DE2903014A1 - Anti-schadstoff-bleichverfahren fuer papierzellstoff - Google Patents

Anti-schadstoff-bleichverfahren fuer papierzellstoff

Info

Publication number
DE2903014A1
DE2903014A1 DE19792903014 DE2903014A DE2903014A1 DE 2903014 A1 DE2903014 A1 DE 2903014A1 DE 19792903014 DE19792903014 DE 19792903014 DE 2903014 A DE2903014 A DE 2903014A DE 2903014 A1 DE2903014 A1 DE 2903014A1
Authority
DE
Germany
Prior art keywords
chlorine
phase
bleaching
paper pulp
pulp
Prior art date
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.)
Withdrawn
Application number
DE19792903014
Other languages
German (de)
English (en)
Inventor
Jacques Carles
Michel Durand
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
Publication of DE2903014A1 publication Critical patent/DE2903014A1/de
Withdrawn legal-status Critical Current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)
DE19792903014 1978-01-31 1979-01-26 Anti-schadstoff-bleichverfahren fuer papierzellstoff Withdrawn DE2903014A1 (de)

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 (1)

Publication Number Publication Date
DE2903014A1 true DE2903014A1 (de) 1979-08-02

Family

ID=9204036

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792903014 Withdrawn DE2903014A1 (de) 1978-01-31 1979-01-26 Anti-schadstoff-bleichverfahren fuer papierzellstoff

Country Status (9)

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

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 (fr) * 1991-06-07 1992-12-08 Janice Hamilton Procede de bioblanchiment

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
FR2416297A1 (fr) 1979-08-31
BE873765A (fr) 1979-07-30
OA06169A (fr) 1981-06-30
SE7900793L (sv) 1979-08-01
BR7900561A (pt) 1979-08-28
ZA79388B (en) 1980-02-27
FI790318A (fi) 1979-08-01
JPS54116404A (en) 1979-09-10
FR2416297B1 (fr) 1983-01-07

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Legal Events

Date Code Title Description
8130 Withdrawal