FI960757A0 - Korkeasaantomassojen valkaisumenetelmä - Google Patents

Korkeasaantomassojen valkaisumenetelmä

Info

Publication number
FI960757A0
FI960757A0 FI960757A FI960757A FI960757A0 FI 960757 A0 FI960757 A0 FI 960757A0 FI 960757 A FI960757 A FI 960757A FI 960757 A FI960757 A FI 960757A FI 960757 A0 FI960757 A0 FI 960757A0
Authority
FI
Finland
Prior art keywords
high yield
bleaching process
masses
yield masses
bleaching
Prior art date
Application number
FI960757A
Other languages
English (en)
Swedish (sv)
Other versions
FI115642B (fi
FI960757A (fi
Inventor
Ilkka Renvall
Aarto Paren
Reijo Aksela
Original Assignee
Kemira Chemicals 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=8545486&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI960757(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Priority to FI960757A priority Critical patent/FI115642B/fi
Publication of FI960757A0 publication Critical patent/FI960757A0/fi
Priority to DE69731617T priority patent/DE69731617T2/de
Priority to AU17974/97A priority patent/AU1797497A/en
Priority to EP97903409A priority patent/EP0882152B1/en
Priority to PCT/FI1997/000107 priority patent/WO1997030209A1/en
Publication of FI960757A publication Critical patent/FI960757A/fi
Application granted granted Critical
Publication of FI115642B publication Critical patent/FI115642B/fi

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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • 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
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI960757A 1996-02-19 1996-02-19 Korkeasaantomassojen valkaisumenetelmä FI115642B (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI960757A FI115642B (fi) 1996-02-19 1996-02-19 Korkeasaantomassojen valkaisumenetelmä
DE69731617T DE69731617T2 (de) 1996-02-19 1997-02-19 Verfahren zum bleichen von hochausbeutepapierzellstoff
AU17974/97A AU1797497A (en) 1996-02-19 1997-02-19 Process for bleaching of a high yield pulp
EP97903409A EP0882152B1 (en) 1996-02-19 1997-02-19 Process for bleaching of a high yield pulp
PCT/FI1997/000107 WO1997030209A1 (en) 1996-02-19 1997-02-19 Process for bleaching of a high yield pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI960757 1996-02-19
FI960757A FI115642B (fi) 1996-02-19 1996-02-19 Korkeasaantomassojen valkaisumenetelmä

Publications (3)

Publication Number Publication Date
FI960757A0 true FI960757A0 (fi) 1996-02-19
FI960757A FI960757A (fi) 1997-08-20
FI115642B FI115642B (fi) 2005-06-15

Family

ID=8545486

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960757A FI115642B (fi) 1996-02-19 1996-02-19 Korkeasaantomassojen valkaisumenetelmä

Country Status (5)

Country Link
EP (1) EP0882152B1 (fi)
AU (1) AU1797497A (fi)
DE (1) DE69731617T2 (fi)
FI (1) FI115642B (fi)
WO (1) WO1997030209A1 (fi)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19630278A1 (de) * 1996-07-26 1998-01-29 Basf Ag Komplexbildner für die Zellstoff- und Holzstoffbleiche, die Papierherstellung sowie das Deinking von Altpapier
FI106258B (fi) 1998-03-09 2000-12-29 Kemira Chemicals Oy Menetelmiä N-bis-[2-(1,2-dikarboksi-etoksi)-etyyli]amiinijohdannaisen valmistamiseksi sekä menetelmien tuotteet ja niiden käytöt
EP1811080A1 (en) * 2006-01-24 2007-07-25 Solvay SA Process for the bleaching of mechanical paper pulp
GB0714575D0 (en) * 2007-07-26 2007-09-05 Innospec Ltd Composition
GB0721587D0 (en) 2007-11-02 2007-12-12 Innospec Ltd Process for bleaching pulp
PL2083117T3 (pl) 2008-01-16 2013-08-30 Bim Kemi Ab Kompozycja krzemionki
GB0901207D0 (en) 2009-01-26 2009-03-11 Innospec Ltd Chelating agents and methods relating thereto
BRPI1016066A2 (pt) * 2009-05-29 2016-06-07 Solvay "processo para o alvejamento de polpa de papel com um ou mais agentes oxidantes de peróxido, e, uso de componente"
FI127900B (fi) * 2014-05-27 2019-05-15 Upm Kymmene Corp Menetelmä fosforikuormituksen vähentämiseksi massantuotantoprosessin jätevedestä
CN107974856B (zh) * 2017-11-23 2020-09-22 华南理工大学 一种绿色螯合剂在纸浆过氧化氢漂白中应用的方法
CN108589376A (zh) * 2018-04-19 2018-09-28 华南理工大学 一种利用亚氨基二琥珀酸四钠作为螯合剂辅助h2o2漂白occ的方法
CN108997170B (zh) * 2018-08-07 2021-04-06 贾国苓 一种易碱解多羧基螯合物及其制备工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362412A (en) * 1991-04-17 1994-11-08 Hampshire Chemical Corp. Biodegradable bleach stabilizers for detergents
GB9216408D0 (en) * 1992-08-01 1992-09-16 Procter & Gamble Stabilized bleaching compositions
DE4340043A1 (de) * 1993-11-24 1995-06-01 Henkel Kgaa Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche
DE4445931A1 (de) * 1994-12-22 1996-06-27 Basf Ag Verwendung von Hydroxyalkylaminocarbonsäuren als Komplexbildner

Also Published As

Publication number Publication date
FI115642B (fi) 2005-06-15
EP0882152A1 (en) 1998-12-09
EP0882152B1 (en) 2004-11-17
WO1997030209A1 (en) 1997-08-21
FI960757A (fi) 1997-08-20
DE69731617T2 (de) 2005-03-31
AU1797497A (en) 1997-09-02
DE69731617D1 (de) 2004-12-23

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