JP2731822B2 - 木質セルロース材料特には紙パルプのオゾン処理方法とこの方法を実施する反応器 - Google Patents
木質セルロース材料特には紙パルプのオゾン処理方法とこの方法を実施する反応器Info
- Publication number
- JP2731822B2 JP2731822B2 JP63233374A JP23337488A JP2731822B2 JP 2731822 B2 JP2731822 B2 JP 2731822B2 JP 63233374 A JP63233374 A JP 63233374A JP 23337488 A JP23337488 A JP 23337488A JP 2731822 B2 JP2731822 B2 JP 2731822B2
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- reactor
- carrier gas
- treated
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- 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)
- Fertilizers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8712890 | 1987-09-17 | ||
FR8712890A FR2620744A1 (fr) | 1987-09-17 | 1987-09-17 | Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0197290A JPH0197290A (ja) | 1989-04-14 |
JP2731822B2 true JP2731822B2 (ja) | 1998-03-25 |
Family
ID=9354988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63233374A Expired - Lifetime JP2731822B2 (ja) | 1987-09-17 | 1988-09-17 | 木質セルロース材料特には紙パルプのオゾン処理方法とこの方法を実施する反応器 |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0308314B1 (fi) |
JP (1) | JP2731822B2 (fi) |
AT (1) | ATE82340T1 (fi) |
BR (1) | BR8804806A (fi) |
CA (1) | CA1314664C (fi) |
DE (2) | DE3875893T2 (fi) |
ES (1) | ES2035339T3 (fi) |
FI (1) | FI93867C (fi) |
FR (1) | FR2620744A1 (fi) |
NO (1) | NO174781C (fi) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5211811A (en) * | 1989-02-15 | 1993-05-18 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification |
US5181989A (en) * | 1990-10-26 | 1993-01-26 | Union Camp Patent Holdings, Inc. | Reactor for bleaching high consistency pulp with ozone |
US5409570A (en) * | 1989-02-15 | 1995-04-25 | Union Camp Patent Holding, Inc. | Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone |
US5472572A (en) * | 1990-10-26 | 1995-12-05 | Union Camp Patent Holding, Inc. | Reactor for bleaching high consistency pulp with ozone |
US5188708A (en) | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
FI89516B (fi) * | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
AT395180B (de) * | 1989-08-16 | 1992-10-12 | Andritz Ag Maschf | Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung |
US5441603A (en) * | 1990-05-17 | 1995-08-15 | Union Camp Patent Holding, Inc. | Method for chelation of pulp prior to ozone delignification |
US5164043A (en) | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
US5164044A (en) | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
US5174861A (en) * | 1990-10-26 | 1992-12-29 | Union Camp Patent Holdings, Inc. | Method of bleaching high consistency pulp with ozone |
US5520783A (en) * | 1990-10-26 | 1996-05-28 | Union Camp Patent Holding, Inc. | Apparatus for bleaching high consistency pulp with ozone |
EP0492040A1 (en) * | 1990-12-21 | 1992-07-01 | Kamyr, Inc. | Tumbling ozone reactor for paper pulp |
EP0492039A1 (en) * | 1990-12-27 | 1992-07-01 | Kamyr, Inc. | Pneumatic reactor ozone bleaching of paper pulp |
US5087326A (en) * | 1991-02-20 | 1992-02-11 | Union Camp Patent Holding, Inc. | Rotating pulp bleaching reactor having inner and outer shells and lifting means on the interior surface of the inner shell |
US5411633A (en) * | 1991-04-30 | 1995-05-02 | Kamyr, Inc. | Medium consistency pulp ozone bleaching |
DE69221385T2 (de) * | 1991-05-24 | 1997-12-11 | Union Camp Patent Holding | Zweistufiger Reaktor zum Bleichen von Zellstoff und Verfahren zum Bleichen mit Ozon |
FI925558A (fi) * | 1992-04-22 | 1993-10-23 | Ahlstroem Oy | Foerfarande och anordning foer blekning av massa |
US5387317A (en) * | 1993-01-28 | 1995-02-07 | The Mead Corporation | Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps |
US5810973A (en) * | 1993-09-21 | 1998-09-22 | Beloit Technologies, Inc. | Apparatus for producing small particles from high consistency wood pulp |
