FI961419A0 - Förfarande för behandling av kemisk pappersmassa utan användning av klorhaltiga kemikalier - Google Patents

Förfarande för behandling av kemisk pappersmassa utan användning av klorhaltiga kemikalier

Info

Publication number
FI961419A0
FI961419A0 FI961419A FI961419A FI961419A0 FI 961419 A0 FI961419 A0 FI 961419A0 FI 961419 A FI961419 A FI 961419A FI 961419 A FI961419 A FI 961419A FI 961419 A0 FI961419 A0 FI 961419A0
Authority
FI
Finland
Prior art keywords
chlorine
chemical pulp
containing chemicals
treating chemical
treating
Prior art date
Application number
FI961419A
Other languages
English (en)
Finnish (fi)
Other versions
FI961419A (sv
Inventor
Anders Bergqvist
Haokan Dahlloef
Marcelo Leite
Original Assignee
Kvaerner Pulping Tech
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
Priority claimed from SE9303233A external-priority patent/SE500954C2/sv
Priority claimed from SE9303551A external-priority patent/SE512491C2/sv
Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Publication of FI961419A publication Critical patent/FI961419A/sv
Publication of FI961419A0 publication Critical patent/FI961419A0/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/04—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in diffusers ; Washing of pulp of fluid consistency without substantially thickening
    • 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
    • D21C9/16—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)
FI961419A 1993-10-01 1996-03-29 Förfarande för behandling av kemisk pappersmassa utan användning av klorhaltiga kemikalier FI961419A0 (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9303233A SE500954C2 (sv) 1993-10-01 1993-10-01 Klorfri blekning av kemisk pappersmassa
SE9303551A SE512491C2 (sv) 1993-10-28 1993-10-28 Sätt att behandla kemisk pappersmassa utan användning av klorhaltiga kemikalier
PCT/SE1994/000889 WO1995009945A1 (en) 1993-10-01 1994-09-27 Method of treating chemical paper pulp without using chlorine-containing chemicals

Publications (2)

Publication Number Publication Date
FI961419A FI961419A (sv) 1996-03-29
FI961419A0 true FI961419A0 (sv) 1996-03-29

Family

ID=26661857

Family Applications (1)

Application Number Title Priority Date Filing Date
FI961419A FI961419A0 (sv) 1993-10-01 1996-03-29 Förfarande för behandling av kemisk pappersmassa utan användning av klorhaltiga kemikalier

Country Status (5)

Country Link
US (1) US6605181B1 (sv)
AU (1) AU7826094A (sv)
BR (1) BR9407668A (sv)
FI (1) FI961419A0 (sv)
WO (1) WO1995009945A1 (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103818B (sv) * 1995-02-21 1999-09-30 Ahlstrom Machinery Oy Massablekningsförfarande
US5973049A (en) * 1997-06-26 1999-10-26 The Dow Chemical Company Filled polymer compositions
ES2456271T3 (es) 2008-06-20 2014-04-21 International Paper Company Composición y hoja de registro con propiedades ópticas mejoradas
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
BRPI1012052A2 (pt) 2009-05-28 2017-12-26 Gp Cellulose Gmbh fibras kraft hidrolisadas e quimicamente modificadas e métodos de produção e de branqueamento de fibras kraft
CA2836895C (en) 2011-05-23 2020-03-31 Arthur J. Nonni Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same
MX366988B (es) 2012-01-12 2019-08-01 Gp Cellulose Gmbh Fibra kraft de baja viscosidad que tiene propiedades de amarillez reducida, y metodos para prepararla y usarla.
MX364847B (es) 2012-04-18 2019-05-08 Gp Cellulose Gmbh El uso de surfactante para tratar pulpa y mejorar la incorporacion de pulpa kraft en fibra para la produccion de viscosa y otros productos de fibra secundarios.
KR102180512B1 (ko) 2013-02-08 2020-11-19 게페 첼루로제 게엠베하 개선된 알파 셀룰로스 함량을 갖는 연재 크래프트 섬유 및 화학적 셀룰로스 제품의 생산에서의 그의 용도
WO2014140852A2 (en) 2013-03-14 2014-09-18 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
CN105143547B (zh) 2013-03-15 2018-05-01 Gp 纤维素股份有限公司 具有增高羧基含量的低粘度牛皮纸纤维及其制造和使用方法
US10865519B2 (en) 2016-11-16 2020-12-15 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219505C3 (de) 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff
FR2593527B1 (fr) * 1986-01-30 1988-03-25 Centre Tech Ind Papier Procede de blanchiment des pates mecaniques.
FR2622221A1 (fr) * 1987-10-22 1989-04-28 Atochem Procede de blanchiment de pates
DE402335T1 (de) 1989-06-06 1992-04-09 Eka Nobel Ab, Surte, Se Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
SE468355B (sv) 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
SE470065C (sv) * 1991-04-30 1995-10-12 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
SE9201477L (sv) 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
BE1006056A3 (fr) 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
US5401362A (en) * 1993-03-24 1995-03-28 Kamyr, Inc. Control of metals and dissolved organics in the bleach plant

Also Published As

Publication number Publication date
FI961419A (sv) 1996-03-29
WO1995009945A1 (en) 1995-04-13
BR9407668A (pt) 1997-01-28
AU7826094A (en) 1995-05-01
US6605181B1 (en) 2003-08-12

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