ZA944334B - A method of integrating bleaching and recovery in the production of pulp - Google Patents

A method of integrating bleaching and recovery in the production of pulp

Info

Publication number
ZA944334B
ZA944334B ZA944334A ZA944334A ZA944334B ZA 944334 B ZA944334 B ZA 944334B ZA 944334 A ZA944334 A ZA 944334A ZA 944334 A ZA944334 A ZA 944334A ZA 944334 B ZA944334 B ZA 944334B
Authority
ZA
South Africa
Prior art keywords
bleaching
pulp
integrating
recovery
production
Prior art date
Application number
ZA944334A
Other languages
English (en)
Inventor
Stig Andtbacka
Anders Bergqvist
Lennart Hagelquist
Daniel Palsson
Gunnar Wernqvist
Original Assignee
Kvaerner Pulping Tech
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=20390718&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA944334(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Publication of ZA944334B publication Critical patent/ZA944334B/xx

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/10—Concentrating spent liquor by evaporation
    • 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
ZA944334A 1993-08-03 1994-06-17 A method of integrating bleaching and recovery in the production of pulp ZA944334B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302546A SE501613C2 (sv) 1993-08-03 1993-08-03 Sätt vid integrering av blekning och återvinning vid framställning av massa

Publications (1)

Publication Number Publication Date
ZA944334B true ZA944334B (en) 1995-02-09

Family

ID=20390718

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA944334A ZA944334B (en) 1993-08-03 1994-06-17 A method of integrating bleaching and recovery in the production of pulp

Country Status (8)

Country Link
US (1) US5540816A (sv)
AU (1) AU6692694A (sv)
BR (1) BR9407214A (sv)
CA (1) CA2167922C (sv)
FI (1) FI960475A0 (sv)
SE (1) SE501613C2 (sv)
WO (1) WO1995004188A1 (sv)
ZA (1) ZA944334B (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504424C2 (sv) * 1994-11-04 1997-02-10 Kvaerner Pulping Tech Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska
FR2747407B1 (fr) * 1996-04-12 1998-05-07 Atochem Elf Sa Procede de delignification et de blanchiment de pates a papier chimiques
US6153050A (en) * 1998-03-24 2000-11-28 Noranda Forest Inc. Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage
SE522436C2 (sv) 1998-05-26 2004-02-10 Andritz Oy Förfarande för förhindrande av nedsmutsning av värmeöverföringsytor i en flerstegsindunstningsanläggning för svartlut och blekeriutsläpp
FI990127A0 (sv) * 1999-01-22 1999-01-22 Ahlstrom Machinery Oy Förfarande för behandling av massa
FI112959B (sv) 1999-11-03 2004-02-13 Metso Paper Inc Förfarande för att ordna vattencirkulationen i en pappersfabrik
DE10323774A1 (de) * 2003-05-26 2004-12-16 Khd Humboldt Wedag Ag Verfahren und Anlage zur thermischen Trocknung eines nass vermahlenen Zementrohmehls
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE381897C (sv) * 1973-11-23 1977-05-12 Skogegarnas Ind Ab Sett for satsvis alkalisk massakokning i kombination med kontinuerlig syredelignifiering
SE435302B (sv) * 1974-10-08 1984-09-17 Mannbro Sys Hb Sett vid behandling av avlutar fran delignifiering av lignocellulosamaterial med kloridbildande blekmedel
ZA761255B (en) * 1975-03-11 1977-03-30 Erco Envirotech Ltd Bleachplant operation
SE417114B (sv) * 1977-07-25 1981-02-23 Mo Och Domsjoe Ab Forfarande for forebyggande av inkrustbildning i cellulosafabriker
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
CA1247809A (en) * 1984-03-21 1989-01-03 Robert J. Spannuth Spent pulping liquor recovery process
SE454895B (sv) * 1985-07-11 1988-06-06 Ahlstroem Foeretagen Sett och anordning for indunstning av avlut
FI81396C (sv) * 1988-10-25 1990-10-10 Enso Gutzeit Oy Förfarande för behandling av avfallsvatten från träförädlingsindustri ns massaframställningsprocesser
ES2038097T5 (es) * 1989-06-06 2001-05-01 Eka Chemicals Ab Procedimiento para blanquear pastas papeleras que contienen lignocelulosa.
DE69019350T2 (de) * 1990-05-17 1996-02-15 Union Camp Patent Holding Umweltfreundlicheres verfahren zum bleichen von lignocellulosischen materialien.
US5352332A (en) * 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
US5246542A (en) * 1991-09-18 1993-09-21 Fosberg Theodore M Evaporation and recovery process for bleached chemical thermo-mechanical pulp (BCTMP) effluent
SE469387B (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
US5374333A (en) * 1992-07-30 1994-12-20 Kamyr, Inc. Method for minimizing pulp mill effluents
US5380402A (en) * 1992-07-30 1995-01-10 Kamyr, Inc. Reducing pulp mill liquid discharge

Also Published As

Publication number Publication date
WO1995004188A1 (en) 1995-02-09
FI960475A (sv) 1996-02-02
CA2167922C (en) 2002-07-09
FI960475A0 (sv) 1996-02-02
SE9302546L (sv) 1995-02-04
BR9407214A (pt) 1996-09-17
SE9302546D0 (sv) 1993-08-03
AU6692694A (en) 1995-02-28
US5540816A (en) 1996-07-30
CA2167922A1 (en) 1995-02-09
SE501613C2 (sv) 1995-03-27

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