FI972375A0 - Menetelmä paineistettua peroksidivalkaisua varten - Google Patents

Menetelmä paineistettua peroksidivalkaisua varten

Info

Publication number
FI972375A0
FI972375A0 FI972375A FI972375A FI972375A0 FI 972375 A0 FI972375 A0 FI 972375A0 FI 972375 A FI972375 A FI 972375A FI 972375 A FI972375 A FI 972375A FI 972375 A0 FI972375 A0 FI 972375A0
Authority
FI
Finland
Prior art keywords
exceeding
pulp
vessel
bleaching
fed
Prior art date
Application number
FI972375A
Other languages
English (en)
Swedish (sv)
Other versions
FI115226B (fi
FI972375A (fi
Inventor
Torbjoern Carlsson
Lennart Gustavsson
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
Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Publication of FI972375A0 publication Critical patent/FI972375A0/fi
Publication of FI972375A publication Critical patent/FI972375A/fi
Application granted granted Critical
Publication of FI115226B publication Critical patent/FI115226B/fi

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
FI972375A 1994-12-08 1997-06-05 Menetelmä paineistettua peroksidivalkaisua varten FI115226B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9404299 1994-12-08
SE9404299A SE506809C2 (sv) 1994-12-08 1994-12-08 Metod för att säkert bedriva trycksatt peroxidblekning
SE9501462 1995-12-06
PCT/SE1995/001462 WO1996017997A1 (en) 1994-12-08 1995-12-06 Method for pressurized peroxide bleaching

Publications (3)

Publication Number Publication Date
FI972375A0 true FI972375A0 (fi) 1997-06-05
FI972375A FI972375A (fi) 1997-06-05
FI115226B FI115226B (fi) 2005-03-31

Family

ID=20396285

Family Applications (1)

Application Number Title Priority Date Filing Date
FI972375A FI115226B (fi) 1994-12-08 1997-06-05 Menetelmä paineistettua peroksidivalkaisua varten

Country Status (12)

Country Link
US (1) US5858170A (fi)
EP (1) EP0796369B1 (fi)
JP (1) JPH10510331A (fi)
CN (1) CN1070961C (fi)
AT (1) ATE201066T1 (fi)
AU (1) AU4276196A (fi)
BR (1) BR9509894A (fi)
CA (1) CA2205912A1 (fi)
DE (1) DE69520889T2 (fi)
FI (1) FI115226B (fi)
SE (1) SE506809C2 (fi)
WO (1) WO1996017997A1 (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5954066A (en) * 1995-01-25 1999-09-21 Kvaerner Pulping Ab Method for controlling chemical reaction
US6096170A (en) * 1997-04-30 2000-08-01 Kvaerner Pulping Aktiebolag Pressurized peroxide bleaching vessel having a rotatable scraper arm and cleaning device
US6059927A (en) * 1997-09-23 2000-05-09 Queen's University At Kingston Method of reducing brightness reversion and yellowness (B*) of bleached mechanical wood pulps
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
CN101848920A (zh) * 2007-10-17 2010-09-29 新日铁化学株式会社 可溶化木质素、糖类原料和单糖类原料的制法及可溶化木质素

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822179A (en) * 1969-02-27 1974-07-02 N Chari Method and apparatus for optimizing steam consumption of continuous digester
US3607117A (en) * 1969-07-28 1971-09-21 Rust Engineering Co Black liquor recovery boiler combustion and safety control system
US3622441A (en) * 1969-10-07 1971-11-23 Improved Machinery Inc Multiple discharge stock treatment apparatus and method
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
US4177105A (en) * 1973-05-22 1979-12-04 Kamyr, Incorporated Apparatus for delignifying and bleaching cellulose pulp
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp
US4353384A (en) * 1978-12-29 1982-10-12 El Paso Polyolefins Company High pressure tubular reactor apparatus
US4496099A (en) * 1984-03-05 1985-01-29 Garland Bull Low pressure heating system
US4748004A (en) * 1986-02-13 1988-05-31 Goodspeed Byron Lester Apparatus for cleaning air ports of a chemical recovery furnace
US4967840A (en) * 1990-01-18 1990-11-06 Resource Production Management, Inc. Process and apparatus for forming a gaseous stream for introduction into hydrocarbon bearing formations and gas generator therefor
US5364505A (en) * 1992-12-07 1994-11-15 Kamyr, Inc. Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck

Also Published As

Publication number Publication date
CA2205912A1 (en) 1996-06-13
FI115226B (fi) 2005-03-31
AU4276196A (en) 1996-06-26
DE69520889T2 (de) 2001-11-29
DE69520889D1 (de) 2001-06-13
JPH10510331A (ja) 1998-10-06
SE506809C2 (sv) 1998-02-16
EP0796369A2 (en) 1997-09-24
ATE201066T1 (de) 2001-05-15
SE9404299L (sv) 1996-06-09
EP0796369B1 (en) 2001-05-09
FI972375A (fi) 1997-06-05
US5858170A (en) 1999-01-12
BR9509894A (pt) 1997-12-30
SE9404299D0 (sv) 1994-12-08
WO1996017997A1 (en) 1996-06-13
CN1169170A (zh) 1997-12-31
CN1070961C (zh) 2001-09-12

Similar Documents

Publication Publication Date Title
SE0802039L (sv) Matning av finfördelat fibermaterial
BR9712891A (pt) tágio único com ácido fórmico e lavagem com ácido perfórmico.
EP0333398B2 (en) Process for bleaching mechanical wood pulp
FI972375A0 (fi) Menetelmä paineistettua peroksidivalkaisua varten
CZ282874B6 (cs) Způsob bělení papíroviny
US6080275A (en) Oxygen delignification of medium consistency pulp slurry
SE9700992L (sv) Förfarande för blekning av kraftmassa
SE9503301D0 (sv) Metod vid trycksatt peroxidblekning
CA2074715A1 (en) Process for bleaching of ligno-cellulosic material
SE9501094L (sv) Sätt vid och utrustning för behandling av en fibermassasuspension
FI111387B (fi) Menetelmä massan klooritonta valkaisua varten etikkahapolla hapotusaineena
EP0770158B1 (en) Method for bleaching wood pulp using hydrogen peroxide
CA2374353A1 (en) System for the oxygen delignification of pulp consisting of lignocellulose-containing material
SE9600773D0 (sv) Medium consistency ozone brightening of high consistency ozone bleached pulp
NO179417B (no) Bleking av kjemisk masse
AU642971B2 (en) Bleaching of paper pulp
SE0101828D0 (sv) Method and apparatus for treating pulp

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 115226

Country of ref document: FI