DE3875893T2 - Verfahren zur ozonbehandlung von lignocellulosematerialien, insbesondere papiermassen, und reaktor zum ausfuehren des verfahrens. - Google Patents
Verfahren zur ozonbehandlung von lignocellulosematerialien, insbesondere papiermassen, und reaktor zum ausfuehren des verfahrens.Info
- Publication number
- DE3875893T2 DE3875893T2 DE8888402296T DE3875893T DE3875893T2 DE 3875893 T2 DE3875893 T2 DE 3875893T2 DE 8888402296 T DE8888402296 T DE 8888402296T DE 3875893 T DE3875893 T DE 3875893T DE 3875893 T2 DE3875893 T2 DE 3875893T2
- Authority
- DE
- Germany
- Prior art keywords
- ozone
- reactor
- mechanical
- container
- treated
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 16
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000000930 thermomechanical effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 2
- 238000010297 mechanical methods and process Methods 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 11
- 239000012978 lignocellulosic material Substances 0.000 abstract description 9
- 238000006385 ozonation reaction Methods 0.000 abstract description 5
- 239000012159 carrier gas Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 11
- 239000000123 paper Substances 0.000 description 7
- 229920005610 lignin Polymers 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 5
- 230000009172 bursting Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|
| DE3875893D1 DE3875893D1 (de) | 1992-12-17 |
| DE3875893T2 true DE3875893T2 (de) | 1993-03-18 |
Family
ID=9354988
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8888402296T Expired - Fee Related DE3875893T2 (de) | 1987-09-17 | 1988-09-12 | Verfahren zur ozonbehandlung von lignocellulosematerialien, insbesondere papiermassen, und reaktor zum ausfuehren des verfahrens. |
| DE198888402296T Pending DE308314T1 (de) | 1987-09-17 | 1988-09-12 | Verfahren zur ozonbehandlung von lignocellulosematerialien, insbesondere papiermassen, und reaktor zum ausfuehren des verfahrens. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE198888402296T Pending DE308314T1 (de) | 1987-09-17 | 1988-09-12 | Verfahren zur ozonbehandlung von lignocellulosematerialien, insbesondere papiermassen, und reaktor zum ausfuehren des verfahrens. |
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 |
| US5188708A (en) | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
| 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 |
| 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 |
| US5164044A (en) | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
| 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 |
| 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 |
| FI922279A (fi) * | 1991-05-24 | 1992-11-25 | Union Camp Patent Holding | Tvaostegsreaktor foer blekning av massa |
| 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 DE DE8888402296T patent/DE3875893T2/de not_active Expired - Fee Related
- 1988-09-12 ES ES198888402296T patent/ES2035339T3/es not_active Expired - Lifetime
- 1988-09-12 DE DE198888402296T patent/DE308314T1/de active Pending
- 1988-09-12 EP EP88402296A patent/EP0308314B1/fr 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
- 1988-09-16 FI FI884267A patent/FI93867C/fi not_active IP Right Cessation
- 1988-09-16 BR BR8804806A patent/BR8804806A/pt 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 |
|---|---|
| NO884128L (no) | 1989-03-20 |
| NO174781B (no) | 1994-03-28 |
| DE3875893D1 (de) | 1992-12-17 |
| EP0308314B1 (fr) | 1992-11-11 |
| ES2035339T3 (es) | 1993-04-16 |
| NO884128D0 (no) | 1988-09-16 |
| FI884267A0 (fi) | 1988-09-16 |
| FR2620744A1 (fr) | 1989-03-24 |
| FI93867B (fi) | 1995-02-28 |
| JPH0197290A (ja) | 1989-04-14 |
| FI884267A (fi) | 1989-03-18 |
| ATE82340T1 (de) | 1992-11-15 |
| BR8804806A (pt) | 1989-04-25 |
| DE308314T1 (de) | 1989-10-05 |
| CA1314664C (fr) | 1993-03-23 |
| JP2731822B2 (ja) | 1998-03-25 |
| FI93867C (fi) | 1995-06-12 |
| NO174781C (no) | 1994-07-06 |
| EP0308314A1 (fr) | 1989-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8328 | Change in the person/name/address of the agent |
Representative=s name: GROSSE, BOCKHORNI, SCHUMACHER, 81476 MUENCHEN |
|
| 8339 | Ceased/non-payment of the annual fee |