ATE287986T1 - Verfahren zur herstellung von vorgereignigtem zellstoff - Google Patents

Verfahren zur herstellung von vorgereignigtem zellstoff

Info

Publication number
ATE287986T1
ATE287986T1 AT98660126T AT98660126T ATE287986T1 AT E287986 T1 ATE287986 T1 AT E287986T1 AT 98660126 T AT98660126 T AT 98660126T AT 98660126 T AT98660126 T AT 98660126T AT E287986 T1 ATE287986 T1 AT E287986T1
Authority
AT
Austria
Prior art keywords
pulp
breaked
producing pre
liquors
lignin
Prior art date
Application number
AT98660126T
Other languages
English (en)
Inventor
Panu Tikka
Mikael Svedman
Thomas Fant
Original Assignee
Metso Paper Pori 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=8550079&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE287986(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Metso Paper Pori Oy filed Critical Metso Paper Pori Oy
Application granted granted Critical
Publication of ATE287986T1 publication Critical patent/ATE287986T1/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Inorganic Insulating Materials (AREA)
AT98660126T 1997-12-08 1998-11-18 Verfahren zur herstellung von vorgereignigtem zellstoff ATE287986T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI974455A FI122654B (fi) 1997-12-08 1997-12-08 Menetelmä paperisellumassan valmistamiseksi

Publications (1)

Publication Number Publication Date
ATE287986T1 true ATE287986T1 (de) 2005-02-15

Family

ID=8550079

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98660126T ATE287986T1 (de) 1997-12-08 1998-11-18 Verfahren zur herstellung von vorgereignigtem zellstoff

Country Status (6)

Country Link
US (1) US6533896B1 (de)
EP (1) EP0921228B1 (de)
JP (1) JPH11241285A (de)
AT (1) ATE287986T1 (de)
BR (1) BR9805237A (de)
FI (1) FI122654B (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520874E (sv) 2001-11-30 2013-01-15 Stfi Packforsk Ab Avlägsnande av oorganiska grundämnen från träflis före kokning till massa
SE518538C2 (sv) * 2001-12-14 2002-10-22 Kvaerner Pulping Tech Förbehandling av flis med färsk vitlut före behandling med svartlut
SE525064C2 (sv) * 2003-04-17 2004-11-23 Kvaerner Pulping Tech Metod för impregnering av flis med sur behandlingsvätska i samband med sulfatkokning av cellulosamassa
CA2452145A1 (en) * 2003-06-03 2004-12-03 David Tarasenko Method for producing pulp and lignin
US20050115690A1 (en) * 2003-11-25 2005-06-02 Casella Waste Systems, Inc. Methods for producing recycled pulp from waste paper
US8317975B2 (en) 2004-04-20 2012-11-27 The Research Foundation Of The State University Of New York Product and processes from an integrated forest biorefinery
US7520958B2 (en) * 2005-05-24 2009-04-21 International Paper Company Modified kraft fibers
EP1883731B1 (de) 2005-05-24 2015-11-11 International Paper Company Modifizierte kraftfasern
RU2383675C1 (ru) * 2005-12-07 2010-03-10 Келли Энтони О`ФЛИНН Осуществляемый в каталитическом реакторе процесс производства промышленной целлюлозной массы, нативного лигнина и одноклеточного белка
US20070167618A1 (en) * 2006-01-13 2007-07-19 Celanese Acetate, Llc Manufacture of cellulose esters: recycle of caustic and/or acid from pre-treatment of pulp
FI20065105A0 (fi) * 2006-02-10 2006-02-10 Metso Paper Inc Menetelmä hydrolyysituotteiden talteenottamiseksi
FI123036B (fi) 2006-02-10 2012-10-15 Metso Paper Inc Menetelmä hydrolyysituotteiden talteenottamiseksi
AT503610B1 (de) * 2006-05-10 2012-03-15 Chemiefaser Lenzing Ag Verfahren zur herstellung eines zellstoffes
US8734610B2 (en) * 2007-05-23 2014-05-27 Andritz Inc. Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method
CA2754521C (en) * 2009-03-09 2015-11-10 Kiram Ab A shaped cellulose manufacturing process combined with a pulp mill recovery system
CA2786949C (en) 2010-02-08 2018-06-05 Iogen Energy Corporation Method for scale removal during a lignocellulosic conversion process
KR20110123184A (ko) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 높은 알파 용해 펄프 제조를 위한 방법 및 시스템
CN103003487B (zh) * 2010-05-04 2016-04-27 巴伊亚特种纤维素公司 高α溶解浆生产的方法和系统
FI20105799A0 (fi) * 2010-07-13 2010-07-13 Olli Joutsimo Parantunut kemiallisen massan valmistusprosessi
US9371612B2 (en) * 2011-02-22 2016-06-21 Andritz Inc. Method and apparatus to produce pulp using pre-hydrolysis and Kraft cooking
RU2546497C1 (ru) * 2011-05-13 2015-04-10 Вальмет Актиеболаг Компактный способ производства предварительно гидролизованной целлюлозы
SE539706C2 (en) * 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolyzate
SE538454C2 (en) * 2014-11-27 2016-07-12 Valmet Oy Method for displacement in batch digesters
BR112017028625B1 (pt) 2015-06-30 2021-10-13 Anellotech, Inc Processo melhorado de pirólise catalítica rápida com remoção de impureza
SE542430C2 (en) * 2017-09-19 2020-04-28 Domsjoe Fabriker Ab Removal of inorganic elements from wood chips
SE1950402A1 (en) * 2019-04-01 2020-10-02 Valmet Oy Method for extracting hemicellulose from lignocellulosic material

