AU651462B2 - Bleaching and delignification of pulp - Google Patents

Bleaching and delignification of pulp Download PDF

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Publication number
AU651462B2
AU651462B2 AU18775/92A AU1877592A AU651462B2 AU 651462 B2 AU651462 B2 AU 651462B2 AU 18775/92 A AU18775/92 A AU 18775/92A AU 1877592 A AU1877592 A AU 1877592A AU 651462 B2 AU651462 B2 AU 651462B2
Authority
AU
Australia
Prior art keywords
document
date
pulp
stage
international
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.)
Ceased
Application number
AU18775/92A
Other languages
English (en)
Other versions
AU1877592A (en
Inventor
Maria Hammann
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.)
SOLVAY INTEROX
Original Assignee
SOLVAY INTEROX
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 SOLVAY INTEROX filed Critical SOLVAY INTEROX
Publication of AU1877592A publication Critical patent/AU1877592A/en
Application granted granted Critical
Publication of AU651462B2 publication Critical patent/AU651462B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU18775/92A 1991-06-06 1992-06-01 Bleaching and delignification of pulp Ceased AU651462B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9100549 1991-06-06
BE9100549A BE1004974A3 (fr) 1991-06-06 1991-06-06 Procede pour le blanchiment et la delignification de pates a papier chimiques et application de ce procede au blanchiment et a la delignification des pates kraft et des pates asam.
PCT/EP1992/001222 WO1992021814A1 (fr) 1991-06-06 1992-06-01 Procede pour blanchiment et la delignification de pates a papier chimiques

Publications (2)

Publication Number Publication Date
AU1877592A AU1877592A (en) 1993-01-08
AU651462B2 true AU651462B2 (en) 1994-07-21

Family

ID=3885547

Family Applications (1)

Application Number Title Priority Date Filing Date
AU18775/92A Ceased AU651462B2 (en) 1991-06-06 1992-06-01 Bleaching and delignification of pulp

Country Status (16)

Country Link
EP (1) EP0587822B1 (ja)
JP (1) JPH06507683A (ja)
AR (1) AR247257A1 (ja)
AT (1) ATE127179T1 (ja)
AU (1) AU651462B2 (ja)
BE (1) BE1004974A3 (ja)
BR (1) BR9206112A (ja)
CA (1) CA2110698A1 (ja)
DE (1) DE69204457T2 (ja)
ES (1) ES2079209T3 (ja)
FI (1) FI935422A (ja)
NO (1) NO302129B1 (ja)
NZ (1) NZ242996A (ja)
WO (1) WO1992021814A1 (ja)
YU (1) YU48264B (ja)
ZA (1) ZA924021B (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006881A3 (fr) * 1993-03-02 1995-01-17 Solvay Interox Procede pour la delignification d'une pate a papier chimique.
SE506480C2 (sv) * 1995-06-29 1997-12-22 Sca Graphic Res Ab Blekning av lignocellulosahaltigt fibermaterial med ozon och persyra i ett kombinationssteg
US5770011A (en) * 1995-11-17 1998-06-23 International Paper Company Neutral monoperoxysulfate bleaching process
FI964715A (fi) * 1996-11-26 1998-05-27 Keskuslaboratorio Menetelmä selluloosamassan valkaisemiseksi
EP0931874A1 (en) * 1998-01-22 1999-07-28 Degussa-Hüls Aktiengesellschaft Pulp bleaching process including final stage treatment step with salt of peroxymonosulfuric acid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
EP0415149A2 (en) * 1989-08-18 1991-03-06 Degussa Aktiengesellschaft Process for bleaching and delignification of lignocellulosic materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
EP0415149A2 (en) * 1989-08-18 1991-03-06 Degussa Aktiengesellschaft Process for bleaching and delignification of lignocellulosic materials

Also Published As

Publication number Publication date
AR247257A1 (es) 1994-11-30
NO302129B1 (no) 1998-01-26
FI935422A0 (fi) 1993-12-03
BR9206112A (pt) 1995-10-10
EP0587822B1 (fr) 1995-08-30
ES2079209T3 (es) 1996-01-01
DE69204457T2 (de) 1996-04-18
CA2110698A1 (fr) 1992-12-10
NO934406L (no) 1994-01-26
AU1877592A (en) 1993-01-08
NO934406D0 (no) 1993-12-03
JPH06507683A (ja) 1994-09-01
DE69204457D1 (de) 1995-10-05
ZA924021B (en) 1993-02-24
NZ242996A (en) 1995-01-27
YU48264B (sh) 1997-09-30
FI935422A (fi) 1994-01-11
BE1004974A3 (fr) 1993-03-09
EP0587822A1 (fr) 1994-03-23
YU58792A (sh) 1994-09-09
WO1992021814A1 (fr) 1992-12-10
ATE127179T1 (de) 1995-09-15

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