FI980519A - Process for treating pulp - Google Patents

Process for treating pulp Download PDF

Info

Publication number
FI980519A
FI980519A FI980519A FI980519A FI980519A FI 980519 A FI980519 A FI 980519A FI 980519 A FI980519 A FI 980519A FI 980519 A FI980519 A FI 980519A FI 980519 A FI980519 A FI 980519A
Authority
FI
Finland
Prior art keywords
treating pulp
pulp
treating
Prior art date
Application number
FI980519A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI980519A0 (en
FI119383B (en
Inventor
Sari Juutilainen
Aki Vilpponen
Tapani Vuorinen
Original Assignee
Ahlstrom Machinery 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=FI980519(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of FI980519A0 publication Critical patent/FI980519A0/en
Priority to FI980519A priority Critical patent/FI119383B/en
Application filed by Ahlstrom Machinery Oy filed Critical Ahlstrom Machinery Oy
Priority to DE69931295T priority patent/DE69931295D1/en
Priority to CA002264423A priority patent/CA2264423C/en
Priority to ES99103920T priority patent/ES2263236T3/en
Priority to US09/262,912 priority patent/US20020056533A1/en
Priority to EP99103920A priority patent/EP0940498B1/en
Priority to PT99103920T priority patent/PT940498E/en
Publication of FI980519A publication Critical patent/FI980519A/en
Publication of FI119383B publication Critical patent/FI119383B/en
Application granted granted Critical

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)
FI980519A 1998-03-06 1998-03-06 Procedure for treating pulp FI119383B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI980519A FI119383B (en) 1998-03-06 1998-03-06 Procedure for treating pulp
DE69931295T DE69931295D1 (en) 1998-03-06 1999-03-05 Process for pulp treatment
PT99103920T PT940498E (en) 1998-03-06 1999-03-05 METHOD FOR TREATING PAPER PASTE
CA002264423A CA2264423C (en) 1998-03-06 1999-03-05 Method for treatment of pulp
ES99103920T ES2263236T3 (en) 1998-03-06 1999-03-05 PROCESS FOR THE TREATMENT OF PAPER PASTE.
US09/262,912 US20020056533A1 (en) 1998-03-06 1999-03-05 Method of treating chemical cellulose pulp
EP99103920A EP0940498B1 (en) 1998-03-06 1999-03-05 Method for treatment of pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI980519A FI119383B (en) 1998-03-06 1998-03-06 Procedure for treating pulp
FI980519 1998-03-06

Publications (3)

Publication Number Publication Date
FI980519A0 FI980519A0 (en) 1998-03-06
FI980519A true FI980519A (en) 1999-09-07
FI119383B FI119383B (en) 2008-10-31

Family

ID=8551173

Family Applications (1)

Application Number Title Priority Date Filing Date
FI980519A FI119383B (en) 1998-03-06 1998-03-06 Procedure for treating pulp

Country Status (7)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524896C2 (en) * 2003-03-07 2004-10-19 Kvaerner Pulping Tech Bleaching of cellulose pulp with chlorine dioxide in two phases with heating between the phases
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp
BRPI0719893A2 (en) * 2006-10-11 2014-05-06 Akzo Nobel Nv PULP BLEACHING
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
FI102301B (en) * 1994-10-13 1998-11-13 Andritz Oy Method for treating cellulosic pulps
US6776876B1 (en) * 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid
FI105701B (en) * 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Method and arrangement for treatment of pulp

Also Published As

Publication number Publication date
DE69931295D1 (en) 2006-06-22
PT940498E (en) 2006-09-29
EP0940498A1 (en) 1999-09-08
ES2263236T3 (en) 2006-12-01
US20020056533A1 (en) 2002-05-16
EP0940498B1 (en) 2006-05-17
FI980519A0 (en) 1998-03-06
CA2264423A1 (en) 1999-09-06
FI119383B (en) 2008-10-31
CA2264423C (en) 2003-01-28

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