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FI955878L - Förfarande och anordning för behandling av massa - Google Patents

Förfarande och anordning för behandling av massa Download PDF

Info

Publication number
FI955878L
FI955878L FI955878A FI955878A FI955878L FI 955878 L FI955878 L FI 955878L FI 955878 A FI955878 A FI 955878A FI 955878 A FI955878 A FI 955878A FI 955878 L FI955878 L FI 955878L
Authority
FI
Finland
Prior art keywords
pulp
treatment
degrees celsius
acid
kappa number
Prior art date
Application number
FI955878A
Other languages
English (en)
Finnish (fi)
Other versions
FI955878A0 (sv
FI105701B (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=27444250&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI955878(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FI955007A external-priority patent/FI102193B1/sv
Priority claimed from SE9504147A external-priority patent/SE516693C2/sv
Publication of FI955878A0 publication Critical patent/FI955878A0/sv
Priority to FI955878A priority Critical patent/FI105701B/sv
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI960214A priority patent/FI104574B/sv
Priority to BR9611258A priority patent/BR9611258A/pt
Priority to CA002235325A priority patent/CA2235325C/en
Priority to EP96934841A priority patent/EP0856080B1/en
Priority to PCT/FI1996/000552 priority patent/WO1997015713A1/en
Priority to PT96934841T priority patent/PT856080E/pt
Priority to DE69613989T priority patent/DE69613989D1/de
Priority to AT96934841T priority patent/ATE203291T1/de
Priority to US09/051,678 priority patent/US6306253B2/en
Priority to ES96934841T priority patent/ES2158355T3/es
Priority to AU73016/96A priority patent/AU7301696A/en
Publication of FI955878L publication Critical patent/FI955878L/sv
Publication of FI105701B publication Critical patent/FI105701B/sv
Application granted granted Critical
Priority to US09/793,652 priority patent/US20010020521A1/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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
FI955878A 1995-10-20 1995-12-07 Förfarande och anordning för behandling av massa FI105701B (sv)

Priority Applications (13)

Application Number Priority Date Filing Date Title
FI955878A FI105701B (sv) 1995-10-20 1995-12-07 Förfarande och anordning för behandling av massa
FI960214A FI104574B (sv) 1995-10-20 1996-01-07 Förfarande och anordning för behandling av massa
US09/051,678 US6306253B2 (en) 1995-10-20 1996-10-18 Acid treatment of pulp at high temperature prior to chlorine dioxide bleaching
BR9611258A BR9611258A (pt) 1995-10-20 1996-10-18 Tratamento ácido de polpa a alta temperatura em conexão com alvejamento
CA002235325A CA2235325C (en) 1995-10-20 1996-10-18 Acid treatment of pulp at high temperature in connection with bleaching
ES96934841T ES2158355T3 (es) 1995-10-20 1996-10-18 Tratamiento acido de la pasta de papel a alta temperatura en relacion con el blanqueo.
AU73016/96A AU7301696A (en) 1995-10-20 1996-10-18 Acid treatment of pulp at high temperature in connection with bleaching
EP96934841A EP0856080B1 (en) 1995-10-20 1996-10-18 Acid treatment of pulp at high temperature in connection with bleaching
PCT/FI1996/000552 WO1997015713A1 (en) 1995-10-20 1996-10-18 Acid treatment of pulp at high temperature in connection with bleaching
PT96934841T PT856080E (pt) 1995-10-20 1996-10-18 Tratamento acido da pasta de papel a alta temperatura em combinacao com o branqueamento
DE69613989T DE69613989D1 (de) 1995-10-20 1996-10-18 Hochtemperatur-säurebehandlung von zellstoff beim bleichen
AT96934841T ATE203291T1 (de) 1995-10-20 1996-10-18 Hochtemperatur-säurebehandlung von zellstoff beim bleichen
US09/793,652 US20010020521A1 (en) 1995-10-20 2001-02-27 Acid treatment of pulp at high temperature in connection with bleaching

