FI970519A0 - Blekning av kemisk pappersmassa under sulfonerande omständigheter - Google Patents

Blekning av kemisk pappersmassa under sulfonerande omständigheter

Info

Publication number
FI970519A0
FI970519A0 FI970519A FI970519A FI970519A0 FI 970519 A0 FI970519 A0 FI 970519A0 FI 970519 A FI970519 A FI 970519A FI 970519 A FI970519 A FI 970519A FI 970519 A0 FI970519 A0 FI 970519A0
Authority
FI
Finland
Prior art keywords
bleaching
chemical pulp
pulp under
sulfonating conditions
under sulfonating
Prior art date
Application number
FI970519A
Other languages
English (en)
Finnish (fi)
Other versions
FI970519A (sv
Inventor
Petter Tibbling
Ulla Ekstroem
Erik Nilsson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Publication of FI970519A publication Critical patent/FI970519A/sv
Publication of FI970519A0 publication Critical patent/FI970519A0/sv

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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI970519A 1994-08-16 1997-02-07 Blekning av kemisk pappersmassa under sulfonerande omständigheter FI970519A0 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9402726A SE502135C2 (sv) 1994-08-16 1994-08-16 Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg
PCT/SE1995/000486 WO1996005364A1 (en) 1994-08-16 1995-05-04 Bleaching of chemical paper pulp under sulphonating conditions

Publications (2)

Publication Number Publication Date
FI970519A FI970519A (sv) 1997-02-07
FI970519A0 true FI970519A0 (sv) 1997-02-07

Family

ID=20394928

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970519A FI970519A0 (sv) 1994-08-16 1997-02-07 Blekning av kemisk pappersmassa under sulfonerande omständigheter

Country Status (6)

Country Link
AU (1) AU2755895A (sv)
CA (1) CA2194290A1 (sv)
FI (1) FI970519A0 (sv)
SE (1) SE502135C2 (sv)
WO (1) WO1996005364A1 (sv)
ZA (1) ZA955971B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105701B (sv) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Förfarande och anordning för behandling av massa
SE516219C2 (sv) * 1995-10-26 2001-12-03 Kvaerner Pulping Tech Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg
ATE216741T1 (de) * 1997-01-21 2002-05-15 Univ New Brunswick Delignifizierung von zellstoff mit sauerstoff
US8980051B2 (en) * 2009-04-24 2015-03-17 International Paper Company Sulfonation of pulp produced by alkali pulping process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO152907C (no) * 1983-06-29 1985-12-11 Peterson & Son As M Fremgangsmaate til delignifisering av kjemisk masse.
US5089089A (en) * 1984-12-31 1992-02-18 Bear Island Paper Company System for sulfonating mechanical pulp fibers
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.

Also Published As

Publication number Publication date
AU2755895A (en) 1996-03-07
ZA955971B (en) 1996-02-21
SE9402726L (sv) 1995-08-28
FI970519A (sv) 1997-02-07
SE502135C2 (sv) 1995-08-28
CA2194290A1 (en) 1996-02-22
SE9402726D0 (sv) 1994-08-16
WO1996005364A1 (en) 1996-02-22

Similar Documents

Publication Publication Date Title
DE59709000D1 (de) Bleichhilfsmittel enthaltende Mikrokapseln
FI944928A0 (sv) Förfarande för blekning av kemisk pappersmassa
NO964609D0 (no) Fremgangsmåte for fremstilling av delignifisert og bleket kjemisk papirmasse
FI944348A (sv) Förfarande för blekning av kraftmassa
FI906400A (sv) Sätt att bleka massa
FI960757A (sv) Blekningsprocess för högutbytesmassor
FI970519A0 (sv) Blekning av kemisk pappersmassa under sulfonerande omständigheter
NO953440D0 (no) Fremgangsmåte for delignifisering av kjemisk papirmasse
FI945202A0 (sv) Blekning av kemisk massa
FI906401A0 (sv) Sätt att bleka massa
FI951166A0 (sv) Blekningsmetod för massa
FI103818B1 (sv) Massablekningsförfarande
NO984593D0 (no) FremgangsmÕte for bleking av kjemiske papirmasser
DE59500952D1 (de) Bleichen von jeans
SE9303037D0 (sv) Blekning av pappersmassa
KR970039367U (ko) 이조식 세탁기의 탈수통
FI960758A0 (sv) Blekningsprocess f¦r h¦gutbytesmassor
KR960008131U (ko) 세탁기의 교반기
KR960005157U (ko) 이조식 세탁기의 탈수통
KR950033347U (ko) 세탁기의 탈수장치
FI950200A0 (sv) Förfarande för blekning av massa
NO942651D0 (no) Fremgangsmåte for bleking av papirmasse
KR970049633U (ko) 세탁기의 교반식 세탁봉체결구조
SE9403203D0 (sv) Blekning av massa
ATA220392A (de) Ozon-zellstoffbleichen