EP2992136A4 - Method and system for washing of cellulose pulp - Google Patents

Method and system for washing of cellulose pulp

Info

Publication number
EP2992136A4
EP2992136A4 EP14792129.0A EP14792129A EP2992136A4 EP 2992136 A4 EP2992136 A4 EP 2992136A4 EP 14792129 A EP14792129 A EP 14792129A EP 2992136 A4 EP2992136 A4 EP 2992136A4
Authority
EP
European Patent Office
Prior art keywords
washing
cellulose pulp
pulp
cellulose
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.)
Withdrawn
Application number
EP14792129.0A
Other languages
German (de)
French (fr)
Other versions
EP2992136A1 (en
Inventor
Anders Hedblom
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.)
Valmet Oy
Valmet AB
Original Assignee
Valmet Oy
Valmet 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
Application filed by Valmet Oy, Valmet AB filed Critical Valmet Oy
Publication of EP2992136A1 publication Critical patent/EP2992136A1/en
Publication of EP2992136A4 publication Critical patent/EP2992136A4/en
Withdrawn legal-status Critical Current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
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
EP14792129.0A 2013-05-03 2014-04-25 Method and system for washing of cellulose pulp Withdrawn EP2992136A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1300319A SE537925C2 (en) 2013-05-03 2013-05-03 Method and system for washing cellulose pulp
PCT/SE2014/050510 WO2014178780A1 (en) 2013-05-03 2014-04-25 Method and system for washing of cellulose pulp

Publications (2)

Publication Number Publication Date
EP2992136A1 EP2992136A1 (en) 2016-03-09
EP2992136A4 true EP2992136A4 (en) 2016-12-21

Family

ID=51843772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14792129.0A Withdrawn EP2992136A4 (en) 2013-05-03 2014-04-25 Method and system for washing of cellulose pulp

Country Status (4)

Country Link
EP (1) EP2992136A4 (en)
CN (1) CN105189859A (en)
SE (1) SE537925C2 (en)
WO (1) WO2014178780A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587257A (en) * 1967-10-16 1971-06-28 Stadler Hurter International L Bleaching system including a single,triple-deck table washer
WO1999063150A1 (en) * 1998-06-03 1999-12-09 Beloit Technologies, Inc. Two stage counter current drum washer
WO2006027414A1 (en) * 2004-09-07 2006-03-16 Andritz Oy Apparatus and method for washing pulps

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416668A (en) * 1967-08-23 1968-12-17 D & S Engineering Internat Ltd Table filter washer
US5015333A (en) * 1983-07-20 1991-05-14 Beloit Corporation Multi-stage pulp washing within a batch digester
FI83841C (en) * 1989-04-07 1991-09-10 Salomans Oy Process for continuous exchange of the liquid in a suspension of a fibrous or fine-grained material
US5275024A (en) * 1992-05-04 1994-01-04 The Black Clawson Company Paper pulp washing
FI20041518A (en) * 2004-11-25 2006-05-26 Andritz Oy Method and apparatus for treating mesa
SE0602268L (en) * 2006-10-27 2008-04-15 Metso Paper Inc Washing press comprising separation of filtrate
CA2686943C (en) * 2007-05-25 2014-07-15 Metso Paper, Inc. Arrangement for washing and dewatering cellulose pulp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587257A (en) * 1967-10-16 1971-06-28 Stadler Hurter International L Bleaching system including a single,triple-deck table washer
WO1999063150A1 (en) * 1998-06-03 1999-12-09 Beloit Technologies, Inc. Two stage counter current drum washer
WO2006027414A1 (en) * 2004-09-07 2006-03-16 Andritz Oy Apparatus and method for washing pulps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014178780A1 *

Also Published As

Publication number Publication date
EP2992136A1 (en) 2016-03-09
WO2014178780A1 (en) 2014-11-06
SE537925C2 (en) 2015-11-24
CN105189859A (en) 2015-12-23
SE1300319A1 (en) 2014-11-04

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Legal Events

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