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
FI955007 1995-10-20
FI955007A FI102193B1 (sv) 1995-10-20 1995-10-20 Förfarande och anordning för behandling av massa
SE9504147A SE516693C2 (sv) 1995-10-20 1995-11-21 Förfarande och apparatsystem för behandling av cellulosamassa med syra för sänkande av dess kappatal
SE9504147 1995-11-21
FI955878A FI105701B (sv) 1995-10-20 1995-12-07 Förfarande och anordning för behandling av massa
FI955878 1995-12-07
FI960214A FI104574B (sv) 1995-10-20 1996-01-07 Förfarande och anordning för behandling av massa
FI960214 1996-01-17
FI9600552 1996-10-18
PCT/FI1996/000552 WO1997015713A1 (en) 1995-10-20 1996-10-18 Acid treatment of pulp at high temperature in connection with bleaching

Publications (3)

Publication Number Publication Date
FI955878A0 FI955878A0 (sv) 1995-12-07
FI955878L true FI955878L (sv) 1997-04-21
FI105701B FI105701B (sv) 2000-09-29

Family

ID=27444250

Family Applications (2)

Application Number Title Priority Date Filing Date
FI955878A FI105701B (sv) 1995-10-20 1995-12-07 Förfarande och anordning för behandling av massa
FI960214A FI104574B (sv) 1995-10-20 1996-01-07 Förfarande och anordning för behandling av massa

Family Applications After (1)

Application Number Title Priority Date Filing Date
FI960214A FI104574B (sv) 1995-10-20 1996-01-07 Förfarande och anordning för behandling av massa

Country Status (11)

