FR2416297B1 - - Google Patents

Info

Publication number
FR2416297B1
FR2416297B1 FR7802694A FR7802694A FR2416297B1 FR 2416297 B1 FR2416297 B1 FR 2416297B1 FR 7802694 A FR7802694 A FR 7802694A FR 7802694 A FR7802694 A FR 7802694A FR 2416297 B1 FR2416297 B1 FR 2416297B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7802694A
Other languages
French (fr)
Other versions
FR2416297A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Groupement Europeen de la Cellulose
Original Assignee
Groupement Europeen de la Cellulose
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 Groupement Europeen de la Cellulose filed Critical Groupement Europeen de la Cellulose
Priority to FR7802694A priority Critical patent/FR2416297A1/fr
Priority to DE19792903014 priority patent/DE2903014A1/de
Priority to BE0/193124A priority patent/BE873765A/xx
Priority to BR7900561A priority patent/BR7900561A/pt
Priority to SE7900793A priority patent/SE7900793L/
Priority to JP884579A priority patent/JPS54116404A/ja
Priority to ZA79388A priority patent/ZA79388B/xx
Priority to OA56722A priority patent/OA06169A/xx
Priority to FI790318A priority patent/FI790318A/fi
Publication of FR2416297A1 publication Critical patent/FR2416297A1/fr
Application granted granted Critical
Publication of FR2416297B1 publication Critical patent/FR2416297B1/fr
Granted legal-status Critical Current

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
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR7802694A 1978-01-31 1978-01-31 Procede anti-polluant de blanchiment de pate a papier Granted FR2416297A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7802694A FR2416297A1 (fr) 1978-01-31 1978-01-31 Procede anti-polluant de blanchiment de pate a papier
DE19792903014 DE2903014A1 (de) 1978-01-31 1979-01-26 Anti-schadstoff-bleichverfahren fuer papierzellstoff
BE0/193124A BE873765A (fr) 1978-01-31 1979-01-29 Procede antipolluant de blanchissement de pate a papier
SE7900793A SE7900793L (sv) 1978-01-31 1979-01-30 Sett att bleka pappersmassa
BR7900561A BR7900561A (pt) 1978-01-31 1979-01-30 Processo anti-poluinte de alvejamento para pasta de papel
JP884579A JPS54116404A (en) 1978-01-31 1979-01-30 Process for bleaching wood pulp without generating public nuisance
ZA79388A ZA79388B (en) 1978-01-31 1979-01-30 An anti-pollution process for bleaching wood pulp
OA56722A OA06169A (fr) 1978-01-31 1979-01-30 Procédé anti-polluant de blanchiment de la pâte à papier.
FI790318A FI790318A (fi) 1978-01-31 1979-01-31 Blekningsfoerfarande foer pappersmassa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7802694A FR2416297A1 (fr) 1978-01-31 1978-01-31 Procede anti-polluant de blanchiment de pate a papier

Publications (2)

Publication Number Publication Date
FR2416297A1 FR2416297A1 (fr) 1979-08-31
FR2416297B1 true FR2416297B1 (ro) 1983-01-07

Family

ID=9204036

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802694A Granted FR2416297A1 (fr) 1978-01-31 1978-01-31 Procede anti-polluant de blanchiment de pate a papier

Country Status (9)

Country Link
JP (1) JPS54116404A (ro)
BE (1) BE873765A (ro)
BR (1) BR7900561A (ro)
DE (1) DE2903014A1 (ro)
FI (1) FI790318A (ro)
FR (1) FR2416297A1 (ro)
OA (1) OA06169A (ro)
SE (1) SE7900793L (ro)
ZA (1) ZA79388B (ro)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5011572A (en) * 1989-05-19 1991-04-30 Fmc Corporation Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage
SE9000340L (sv) * 1990-01-31 1991-08-01 Eka Nobel Ab Foerfarande vid blekning av lignocellulosahaltigt material
CA2044100A1 (en) * 1991-06-07 1992-12-08 Janice Hamilton Biobleaching process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100496A (en) * 1936-02-18 1937-11-30 Mathieson Alkali Works Inc Bleaching of cellulosic materials
US2120678A (en) * 1936-03-30 1938-06-14 Hammermill Paper Co Bleaching and purifying process
US2494542A (en) * 1946-05-02 1950-01-17 Niagara Alkali Company Method of bleaching pulp
CA897361A (en) * 1969-12-19 1972-04-11 E. Mallett Samuel Oxygen bleaching process
DE2538673C2 (de) * 1975-08-30 1986-01-16 Degussa Ag, 6000 Frankfurt Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz

Also Published As

Publication number Publication date
BR7900561A (pt) 1979-08-28
FI790318A (fi) 1979-08-01
FR2416297A1 (fr) 1979-08-31
OA06169A (fr) 1981-06-30
BE873765A (fr) 1979-07-30
SE7900793L (sv) 1979-08-01
ZA79388B (en) 1980-02-27
DE2903014A1 (de) 1979-08-02
JPS54116404A (en) 1979-09-10

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Legal Events

Date Code Title Description
ST Notification of lapse