PH22203A - Thermomechanical digestion process using bleachants - Google Patents

Thermomechanical digestion process using bleachants

Info

Publication number
PH22203A
PH22203A PH30554A PH30554A PH22203A PH 22203 A PH22203 A PH 22203A PH 30554 A PH30554 A PH 30554A PH 30554 A PH30554 A PH 30554A PH 22203 A PH22203 A PH 22203A
Authority
PH
Philippines
Prior art keywords
bleachants
digestion process
thermomechanical digestion
thermomechanical
digestion
Prior art date
Application number
PH30554A
Other languages
English (en)
Inventor
Villavicencio Eduardo Joel
Original Assignee
Process Evaluation Devel
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 Devel filed Critical Process Evaluation Devel
Publication of PH22203A publication Critical patent/PH22203A/en

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)
PH30554A 1983-05-23 1984-04-16 Thermomechanical digestion process using bleachants PH22203A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
PH22203A true PH22203A (en) 1988-06-28

Family

ID=23974632

Family Applications (1)

Application Number Title Priority Date Filing Date
PH30554A PH22203A (en) 1983-05-23 1984-04-16 Thermomechanical digestion process using bleachants

Country Status (9)

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

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

Family Cites Families (10)

* 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
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

Also Published As

Publication number Publication date
FR2546545B1 (fr) 1986-10-24
FR2546545A1 (fr) 1984-11-30
AU2540184A (en) 1984-11-29
BR8305924A (pt) 1985-02-20
ES8503757A1 (es) 1985-03-01
ES531729A0 (es) 1985-03-01
AU570673B2 (en) 1988-03-24
EG16660A (en) 1991-12-30
ZA837927B (en) 1985-01-30
IN160270B (fr) 1987-07-04
JPS59216994A (ja) 1984-12-07

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