CA2144825A1 - Method of bleaching cellulose pulp - Google Patents

Method of bleaching cellulose pulp

Info

Publication number
CA2144825A1
CA2144825A1 CA002144825A CA2144825A CA2144825A1 CA 2144825 A1 CA2144825 A1 CA 2144825A1 CA 002144825 A CA002144825 A CA 002144825A CA 2144825 A CA2144825 A CA 2144825A CA 2144825 A1 CA2144825 A1 CA 2144825A1
Authority
CA
Canada
Prior art keywords
pulp
stage
ozone
bleaching
temperature
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.)
Abandoned
Application number
CA002144825A
Other languages
English (en)
French (fr)
Inventor
Kaj Henricson
Olavi Pikka
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.)
Andritz Oy
Original Assignee
Ahlstrom 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 Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of CA2144825A1 publication Critical patent/CA2144825A1/en
Abandoned 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
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA002144825A 1994-03-16 1995-03-16 Method of bleaching cellulose pulp Abandoned CA2144825A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI941229 1994-03-16
FI941229A FI98839B (fi) 1994-03-16 1994-03-16 Menetelmä massan valkaisemiseksi

Publications (1)

Publication Number Publication Date
CA2144825A1 true CA2144825A1 (en) 1995-09-17

Family

ID=8540324

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002144825A Abandoned CA2144825A1 (en) 1994-03-16 1995-03-16 Method of bleaching cellulose pulp

Country Status (3)

Country Link
CA (1) CA2144825A1 (fi)
FI (1) FI98839B (fi)
SE (1) SE511743C3 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113897813A (zh) * 2021-09-17 2022-01-07 华南理工大学 一种臭氧短序漂白桉木板皮浆的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105701B (fi) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113897813A (zh) * 2021-09-17 2022-01-07 华南理工大学 一种臭氧短序漂白桉木板皮浆的方法

Also Published As

Publication number Publication date
SE9500926L (sv) 1995-09-17
SE9500926D0 (sv) 1995-03-16
SE511743C3 (sv) 2000-01-10
FI941229A0 (fi) 1994-03-16
SE511743C2 (sv) 1999-11-15
FI98839B (fi) 1997-05-15
FI941229A (fi) 1995-09-17

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead