SE8803707L - Foerfarande foer peroxidblekning av mekaniska massor - Google Patents

Foerfarande foer peroxidblekning av mekaniska massor

Info

Publication number
SE8803707L
SE8803707L SE8803707A SE8803707A SE8803707L SE 8803707 L SE8803707 L SE 8803707L SE 8803707 A SE8803707 A SE 8803707A SE 8803707 A SE8803707 A SE 8803707A SE 8803707 L SE8803707 L SE 8803707L
Authority
SE
Sweden
Prior art keywords
pulp
residual
peroxide
brightening
hydrogen peroxide
Prior art date
Application number
SE8803707A
Other languages
Unknown language ( )
English (en)
Other versions
SE8803707D0 (sv
Original Assignee
Mac Millan Bloedel Ltd
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 Mac Millan Bloedel Ltd filed Critical Mac Millan Bloedel Ltd
Publication of SE8803707D0 publication Critical patent/SE8803707D0/sv
Publication of SE8803707L publication Critical patent/SE8803707L/sv

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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
SE8803707A 1987-10-19 1988-10-18 Foerfarande foer peroxidblekning av mekaniska massor SE8803707L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/110,179 US4798652A (en) 1987-10-19 1987-10-19 Peroxide bleaching of mechanical pulps

Publications (2)

Publication Number Publication Date
SE8803707D0 SE8803707D0 (sv) 1988-10-18
SE8803707L true SE8803707L (sv) 1989-04-20

Family

ID=22331631

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8803707A SE8803707L (sv) 1987-10-19 1988-10-18 Foerfarande foer peroxidblekning av mekaniska massor

Country Status (3)

Country Link
US (1) US4798652A (sv)
FI (1) FI884807A (sv)
SE (1) SE8803707L (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842877A (en) * 1988-04-05 1989-06-27 Xylan, Inc. Delignification of non-woody biomass
US4946556A (en) * 1989-04-25 1990-08-07 Kamyr, Inc. Method of oxygen delignifying wood pulp with between stage washing
US5118389A (en) * 1990-07-06 1992-06-02 Ici Canada Inc. Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp
US5205907A (en) * 1991-11-25 1993-04-27 Macmillan Bloedel Limited Removal of manganese from pulp using a chelating agent and magnesium sulphate
US5223091A (en) * 1991-11-25 1993-06-29 Macmillan Bloedel Limited Method of brightening mechanical pulp using silicate-free peroxide bleaching
ES2118445T3 (es) * 1993-10-26 1998-09-16 Akzo Nobel Nv Acidos aminoalcano-difosfonicos en blanqueo de pasta papelera.
DE69620608T2 (de) * 1995-06-20 2002-10-31 Andritz Oy Helsinki Verfahren und vorrichtung zur behandlung eines schlecht wärmeableitenden materials
US7052578B2 (en) * 2000-01-28 2006-05-30 Martin Marietta Magnesia Specialties, Inc. Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
FI122238B (sv) * 2006-02-09 2011-10-31 Metso Automation Oy Förfarande och anordning för att bestämma massasuspensionens totalperoxidhalt

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA686115A (en) * 1964-05-12 J. Gard Andrew Bleaching of wood pulp
SE420329C (sv) * 1978-02-16 1984-07-10 Mo Och Domsjoe Ab Forfarande for framstellning av slipmassa vid overtryck

Also Published As

Publication number Publication date
FI884807A0 (fi) 1988-10-18
US4798652A (en) 1989-01-17
SE8803707D0 (sv) 1988-10-18
FI884807A (fi) 1989-04-20

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