CA2285714C - Lessiveur en continu a separateur superieur inverse - Google Patents

Lessiveur en continu a separateur superieur inverse Download PDF

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Publication number
CA2285714C
CA2285714C CA002285714A CA2285714A CA2285714C CA 2285714 C CA2285714 C CA 2285714C CA 002285714 A CA002285714 A CA 002285714A CA 2285714 A CA2285714 A CA 2285714A CA 2285714 C CA2285714 C CA 2285714C
Authority
CA
Canada
Prior art keywords
digester
liquid
separator
liquor
chips
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA002285714A
Other languages
English (en)
Other versions
CA2285714A1 (fr
Inventor
C. Bertil Stromberg
Richard Laakso
Kaj O. Henricson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Inc
Original Assignee
Andritz Inc
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=22710253&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2285714(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US09/192,578 external-priority patent/US6174411B1/en
Application filed by Andritz Inc filed Critical Andritz Inc
Publication of CA2285714A1 publication Critical patent/CA2285714A1/fr
Application granted granted Critical
Publication of CA2285714C publication Critical patent/CA2285714C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • D21C7/00—Digesters
    • D21C7/06—Feeding devices
    • 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
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous 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
    • D21C7/00—Digesters

Landscapes

  • Paper (AREA)
CA002285714A 1998-11-17 1999-10-07 Lessiveur en continu a separateur superieur inverse Expired - Fee Related CA2285714C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/192,578 US6174411B1 (en) 1997-02-10 1998-11-17 Continuous digester with inverted top separator
US09/192,578 1998-11-17

Publications (2)

Publication Number Publication Date
CA2285714A1 CA2285714A1 (fr) 2000-05-17
CA2285714C true CA2285714C (fr) 2004-09-21

Family

ID=22710253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002285714A Expired - Fee Related CA2285714C (fr) 1998-11-17 1999-10-07 Lessiveur en continu a separateur superieur inverse

Country Status (4)

Country Link
JP (2) JP3461311B2 (fr)
CA (1) CA2285714C (fr)
FI (1) FI122630B (fr)
SE (1) SE522877C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7309401B2 (en) * 2003-05-12 2007-12-18 Andritz Inc. Top separator for gas phase and hydraulic phase continuous digesters and method for converting digester
KR100692394B1 (ko) 2005-08-10 2007-03-09 주식회사 새 한 보론 제거 기능이 있는 역삼투 분리막의 제조방법
SE529573C2 (sv) * 2006-12-13 2007-09-18 Metso Fiber Karlstad Ab Metod för att energieffektivt producera cellulosamassa i ett kontinuerligt kokeri
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
US20090188641A1 (en) * 2008-01-30 2009-07-30 Andritz Inc. Method and system for measuring and controlling digester or impregnation vessel chip level by measuring chip pressure
SE543151C2 (en) * 2018-07-02 2020-10-13 Valmet Oy Feeding system and method for feeding comminuted cellulosic material to a high-pressure treatment zone

Also Published As

Publication number Publication date
SE9903470L (sv) 2000-05-18
JP3461311B2 (ja) 2003-10-27
JP2000154486A (ja) 2000-06-06
FI19992099A (fi) 2000-05-17
SE9903470D0 (sv) 1999-09-24
JP3898160B2 (ja) 2007-03-28
CA2285714A1 (fr) 2000-05-17
SE522877C2 (sv) 2004-03-16
FI122630B (fi) 2012-04-30
JP2003328286A (ja) 2003-11-19

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Effective date: 20141007