[go: up one dir, main page]

FI930954A0 - Förfarande för blekning av massa med klorfria kemikalier - Google Patents

Förfarande för blekning av massa med klorfria kemikalier

Info

Publication number
FI930954A0
FI930954A0 FI930954A FI930954A FI930954A0 FI 930954 A0 FI930954 A0 FI 930954A0 FI 930954 A FI930954 A FI 930954A FI 930954 A FI930954 A FI 930954A FI 930954 A0 FI930954 A0 FI 930954A0
Authority
FI
Finland
Prior art keywords
washer
pulp
bleaching
washing
chlorine
Prior art date
Application number
FI930954A
Other languages
English (en)
Finnish (fi)
Other versions
FI93232B (sv
FI930954L (sv
FI93232C (sv
Inventor
Kaj Henricson
Original Assignee
Ahlstroem 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8537491&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI930954(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI930954A priority Critical patent/FI93232C/sv
Publication of FI930954A0 publication Critical patent/FI930954A0/sv
Priority to ES98113684T priority patent/ES2186948T3/es
Priority to DE69332508T priority patent/DE69332508T2/de
Priority to PT98113684T priority patent/PT884415E/pt
Priority to AT98113684T priority patent/ATE228181T1/de
Priority to PCT/FI1993/000222 priority patent/WO1994020673A1/en
Priority to JP51962394A priority patent/JP3276083B2/ja
Priority to BR9307858A priority patent/BR9307858A/pt
Priority to AT93910051T priority patent/ATE176808T1/de
Priority to AU53705/94A priority patent/AU5370594A/en
Priority to ES93910051T priority patent/ES2130260T3/es
Priority to EP93910051A priority patent/EP0687321B1/en
Priority to FI954093A priority patent/FI954093A7/sv
Priority to DE69323566T priority patent/DE69323566T2/de
Priority to CA002157109A priority patent/CA2157109C/en
Priority to RU95122814A priority patent/RU2126471C1/ru
Priority to EP98113684A priority patent/EP0884415B1/en
Priority to FI934036A priority patent/FI98223B/sv
Publication of FI930954L publication Critical patent/FI930954L/sv
Publication of FI93232B publication Critical patent/FI93232B/sv
Publication of FI93232C publication Critical patent/FI93232C/sv
Application granted granted Critical
Priority to NO953444A priority patent/NO953444L/no
Priority to US08/929,082 priority patent/US6010594A/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
    • D21C9/1026—Other features in bleaching 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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)
  • Detergent Compositions (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FI930954A 1993-03-03 1993-03-03 Förfarande för blekning av massa med klorfria kemikalier FI93232C (sv)

Priority Applications (20)

Application Number Priority Date Filing Date Title
FI930954A FI93232C (sv) 1993-03-03 1993-03-03 Förfarande för blekning av massa med klorfria kemikalier
EP98113684A EP0884415B1 (en) 1993-03-03 1993-05-25 Method of washing pulp in connection with bleaching
AU53705/94A AU5370594A (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
FI954093A FI954093A7 (sv) 1993-03-03 1993-05-25 Förfarande för behandling av en massa med klorfria kemikalier
PT98113684T PT884415E (pt) 1993-03-03 1993-05-25 Metodo para a lavagem de polpa em conjunto com o branqueamento
AT98113684T ATE228181T1 (de) 1993-03-03 1993-05-25 Verfahren zum waschen von zellstoff beim bleichen
PCT/FI1993/000222 WO1994020673A1 (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
JP51962394A JP3276083B2 (ja) 1993-03-03 1993-05-25 塩素を含まない薬品によるパルプ漂白法
BR9307858A BR9307858A (pt) 1993-03-03 1993-05-25 Processo para o processamento de polpa que contem metais pesados tais como manganês
AT93910051T ATE176808T1 (de) 1993-03-03 1993-05-25 Verfahren zum bleichen von zellstoff mit chlorfreien chemikalien
ES98113684T ES2186948T3 (es) 1993-03-03 1993-05-25 Procedimiento para el lavado de pasta de papel durante el blanqueado.
ES93910051T ES2130260T3 (es) 1993-03-03 1993-05-25 Procedimiento de blanqueamiento de pasta de pulpa por medio de productos quimicos libres de cloro.
EP93910051A EP0687321B1 (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
DE69332508T DE69332508T2 (de) 1993-03-03 1993-05-25 Verfahren zum Waschen von Zellstoff beim Bleichen
DE69323566T DE69323566T2 (de) 1993-03-03 1993-05-25 Verfahren zum bleichen von zellstoff mit chlorfreien chemikalien
CA002157109A CA2157109C (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
RU95122814A RU2126471C1 (ru) 1993-03-03 1993-05-25 Способ производства целлюлозы без применения хлорных химикатов
FI934036A FI98223B (sv) 1993-03-03 1993-09-15 Förfarande för blekning av massa med klorfria kemikalier
NO953444A NO953444L (no) 1993-03-03 1995-09-01 Fremgangsmåte for bleking av masse med klorfrie kjemikalier
US08/929,082 US6010594A (en) 1993-03-03 1997-09-15 Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI930954A FI93232C (sv) 1993-03-03 1993-03-03 Förfarande för blekning av massa med klorfria kemikalier
FI930954 1993-03-03

