FR2544757B1 - Procede et appareil de digestion pour la production de pulpe de haute qualite - Google Patents
Procede et appareil de digestion pour la production de pulpe de haute qualiteInfo
- Publication number
- FR2544757B1 FR2544757B1 FR8404874A FR8404874A FR2544757B1 FR 2544757 B1 FR2544757 B1 FR 2544757B1 FR 8404874 A FR8404874 A FR 8404874A FR 8404874 A FR8404874 A FR 8404874A FR 2544757 B1 FR2544757 B1 FR 2544757B1
- Authority
- FR
- France
- Prior art keywords
- production
- high quality
- digestion method
- quality pulp
- pulp
- 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
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
-
- 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
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48667883A | 1983-04-20 | 1983-04-20 | |
US49565983A | 1983-05-18 | 1983-05-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2544757A1 FR2544757A1 (fr) | 1984-10-26 |
FR2544757B1 true FR2544757B1 (fr) | 1986-11-07 |
Family
ID=27048768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8404874A Expired FR2544757B1 (fr) | 1983-04-20 | 1984-03-28 | Procede et appareil de digestion pour la production de pulpe de haute qualite |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU570034B2 (fr) |
ES (1) | ES542278A0 (fr) |
FR (1) | FR2544757B1 (fr) |
PH (1) | PH25619A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ211684A (en) * | 1985-04-04 | 1989-07-27 | Caxton Paper Ltd | Manufacture of cellulose pulp: second digestion step follows initial digestion and refining steps |
NZ229080A (en) * | 1989-05-11 | 1991-10-25 | Convertech Group Ltd | Two stage process and equipment for the steam hydrolysis of woody material |
FR2669020B1 (fr) * | 1990-11-13 | 1994-01-21 | Gerard Ascher | Procede de fabrication de mortier composite cellulaire charge de fibres et materiau obtenue par ce procede. |
AT398587B (de) * | 1992-02-04 | 1994-12-27 | Oesterreichische Homogenholz A | Einspeiseverfahren |
NZ248895A (en) * | 1993-10-08 | 1995-07-26 | Convertech Group Ltd | Transfer device having intermittently rotated carousel having through passageways with assembly sealing pressure maximised during rotor dwell periods |
CN107083710A (zh) * | 2017-04-20 | 2017-08-22 | 四川省犍为凤生纸业有限责任公司 | 一种竹材原浆纸生产方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR964386A (fr) * | 1950-08-11 | |||
US2862813A (en) * | 1952-12-23 | 1958-12-02 | Process Evaluation Devel | Semi-chemical pulping process |
US3238088A (en) * | 1962-12-04 | 1966-03-01 | Cia Ind De Ayotla | Continuous digesting of cellulosic fibrous material at decreasing pressure with mechanical defibering therebetween |
DE1253031B (de) * | 1963-04-03 | 1967-10-26 | Defibrator Ab | Verfahren zur Herstellung mechanischen und/oder chemomechanischen Faserstoffs aus lignozellulosehaltigem Material |
US3773610A (en) * | 1970-12-11 | 1973-11-20 | Bauer Bros Co | Pressurized system for pulp refining including pressurized double disk treatment |
US4152197A (en) * | 1974-09-23 | 1979-05-01 | Mo Och Domsjo Ab | Process for preparing high-yield cellulose pulps by vapor phase pulping an unpulped portion of lignocellulosic material and a partially chemically pulped portion |
US4260452A (en) * | 1978-11-24 | 1981-04-07 | Krueger Horst | Production of paper pulp from sugar mill bagasse |
US4347101A (en) * | 1980-11-24 | 1982-08-31 | W. R. Grace & Co. | Process for producing newsprint |
-
1984
- 1984-03-08 AU AU25400/84A patent/AU570034B2/en not_active Ceased
- 1984-03-28 FR FR8404874A patent/FR2544757B1/fr not_active Expired
-
1985
- 1985-04-16 ES ES542278A patent/ES542278A0/es active Granted
-
1987
- 1987-12-15 PH PH36222A patent/PH25619A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2544757A1 (fr) | 1984-10-26 |
AU2540084A (en) | 1984-10-25 |
ES8603606A1 (es) | 1985-12-16 |
ES542278A0 (es) | 1985-12-16 |
AU570034B2 (en) | 1988-03-03 |
PH25619A (en) | 1991-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |