JPS57121690A - Delignifying and/or bleaching of cellulose pulp - Google Patents

Delignifying and/or bleaching of cellulose pulp

Info

Publication number
JPS57121690A
JPS57121690A JP56190472A JP19047281A JPS57121690A JP S57121690 A JPS57121690 A JP S57121690A JP 56190472 A JP56190472 A JP 56190472A JP 19047281 A JP19047281 A JP 19047281A JP S57121690 A JPS57121690 A JP S57121690A
Authority
JP
Japan
Prior art keywords
delignifying
bleaching
cellulose pulp
pulp
cellulose
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.)
Granted
Application number
JP56190472A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6262199B2 (fr
Inventor
Rikarudo Berukushiyutore Jiyon
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Publication of JPS57121690A publication Critical patent/JPS57121690A/ja
Publication of JPS6262199B2 publication Critical patent/JPS6262199B2/ja
Granted 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
    • D21C9/12—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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
JP56190472A 1980-11-27 1981-11-26 Delignifying and/or bleaching of cellulose pulp Granted JPS57121690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8008336A SE442880B (sv) 1980-11-27 1980-11-27 Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma steg

Publications (2)

Publication Number Publication Date
JPS57121690A true JPS57121690A (en) 1982-07-29
JPS6262199B2 JPS6262199B2 (fr) 1987-12-25

Family

ID=20342344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56190472A Granted JPS57121690A (en) 1980-11-27 1981-11-26 Delignifying and/or bleaching of cellulose pulp

Country Status (5)

Country Link
JP (1) JPS57121690A (fr)
CA (1) CA1149111A (fr)
FI (1) FI73019C (fr)
NO (1) NO157223C (fr)
SE (1) SE442880B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014463A1 (fr) * 1989-05-15 1990-11-29 Westvaco Corporation Procede de reduction des composes chlores produits pendant l'etape de chlorage du blanchiment de pâte a papier
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process

Also Published As

Publication number Publication date
NO814024L (no) 1982-05-28
CA1149111A (fr) 1983-07-05
SE442880B (sv) 1986-02-03
FI813732L (fi) 1982-05-28
JPS6262199B2 (fr) 1987-12-25
NO157223C (no) 1988-02-10
NO157223B (no) 1987-11-02
FI73019C (fi) 1987-08-10
SE8008336L (sv) 1982-05-28
FI73019B (fi) 1987-04-30

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