ZA955971B - Method of bleaching pulp - Google Patents

Method of bleaching pulp

Info

Publication number
ZA955971B
ZA955971B ZA955971A ZA955971A ZA955971B ZA 955971 B ZA955971 B ZA 955971B ZA 955971 A ZA955971 A ZA 955971A ZA 955971 A ZA955971 A ZA 955971A ZA 955971 B ZA955971 B ZA 955971B
Authority
ZA
South Africa
Prior art keywords
bleaching pulp
bleaching
pulp
Prior art date
Application number
ZA955971A
Other languages
English (en)
Inventor
Ulla Ekstrom
Erik Nilsson
Petter Tibbling
Original Assignee
Kvaerner Pulping Technolgies A
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 Technolgies A filed Critical Kvaerner Pulping Technolgies A
Publication of ZA955971B publication Critical patent/ZA955971B/xx

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)
ZA955971A 1994-08-16 1995-07-18 Method of bleaching pulp ZA955971B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402726A SE502135C2 (sv) 1994-08-16 1994-08-16 Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg

Publications (1)

Publication Number Publication Date
ZA955971B true ZA955971B (en) 1996-02-21

Family

ID=20394928

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA955971A ZA955971B (en) 1994-08-16 1995-07-18 Method of bleaching pulp

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
SE9402726L (sv) 1995-08-28
FI970519A (sv) 1997-02-07
FI970519A0 (sv) 1997-02-07
SE502135C2 (sv) 1995-08-28
CA2194290A1 (en) 1996-02-22
SE9402726D0 (sv) 1994-08-16
WO1996005364A1 (en) 1996-02-22

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