FI942968A - Process for delignifying a chemical pulp - Google Patents

Process for delignifying a chemical pulp Download PDF

Info

Publication number
FI942968A
FI942968A FI942968A FI942968A FI942968A FI 942968 A FI942968 A FI 942968A FI 942968 A FI942968 A FI 942968A FI 942968 A FI942968 A FI 942968A FI 942968 A FI942968 A FI 942968A
Authority
FI
Finland
Prior art keywords
delignifying
chemical pulp
pulp
chemical
Prior art date
Application number
FI942968A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI942968A0 (en
Inventor
Aarto Paren
Jukka Jaekaerae
Juha Patola
Original Assignee
Kemira Chemicals 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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Priority to FI942968A priority Critical patent/FI942968A/en
Publication of FI942968A0 publication Critical patent/FI942968A0/en
Priority to PCT/FI1995/000353 priority patent/WO1995035408A1/en
Priority to AU27400/95A priority patent/AU2740095A/en
Publication of FI942968A publication Critical patent/FI942968A/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI942968A 1994-06-20 1994-06-20 Process for delignifying a chemical pulp FI942968A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI942968A FI942968A (en) 1994-06-20 1994-06-20 Process for delignifying a chemical pulp
PCT/FI1995/000353 WO1995035408A1 (en) 1994-06-20 1995-06-19 Delignification of chemical pulp with peroxide in the presence of transition metal
AU27400/95A AU2740095A (en) 1994-06-20 1995-06-19 Delignification of chemical pulp with peroxide in the presence of transition metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI942968A FI942968A (en) 1994-06-20 1994-06-20 Process for delignifying a chemical pulp

Publications (2)

Publication Number Publication Date
FI942968A0 FI942968A0 (en) 1994-06-20
FI942968A true FI942968A (en) 1995-12-21

Family

ID=8540966

Family Applications (1)

Application Number Title Priority Date Filing Date
FI942968A FI942968A (en) 1994-06-20 1994-06-20 Process for delignifying a chemical pulp

Country Status (3)

Country Link
AU (1) AU2740095A (en)
FI (1) FI942968A (en)
WO (1) WO1995035408A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504340E (en) * 1995-05-22 1999-08-09 Mo Och Domsjoe Ab Process for delignification / bleaching of lignin-containing cellulose pulp
FR2813896A1 (en) * 2000-09-14 2002-03-15 Atofina METHOD FOR DELIGNIFYING AND WHITENING BY OXIDANT AND OXIDOREDUCTION CATALYST
CA2469311A1 (en) * 2001-12-06 2003-06-19 Kazem Eradat Oskoui Method of extracting contaminants from solid matter
US8262850B2 (en) 2003-09-23 2012-09-11 International Paper Company Chemical activation and refining of southern pine kraft fibers
ES2974916T3 (en) * 2005-05-02 2024-07-02 Int Paper Co Lignocellulosic materials and products manufactured from them
CA2949518C (en) 2009-05-28 2019-01-08 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
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
RU2671653C2 (en) 2013-03-14 2018-11-06 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Method for manufacturing high functional low-viscosity kraft fibers with use of acid bleaching sequence and fiber produced therewith
CN105143547B (en) 2013-03-15 2018-05-01 Gp 纤维素股份有限公司 With low viscosity kraft fibers for increasing carboxyl-content and production and preparation method thereof
RU2523118C1 (en) * 2013-06-17 2014-07-20 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" Bleaching process of hardwood sulphate pulp
CA3040734A1 (en) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
US11332886B2 (en) 2017-03-21 2022-05-17 International Paper Company Odor control pulp composition

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
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
US4661205A (en) * 1981-08-28 1987-04-28 Scott Paper Company Method of bleaching lignocellulosic material with peroxide catalyzed with a salt of a metal
ATE132926T1 (en) * 1992-07-06 1996-01-15 Solvay Interox METHOD FOR DELIGNIFICATION OF CHEMICAL PULP

Also Published As

Publication number Publication date
AU2740095A (en) 1996-01-15
FI942968A0 (en) 1994-06-20
WO1995035408A1 (en) 1995-12-28

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Legal Events

Date Code Title Description
FD Application lapsed