ATE254687T1 - Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen - Google Patents

Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen

Info

Publication number
ATE254687T1
ATE254687T1 AT96935649T AT96935649T ATE254687T1 AT E254687 T1 ATE254687 T1 AT E254687T1 AT 96935649 T AT96935649 T AT 96935649T AT 96935649 T AT96935649 T AT 96935649T AT E254687 T1 ATE254687 T1 AT E254687T1
Authority
AT
Austria
Prior art keywords
pulp
delignification
oxygen
lignocellulosh
stages
Prior art date
Application number
AT96935649T
Other languages
English (en)
Inventor
Monica Bokstroem
Pia Mellander
Solveig Norden
Original Assignee
Valmet Fibertech 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=20399927&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE254687(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valmet Fibertech Ab filed Critical Valmet Fibertech Ab
Application granted granted Critical
Publication of ATE254687T1 publication Critical patent/ATE254687T1/de

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
    • D21C9/147—Bleaching ; 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)
  • Detergent Compositions (AREA)
AT96935649T 1995-10-23 1996-09-18 Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen ATE254687T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9503720A SE505141C2 (sv) 1995-10-23 1995-10-23 Syrgasdelignifiering av massa i två steg med hög satsning av alkali och syrgas och temperatur under 90 C i första steget
PCT/SE1996/001154 WO1997015715A1 (en) 1995-10-23 1996-09-18 Oxygen delignification of lignocellulosic pulp in two steps

Publications (1)

Publication Number Publication Date
ATE254687T1 true ATE254687T1 (de) 2003-12-15

Family

ID=20399927

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96935649T ATE254687T1 (de) 1995-10-23 1996-09-18 Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen

Country Status (18)

Country Link
US (1) US6221206B1 (de)
EP (1) EP0857231B1 (de)
JP (1) JP3459072B2 (de)
CN (1) CN1072743C (de)
AT (1) ATE254687T1 (de)
AU (1) AU691132B2 (de)
BR (1) BR9611243A (de)
CA (1) CA2231048C (de)
DE (1) DE69630803T2 (de)
ES (1) ES2206598T3 (de)
MY (1) MY117900A (de)
NO (1) NO324111B1 (de)
NZ (1) NZ320687A (de)
PT (1) PT857231E (de)
RU (1) RU2148118C1 (de)
SE (1) SE505141C2 (de)
WO (1) WO1997015715A1 (de)
ZA (1) ZA967932B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510740C2 (sv) 1996-11-26 1999-06-21 Sunds Defibrator Ind Ab Styrning av syrgasdelignifiering
SE9803474L (sv) * 1998-10-08 2000-04-09 Valmet Fibertech Ab Syrgasblekning av massa
FI113187B (fi) 1999-05-28 2007-09-25 Metso Paper Pori Oy Menetelmä massan käsittelemiseksi
SE522593C2 (sv) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
FI117391B (fi) 2000-05-16 2006-09-29 Andritz Oy Menetelmä ja laitteisto massan käsittelemiseksi
US20050087315A1 (en) * 2003-10-28 2005-04-28 Donovan Joseph R. Low consistency oxygen delignification process
SE0403202L (sv) * 2004-12-30 2005-10-25 Kvaerner Pulping Tech Metod för syrgasdelignifiering av cellulosamassa med inmixning av kemikalier vid högt tryck
SE526843C2 (sv) * 2004-12-30 2005-11-08 Kvaerner Pulping Tech Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg
CN100400744C (zh) * 2006-05-26 2008-07-09 华南理工大学 中浓纸浆稳压双升流塔氧气漂白方法
US9469548B2 (en) 2015-02-20 2016-10-18 Hydro Dynamics, Inc. Continuous hydrodynamic cavitation crystallization
US10220365B2 (en) 2015-03-31 2019-03-05 Hydro Dynamics, Inc. Method and apparatus for hydrogenating substances using controlled mechanically induced cavitation
CN107614694B (zh) * 2015-04-10 2022-03-11 彗星生物炼制公司 用于处理纤维素类生物质的方法和组合物和由此生产的产品
US10011804B2 (en) 2015-08-21 2018-07-03 Ecoxtraction, Llc Method of extracting CBD, THC, and other compounds from cannabis using controlled cavitation
CN111344455B (zh) * 2017-09-11 2022-10-28 索理思科技公司 用于增强化学木浆的氧脱木质素的方法
MX2022013533A (es) 2020-04-30 2022-11-16 Hydro Dynamics Inc Sistema y metodo para el tratamiento de plantas para la sintesis de compuestos de las mismas.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI71178C (fi) * 1984-11-08 1988-05-18 Rauma Repola Oy Foerfarande foer reglering av syreblekningsprocess.
AU595842B2 (en) * 1985-11-15 1990-04-12 Canadian Liquid Air Ltd. Pulp bleaching
US5217575A (en) * 1988-10-18 1993-06-08 Kamyr Ab Process for oxygen bleaching using two vertical reactors
US4946556A (en) * 1989-04-25 1990-08-07 Kamyr, Inc. Method of oxygen delignifying wood pulp with between stage washing
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp

