NO905599D0 - PROCEDURE FOR WHEATING OF MASS. - Google Patents

PROCEDURE FOR WHEATING OF MASS.

Info

Publication number
NO905599D0
NO905599D0 NO905599A NO905599A NO905599D0 NO 905599 D0 NO905599 D0 NO 905599D0 NO 905599 A NO905599 A NO 905599A NO 905599 A NO905599 A NO 905599A NO 905599 D0 NO905599 D0 NO 905599D0
Authority
NO
Norway
Prior art keywords
wheating
procedure
mass
Prior art date
Application number
NO905599A
Other languages
Norwegian (no)
Other versions
NO176061C (en
NO176061B (en
NO905599L (en
Inventor
Charlotte Bosenius
Erik Nilsson
Petter Tibbling
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 NO905599D0 publication Critical patent/NO905599D0/en
Publication of NO905599L publication Critical patent/NO905599L/en
Publication of NO176061B publication Critical patent/NO176061B/en
Publication of NO176061C publication Critical patent/NO176061C/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)
NO905599A 1989-12-29 1990-12-27 Method of bleaching pulp of cellulose-containing fibrous material NO176061C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8904403A SE467260B (en) 1989-12-29 1989-12-29 WHITING CELLULOSAMASSA WITH CHLORIDE Dioxide AND OZONE IN ONE AND SAME STEP

Publications (4)

Publication Number Publication Date
NO905599D0 true NO905599D0 (en) 1990-12-27
NO905599L NO905599L (en) 1991-07-01
NO176061B NO176061B (en) 1994-10-17
NO176061C NO176061C (en) 1995-01-25

Family

ID=20377904

Family Applications (1)

Application Number Title Priority Date Filing Date
NO905599A NO176061C (en) 1989-12-29 1990-12-27 Method of bleaching pulp of cellulose-containing fibrous material

Country Status (9)

Country Link
JP (1) JPH04289288A (en)
AT (1) AT396129B (en)
BR (1) BR9006578A (en)
CA (1) CA2031848C (en)
DE (1) DE4039099C2 (en)
FI (1) FI95291C (en)
FR (1) FR2656634B1 (en)
NO (1) NO176061C (en)
SE (1) SE467260B (en)

Families Citing this family (13)

* 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
FI925558A (en) 1992-04-22 1993-10-23 Ahlstroem Oy FOERFARANDE OCH ANORDNING FOER BLEKNING AV MASSA
US5387317A (en) * 1993-01-28 1995-02-07 The Mead Corporation Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
US6248209B1 (en) 1995-08-10 2001-06-19 Sanyo Chemical Industries, Ltd. Process for bleaching cellulose pulp with a bleaching assistant having the formula R1-O-{[(C2H4O)m/(AO)n}]-H
FR2743094B1 (en) * 1995-12-27 1998-02-13 Centre Tech Ind Papier PROCESS FOR BLEACHING CHEMICAL PULP
ID23571A (en) * 1997-08-25 2000-05-04 Praxair Technology Inc METHOD OF OZONE APPLICATION IN ECF BLEACHING
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
AU8642698A (en) * 1998-07-31 2000-02-28 Asia Pulp & Paper Co Ltd An improved method for bleaching pulp
JP2002069879A (en) * 2000-09-04 2002-03-08 Nippon Paper Industries Co Ltd Method for bleaching pulp of cellulosic fiber material
SE532470C2 (en) * 2008-05-13 2010-02-02 Metso Paper Inc Final bleaching of oxygen delignified pulp with ozone, chlorine dioxide and peroxide
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
CN111979818A (en) * 2020-08-07 2020-11-24 齐鲁工业大学 Sulfate wood pulp short-procedure ECF bleaching process X/Z/D-EOP-D or X/D/Z-EOP-D
CN111979823A (en) * 2020-08-07 2020-11-24 齐鲁工业大学 Sulfate wood pulp short-process ECF bleaching process X/D-Z-P (X/Z-D-P)

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
NO176061C (en) 1995-01-25
SE8904403L (en) 1991-06-30
CA2031848A1 (en) 1991-06-30
NO176061B (en) 1994-10-17
SE467260B (en) 1992-06-22
CA2031848C (en) 1995-11-21
JPH04289288A (en) 1992-10-14
AT396129B (en) 1993-06-25
FR2656634A1 (en) 1991-07-05
ATA251990A (en) 1992-10-15
DE4039099C2 (en) 1994-01-27
FI906400A (en) 1991-06-30
FI906400A0 (en) 1990-12-27
FI95291C (en) 1996-01-10
SE8904403D0 (en) 1989-12-29
NO905599L (en) 1991-07-01
BR9006578A (en) 1991-10-01
FI95291B (en) 1995-09-29
DE4039099A1 (en) 1991-07-04
FR2656634B1 (en) 1996-07-26

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Legal Events

Date Code Title Description
CREP Change of representative

Representative=s name: ZACCO NORWAY AS, POSTBOKS 2003 VIKA, 0125 OSLO, NO

MK1K Patent expired