FI953000A - Menetelmä ja laite puumassan valkaisun säätelemiseksi - Google Patents
Menetelmä ja laite puumassan valkaisun säätelemiseksi Download PDFInfo
- Publication number
- FI953000A FI953000A FI953000A FI953000A FI953000A FI 953000 A FI953000 A FI 953000A FI 953000 A FI953000 A FI 953000A FI 953000 A FI953000 A FI 953000A FI 953000 A FI953000 A FI 953000A
- Authority
- FI
- Finland
- Prior art keywords
- wood pulp
- pulp bleaching
- controlling wood
- controlling
- bleaching
- 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
-
- 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
-
- 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
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US99318692A | 1992-12-18 | 1992-12-18 | |
PCT/US1993/012135 WO1994015018A1 (en) | 1992-12-18 | 1993-12-13 | Method and apparatus for regulating wood pulp bleaching |
Publications (2)
Publication Number | Publication Date |
---|---|
FI953000A true FI953000A (fi) | 1995-06-16 |
FI953000A0 FI953000A0 (fi) | 1995-06-16 |
Family
ID=25539200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI953000A FI953000A0 (fi) | 1992-12-18 | 1995-06-16 | Menetelmä ja laite puumassan valkaisun säätelemiseksi |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0674731A4 (fi) |
CA (1) | CA2151813A1 (fi) |
FI (1) | FI953000A0 (fi) |
WO (1) | WO1994015018A1 (fi) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5810973A (en) * | 1993-09-21 | 1998-09-22 | Beloit Technologies, Inc. | Apparatus for producing small particles from high consistency wood pulp |
US5736004A (en) * | 1995-03-03 | 1998-04-07 | Union Camp Patent Holding, Inc. | Control scheme for rapid pulp delignification and bleaching |
US5672247A (en) * | 1995-03-03 | 1997-09-30 | Union Camp Patent Holding, Inc. | Control scheme for rapid pulp delignification and bleaching |
US5944952A (en) * | 1995-07-26 | 1999-08-31 | Beloit Technologies, Inc. | Method for bleaching high consistency pulp with a gaseous bleaching reagent |
BR9609840A (pt) * | 1995-07-26 | 1999-03-09 | Beloit Technologies Inc | Processo e aparelho para alvejamento de polpa com reagente de alvejamento gasoso |
US6077396A (en) * | 1997-05-16 | 2000-06-20 | Lariviere; Christopher J. | Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3964962A (en) * | 1974-02-25 | 1976-06-22 | Ingersoll-Rand Company | Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit |
US4581104A (en) * | 1983-08-11 | 1986-04-08 | Ingersoll-Rand Company | Method of reducing the lignin in wood pulp with oxygen gas recirculation |
US5188708A (en) * | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
AT395180B (de) * | 1989-08-16 | 1992-10-12 | Andritz Ag Maschf | Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung |
US5174861A (en) * | 1990-10-26 | 1992-12-29 | Union Camp Patent Holdings, Inc. | Method of bleaching high consistency pulp with ozone |
EP0492040A1 (en) * | 1990-12-21 | 1992-07-01 | Kamyr, Inc. | Tumbling ozone reactor for paper pulp |
-
1993
- 1993-12-13 CA CA 2151813 patent/CA2151813A1/en not_active Abandoned
- 1993-12-13 WO PCT/US1993/012135 patent/WO1994015018A1/en not_active Application Discontinuation
- 1993-12-13 EP EP94903630A patent/EP0674731A4/en not_active Withdrawn
-
1995
- 1995-06-16 FI FI953000A patent/FI953000A0/fi unknown
Also Published As
Publication number | Publication date |
---|---|
CA2151813A1 (en) | 1994-07-07 |
EP0674731A4 (en) | 1997-06-18 |
FI953000A0 (fi) | 1995-06-16 |
EP0674731A1 (en) | 1995-10-04 |
WO1994015018A1 (en) | 1994-07-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GB | Transfer or assigment of application |
Owner name: BELOIT TECHNOLOGIES, INC. |