FI933409A - Hoegeffektivt klordioxidmassablekningsfoerfarande - Google Patents

Hoegeffektivt klordioxidmassablekningsfoerfarande Download PDF

Info

Publication number
FI933409A
FI933409A FI933409A FI933409A FI933409A FI 933409 A FI933409 A FI 933409A FI 933409 A FI933409 A FI 933409A FI 933409 A FI933409 A FI 933409A FI 933409 A FI933409 A FI 933409A
Authority
FI
Finland
Prior art keywords
klordioxidmassablekningsfoerfarande
hoegeffektivt
hoegeffektivt klordioxidmassablekningsfoerfarande
Prior art date
Application number
FI933409A
Other languages
English (en)
Other versions
FI933409A0 (fi
Inventor
Hou-Min Chang
Hasan Jameel
Geoffrey E Seger
Original Assignee
Univ North Carolina State
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=24606473&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI933409(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Univ North Carolina State filed Critical Univ North Carolina State
Publication of FI933409A publication Critical patent/FI933409A/fi
Publication of FI933409A0 publication Critical patent/FI933409A0/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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI933409A 1991-02-01 1993-07-30 Hoegeffektivt klordioxidmassablekningsfoerfarande FI933409A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/649,848 US5268075A (en) 1989-10-19 1991-02-01 High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
PCT/US1992/000769 WO1992013991A1 (en) 1991-02-01 1992-01-29 High efficiency chlorine dioxide pulp bleaching process

Publications (2)

Publication Number Publication Date
FI933409A true FI933409A (fi) 1993-07-30
FI933409A0 FI933409A0 (fi) 1993-07-30

Family

ID=24606473

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933409A FI933409A0 (fi) 1991-02-01 1993-07-30 Hoegeffektivt klordioxidmassablekningsfoerfarande

Country Status (11)

Country Link
US (1) US5268075A (fi)
EP (1) EP0576541B1 (fi)
JP (1) JPH06510335A (fi)
CN (1) CN1041541C (fi)
AU (1) AU1467892A (fi)
CA (1) CA2101752A1 (fi)
DE (1) DE69228872D1 (fi)
FI (1) FI933409A0 (fi)
PL (1) PL170541B3 (fi)
RU (1) RU2091530C1 (fi)
WO (1) WO1992013991A1 (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI119383B (fi) * 1998-03-06 2008-10-31 Andritz Oy Menetelmä massan käsittelemiseksi
CN1100177C (zh) * 2000-07-20 2003-01-29 华南理工大学 硫酸盐木浆高温二氧化氯漂白方法
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp
CA2665969C (en) * 2006-10-11 2016-04-12 Magnus Bjoerklund Bleaching of pulp
US8920603B2 (en) * 2006-10-11 2014-12-30 Akzo Nobel N.V. Bleaching of pulp
US9057156B2 (en) * 2010-12-22 2015-06-16 Skzo Nobel Chemicals International B.V. Process for improving chlorine dioxide bleaching of pulp
FR3062138B1 (fr) 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433702A (en) * 1965-06-28 1969-03-18 Hooker Chemical Corp Woodpulp bleaching process
US3884752A (en) * 1973-09-17 1975-05-20 Int Paper Co Single vessel wood pulp bleaching with chlorine dioxide followed by sodium hypochlorite or alkaline extraction
FR2432574A1 (fr) * 1978-08-01 1980-02-29 Europeen Cellulose Procede de blanchiment de pate a papier
SE442880B (sv) * 1980-11-27 1986-02-03 Mo Och Domsjoe Ab Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma steg
SE8106334L (sv) * 1981-10-27 1983-04-28 Sunds Defibrator Sett att behandla cellulosahaltigt material
EP0496782B1 (en) * 1989-10-19 1996-03-20 North Carolina State University High efficiency chlorine dioxide pulp bleaching process

Also Published As

Publication number Publication date
CN1041541C (zh) 1999-01-06
WO1992013991A1 (en) 1992-08-20
EP0576541A1 (en) 1994-01-05
PL170541B3 (pl) 1996-12-31
DE69228872D1 (de) 1999-05-12
EP0576541A4 (en) 1997-04-23
EP0576541B1 (en) 1999-04-07
CN1065109A (zh) 1992-10-07
US5268075A (en) 1993-12-07
AU1467892A (en) 1992-09-07
JPH06510335A (ja) 1994-11-17
RU2091530C1 (ru) 1997-09-27
FI933409A0 (fi) 1993-07-30
CA2101752A1 (en) 1992-08-20

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