Publications (4)

Publication Number Publication Date
FI930954A0 true FI930954A0 (sv) 1993-03-03
FI930954L FI930954L (sv) 1994-09-04
FI93232B FI93232B (sv) 1994-11-30
FI93232C FI93232C (sv) 1995-03-10

Family

ID=8537491

Family Applications (3)

Application Number Title Priority Date Filing Date
FI930954A FI93232C (sv) 1993-03-03 1993-03-03 Förfarande för blekning av massa med klorfria kemikalier
FI954093A FI954093A7 (sv) 1993-03-03 1993-05-25 Förfarande för behandling av en massa med klorfria kemikalier
FI934036A FI98223B (sv) 1993-03-03 1993-09-15 Förfarande för blekning av massa med klorfria kemikalier

Family Applications After (2)

Application Number Title Priority Date Filing Date
FI954093A FI954093A7 (sv) 1993-03-03 1993-05-25 Förfarande för behandling av en massa med klorfria kemikalier
FI934036A FI98223B (sv) 1993-03-03 1993-09-15 Förfarande för blekning av massa med klorfria kemikalier

Country Status (13)

Country Link
EP (2) EP0687321B1 (sv)
JP (1) JP3276083B2 (sv)
AT (2) ATE228181T1 (sv)
AU (1) AU5370594A (sv)
BR (1) BR9307858A (sv)
CA (1) CA2157109C (sv)
DE (2) DE69332508T2 (sv)
ES (2) ES2186948T3 (sv)
FI (3) FI93232C (sv)
NO (1) NO953444L (sv)
PT (1) PT884415E (sv)
RU (1) RU2126471C1 (sv)
WO (1) WO1994020673A1 (sv)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89516B (fi) 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
FI103818B (sv) * 1995-02-21 1999-09-30 Ahlstrom Machinery Oy Massablekningsförfarande
US20080110584A1 (en) * 2006-11-15 2008-05-15 Caifang Yin Bleaching process with at least one extraction stage
FR2910027B1 (fr) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature
FI119062B (sv) * 2006-12-28 2008-07-15 Upm Kymmene Corp Förfarande för tillverkning av mekanisk massa
KR101866196B1 (ko) 2009-05-28 2018-07-04 게페 첼루로제 게엠베하 화학적 크래프트 섬유로부터의 변형된 셀룰로즈 및 이들을 제조 및 사용하는 방법
KR101918470B1 (ko) 2011-05-23 2018-11-14 게페 첼루로제 게엠베하 개선된 백색도 및 밝기를 갖는 연재 크래프트 섬유 및 그의 제조 및 사용 방법
EP3800290B1 (en) 2012-01-12 2023-11-01 GP Cellulose GmbH A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same
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
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
MX364379B (es) 2013-03-14 2019-04-24 Gp Cellulose Gmbh Un metodo para preparar una fibra kraft altamente funcional y de baja viscosidad, usando una secuencia de blanqueamiento acido, y una fibra hecha por el proceso.
BR112015020000A2 (pt) 2013-03-15 2017-07-18 Gp Cellulose Gmbh fibra kraft quimicamente modificada e métodos de fabricação da mesma
FR3007044B1 (fr) * 2013-06-13 2016-01-15 Air Liquide Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
AT515152B1 (de) * 2013-11-26 2015-12-15 Chemiefaser Lenzing Ag Verfahren zum Vorbehandeln von rückgewonnenen Baumwollfasern zur Verwendung bei der Herstellung von Formkörpern aus regenerierter Cellulose
WO2018093697A1 (en) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
SE544236C2 (en) * 2020-12-21 2022-03-08 Valmet Oy Method for bleaching pulp from recycled textile material
SE545759C2 (en) * 2022-06-20 2024-01-02 Valmet Oy Method for bleaching pulp from recycled textile material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
US4310384A (en) * 1979-01-11 1982-01-12 Weyerhaeuser Company Reducing chemical transfer between treatment stages
FI74752C (sv) * 1986-03-20 1992-12-01 Ahlstroem Oy Förfarande och anordning för tvättning av cellulosa
DE69004492T3 (de) * 1989-06-06 2001-11-15 Eka Nobel Ab, Bohus Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
SU1675451A1 (ru) * 1989-09-25 1991-09-07 Центральный научно-исследовательский институт бумаги Способ подготовки волокнистого полуфабриката к отливу бумажного полотна при изготовлении бумаги
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
US5567262A (en) * 1991-04-16 1996-10-22 Ahlstrom Machinery Inc. Two stage pressure diffuser
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
AT400153B (de) * 1991-05-02 1995-10-25 Voest Alpine Ind Anlagen Verfahren zum bleichen von xylan- und lignocellulosehältigen materialien

