SE514825C2 - Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla - Google Patents

Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla

Info

Publication number
SE514825C2
SE514825C2 SE9903321A SE9903321A SE514825C2 SE 514825 C2 SE514825 C2 SE 514825C2 SE 9903321 A SE9903321 A SE 9903321A SE 9903321 A SE9903321 A SE 9903321A SE 514825 C2 SE514825 C2 SE 514825C2
Authority
SE
Sweden
Prior art keywords
white liquor
pulp
oxygen
cellulose pulp
delignification
Prior art date
Application number
SE9903321A
Other languages
English (en)
Swedish (sv)
Other versions
SE9903321L (sv
SE9903321D0 (sv
Inventor
Tor Anders Joergen Engstroem
Anna Tigerstroem
Original Assignee
Aga Ab
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=20417020&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE514825(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of SE9903321D0 publication Critical patent/SE9903321D0/xx
Priority to SE9903321A priority Critical patent/SE514825C2/sv
Application filed by Aga Ab filed Critical Aga Ab
Priority to PCT/SE2000/001803 priority patent/WO2001020075A1/fr
Priority to EP00966628A priority patent/EP1240385B1/fr
Priority to US10/088,180 priority patent/US6691358B1/en
Priority to AU76946/00A priority patent/AU7694600A/en
Priority to CA002384471A priority patent/CA2384471C/fr
Priority to AT00966628T priority patent/ATE498735T1/de
Priority to DE60045639T priority patent/DE60045639D1/de
Publication of SE9903321L publication Critical patent/SE9903321L/
Publication of SE514825C2 publication Critical patent/SE514825C2/sv

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0071Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/147Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)
SE9903321A 1999-09-16 1999-09-16 Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla SE514825C2 (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9903321A SE514825C2 (sv) 1999-09-16 1999-09-16 Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla
DE60045639T DE60045639D1 (de) 1999-09-16 2000-09-18 Oxidierte weisslauge in einem delignifikationsverfahren
PCT/SE2000/001803 WO2001020075A1 (fr) 1999-09-16 2000-09-18 Lessive blanche oxydee dans un procede de delignification
AT00966628T ATE498735T1 (de) 1999-09-16 2000-09-18 Oxidierte weisslauge in einem delignifikationsverfahren
EP00966628A EP1240385B1 (fr) 1999-09-16 2000-09-18 Lessive blanche oxydee dans un procede de delignification
US10/088,180 US6691358B1 (en) 1999-09-16 2000-09-18 Oxidized white liquor in an oxygen delignification process
AU76946/00A AU7694600A (en) 1999-09-16 2000-09-18 Oxidised white liquor in an oxygen delignification process
CA002384471A CA2384471C (fr) 1999-09-16 2000-09-18 Lessive blanche oxydee dans un procede de delignification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903321A SE514825C2 (sv) 1999-09-16 1999-09-16 Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla

Publications (3)

Publication Number Publication Date
SE9903321D0 SE9903321D0 (sv) 1999-09-16
SE9903321L SE9903321L (sv) 2001-03-17
SE514825C2 true SE514825C2 (sv) 2001-04-30

Family

ID=20417020

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903321A SE514825C2 (sv) 1999-09-16 1999-09-16 Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla

Country Status (8)

Country Link
US (1) US6691358B1 (fr)
EP (1) EP1240385B1 (fr)
AT (1) ATE498735T1 (fr)
AU (1) AU7694600A (fr)
CA (1) CA2384471C (fr)
DE (1) DE60045639D1 (fr)
SE (1) SE514825C2 (fr)
WO (1) WO2001020075A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050150618A1 (en) * 2000-05-17 2005-07-14 Bijan Kazem Methods of processing lignocellulosic pulp with cavitation
CA2526333C (fr) * 2003-05-19 2011-12-06 Hydro Dynamics, Inc. Procede et appareil de mise en oeuvre d'une reaction chimique en presence de cavitation et d'un courant electrique
WO2005021050A1 (fr) * 2003-08-22 2005-03-10 Hydro Dynamics, Inc. Procede et appareil d'irradiation de fluides
SE525773C2 (sv) 2003-09-24 2005-04-26 Kvaerner Pulping Tech Metod och arrangemang för syrgasdelignifiering av cellulosamassa med pH-reglering i slutfasen
KR100692509B1 (ko) * 2004-10-20 2007-03-09 강춘원 목질 흡음성 개선방법 및 목질 흡음재
WO2008106083A2 (fr) * 2007-02-26 2008-09-04 Andritz Inc. Procédés et systèmes d'utilisation de filtrat recyclé dans le blanchiment de pâte à papier
US8430968B2 (en) 2008-01-22 2013-04-30 Hydro Dynamics, Inc. Method of extracting starches and sugar from biological material using controlled cavitation
US20160002858A1 (en) * 2014-07-03 2016-01-07 Linde Aktiengesellschaft Methods for the oxygen-based delignification of pulp
DE102020002445A1 (de) 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Herstellung von gebleichtem Zellstoff
DE102020002446A1 (de) * 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Weißlaugenoxidation
EP4428297A1 (fr) * 2023-03-06 2024-09-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé pour obtenir une liqueur blanche entièrement oxydée pour une utilisation dans la ligne de fibres d'un procédé de pâte kraft

