EP1223245A3 - Verfahren zur Reinigung einer Suspension aus Primärfaserstoff - Google Patents

Verfahren zur Reinigung einer Suspension aus Primärfaserstoff Download PDF

Info

Publication number
EP1223245A3
EP1223245A3 EP02000753A EP02000753A EP1223245A3 EP 1223245 A3 EP1223245 A3 EP 1223245A3 EP 02000753 A EP02000753 A EP 02000753A EP 02000753 A EP02000753 A EP 02000753A EP 1223245 A3 EP1223245 A3 EP 1223245A3
Authority
EP
European Patent Office
Prior art keywords
floatation
pulp
cleaning
cellulose
bleaching
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.)
Granted
Application number
EP02000753A
Other languages
English (en)
French (fr)
Other versions
EP1223245A2 (de
EP1223245B1 (de
Inventor
Volker Dr. Gehr
Peter Respondek
Martin Kemper
Peter Schweiss
Thomas Martin
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.)
Voith Paper Fiber and Environmental Solutions GmbH and Co KG
Original Assignee
Voith Paper Fiber Systems GmbH and Co KG
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=7804657&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1223245(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Paper Fiber Systems GmbH and Co KG filed Critical Voith Paper Fiber Systems GmbH and Co KG
Publication of EP1223245A2 publication Critical patent/EP1223245A2/de
Publication of EP1223245A3 publication Critical patent/EP1223245A3/de
Application granted granted Critical
Publication of EP1223245B1 publication Critical patent/EP1223245B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means
    • 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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Das erfindungsgemäße Verfahren dient dazu, eine Suspension (S) aus Primärfaserstoff nach dem Bleichen von Verunreinigungen zu befreien, wozu eine Eindickstufe (9) und für deren Filtrat ein Flotationsverfahren (7) angewendet werden. Die Verunreinigungen sind z. B. Harze oder kleine Splitter. Durch das Verfahren wird insbesondere die Sauberkeit und der Weißgrad des Primärfaserstoffes erhöht.
EP02000753A 1996-09-05 1997-07-15 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff Revoked EP1223245B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19635967A DE19635967A1 (de) 1996-09-05 1996-09-05 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff
DE19635967 1996-09-05
EP97112005A EP0828026B1 (de) 1996-09-05 1997-07-15 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97112005A Division EP0828026B1 (de) 1996-09-05 1997-07-15 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff

Publications (3)

Publication Number Publication Date
EP1223245A2 EP1223245A2 (de) 2002-07-17
EP1223245A3 true EP1223245A3 (de) 2004-06-02
EP1223245B1 EP1223245B1 (de) 2005-10-26

Family

ID=7804657

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97112005A Expired - Lifetime EP0828026B1 (de) 1996-09-05 1997-07-15 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff
EP02000753A Revoked EP1223245B1 (de) 1996-09-05 1997-07-15 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97112005A Expired - Lifetime EP0828026B1 (de) 1996-09-05 1997-07-15 Verfahren zur Reinigung einer Suspension aus Primärfaserstoff

Country Status (3)

Country Link
EP (2) EP0828026B1 (de)
AT (2) ATE307923T1 (de)
DE (3) DE19635967A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629300B (zh) * 2018-12-28 2021-08-24 四川凤生纸业科技股份有限公司 用于纸浆生产线的高效制浆系统及洗浆工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107700263B (zh) * 2016-08-08 2020-10-09 迅普精工株式会社 脱墨装置和废纸再生处理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522334A1 (de) * 1991-07-12 1993-01-13 Nalco Chemical Company Verfahren zur Behandlung von BCTMP/CTMP-Abwasser
DE4317466A1 (de) * 1993-05-26 1994-12-01 Degussa Verbessertes Verfahren zur Bleiche von Holzstoffen
WO1996006978A1 (en) * 1994-08-31 1996-03-07 Hoffman Environmental Systems, Inc. Method of papermaking having zero liquid discharge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE310554C (de) *

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522334A1 (de) * 1991-07-12 1993-01-13 Nalco Chemical Company Verfahren zur Behandlung von BCTMP/CTMP-Abwasser
DE4317466A1 (de) * 1993-05-26 1994-12-01 Degussa Verbessertes Verfahren zur Bleiche von Holzstoffen
WO1996006978A1 (en) * 1994-08-31 1996-03-07 Hoffman Environmental Systems, Inc. Method of papermaking having zero liquid discharge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629300B (zh) * 2018-12-28 2021-08-24 四川凤生纸业科技股份有限公司 用于纸浆生产线的高效制浆系统及洗浆工艺

Also Published As

Publication number Publication date
DE59708425D1 (de) 2002-11-14
EP0828026B1 (de) 2002-10-09
EP0828026A1 (de) 1998-03-11
ATE225878T1 (de) 2002-10-15
DE19635967A1 (de) 1998-03-12
EP1223245A2 (de) 2002-07-17
DE59712461D1 (de) 2005-12-01
EP1223245B1 (de) 2005-10-26
ATE307923T1 (de) 2005-11-15

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