PT940498E - Metodo para tratamento de pasta de papel - Google Patents

Metodo para tratamento de pasta de papel

Info

Publication number
PT940498E
PT940498E PT99103920T PT99103920T PT940498E PT 940498 E PT940498 E PT 940498E PT 99103920 T PT99103920 T PT 99103920T PT 99103920 T PT99103920 T PT 99103920T PT 940498 E PT940498 E PT 940498E
Authority
PT
Portugal
Prior art keywords
treating paper
paper paste
paste
treating
paper
Prior art date
Application number
PT99103920T
Other languages
English (en)
Portuguese (pt)
Inventor
Vuorinen Tapani
Juutilainen Sari
Vilpponen Aki
Original Assignee
Andritz Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8551173&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT940498(E) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of PT940498E publication Critical patent/PT940498E/pt

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
    • D21C9/1026—Other features in bleaching processes
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
PT99103920T 1998-03-06 1999-03-05 Metodo para tratamento de pasta de papel PT940498E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI980519A FI119383B (fi) 1998-03-06 1998-03-06 Menetelmä massan käsittelemiseksi

Publications (1)

Publication Number Publication Date
PT940498E true PT940498E (pt) 2006-09-29

Family

ID=8551173

Family Applications (1)

Application Number Title Priority Date Filing Date
PT99103920T PT940498E (pt) 1998-03-06 1999-03-05 Metodo para tratamento de pasta de papel

Country Status (7)

Country Link
US (1) US20020056533A1 (es)
EP (1) EP0940498B1 (es)
CA (1) CA2264423C (es)
DE (1) DE69931295D1 (es)
ES (1) ES2263236T3 (es)
FI (1) FI119383B (es)
PT (1) PT940498E (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524896C2 (sv) * 2003-03-07 2004-10-19 Kvaerner Pulping Tech Blekning av cellulosamassa med klordioxid i två faser med uppvärmning mellan faserna
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp
EA013901B1 (ru) * 2006-10-11 2010-08-30 Акцо Нобель Н.В. Отбеливание целлюлозы
US8920603B2 (en) 2006-10-11 2014-12-30 Akzo Nobel N.V. Bleaching of pulp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
FI102301B1 (fi) * 1994-10-13 1998-11-13 Ahlstrom Machinery Oy Menetelmä selluloosamassojen käsittelemiseksi
US6776876B1 (en) * 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid
FI105701B (fi) * 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi

Also Published As

Publication number Publication date
EP0940498A1 (en) 1999-09-08
CA2264423A1 (en) 1999-09-06
FI119383B (fi) 2008-10-31
FI980519A (fi) 1999-09-07
US20020056533A1 (en) 2002-05-16
ES2263236T3 (es) 2006-12-01
EP0940498B1 (en) 2006-05-17
FI980519A0 (fi) 1998-03-06
DE69931295D1 (de) 2006-06-22
CA2264423C (en) 2003-01-28

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