Also Published As

Publication number Publication date
PT884415E (pt) 2003-03-31
RU2126471C1 (ru) 1999-02-20
DE69323566D1 (de) 1999-03-25
DE69323566T2 (de) 1999-07-15
DE69332508T2 (de) 2003-07-03
NO953444D0 (no) 1995-09-01
AU5370594A (en) 1994-09-26
FI98223B (sv) 1997-01-31
FI93232B (sv) 1994-11-30
JP3276083B2 (ja) 2002-04-22
FI930954L (sv) 1994-09-04
FI954093A7 (sv) 1995-10-17
CA2157109C (en) 2002-09-03
FI93232C (sv) 1995-03-10
FI934036L (sv) 1994-09-04
EP0687321B1 (en) 1999-02-17
CA2157109A1 (en) 1994-09-15
DE69332508D1 (de) 2003-01-02
EP0884415B1 (en) 2002-11-20
FI934036A0 (sv) 1993-09-15
ATE228181T1 (de) 2002-12-15
BR9307858A (pt) 1996-02-27
ES2130260T3 (es) 1999-07-01
WO1994020673A1 (en) 1994-09-15
ES2186948T3 (es) 2003-05-16
JPH08509781A (ja) 1996-10-15
EP0884415A1 (en) 1998-12-16
NO953444L (no) 1995-10-19
EP0687321A1 (en) 1995-12-20
ATE176808T1 (de) 1999-03-15
FI954093A0 (sv) 1995-08-30

Similar Documents

Publication Publication Date Title
FI930954A0 (sv) Förfarande för blekning av massa med klorfria kemikalier
ATE175250T1 (de) Behandlung von bleichanlageabwässern
SE8302828D0 (sv) Metod och apparatur for blekning av fibermassa
FI954259A0 (sv) F¦rfarande och anordning f¦r behandling av massa
SE8403553D0 (sv) Forfarande och apparatur for tvagning av cellulosamassa
FI962176A0 (sv) Förfarande i en pappersmaskin för att arrangera deFörfarande i en pappersmaskin för att arrangera dess vattencirkulationen ss vattencirkulationen
SE9803052D0 (sv) Blekning av massa
SE9701778D0 (sv) Förfarande för minimering av inkrustproblem vid framställning av blekt cellulosamassa under användande av i huvudsak helsluten tvättvätskeföring
DE69610796D1 (de) Wäschewaschmaschine mit Vorrichtung zum Filtern der Waschlauge
FI86895B (fi) Foerfarande foer motstroemstvaettning och blekning av massa fraon cellulosakok.
CA2163116A1 (en) Method of bleaching pulp without using chlorine chemicals
SE9303644D0 (sv) Förfarande för behandling av massa
DE59203937D1 (de) Verfahren zum Waschen und Bleichen von Wäsche.
SE9500926D0 (sv) Förfarande för blekning av massa
NO951464D0 (no) Fremgangsmåte til behandling av sulfittmasse för bleking med oksygenholdige kjemikalier
ATE232248T1 (de) Verfahren und vorrichtung zum kontinuierlichen waschen einer textilen bahn

Legal Events

Date Code Title Description
BB Publication of examined application