US5554259A (en) | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
CA2197190A1 (en) * | 1994-08-11 | 1996-02-22 | Lewis D. Shackford | Means for gas-sealingly conveying shredded pulp |
US5944952A (en) * | 1995-07-26 | 1999-08-31 | Beloit Technologies, Inc. | Method for bleaching high consistency pulp with a gaseous bleaching reagent |
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 |
US6174409B1 (en) | 1997-09-19 | 2001-01-16 | American Air Liquide Inc. | Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process |
SE514416C2 (sv) * | 1999-06-10 | 2001-02-19 | Valmet Fibertech Ab | Metod och system för gastät inmatning av massa till en reaktor för ozonblekning |
FR2811320B1 (fr) * | 2000-07-06 | 2002-08-23 | Adir | Nouvelle forme cristalline alpha du sel de tert-butylamine du perindopril, son procede de preparation et les compositions pharmaceutiques qui la contiennent |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1591070A (en) * | 1925-02-27 | 1926-07-06 | Robert B Wolf | Bleaching apparatus |
US2013115A (en) * | 1931-09-21 | 1935-09-03 | Thorne Carl Busch | Process and apparatus for the refining of pulp |
US2466633A (en) * | 1948-05-26 | 1949-04-05 | James M Daily | Method of bleaching cellulosic pulp |
FR1441787A (fr) * | 1965-04-30 | 1966-06-10 | Progil | Procédé de blanchiment des pâtes à papier |
NO137651C (no) * | 1975-10-31 | 1978-03-29 | Myrens Verksted As | Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk. |
JPS5319404A (en) * | 1976-04-19 | 1978-02-22 | Toyo Pulp Co Ltd | Process and apparatus for treating cellulose material |
CA1090510A (en) * | 1976-06-02 | 1980-12-02 | Arthur W. Kempf | Delignification and bleaching of a lignocellulosic pulp slurry with ozone |
JPS5536313A (en) * | 1978-08-30 | 1980-03-13 | Hokusan Kk | Production of mechanical pulp |
US4363697A (en) * | 1979-12-03 | 1982-12-14 | The Black Clawson Company | Method for medium consistency oxygen delignification of pulp |
FR2474550A1 (fr) * | 1980-01-24 | 1981-07-31 | Scott Paper Co | Procede de blanchiment de pate cellulosique |
FR2609067B1 (fr) * | 1986-12-31 | 1990-06-15 | Beghin Say Sa | Procede pour le traitement a l'ozone d'une pate cellulosique |
-
1987
- 1987-09-17 FR FR8712890A patent/FR2620744A1/fr not_active Withdrawn
-
1988
- 1988-09-12 ES ES198888402296T patent/ES2035339T3/es not_active Expired - Lifetime
- 1988-09-12 CA CA000577157A patent/CA1314664C/fr not_active Expired - Fee Related
- 1988-09-12 AT AT88402296T patent/ATE82340T1/de not_active IP Right Cessation
- 1988-09-12 DE DE8888402296T patent/DE3875893T2/de not_active Expired - Fee Related
- 1988-09-12 DE DE198888402296T patent/DE308314T1/de active Pending
- 1988-09-12 EP EP88402296A patent/EP0308314B1/fr not_active Expired - Lifetime
- 1988-09-16 BR BR8804806A patent/BR8804806A/pt not_active IP Right Cessation
- 1988-09-16 FI FI884267A patent/FI93867C/fi not_active IP Right Cessation
- 1988-09-16 NO NO884128A patent/NO174781C/no not_active IP Right Cessation
- 1988-09-17 JP JP63233374A patent/JP2731822B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2035339T3 (es) | 1993-04-16 |
NO884128L (no) | 1989-03-20 |
NO174781C (no) | 1994-07-06 |
CA1314664C (fr) | 1993-03-23 |
DE3875893T2 (de) | 1993-03-18 |
FR2620744A1 (fr) | 1989-03-24 |
EP0308314B1 (fr) | 1992-11-11 |
JPH0197290A (ja) | 1989-04-14 |
EP0308314A1 (fr) | 1989-03-22 |
BR8804806A (pt) | 1989-04-25 |
DE308314T1 (de) | 1989-10-05 |
FI884267A0 (fi) | 1988-09-16 |
NO174781B (no) | 1994-03-28 |
FI93867C (fi) | 1995-06-12 |
NO884128D0 (no) | 1988-09-16 |
FI884267A (fi) | 1989-03-18 |
DE3875893D1 (de) | 1992-12-17 |
ATE82340T1 (de) | 1992-11-15 |
FI93867B (fi) | 1995-02-28 |
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