CA1337843C - Methode pour le blanchiment de l'oxygene - Google Patents

Methode pour le blanchiment de l'oxygene

Info

Publication number
CA1337843C
CA1337843C CA000614212A CA614212A CA1337843C CA 1337843 C CA1337843 C CA 1337843C CA 000614212 A CA000614212 A CA 000614212A CA 614212 A CA614212 A CA 614212A CA 1337843 C CA1337843 C CA 1337843C
Authority
CA
Canada
Prior art keywords
pulp
delignification
vertical reactor
mixer
delignification zone
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 - Lifetime
Application number
CA000614212A
Other languages
English (en)
Inventor
Ake Backlund
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.)
Valmet AB
Original Assignee
Kamyr AB
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 Kamyr AB filed Critical Kamyr AB
Application granted granted Critical
Publication of CA1337843C publication Critical patent/CA1337843C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA000614212A 1988-10-18 1989-09-28 Methode pour le blanchiment de l'oxygene Expired - Lifetime CA1337843C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8803705A SE467582B (sv) 1988-10-18 1988-10-18 Saett vid oxygenblekning
SE8803705-6 1988-10-18

Publications (1)

Publication Number Publication Date
CA1337843C true CA1337843C (fr) 1996-01-02

Family

ID=20373661

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000614212A Expired - Lifetime CA1337843C (fr) 1988-10-18 1989-09-28 Methode pour le blanchiment de l'oxygene

Country Status (4)

Country Link
JP (1) JPH02145883A (fr)
CA (1) CA1337843C (fr)
FI (1) FI91896C (fr)
SE (1) SE467582B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2479619C2 (ru) * 2009-11-17 2013-04-20 Феликс Фердинандович Аухадеев Пульсационное устройство для делигнификации целлюлозосодержащего растительного сырья и способ его работы

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510740C2 (sv) * 1996-11-26 1999-06-21 Sunds Defibrator Ind Ab Styrning av syrgasdelignifiering
SE522593C2 (sv) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2479619C2 (ru) * 2009-11-17 2013-04-20 Феликс Фердинандович Аухадеев Пульсационное устройство для делигнификации целлюлозосодержащего растительного сырья и способ его работы

Also Published As

Publication number Publication date
SE8803705L (sv) 1990-04-19
FI894949A0 (fi) 1989-10-18
FI91896C (fi) 1994-08-25
FI91896B (fi) 1994-05-13
SE467582B (sv) 1992-08-10
SE8803705D0 (sv) 1988-10-18
JPH02145883A (ja) 1990-06-05

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Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 20130102