CA2200327C - Procede de blanchiment de pate kraft - Google Patents

Procede de blanchiment de pate kraft Download PDF

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Publication number
CA2200327C
CA2200327C CA002200327A CA2200327A CA2200327C CA 2200327 C CA2200327 C CA 2200327C CA 002200327 A CA002200327 A CA 002200327A CA 2200327 A CA2200327 A CA 2200327A CA 2200327 C CA2200327 C CA 2200327C
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CA
Canada
Prior art keywords
stage
peroxide
pulp
bleaching
oxygen
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA002200327A
Other languages
English (en)
Other versions
CA2200327A1 (fr
Inventor
Kaj Henricson
Olavi Pikka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Oy
Original Assignee
Andritz 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 Andritz Oy filed Critical Andritz Oy
Publication of CA2200327A1 publication Critical patent/CA2200327A1/fr
Application granted granted Critical
Publication of CA2200327C publication Critical patent/CA2200327C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)

Abstract

L'invention concerne un procédé de blanchiment de pâte de cellulose au sulfate, utilisé pour donner à cette dernière un degré de blancheur d'au moins 85 ISO à l'aide d'au moins deux des produits chimiques de blanchiment suivants: oxygène, ozone et peroxyde. Ledit procédé se caractérise en ce que la pâte à papier est traitée dans un lessiveur; puis soumise à un traitement d'extraction des métaux lourds à l'aide d'au moins un des agents ou procédés de traitement suivants: acidification, EDTA et DTPA; délignifiée dans une phase à l'oxygène en deux étapes sous pression; et blanchie dans une phase au peroxyde acide.
CA002200327A 1994-09-19 1995-09-18 Procede de blanchiment de pate kraft Expired - Fee Related CA2200327C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI944348 1994-09-19
FI944348A FI944348A (fi) 1994-09-19 1994-09-19 Menetelmä kraft-massan valkaisemiseksi
PCT/FI1995/000506 WO1996009434A1 (fr) 1994-09-19 1995-09-18 Procede de blanchiment de pate kraft

Publications (2)

Publication Number Publication Date
CA2200327A1 CA2200327A1 (fr) 1996-03-28
CA2200327C true CA2200327C (fr) 2002-03-19

Family

ID=8541400

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002200327A Expired - Fee Related CA2200327C (fr) 1994-09-19 1995-09-18 Procede de blanchiment de pate kraft

Country Status (4)

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

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
KR100866041B1 (ko) 1998-06-17 2008-10-30 나일 화이버 펄프 앤드 페이퍼 인코포레이티드 아룬도 도낵스 펄프, 종이제품, 및 입자보드
KR101739949B1 (ko) 2009-05-28 2017-05-25 게페 첼루로제 게엠베하 화학적 크래프트 섬유로부터의 변형된 셀룰로즈 및 이들을 제조 및 사용하는 방법
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
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
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
EP2714987B1 (fr) 2011-05-23 2015-07-29 GP Cellulose GmbH Fibre kraft de bois de conifères ayant une blancheur et un éclat améliorés et procédés de fabrication et utilisation de celle-ci
BR112014017164A8 (pt) 2012-01-12 2017-07-04 Gp Cellulose Gmbh método para produzir polpa kraft oxidada e fibras kraft de madeira macia
CN106968127B (zh) 2012-04-18 2019-03-01 Gp纤维素股份有限公司 用于粘胶溶液的针叶木牛皮纸浆
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 (fr) 2013-03-14 2016-01-20 GP Cellulose GmbH Procédé de fabrication d'une fibre kraft extrêmement fonctionnelle et de viscosité faible, en utilisant une séquence de blanchiment acide, et fibre fabriquée par ce procédé
US10174455B2 (en) 2013-03-15 2019-01-08 Gp Cellulose Gmbh Low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
WO2018093697A1 (fr) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Cellulose modifiée à base de fibres chimiques et procédés de fabrication et d'utilisation de ladite cellulose modifiée

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420430B (sv) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
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 (de) * 1984-08-01 1986-02-13 Degussa Ag, 6000 Frankfurt Verfahren zur delignifizierung und bleiche von zellstoffen
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.

Also Published As

Publication number Publication date
FI944348A (fi) 1996-03-20
FI944348A0 (fi) 1994-09-19
SE9700992D0 (sv) 1997-03-18
WO1996009434A1 (fr) 1996-03-28
SE9700992L (sv) 1997-05-16
CA2200327A1 (fr) 1996-03-28

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