DE69009750D1 - Bleichverfahren zur herstellung von hochweissem zellstoff. - Google Patents

Bleichverfahren zur herstellung von hochweissem zellstoff.

Info

Publication number
DE69009750D1
DE69009750D1 DE69009750T DE69009750T DE69009750D1 DE 69009750 D1 DE69009750 D1 DE 69009750D1 DE 69009750 T DE69009750 T DE 69009750T DE 69009750 T DE69009750 T DE 69009750T DE 69009750 D1 DE69009750 D1 DE 69009750D1
Authority
DE
Germany
Prior art keywords
production
bleaching method
white fabric
stage
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.)
Expired - Lifetime
Application number
DE69009750T
Other languages
English (en)
Inventor
Michel Barbe
Carole Gagne
Celine Leduc
Claude Daneault
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.)
Kvaerner Hymac Inc
Original Assignee
Kvaerner Hymac 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
Application filed by Kvaerner Hymac Inc filed Critical Kvaerner Hymac Inc
Application granted granted Critical
Publication of DE69009750D1 publication Critical patent/DE69009750D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Treatment Of Fiber Materials (AREA)
DE69009750T 1989-03-23 1990-03-22 Bleichverfahren zur herstellung von hochweissem zellstoff. Expired - Lifetime DE69009750D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000594763A CA1340348C (en) 1989-03-23 1989-03-23 Bleaching process for the production of high bright pulps
PCT/CA1990/000097 WO1990011403A1 (en) 1989-03-23 1990-03-22 Bleaching process for the production of high bright pulps

Publications (1)

Publication Number Publication Date
DE69009750D1 true DE69009750D1 (de) 1994-07-14

Family

ID=4139806

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69009750T Expired - Lifetime DE69009750D1 (de) 1989-03-23 1990-03-22 Bleichverfahren zur herstellung von hochweissem zellstoff.

Country Status (5)

Country Link
EP (1) EP0464110B1 (de)
AT (1) ATE106961T1 (de)
CA (1) CA1340348C (de)
DE (1) DE69009750D1 (de)
WO (1) WO1990011403A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH1690H (en) * 1995-07-20 1997-11-04 Nye; Jeffrey Process for bleaching kraft pulp
FI105932B (fi) * 1996-05-30 2000-10-31 Kemira Chemicals Oy Menetelmä korkeasaanto- tai kierrätysmassan valkaisemiseksi
US20030062138A1 (en) * 2001-05-09 2003-04-03 Hache Maurice Joseph Albert Method for brightening mechanical pulps
DE60326113D1 (de) * 2002-11-05 2009-03-26 Rohm & Haas Verfahren zum Bleichen von mechanischer Pulpe
FI122239B (fi) 2004-02-25 2011-10-31 Kemira Oyj Menetelmä kuitumateriaalin käsittelemiseksi ja uusi koostumus
FI120201B (fi) 2004-05-12 2009-07-31 Kemira Oyj Uusi koostumus ja menetelmä kuitumateriaalin käsittelemiseksi
US7967948B2 (en) * 2006-06-02 2011-06-28 International Paper Company Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents
US20100224333A1 (en) 2009-03-09 2010-09-09 Prasad Duggirala Method and chemical composition to improve efficiency of mechanical pulp
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
CN104237211B (zh) * 2014-09-23 2016-09-28 中国科学院长春应用化学研究所 一种鲁米诺化学发光体系和鲁米诺、二氧化硫脲、钴离子浓度的测定方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
DE3661641D1 (en) * 1985-02-15 1989-02-09 Kamyr Ab Multi peroxide stage mechanical pulp bleaching

Also Published As

Publication number Publication date
EP0464110B1 (de) 1994-06-08
CA1340348C (en) 1999-01-26
WO1990011403A1 (en) 1990-10-04
ATE106961T1 (de) 1994-06-15
EP0464110A1 (de) 1992-01-08

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Legal Events

Date Code Title Description
8332 No legal effect for de