DE3768936D1 - METHOD FOR OZONE TREATMENT OF CELLULOSE MASH. - Google Patents
METHOD FOR OZONE TREATMENT OF CELLULOSE MASH.Info
- Publication number
- DE3768936D1 DE3768936D1 DE8787402949T DE3768936T DE3768936D1 DE 3768936 D1 DE3768936 D1 DE 3768936D1 DE 8787402949 T DE8787402949 T DE 8787402949T DE 3768936 T DE3768936 T DE 3768936T DE 3768936 D1 DE3768936 D1 DE 3768936D1
- Authority
- DE
- Germany
- Prior art keywords
- ozone treatment
- mash
- cellulose
- cellulose mash
- ozone
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/246—Screw constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8618447A FR2609067B1 (en) | 1986-12-31 | 1986-12-31 | PROCESS FOR THE OZONE TREATMENT OF A CELLULOSIC PASTE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3768936D1 true DE3768936D1 (en) | 1991-05-02 |
Family
ID=9342498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787402949T Expired - Fee Related DE3768936D1 (en) | 1986-12-31 | 1987-12-22 | METHOD FOR OZONE TREATMENT OF CELLULOSE MASH. |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0276608B1 (en) |
JP (1) | JP2547246B2 (en) |
CA (1) | CA1326942C (en) |
DE (1) | DE3768936D1 (en) |
ES (1) | ES2021083B3 (en) |
FR (1) | FR2609067B1 (en) |
NO (1) | NO883795L (en) |
PT (1) | PT86482B (en) |
WO (1) | WO1988005095A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2620744A1 (en) * | 1987-09-17 | 1989-03-24 | Degremont | PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD |
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 |
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 |
US5472572A (en) * | 1990-10-26 | 1995-12-05 | Union Camp Patent Holding, Inc. | Reactor for bleaching high consistency pulp with ozone |
US5151288A (en) * | 1990-10-16 | 1992-09-29 | Besst Frozen Products, Inc. | Food processing apparatus and method |
US5030465A (en) * | 1990-10-16 | 1991-07-09 | Besst Frozen Products, Inc. | Apparatus and method for making frozen confections |
US5229150A (en) * | 1990-10-16 | 1993-07-20 | Besst Frozen Products, Inc. | Food processing apparatus and method |
US5520783A (en) * | 1990-10-26 | 1996-05-28 | Union Camp Patent Holding, Inc. | Apparatus for bleaching high consistency pulp with ozone |
US5174861A (en) * | 1990-10-26 | 1992-12-29 | Union Camp Patent Holdings, Inc. | Method of bleaching high consistency pulp with ozone |
DE69221385T2 (en) * | 1991-05-24 | 1997-12-11 | Union Camp Patent Holding, Inc., Wilmington, Del. | Two-stage pulp bleaching reactor and method for bleaching with ozone |
FR2937656B1 (en) * | 2008-10-24 | 2010-11-19 | Arkema France | PROCESS FOR PRODUCING PAPER PULP |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO131996C (en) * | 1973-10-04 | 1975-09-03 | Papirind Forskningsinst | |
FR2436844A2 (en) * | 1978-09-19 | 1980-04-18 | Creusot Loire | Converting lignocellulose material into fibre pulp - for paper-making, by introducing bleach whilst the lignocellulose is being broken down |
NO142091C (en) * | 1977-10-17 | 1980-06-25 | Myrens Verksted As | PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS. |
DE3422087A1 (en) * | 1983-06-25 | 1985-01-03 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover | Apparatus for the production of wood pulp |
-
1986
- 1986-12-31 FR FR8618447A patent/FR2609067B1/en not_active Expired - Fee Related
-
1987
- 1987-12-15 CA CA000554413A patent/CA1326942C/en not_active Expired - Fee Related
- 1987-12-22 EP EP87402949A patent/EP0276608B1/en not_active Expired - Lifetime
- 1987-12-22 DE DE8787402949T patent/DE3768936D1/en not_active Expired - Fee Related
- 1987-12-22 ES ES87402949T patent/ES2021083B3/en not_active Expired - Lifetime
- 1987-12-23 JP JP63500838A patent/JP2547246B2/en not_active Expired - Fee Related
- 1987-12-23 WO PCT/FR1987/000510 patent/WO1988005095A1/en active Application Filing
- 1987-12-30 PT PT86482A patent/PT86482B/en active IP Right Revival
-
1988
- 1988-08-25 NO NO883795A patent/NO883795L/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO883795D0 (en) | 1988-08-25 |
FR2609067B1 (en) | 1990-06-15 |
WO1988005095A1 (en) | 1988-07-14 |
EP0276608A1 (en) | 1988-08-03 |
JPH01501805A (en) | 1989-06-22 |
FR2609067A1 (en) | 1988-07-01 |
PT86482B (en) | 1990-11-20 |
JP2547246B2 (en) | 1996-10-23 |
EP0276608B1 (en) | 1991-03-27 |
PT86482A (en) | 1988-01-01 |
NO883795L (en) | 1988-08-25 |
CA1326942C (en) | 1994-02-15 |
ES2021083B3 (en) | 1991-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |