NO934406D0 - Process for Bleaching and Delignification of Chemical Pulp - Google Patents

Process for Bleaching and Delignification of Chemical Pulp

Info

Publication number
NO934406D0
NO934406D0 NO934406A NO934406A NO934406D0 NO 934406 D0 NO934406 D0 NO 934406D0 NO 934406 A NO934406 A NO 934406A NO 934406 A NO934406 A NO 934406A NO 934406 D0 NO934406 D0 NO 934406D0
Authority
NO
Norway
Prior art keywords
delignification
bleaching
chemical pulp
pulp
chemical
Prior art date
Application number
NO934406A
Other languages
Norwegian (no)
Other versions
NO302129B1 (en
NO934406L (en
Inventor
Maria Hammann
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 NO934406D0 publication Critical patent/NO934406D0/en
Publication of NO934406L publication Critical patent/NO934406L/en
Publication of NO302129B1 publication Critical patent/NO302129B1/en

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
NO934406A 1991-06-06 1993-12-03 Method of Bleaching and Delignification of Chemical Pulp NO302129B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9100549A BE1004974A3 (en) 1991-06-06 1991-06-06 Method for laundering and pasta delignification paper chemicals and application this method of laundering and the delignification of kraft pulp and pulp asam.
PCT/EP1992/001222 WO1992021814A1 (en) 1991-06-06 1992-06-01 Process for bleaching and delignifying chemical paper pulp

Publications (3)

Publication Number Publication Date
NO934406D0 true NO934406D0 (en) 1993-12-03
NO934406L NO934406L (en) 1994-01-26
NO302129B1 NO302129B1 (en) 1998-01-26

Family

ID=3885547

Family Applications (1)

Application Number Title Priority Date Filing Date
NO934406A NO302129B1 (en) 1991-06-06 1993-12-03 Method of Bleaching and Delignification of Chemical Pulp

Country Status (16)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006881A3 (en) * 1993-03-02 1995-01-17 Solvay Interox Method for delignification of chemical pulp.
SE506480C2 (en) * 1995-06-29 1997-12-22 Sca Graphic Res Ab Bleaching of lignocellulosic fibrous material with ozone and peracid in a combination step
US5770011A (en) * 1995-11-17 1998-06-23 International Paper Company Neutral monoperoxysulfate bleaching process
FI964715A (en) * 1996-11-26 1998-05-27 Keskuslaboratorio Method for bleaching cellulose pulp
EP0931874A1 (en) * 1998-01-22 1999-07-28 Degussa-Hüls Aktiengesellschaft Pulp bleaching process including final stage treatment step with salt of peroxymonosulfuric acid

Family Cites Families (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
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic

Also Published As

Publication number Publication date
NZ242996A (en) 1995-01-27
EP0587822A1 (en) 1994-03-23
FI935422A (en) 1994-01-11
FI935422A0 (en) 1993-12-03
BE1004974A3 (en) 1993-03-09
JPH06507683A (en) 1994-09-01
YU48264B (en) 1997-09-30
YU58792A (en) 1994-09-09
AR247257A1 (en) 1994-11-30
NO302129B1 (en) 1998-01-26
NO934406L (en) 1994-01-26
ES2079209T3 (en) 1996-01-01
DE69204457D1 (en) 1995-10-05
DE69204457T2 (en) 1996-04-18
ATE127179T1 (en) 1995-09-15
BR9206112A (en) 1995-10-10
EP0587822B1 (en) 1995-08-30
ZA924021B (en) 1993-02-24
WO1992021814A1 (en) 1992-12-10
AU651462B2 (en) 1994-07-21
CA2110698A1 (en) 1992-12-10
AU1877592A (en) 1993-01-08

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