BR8305924A - Processo para aumentar o brilho de uma polpa termomecanica - Google Patents
Processo para aumentar o brilho de uma polpa termomecanicaInfo
- Publication number
- BR8305924A BR8305924A BR8305924A BR8305924A BR8305924A BR 8305924 A BR8305924 A BR 8305924A BR 8305924 A BR8305924 A BR 8305924A BR 8305924 A BR8305924 A BR 8305924A BR 8305924 A BR8305924 A BR 8305924A
- Authority
- BR
- Brazil
- Prior art keywords
- thermomecanic
- shine
- pulp
- increase
- thermomecanic pulp
- Prior art date
Links
Classifications
-
- 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
- D21B1/36—Explosive disintegration by sudden pressure reduction
-
- 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
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (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 |
|---|---|---|---|
| US49689283A | 1983-05-23 | 1983-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8305924A true BR8305924A (pt) | 1985-02-20 |
Family
ID=23974632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8305924A BR8305924A (pt) | 1983-05-23 | 1983-10-26 | Processo para aumentar o brilho de uma polpa termomecanica |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS59216994A (fr) |
| AU (1) | AU570673B2 (fr) |
| BR (1) | BR8305924A (fr) |
| EG (1) | EG16660A (fr) |
| ES (1) | ES8503757A1 (fr) |
| FR (1) | FR2546545B1 (fr) |
| IN (1) | IN160270B (fr) |
| PH (1) | PH22203A (fr) |
| ZA (1) | ZA837927B (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3610940A1 (de) * | 1986-03-04 | 1987-09-10 | Escher Wyss Gmbh | Hochtemperatur-hochkonsistenz-schnellbleiche |
| FR2701274B1 (fr) * | 1993-02-09 | 1995-03-31 | Air Liquide | Procédé de fabrication de pâtes à papier chimicothermomécaniques blanchies (CTMP). |
| JP2005290331A (ja) | 2004-04-06 | 2005-10-20 | Shinto Fine Co Ltd | 抗アレルゲン組成物及びアレルゲン不活性化方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818828A (en) * | 1956-07-10 | 1959-08-26 | Scott Paper Co | Process for bleaching cellulosic pulp |
| DE1253031B (de) * | 1963-04-03 | 1967-10-26 | Defibrator Ab | Verfahren zur Herstellung mechanischen und/oder chemomechanischen Faserstoffs aus lignozellulosehaltigem Material |
| FR1401560A (fr) * | 1964-05-29 | 1965-06-04 | Defibrator Ab | Procédé de fabrication de pâtes cellulosiques à partir de copeaux dans un appareil défibreur |
| US3467574A (en) * | 1966-06-14 | 1969-09-16 | Crown Zellerbach Corp | Refiner bleaching of high yield pulps |
| FI61215B (fi) * | 1976-11-23 | 1982-02-26 | Defibrator Ab | Saett och anordning att kontinuerligt framstaella lignocellulosahaltiga fibermaterial |
| SE420329C (sv) * | 1978-02-16 | 1984-10-15 | Mo Och Domsjoe Ab | Forfarande for framstellning av slipmassa vid overtryck |
| SE422818B (sv) * | 1978-03-31 | 1982-03-29 | Modo Chemetrics Ab | Forfarande for foredling av allulosamassa genom blekning eller extrahering |
| US4363697A (en) * | 1979-12-03 | 1982-12-14 | The Black Clawson Company | Method for medium consistency oxygen delignification of pulp |
| US4347101A (en) * | 1980-11-24 | 1982-08-31 | W. R. Grace & Co. | Process for producing newsprint |
| US4431480A (en) * | 1981-10-27 | 1984-02-14 | The Black Clawson Company | Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction |
-
1983
- 1983-10-25 ZA ZA837927A patent/ZA837927B/xx unknown
- 1983-10-26 BR BR8305924A patent/BR8305924A/pt unknown
-
1984
- 1984-03-07 IN IN215/DEL/84A patent/IN160270B/en unknown
- 1984-03-08 AU AU25401/84A patent/AU570673B2/en not_active Ceased
- 1984-03-28 FR FR8404875A patent/FR2546545B1/fr not_active Expired
- 1984-04-16 JP JP59075178A patent/JPS59216994A/ja active Pending
- 1984-04-16 PH PH30554A patent/PH22203A/en unknown
- 1984-04-18 EG EG250/84A patent/EG16660A/xx active
- 1984-04-18 ES ES531729A patent/ES8503757A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2546545B1 (fr) | 1986-10-24 |
| AU2540184A (en) | 1984-11-29 |
| ZA837927B (en) | 1985-01-30 |
| FR2546545A1 (fr) | 1984-11-30 |
| AU570673B2 (en) | 1988-03-24 |
| IN160270B (fr) | 1987-07-04 |
| ES531729A0 (es) | 1985-03-01 |
| ES8503757A1 (es) | 1985-03-01 |
| JPS59216994A (ja) | 1984-12-07 |
| PH22203A (en) | 1988-06-28 |
| EG16660A (en) | 1991-12-30 |
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