FI942970A - Menetelmä kemiallisen massan delignifioimiseksi - Google Patents

Menetelmä kemiallisen massan delignifioimiseksi Download PDF

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Publication number
FI942970A
FI942970A FI942970A FI942970A FI942970A FI 942970 A FI942970 A FI 942970A FI 942970 A FI942970 A FI 942970A FI 942970 A FI942970 A FI 942970A FI 942970 A FI942970 A FI 942970A
Authority
FI
Finland
Prior art keywords
delignifying
chemical pulp
pulp
chemical
Prior art date
Application number
FI942970A
Other languages
English (en)
Swedish (sv)
Other versions
FI942970A0 (fi
Inventor
Jukka Jaekaerae
Aarto Paren
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 FI942970A priority Critical patent/FI942970A/fi
Publication of FI942970A0 publication Critical patent/FI942970A0/fi
Priority to AU27398/95A priority patent/AU2739895A/en
Priority to PCT/FI1995/000351 priority patent/WO1995035406A1/en
Publication of FI942970A publication Critical patent/FI942970A/fi

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
    • D21C9/1026—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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
FI942970A 1994-06-20 1994-06-20 Menetelmä kemiallisen massan delignifioimiseksi FI942970A (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI942970A FI942970A (fi) 1994-06-20 1994-06-20 Menetelmä kemiallisen massan delignifioimiseksi
AU27398/95A AU2739895A (en) 1994-06-20 1995-06-19 Delignification of chemical pulp with peroxide in the presence of a transition metal
PCT/FI1995/000351 WO1995035406A1 (en) 1994-06-20 1995-06-19 Delignification of chemical pulp with peroxide in the presence of a transition metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI942970A FI942970A (fi) 1994-06-20 1994-06-20 Menetelmä kemiallisen massan delignifioimiseksi

Publications (2)

Publication Number Publication Date
FI942970A0 FI942970A0 (fi) 1994-06-20
FI942970A true FI942970A (fi) 1995-12-21

Family

ID=8540968

Family Applications (1)

Application Number Title Priority Date Filing Date
FI942970A FI942970A (fi) 1994-06-20 1994-06-20 Menetelmä kemiallisen massan delignifioimiseksi

Country Status (3)

Country Link
AU (1) AU2739895A (fi)
FI (1) FI942970A (fi)
WO (1) WO1995035406A1 (fi)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
MX2011012494A (es) 2009-05-28 2012-02-21 Gp Cellulose Gmbh Celulosa modificada a partir de fibra kraft quimica y metodos para elaborarla y su uso.
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
BR112013030060A2 (pt) 2011-05-23 2018-01-16 Gp Cellulose Gmbh fibras e tábua de madeira resinosa kraft e respectivo método para fabricação de fibra kraft
US10000890B2 (en) 2012-01-12 2018-06-19 Gp Cellulose Gmbh Low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same
US9617686B2 (en) 2012-04-18 2017-04-11 Gp Cellulose Gmbh Use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products
EP2954115B1 (en) 2013-02-08 2022-01-12 GP Cellulose GmbH Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
US10138598B2 (en) 2013-03-14 2018-11-27 Gp Cellulose Gmbh Method of making a highly functional, low viscosity kraft fiber using an acidic bleaching sequence and a fiber made by the process
BR112015020000A2 (pt) 2013-03-15 2017-07-18 Gp Cellulose Gmbh fibra kraft quimicamente modificada e métodos de fabricação da mesma
US10006169B2 (en) 2013-11-06 2018-06-26 Evonik Degussa Gmbh Method for delignifying and bleaching 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

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 (de) * 1992-07-06 1996-01-15 Solvay Interox Verfahren zur delignifizierung von chemischen zellstoffen

Also Published As

Publication number Publication date
WO1995035406A1 (en) 1995-12-28
FI942970A0 (fi) 1994-06-20
AU2739895A (en) 1996-01-15

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Legal Events

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