- 1989-06-05 CA CA000601809A patent/CA1327104C/en not_active Expired - Fee Related
- 1989-06-05 FI FI892741A patent/FI92721C/sv not_active IP Right Cessation
- 1989-06-05 CN CN89103950.3A patent/CN1030725C/zh not_active Expired - Fee Related
- 1989-06-05 MX MX016323A patent/MX171805B/es unknown
- 1989-06-06 BR BR898902634A patent/BR8902634A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
BR8902634A (pt) | 1990-01-23 |
AU3486489A (en) | 1989-12-07 |
CN1038849A (zh) | 1990-01-17 |
FI92721B (sv) | 1994-09-15 |
AT394584B (de) | 1992-05-11 |
SE8802089L (sv) | 1989-12-07 |
SE461280B (sv) | 1990-01-29 |
FI92721C (sv) | 1994-12-27 |
FI892741A (sv) | 1989-12-07 |
CN1030725C (zh) | 1996-01-17 |
DE3915544C2 (de) | 1993-11-11 |
AU613189B2 (en) | 1991-07-25 |
US4968385A (en) | 1990-11-06 |
ATA124289A (de) | 1991-10-15 |
MX171805B (es) | 1993-11-16 |
SE8802089D0 (sv) | 1988-06-06 |
DE3915544A1 (de) | 1989-12-07 |
CA1327104C (en) | 1994-02-22 |
AR246991A1 (es) | 1994-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: KVAERNER PULPING TECHNOLOGIES AKTIEBOLAG |
|
BB | Publication of examined application | ||
HC | Name/ company changed in application |
Owner name: KVAERNER PULPING TECHNOLOGIES AKTIEBOLAG |
|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: KVAERNER PULPING TECHNOLOGIES AB |