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923591A (en) * 1972-03-21 1975-12-02 Process Evaluation Devel Prehydrolysis and digestion of fibrous lignocellulosic material
SE380298B (sv) * 1974-03-14 1975-11-03 Mo Forfarande for delignifiering genom syrgas-alkalibehandling av lignocelluosahaltigt material
US4087318A (en) 1974-03-14 1978-05-02 Mo Och Domsjo Aktiebolag Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound
GB1505529A (en) * 1974-06-14 1978-03-30 Mo Och Domsjoe Ab Method for the oxygen-gas delignification of lignocellulosic material and apparatus for carrying out the method
US4198266A (en) 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
US4436586A (en) 1982-01-22 1984-03-13 Kamyr, Inc. Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
IN167959B (de) * 1985-08-05 1991-01-12 Interox
US4826567A (en) 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for the delignification of cellulosic substances by pretreating with a complexing agent followed by hydrogen peroxide
US4826568A (en) 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for delignification of cellulosic substances by pretreating with a complexing agent followed by peroxide prior to kraft digestion
SE502667C2 (sv) 1993-07-12 1995-12-04 Kvaerner Pulping Tech Behandling av fibermaterial med komplexbildare före kokning
US5424417A (en) * 1993-09-24 1995-06-13 Midwest Research Institute Prehydrolysis of lignocellulose
FI103898B1 (fi) 1994-01-24 1999-10-15 Sunds Defibrator Pori Oy Menetelmä prehydrolysoidun sellun ja/tai sellumassan tuottamiseksi
FI102301B1 (fi) * 1994-10-13 1998-11-13 Ahlstrom Machinery Oy Menetelmä selluloosamassojen käsittelemiseksi

Also Published As

Publication number Publication date
EP0921228A3 (de) 2000-02-23
EP0921228B1 (de) 2005-01-26
FI974455L (fi) 1999-06-09
US6533896B1 (en) 2003-03-18
FI122654B (fi) 2012-05-15
JPH11241285A (ja) 1999-09-07
BR9805237A (pt) 1999-11-09
EP0921228A2 (de) 1999-06-09
FI974455A0 (fi) 1997-12-08

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