ATA251890A - METHOD FOR BLEACHING CELLULOSE MASH - Google Patents

METHOD FOR BLEACHING CELLULOSE MASH

Info

Publication number
ATA251890A
ATA251890A AT0251890A AT251890A ATA251890A AT A251890 A ATA251890 A AT A251890A AT 0251890 A AT0251890 A AT 0251890A AT 251890 A AT251890 A AT 251890A AT A251890 A ATA251890 A AT A251890A
Authority
AT
Austria
Prior art keywords
bleaching cellulose
mash
cellulose mash
bleaching
cellulose
Prior art date
Application number
AT0251890A
Other languages
German (de)
Other versions
AT395444B (en
Original Assignee
Kamyr 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 Kamyr Ab filed Critical Kamyr Ab
Publication of ATA251890A publication Critical patent/ATA251890A/en
Application granted granted Critical
Publication of AT395444B publication Critical patent/AT395444B/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
    • D21C9/147—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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AT0251890A 1989-12-29 1990-12-12 METHOD FOR BLEACHING CELLULOSE MASH AT395444B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8904404A SE467261B (en) 1989-12-29 1989-12-29 WHITING CELLULOSAMASSA WITH CHLORIDE Dioxide AND OZONE IN ONE AND SAME STEP

Publications (2)

Publication Number Publication Date
ATA251890A true ATA251890A (en) 1992-05-15
AT395444B AT395444B (en) 1992-12-28

Family

ID=20377905

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0251890A AT395444B (en) 1989-12-29 1990-12-12 METHOD FOR BLEACHING CELLULOSE MASH

Country Status (9)

Country Link
JP (1) JP2934512B2 (en)
AT (1) AT395444B (en)
BR (1) BR9006579A (en)
CA (1) CA2031850C (en)
DE (1) DE4039294C2 (en)
FI (1) FI95292C (en)
FR (1) FR2656633B1 (en)
NO (1) NO176060C (en)
SE (1) SE467261B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322598A (en) * 1990-02-06 1994-06-21 Olin Corporation Chlorine dioxide generation using inert load of sodium perchlorate
US6174409B1 (en) 1997-09-19 2001-01-16 American Air Liquide Inc. Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process
SE522593C2 (en) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech Oxygen gas delignification system and method of pulp of lignocellulosic material
GB0322598D0 (en) 2003-09-26 2003-10-29 Victrex Mfg Ltd Polymeric material
JP5987223B2 (en) * 2012-03-06 2016-09-07 愛媛県 Method for producing cellulose solution, method for producing cellulose, method for saccharification of cellulose
CN110656527A (en) * 2019-09-12 2020-01-07 华南理工大学 Method and device for efficiently bleaching medium-consistency paper pulp by using ozone and chlorine dioxide in synergy mode

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298875B (en) * 1965-01-09 1969-07-03 Gunnar Alexander Dipl Ing Process for bleaching cellulose in a chlorine bleach bath and with ozone
US4080249A (en) * 1976-06-02 1978-03-21 International Paper Company Delignification and bleaching of a lignocellulosic pulp slurry with ozone
US4902381A (en) * 1988-12-09 1990-02-20 Kamyr, Inc. Method of bleaching pulp with ozone-chlorine mixtures
US4959124A (en) * 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
FI89516B (en) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande Foer blekning av cellulosamassa med Otson

Also Published As

Publication number Publication date
SE8904404D0 (en) 1989-12-29
CA2031850C (en) 1995-11-21
FI95292C (en) 1996-01-10
SE8904404L (en) 1991-06-30
FI906401A (en) 1991-06-30
AT395444B (en) 1992-12-28
BR9006579A (en) 1991-10-01
FI95292B (en) 1995-09-29
JP2934512B2 (en) 1999-08-16
NO905598D0 (en) 1990-12-27
FI906401A0 (en) 1990-12-27
DE4039294C2 (en) 1993-11-11
NO905598L (en) 1991-07-01
DE4039294A1 (en) 1991-07-04
SE467261B (en) 1992-06-22
FR2656633B1 (en) 1996-06-07
FR2656633A1 (en) 1991-07-05
CA2031850A1 (en) 1991-06-30
JPH04263687A (en) 1992-09-18
NO176060B (en) 1994-10-17
NO176060C (en) 1995-01-25

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee