FI944348A0 - Process for bleaching of pulp - Google Patents

Process for bleaching of pulp

Info

Publication number
FI944348A0
FI944348A0 FI944348A FI944348A FI944348A0 FI 944348 A0 FI944348 A0 FI 944348A0 FI 944348 A FI944348 A FI 944348A FI 944348 A FI944348 A FI 944348A FI 944348 A0 FI944348 A0 FI 944348A0
Authority
FI
Finland
Prior art keywords
bleaching
pulp
Prior art date
Application number
FI944348A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI944348A (en
Inventor
Kaj Henricson
Olavi Pikka
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI944348A priority Critical patent/FI944348A/en
Publication of FI944348A0 publication Critical patent/FI944348A0/en
Priority to FI950200A priority patent/FI950200A/en
Priority to CA002144677A priority patent/CA2144677A1/en
Priority to SE9500927A priority patent/SE9500927L/en
Priority to CA002200327A priority patent/CA2200327C/en
Priority to PCT/FI1995/000506 priority patent/WO1996009434A1/en
Publication of FI944348A publication Critical patent/FI944348A/en
Priority to FI971023A priority patent/FI971023A/en
Priority to SE9700992A priority patent/SE9700992L/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI944348A 1994-03-16 1994-09-19 Procedure for bleaching of pulp FI944348A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI944348A FI944348A (en) 1994-09-19 1994-09-19 Procedure for bleaching of pulp
FI950200A FI950200A (en) 1994-03-16 1995-01-17 Method for bleaching pulp
CA002144677A CA2144677A1 (en) 1994-03-16 1995-03-15 Method of tcf or ecf bleaching of cellulose pulp
SE9500927A SE9500927L (en) 1994-03-16 1995-03-16 Method for tcf or efc bleaching of pulp
CA002200327A CA2200327C (en) 1994-09-19 1995-09-18 Method of bleaching kraft pulp
PCT/FI1995/000506 WO1996009434A1 (en) 1994-09-19 1995-09-18 Method of bleaching kraft pulp
FI971023A FI971023A (en) 1994-09-19 1997-03-11 Method for bleaching kraft pulp
SE9700992A SE9700992L (en) 1994-09-19 1997-03-18 Procedure for bleaching of pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI944348A FI944348A (en) 1994-09-19 1994-09-19 Procedure for bleaching of pulp

Publications (2)

Publication Number Publication Date
FI944348A0 true FI944348A0 (en) 1994-09-19
FI944348A FI944348A (en) 1996-03-20

Family

ID=8541400

Family Applications (1)

Application Number Title Priority Date Filing Date
FI944348A FI944348A (en) 1994-03-16 1994-09-19 Procedure for bleaching of pulp

Country Status (4)

Country Link
CA (1) CA2200327C (en)
FI (1) FI944348A (en)
SE (1) SE9700992L (en)
WO (1) WO1996009434A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030029589A1 (en) * 1998-06-17 2003-02-13 Nile Fiber Pulp & Paper, Inc. Total chlorine free bleaching of Arundo donax pulp
CN100417500C (en) 1998-06-17 2008-09-10 尼勒纤维纸浆和纸公司 Arundo donax pulp, paper product and flakeboard
US9512563B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Surface treated modified cellulose from chemical kraft fiber and methods of making and using same
US9511167B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
BRPI1012052A2 (en) 2009-05-28 2017-12-26 Gp Cellulose Gmbh hydrolyzed and chemically modified kraft fibers and kraft fiber production and bleaching methods
MX353539B (en) 2011-05-23 2018-01-17 Gp Cellulose Gmbh Star Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same.
CN104302831A (en) 2012-01-12 2015-01-21 Gp纤维素股份有限公司 Low viscosity kraft fiber having reduced yellowing properties and method of making and using same
CN106968127B (en) 2012-04-18 2019-03-01 Gp纤维素股份有限公司 Needlebush kraft pulp for viscose solution
JP6472758B2 (en) 2013-02-08 2019-02-20 ゲーペー ツェルローゼ ゲーエムベーハー Softwood kraft fiber with improved α-cellulose content and its use in the production of chemical cellulose products
BR112015019882A2 (en) 2013-03-14 2017-07-18 Gp Cellulose Gmbh oxidized bleached kraft fiber and methods for making kraft pulp and softwood kraft fiber and for bleaching multi-stage bleaching cellulose kraft pulp
BR112015020000A2 (en) 2013-03-15 2017-07-18 Gp Cellulose Gmbh chemically modified kraft fiber and manufacturing methods
EP3541849B1 (en) 2016-11-16 2023-11-15 GP Cellulose GmbH Modified cellulose from chemical fiber and methods of making and using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420430B (en) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab PROCEDURE FOR WHEATING AND EXTRACTION OF LIGNOCELLULOSALLY MATERIALS WITH PEROXID CONTAINING BLACKS
US4427490A (en) * 1978-04-07 1984-01-24 International Paper Company Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives
DE3428352A1 (en) * 1984-08-01 1986-02-13 Degussa Ag, 6000 Frankfurt METHOD FOR DELIGNIFICATION AND BLEACHING OF CELLULAS
FR2655668B1 (en) * 1989-12-11 1995-06-09 Du Pin Cellulose PROCESS FOR BLEACHING CHEMICAL CELLULOSIC PASTA.

Also Published As

Publication number Publication date
CA2200327C (en) 2002-03-19
SE9700992L (en) 1997-05-16
SE9700992D0 (en) 1997-03-18
WO1996009434A1 (en) 1996-03-28
FI944348A (en) 1996-03-20
CA2200327A1 (en) 1996-03-28

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: AHLSTROM MACHINERY OY

FD Application lapsed