FI942970A0 - F¦rfarande f¦r delignifiering av en kemisk massa - Google Patents

F¦rfarande f¦r delignifiering av en kemisk massa

Info

Publication number
FI942970A0
FI942970A0 FI942970A FI942970A FI942970A0 FI 942970 A0 FI942970 A0 FI 942970A0 FI 942970 A FI942970 A FI 942970A FI 942970 A FI942970 A FI 942970A FI 942970 A0 FI942970 A0 FI 942970A0
Authority
FI
Finland
Prior art keywords
delignifying
chemical pulp
pulp
chemical
Prior art date
Application number
FI942970A
Other languages
English (en)
Finnish (fi)
Other versions
FI942970A (sv
Inventor
Myoeh Ilm
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/sv
Publication of FI942970A0 publication Critical patent/FI942970A0/sv
Priority to PCT/FI1995/000351 priority patent/WO1995035406A1/en
Priority to AU27398/95A priority patent/AU2739895A/en
Publication of FI942970A publication Critical patent/FI942970A/sv

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI942970A 1994-06-20 1994-06-20 Förfarande för delignifiering av en kemisk massa FI942970A (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI942970A FI942970A (sv) 1994-06-20 1994-06-20 Förfarande för delignifiering av en kemisk massa
PCT/FI1995/000351 WO1995035406A1 (en) 1994-06-20 1995-06-19 Delignification of chemical pulp with peroxide in the presence of a transition metal
AU27398/95A AU2739895A (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 (sv) 1994-06-20 1994-06-20 Förfarande för delignifiering av en kemisk massa

Publications (2)

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

Family

ID=8540968

Family Applications (1)

Application Number Title Priority Date Filing Date
FI942970A FI942970A (sv) 1994-06-20 1994-06-20 Förfarande för delignifiering av en kemisk massa

Country Status (3)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2435629B1 (en) 2009-05-28 2019-10-16 GP Cellulose GmbH Modified cellulose from chemical kraft fiber and methods of making and using the 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
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
PL2714987T3 (pl) 2011-05-23 2015-12-31 Gp Cellulose Gmbh Wykonane z drewna drzew iglastych włókno typu kraft o lepszej białości i jasności oraz sposoby jego wytwarzania i wykorzystywania
ES2844150T3 (es) 2012-01-12 2021-07-21 Gp Cellulose Gmbh Una fibra al sulfato de baja viscosidad que tiene propiedades de amarilleamiento reducidas y métodos para elaborar y usar la misma
KR102100276B1 (ko) 2012-04-18 2020-04-14 게페 첼루로제 게엠베하 비스코스 및 다른 2차 섬유 제품의 생산을 위해 펄프를 처리하고 크래프트 펄프의 섬유에의 통합을 개선시키기 위한 계면활성제의 용도
PL2954115T3 (pl) 2013-02-08 2022-05-02 Gp Cellulose Gmbh Włókno siarczanowe z drewna iglastego o polepszonej zawartości a-celulozy i jego zastosowanie w wytwarzaniu chemicznych produktów celulozowych
EP2971334A2 (en) 2013-03-14 2016-01-20 GP Cellulose GmbH A method of making 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
ES2724323T3 (es) 2013-11-06 2019-09-10 Evonik Degussa Gmbh Procedimiento para la deslignificación y el blanqueo de pasta de celulosa
WO2018093697A1 (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
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
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
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
AU2739895A (en) 1996-01-15
FI942970A (sv) 1995-12-21
WO1995035406A1 (en) 1995-12-28

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Legal Events

Date Code Title Description
FD Application lapsed