FI20020123A0 - Menetelmõ mekaanisesti kuidutetun massan valkaisemiseksi - Google Patents

Menetelmõ mekaanisesti kuidutetun massan valkaisemiseksi

Info

Publication number
FI20020123A0
FI20020123A0 FI20020123A FI20020123A FI20020123A0 FI 20020123 A0 FI20020123 A0 FI 20020123A0 FI 20020123 A FI20020123 A FI 20020123A FI 20020123 A FI20020123 A FI 20020123A FI 20020123 A0 FI20020123 A0 FI 20020123A0
Authority
FI
Finland
Prior art keywords
defibrated pulp
mechanically defibrated
bleaching
bleaching mechanically
pulp
Prior art date
Application number
FI20020123A
Other languages
English (en)
Swedish (sv)
Other versions
FI20020123A (fi
FI115227B (fi
Inventor
Timo Tanner
Original Assignee
Rinheat 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
Application filed by Rinheat Oy filed Critical Rinheat Oy
Priority to FI20020123A priority Critical patent/FI115227B/fi
Publication of FI20020123A0 publication Critical patent/FI20020123A0/fi
Priority to PCT/FI2003/000051 priority patent/WO2003062526A1/en
Priority to US10/500,738 priority patent/US20060124257A9/en
Publication of FI20020123A publication Critical patent/FI20020123A/fi
Application granted granted Critical
Publication of FI115227B publication Critical patent/FI115227B/fi

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
FI20020123A 2002-01-23 2002-01-23 Menetelmä mekaanisesti kuidutetun massan valkaisemiseksi FI115227B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20020123A FI115227B (fi) 2002-01-23 2002-01-23 Menetelmä mekaanisesti kuidutetun massan valkaisemiseksi
PCT/FI2003/000051 WO2003062526A1 (en) 2002-01-23 2003-01-22 Method for bleaching mechanically defibered pulp
US10/500,738 US20060124257A9 (en) 2002-01-23 2003-01-22 Method for bleaching mechanically defibered pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20020123 2002-01-23
FI20020123A FI115227B (fi) 2002-01-23 2002-01-23 Menetelmä mekaanisesti kuidutetun massan valkaisemiseksi

Publications (3)

Publication Number Publication Date
FI20020123A0 true FI20020123A0 (fi) 2002-01-23
FI20020123A FI20020123A (fi) 2003-07-24
FI115227B FI115227B (fi) 2005-03-31

Family

ID=8562883

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20020123A FI115227B (fi) 2002-01-23 2002-01-23 Menetelmä mekaanisesti kuidutetun massan valkaisemiseksi

Country Status (3)

Country Link
US (1) US20060124257A9 (fi)
FI (1) FI115227B (fi)
WO (1) WO2003062526A1 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI120548B (fi) 2004-01-14 2009-11-30 Rinheat Oy Menetelmä alkaliyhdisteitä sisältävän orgaanisen jätekonsentraatin polttamiseksi hapettavissa olosuhteissa
DE102005029500A1 (de) 2005-06-24 2006-12-28 Upm-Kymmene Papier Gmbh & Co. Kg Verwendung von Asche als alternatives Alkalisierungsmittel

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601110A (en) * 1945-06-14 1952-06-17 Ontario Paper Co Ltd Pulping lignocellulose with sodium aluminate
US3396076A (en) * 1964-12-10 1968-08-06 Parkinson Crosby & Works Inc Method of recovery of chemical values of a kraft pulping process of cellulosic material
JPS4943481B1 (fi) * 1971-06-14 1974-11-21
US3787283A (en) * 1972-03-28 1974-01-22 Sonoco Products Co Treatment of waste liquor from pulp production
FI53141C (fi) * 1975-09-02 1978-02-10 Keskuslaboratorio
US4427490A (en) * 1978-04-07 1984-01-24 International Paper Company Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives
US4260452A (en) * 1978-11-24 1981-04-07 Krueger Horst Production of paper pulp from sugar mill bagasse
JPS5658086A (en) * 1979-10-17 1981-05-20 Kogyo Gijutsuin Multistage bleaching method of pulps
FI60041C (fi) * 1980-05-21 1981-11-10 Ahlstroem Oy Foerfarande foer tillverkning av alkalisk sulfitmassa
SU988939A1 (ru) * 1981-04-10 1983-01-15 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Способ получени волокнистого полуфабриката дл изготовлени бумаги и картона
US4388148A (en) * 1981-06-23 1983-06-14 Nalco Chemical Company Process for producing pulp
US5246542A (en) * 1991-09-18 1993-09-21 Fosberg Theodore M Evaporation and recovery process for bleached chemical thermo-mechanical pulp (BCTMP) effluent
US5302246A (en) * 1992-07-30 1994-04-12 Kamyr, Inc. Method of managing liquid steams in a pulp mill
US6364999B1 (en) * 1995-12-27 2002-04-02 Weyerhaeuser Company Process for producing a wood pulp having reduced pitch content and process and reduced VOC-emissions
US7018509B2 (en) * 2002-08-31 2006-03-28 International Paper Co. Elimination of alum yellowing of aspen thermomechanical pulp through pulp washing

Also Published As

Publication number Publication date
FI20020123A (fi) 2003-07-24
US20060124257A9 (en) 2006-06-15
US20050098279A1 (en) 2005-05-12
WO2003062526A1 (en) 2003-07-31
FI115227B (fi) 2005-03-31

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