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964962A (en) * 1974-02-25 1976-06-22 Ingersoll-Rand Company Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit
US5352332A (en) 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
US5382322A (en) * 1991-10-18 1995-01-17 Air Products And Chemicals, Inc. Selective white liquor oxidation
WO1994001616A1 (fr) * 1992-07-09 1994-01-20 Kamyr, Inc. Oxydation de lessive fraiche a utiliser dans une usine de blanchiment de papier
DE4222934C1 (de) 1992-07-11 1993-10-07 Schieber Universal Maschf Flachstrickmaschine
US5439556A (en) * 1993-08-16 1995-08-08 The Boc Group, Inc. Oxidation of white liquor using a packing column
SE516030C2 (sv) 1994-11-14 2001-11-12 Aga Ab Regenerering av en gasblandning från ett ozonbleksteg
SE510740C2 (sv) * 1996-11-26 1999-06-21 Sunds Defibrator Ind Ab Styrning av syrgasdelignifiering

Also Published As

Publication number Publication date
ATE498735T1 (de) 2011-03-15
AU7694600A (en) 2001-04-17
EP1240385A1 (fr) 2002-09-18
EP1240385B1 (fr) 2011-02-16
SE9903321L (sv) 2001-03-17
SE9903321D0 (sv) 1999-09-16
DE60045639D1 (de) 2011-03-31
CA2384471C (fr) 2009-08-04
CA2384471A1 (fr) 2001-03-22
US6691358B1 (en) 2004-02-17
WO2001020075A1 (fr) 2001-03-22

Similar Documents

Publication Publication Date Title
JP2796477B2 (ja) パルプ工場における白液選択酸化法と酸化白液の製法ならびに酸化反応系操作の制御法
SE514825C2 (sv) Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla
FR2467261A1 (fr) Blanchiment de matiere lignocellulosique au moyen d'agents de blanchiment contenant du peroxyde
FI116393B (fi) Menetelmä selluloosamassan delignifioimiseksi ja valkaisemiseksi
JPS6012477B2 (ja) リグノセルロ−ス物質の連続アルカリ脱リグニン化法
NO178079B (no) Fremgangsmåte ved bleking av dissolving-masse
EP0599917B1 (fr) Production d'hydroxyde de metal alcalin et regeneration des liqueurs noirs
JP2787618B2 (ja) セルロース材及びリグニンセルロース繊維状材料の過酸化漂白方法
CN111542661B (zh) 用于调节浆厂的S/Na平衡的方法和系统
EP0091457B1 (fr) Procede de traitement au polysulfure dans une reduction alcaline de pulpe d'un materiau de lignocellulose
EP4428297A1 (fr) Procédé pour obtenir une liqueur blanche entièrement oxydée pour une utilisation dans la ligne de fibres d'un procédé de pâte kraft
SE502135C2 (sv) Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg
US1795756A (en) Production of chemical pulp
SE516030C2 (sv) Regenerering av en gasblandning från ett ozonbleksteg
CN205856913U (zh) 一种废纸浆清洁漂白技术系统
WO1995018884A1 (fr) Procede de recuperation de substances chimiques et d'energie provenant d'effluents de blanchiment de pate a papier
EP1052326A1 (fr) Utilisation de liqueur blanche oxidée dans un procédé Kraft de cuisson
SE523518C2 (sv) Förfarande för beredning och användning av Caros syra vid behandling av vedflis och cellulosamassa
SE530462C2 (sv) Förfarande för återvinning av svavel i en kemisk massaprocess innefattande en oxidation av bisulfit till bisulfat som sedan används för spjälkning av tallolja eller som råvara vid framställningen av magnesiumsulfat
CA2163852A1 (fr) Utilisation de liqueur blanche oxydee
SE526162C2 (sv) Tillverkning av färdigblekt lövvedsmassa i ett klordioxidsteg följt av ett trycksatt peroxidsteg
SE521678C2 (sv) Kontinuerlig sulfatkokning med behandling av flis med avdragen avlut
JPH06264384A (ja) 中濃度パルプの漂白装置
SE9604511A0 (sv) Förfarande för blekning av kraftmassa i ett surt peroxidsteg
JPH10204785A (ja) 化学パルプの漂白前処理方法

Legal Events

Date Code Title Description
CANC Patent cancelled, revoked after opposition
NUG Patent has lapsed