Country Link
US (2) US6306253B2 (sv)
EP (1) EP0856080B1 (sv)
AT (1) ATE203291T1 (sv)
AU (1) AU7301696A (sv)
BR (1) BR9611258A (sv)
CA (1) CA2235325C (sv)
DE (1) DE69613989D1 (sv)
ES (1) ES2158355T3 (sv)
FI (2) FI105701B (sv)
PT (1) PT856080E (sv)
WO (1) WO1997015713A1 (sv)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6306334B1 (en) 1996-08-23 2001-10-23 The Weyerhaeuser Company Process for melt blowing continuous lyocell fibers
US6235392B1 (en) 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6605350B1 (en) 1996-08-23 2003-08-12 Weyerhaeuser Company Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same
US6331354B1 (en) 1996-08-23 2001-12-18 Weyerhaeuser Company Alkaline pulp having low average degree of polymerization values and method of producing the same
US6221487B1 (en) 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6210801B1 (en) 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
FI119383B (sv) * 1998-03-06 2008-10-31 Andritz Oy Förfarande för behandling av massa
BE1012675A6 (fr) * 1999-05-11 2001-02-06 Solvay Procede de blanchiment de pate a papier.
US6686039B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps
US6685856B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products method
US6797113B2 (en) 1999-02-24 2004-09-28 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps method
US6686040B2 (en) 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products
US20030131958A1 (en) * 2001-11-30 2003-07-17 Thomas Jaschinski Use of ozone for increasing the wet strength of paper and nonwoven
GB2382592A (en) * 2001-11-30 2003-06-04 Sca Hygiene Prod Gmbh Use of ozone to enhance the wet strength of fibrous cellulosic material
US20050051288A1 (en) * 2003-09-09 2005-03-10 Caifang Yin Extended retention and medium consistency pulp treatment
US8262850B2 (en) * 2003-09-23 2012-09-11 International Paper Company Chemical activation and refining of southern pine kraft fibers
SE526241C2 (sv) * 2003-12-18 2005-08-02 Metso Paper Inc Förfarande för att surgöra lignocellulosahaltig massa före ozonblekning
US20070246176A1 (en) * 2004-06-08 2007-10-25 Shoichi Miyawaki Pulp Bleaching Processes
DK3575489T3 (da) 2005-05-02 2021-05-17 Int Paper Co Lignocellulosematerialer og produkter fremstillet deraf
US7914776B2 (en) * 2005-10-07 2011-03-29 Adolor Corporation Solid dispersions of opioid antagonists
EP1811080A1 (en) * 2006-01-24 2007-07-25 Solvay SA Process for the bleaching of mechanical paper pulp
FI123102B (sv) * 2006-03-31 2012-11-15 Laennen Tutkimus Western Res Inc Oy Blekningsförfarande för kemisk massa
FI122626B (sv) * 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Blekningsförfarande för kemisk massa
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
WO2008101952A1 (en) * 2007-02-21 2008-08-28 Solvay (Societe Anonyme) Process for the bleaching of paper pulp
US8262856B2 (en) * 2007-06-18 2012-09-11 Andritz Inc. Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone
KR101797943B1 (ko) 2009-05-28 2017-11-15 게페 첼루로제 게엠베하 화학적 크래프트 섬유로부터의 변형된 셀룰로즈 및 이들을 제조 및 사용하는 방법
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
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
BR112015019882A2 (pt) 2013-03-14 2017-07-18 Gp Cellulose Gmbh fibra kraft clareada oxidada e métodos para fazer polpa kraft e fibra kraft de madeira macia e para clarear polpa kraft de celulose em sequência de branqueamento de multi-estágios
CA2901915A1 (en) 2013-03-15 2014-09-18 Gp Cellulose Gmbh A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
US10865519B2 (en) 2016-11-16 2020-12-15 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
RU2729701C1 (ru) 2017-03-21 2020-08-11 Интернэшнл Пэйпа Кампани Целлюлозная композиция со способностью устранения неприятного запаха
JP7229904B2 (ja) * 2019-11-29 2023-02-28 東京エレクトロン株式会社 プラズマ処理装置における載置台のクリーニング方法およびプラズマ処理装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE225253C1 (sv) 1969-02-25
GB1062734A (en) 1963-03-21 1967-03-22 Mo Och Domsjoe Ab Improvements in or relating to bleaching cellulose pulp
US3507743A (en) 1965-02-23 1970-04-21 Fmc Corp Bleaching of wood pulps with reductive bleaching agents and thiourea
US3992248A (en) 1969-05-19 1976-11-16 Stadler Hurter Limited Continuous feeding system for treatment towers
NO152907C (no) * 1983-06-29 1985-12-11 Peterson & Son As M Fremgangsmaate til delignifisering av kjemisk masse.
SE452345B (sv) 1984-04-02 1987-11-23 Kamyr Ab Anordning for fordelning av suspension vid dess inforande i behandlingskerl
US5089089A (en) * 1984-12-31 1992-02-18 Bear Island Paper Company System for sulfonating mechanical pulp fibers
US5034095A (en) 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
US5372679A (en) 1992-06-08 1994-12-13 Air Products And Chemicals, Inc. Reactor system for treating cellulosic pulp at a constant upward flow velocity
ATE146833T1 (de) 1992-11-27 1997-01-15 Eka Chemicals Ab Verfahren zur deligrifizierung von lignocellulosehaltigem zellstoff
ATE184060T1 (de) 1993-04-20 1999-09-15 Eka Chemicals Ab Verfahren zum bleichen von lignozellulose- enthaltendem zellstoff
BE1007700A3 (fr) * 1993-11-04 1995-10-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
FI98839B (sv) 1994-03-16 1997-05-15 Ahlstrom Machinery Oy Förfarande för blekning av massa
US5438737A (en) * 1994-04-14 1995-08-08 National Molding Corporation Snap closure type buckle with quick release
SE502135C2 (sv) 1994-08-16 1995-08-28 Kvaerner Pulping Tech Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg
FI102301B (sv) 1994-10-13 1998-11-13 Andritz Oy Förfarande för behandling av cellulosamassor
WO1996025552A1 (en) * 1995-02-17 1996-08-22 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide

Also Published As

Publication number Publication date
EP0856080B1 (en) 2001-07-18
WO1997015713A1 (en) 1997-05-01
FI955878A0 (sv) 1995-12-07
AU7301696A (en) 1997-05-15
ES2158355T3 (es) 2001-09-01
DE69613989D1 (de) 2001-08-23
FI960214L (sv) 1997-04-21
FI105701B (sv) 2000-09-29
CA2235325C (en) 2006-02-14
CA2235325A1 (en) 1997-05-01
BR9611258A (pt) 1999-07-13
PT856080E (pt) 2001-11-30
FI960214A0 (sv) 1996-01-17
ATE203291T1 (de) 2001-08-15
EP0856080A1 (en) 1998-08-05
US20010004005A1 (en) 2001-06-21
FI104574B (sv) 2000-02-29
US20010020521A1 (en) 2001-09-13
US6306253B2 (en) 2001-10-23

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: AHLSTROM CORPORATION

RF Appeal filed
FCK Appeal rejected