CA1340348C - Bleaching process for the production of high bright pulps - Google Patents

Bleaching process for the production of high bright pulps

Info

Publication number
CA1340348C
CA1340348C CA000594763A CA594763A CA1340348C CA 1340348 C CA1340348 C CA 1340348C CA 000594763 A CA000594763 A CA 000594763A CA 594763 A CA594763 A CA 594763A CA 1340348 C CA1340348 C CA 1340348C
Authority
CA
Canada
Prior art keywords
pulp
bleaching
stage
sodium
peroxygen
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
CA000594763A
Other languages
English (en)
French (fr)
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.)
Voith Patent GmbH
Original Assignee
Kvaerner Canada 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 Canada Inc filed Critical Kvaerner Canada Inc
Priority to CA000594763A priority Critical patent/CA1340348C/en
Priority to DE69009750T priority patent/DE69009750D1/de
Priority to PCT/CA1990/000097 priority patent/WO1990011403A1/en
Priority to EP90905400A priority patent/EP0464110B1/de
Priority to AT90905400T priority patent/ATE106961T1/de
Application granted granted Critical
Publication of CA1340348C publication Critical patent/CA1340348C/en
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
    • 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)
CA000594763A 1989-03-23 1989-03-23 Bleaching process for the production of high bright pulps Expired - Fee Related CA1340348C (en)

Priority Applications (5)

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
DE69009750T DE69009750D1 (de) 1989-03-23 1990-03-22 Bleichverfahren zur herstellung von hochweissem zellstoff.
PCT/CA1990/000097 WO1990011403A1 (en) 1989-03-23 1990-03-22 Bleaching process for the production of high bright pulps
EP90905400A EP0464110B1 (de) 1989-03-23 1990-03-22 Bleichverfahren zur herstellung von hochweissem zellstoff
AT90905400T ATE106961T1 (de) 1989-03-23 1990-03-22 Bleichverfahren zur herstellung von hochweissem zellstoff.

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1340348C true CA1340348C (en) 1999-01-26

Family

ID=4139806

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000594763A Expired - Fee Related CA1340348C (en) 1989-03-23 1989-03-23 Bleaching process for the production of high bright pulps

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
WO1990011403A1 (en) 1990-10-04
ATE106961T1 (de) 1994-06-15
DE69009750D1 (de) 1994-07-14
EP0464110A1 (de) 1992-01-08

Similar Documents

Publication Publication Date Title
US5785812A (en) Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence
US4804440A (en) Multistage brightening of high yield and ultra high-yield wood pulps
US3865685A (en) Multiple step bleaching of cellulose with a per compound and chloride dioxide
CA1137257A (en) Ozone effluent bleaching
CA1340348C (en) Bleaching process for the production of high bright pulps
CN102704305A (zh) 漂白纸浆的制备方法以及一种纸
US3874992A (en) Press alkaline extraction of cellulosic pulp
NO178079B (no) Fremgangsmåte ved bleking av dissolving-masse
NO143298B (no) Friserapparat.
US6019870A (en) Process for the preparation of delignified and bleached chemical paper pulps
CA2869351C (en) A method for bleaching pulp
CA1221809A (en) Process for delignification of chemical wood pulp
AU2003216028B2 (en) Process for bleaching lignocellulose-containing non-wood pulp
NZ242356A (en) Process for preparing bleached paper pulp comprising: treating chips with a reducing agent, then alkaline hydrogen peroxide, followed by refining
CA2398312C (en) Bleaching process
US20080087390A1 (en) Multi-step pulp bleaching
US5139613A (en) Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pulp
CA1275759C (en) Method and apparatus for alkaline delignification of lignocellulosic fibrous material
FI75374B (fi) Hypokloritbehandling av kemiska pappersmassor.
CA1174013A (en) Method at mechanical cellulose pulp manufacture
US20120031575A1 (en) Pulp Bleaching and Alkaline Extraction Method
US3817825A (en) Bleaching and refining process for producing dissolving pulps
WO1988001661A1 (en) Pulp bleaching process
EP0960235B1 (de) Delignifizierung von zellstoff mit sauerstoff
US20090242152A1 (en) Bleaching process of chemical pulp

Legal Events

Date Code Title Description
MKLA Lapsed