AU570673B2 - Continuous thermomechanical digestion and bleaching of pulp - Google Patents

Continuous thermomechanical digestion and bleaching of pulp

Info

Publication number
AU570673B2
AU570673B2 AU25401/84A AU2540184A AU570673B2 AU 570673 B2 AU570673 B2 AU 570673B2 AU 25401/84 A AU25401/84 A AU 25401/84A AU 2540184 A AU2540184 A AU 2540184A AU 570673 B2 AU570673 B2 AU 570673B2
Authority
AU
Australia
Prior art keywords
bleaching
pulp
thermomechanical digestion
continuous
continuous thermomechanical
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.)
Ceased
Application number
AU25401/84A
Other languages
English (en)
Other versions
AU2540184A (en
Inventor
Eduardo Joel Villavicencio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Process Evaluation and Development Corp
Original Assignee
Process Evaluation and Development Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Process Evaluation and Development Corp filed Critical Process Evaluation and Development Corp
Publication of AU2540184A publication Critical patent/AU2540184A/en
Application granted granted Critical
Publication of AU570673B2 publication Critical patent/AU570673B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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)
AU25401/84A 1983-05-23 1984-03-08 Continuous thermomechanical digestion and bleaching of pulp Ceased AU570673B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49689283A 1983-05-23 1983-05-23
US496892 1983-05-23

Publications (2)

Publication Number Publication Date
AU2540184A AU2540184A (en) 1984-11-29
AU570673B2 true AU570673B2 (en) 1988-03-24

Family

ID=23974632

Family Applications (1)

Application Number Title Priority Date Filing Date
AU25401/84A Ceased AU570673B2 (en) 1983-05-23 1984-03-08 Continuous thermomechanical digestion and bleaching of pulp

Country Status (9)

Country Link
JP (1) JPS59216994A (ja)
AU (1) AU570673B2 (ja)
BR (1) BR8305924A (ja)
EG (1) EG16660A (ja)
ES (1) ES531729A0 (ja)
FR (1) FR2546545B1 (ja)
IN (1) IN160270B (ja)
PH (1) PH22203A (ja)
ZA (1) ZA837927B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU502062B1 (en) * 1978-02-16 1979-07-12 Mo Och Domsjo Aktiebolag Producing groundwood pulp
US4347101A (en) * 1980-11-24 1982-08-31 W. R. Grace & Co. Process for producing newsprint

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818828A (en) * 1956-07-10 1959-08-26 Scott Paper Co Process for bleaching cellulosic pulp
FI42161C (fi) * 1963-04-03 1970-05-11 Defibrator Ab Tapa mekaanisten ja puolikemiallisten massojen valmistamiseksi jatkuvasti lignoselluloosapitoisesta aineesta
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
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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU502062B1 (en) * 1978-02-16 1979-07-12 Mo Och Domsjo Aktiebolag Producing groundwood pulp
US4347101A (en) * 1980-11-24 1982-08-31 W. R. Grace & Co. Process for producing newsprint

Also Published As

Publication number Publication date
BR8305924A (pt) 1985-02-20
ZA837927B (en) 1985-01-30
ES8503757A1 (es) 1985-03-01
PH22203A (en) 1988-06-28
EG16660A (en) 1991-12-30
FR2546545B1 (fr) 1986-10-24
IN160270B (ja) 1987-07-04
AU2540184A (en) 1984-11-29
ES531729A0 (es) 1985-03-01
FR2546545A1 (fr) 1984-11-30
JPS59216994A (ja) 1984-12-07

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