SE449380B - Flerstegs serieblekningsforfarande - Google Patents

Flerstegs serieblekningsforfarande

Info

Publication number
SE449380B
SE449380B SE8003216A SE8003216A SE449380B SE 449380 B SE449380 B SE 449380B SE 8003216 A SE8003216 A SE 8003216A SE 8003216 A SE8003216 A SE 8003216A SE 449380 B SE449380 B SE 449380B
Authority
SE
Sweden
Prior art keywords
chlorine dioxide
bleaching
pulp
steps
series
Prior art date
Application number
SE8003216A
Other languages
English (en)
Swedish (sv)
Other versions
SE8003216L (sv
Inventor
J A Histed
Original Assignee
Int Paper Canada
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 Int Paper Canada filed Critical Int Paper Canada
Publication of SE8003216L publication Critical patent/SE8003216L/
Publication of SE449380B publication Critical patent/SE449380B/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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE8003216A 1979-04-30 1980-04-28 Flerstegs serieblekningsforfarande SE449380B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/034,922 US4238281A (en) 1979-04-30 1979-04-30 Simplified bleaching process

Publications (2)

Publication Number Publication Date
SE8003216L SE8003216L (sv) 1980-10-31
SE449380B true SE449380B (sv) 1987-04-27

Family

ID=21879479

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8003216A SE449380B (sv) 1979-04-30 1980-04-28 Flerstegs serieblekningsforfarande

Country Status (5)

Country Link
US (1) US4238281A (fi)
JP (1) JPS55152891A (fi)
CA (1) CA1105205A (fi)
FI (1) FI75612C (fi)
SE (1) SE449380B (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001661A1 (en) * 1986-08-28 1988-03-10 James River-Norwalk, Inc. Pulp bleaching process
JPH01151991A (ja) * 1987-12-07 1989-06-14 Oji Paper Co Ltd 悪臭ドレーンの脱臭方法
US6036726A (en) * 1995-10-27 2000-03-14 Solutia Inc. Process for separating polyamide from colorant
US6083283A (en) * 1996-10-24 2000-07-04 Solutia Inc. Method for removing color from ionically dyeable polymeric materials
US6315863B1 (en) * 1998-06-18 2001-11-13 Weyerhaeuser Company Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate
SE518692C2 (sv) * 2001-03-20 2002-11-05 Metso Paper Inc Blekning av massa med klordioxid
US20080110584A1 (en) * 2006-11-15 2008-05-15 Caifang Yin Bleaching process with at least one extraction stage
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
US9057156B2 (en) 2010-12-22 2015-06-16 Skzo Nobel Chemicals International B.V. Process for improving chlorine dioxide bleaching of pulp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587064A (en) * 1949-03-09 1952-02-26 Int Paper Canada Method of bleaching wood pulp
USRE28884E (en) 1965-06-28 1976-06-29 Hooker Chemicals & Plastics Corporation Woodpulp bleaching process
GB1217833A (en) * 1967-01-16 1970-12-31 Electric Reduction Co Improved cellulosic pulp process
USRE28887E (en) 1968-12-26 1976-06-29 Hooker Chemicals & Plastics Corporation Sequential bleaching of kraft pulp with chlorine dioxide followed by chlorine
DE2219504C2 (de) * 1972-04-21 1974-10-03 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
CA973661A (en) * 1972-09-29 1975-09-02 Pulp And Paper Research Institute Of Canada Press alkaline extraction of cellulosic pulp
US4013506A (en) * 1974-07-22 1977-03-22 Canadian International Paper Company Method and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleaching
US4104114A (en) * 1977-05-05 1978-08-01 Erco Envirotech Ltd. Bleach plant operation

Also Published As

Publication number Publication date
FI75612C (fi) 1988-07-11
FI75612B (fi) 1988-03-31
JPS55152891A (en) 1980-11-28
US4238281A (en) 1980-12-09
FI801157A (fi) 1980-10-31
SE8003216L (sv) 1980-10-31
CA1105205A (en) 1981-07-21

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