Also Published As

Publication number Publication date
MY117900A (en) 2004-08-30
SE9503720D0 (sv) 1995-10-23
US6221206B1 (en) 2001-04-24
NZ320687A (en) 1998-11-25
RU2148118C1 (ru) 2000-04-27
BR9611243A (pt) 1999-03-30
NO981794D0 (no) 1998-04-22
ZA967932B (en) 1997-04-07
SE9503720L (sv) 1997-04-24
WO1997015715A1 (en) 1997-05-01
JPH11514410A (ja) 1999-12-07
EP0857231B1 (de) 2003-11-19
JP3459072B2 (ja) 2003-10-20
CN1072743C (zh) 2001-10-10
DE69630803T2 (de) 2004-09-30
SE505141C2 (sv) 1997-06-30
CA2231048C (en) 2007-11-20
ES2206598T3 (es) 2004-05-16
DE69630803D1 (de) 2003-12-24
EP0857231A1 (de) 1998-08-12
AU7348396A (en) 1997-05-15
CN1200154A (zh) 1998-11-25
CA2231048A1 (en) 1997-05-01
PT857231E (pt) 2004-04-30
NO981794L (no) 1998-04-22
NO324111B1 (no) 2007-08-27
AU691132B2 (en) 1998-05-07

Similar Documents

Publication Publication Date Title
DE69630803D1 (de) Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen
ATE193910T1 (de) Qxidativbleichen von zellstoff mit vanadium- substituieren polyoxometallen
NO993247L (no) Fremgangsmåte for fremstilling av tolterodin
FI874113A0 (fi) Foerfarande foer behandling av pappersmassa med entzymloesning.
MX9606571A (es) Estructura de papel que tiene por lo menos tres regiones, aparato y proceso para fabricarla.
SE9903215D0 (sv) Method in connection with the production of mechanical pulp
TW281705B (de)
NO20001989D0 (no) Nytt materiale og prosess for produksjon av dette
SE9802844D0 (sv) Method for continuous cooking of lignocellulosic fibre material
TW270159B (de)
MX9602927A (es) Procedimiento para blanquear pasta pulpa kraft.
ES8503757A1 (es) Un metodo para mejorar la brillantez de una pulpa termomecanica.
CA2374353A1 (en) System for the oxygen delignification of pulp consisting of lignocellulose-containing material
SE9702583L (sv) Förfarande för massaframställning
SE9604350D0 (sv) Blekning av massa
SE9401628D0 (sv) Förfarande vid syrgasdelignifiering
MY110586A (en) Improved bleaching of high consistency lignocellulosic pulp
SE9503694D0 (sv) Blekning av massa
NO975038L (no) Behandling av masse med chelateringsmiddel og påfölgende bleking ved en pH-verdi over 9
NO923145L (no) Bleking av lignocellulosemateriale med dioksiraner
FI871730A0 (fi) Foerfarande foer framstaellning av hemicellulosahydrolysat och specialmassa.
SE8008336L (sv) Forfarande for delignifiering/blekning av cellulosamassa
NO961817L (no) Fremgangsmåte for bleking av kjemisk masse
RU93052951A (ru) Способ получения концентрированного раствора целлюлозы
SE9604217D0 (sv) Method and apparatus for delignifying chemical pu lp

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification

Ref document number: 0857231

Country of ref document: EP

RZN Patent revoked