AT378016B - METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD - Google Patents

METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD

Info

Publication number
AT378016B
AT378016B AT437582A AT437582A AT378016B AT 378016 B AT378016 B AT 378016B AT 437582 A AT437582 A AT 437582A AT 437582 A AT437582 A AT 437582A AT 378016 B AT378016 B AT 378016B
Authority
AT
Austria
Prior art keywords
carrying
cellulose material
particular cellular
bleaching cellulose
bleaching
Prior art date
Application number
AT437582A
Other languages
German (de)
Other versions
ATA437582A (en
Inventor
Walter Dipl Ing Kanzler
Johannes Dipl Ing Schedler
Original Assignee
Ver Edelstahlwerke Ag
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 Ver Edelstahlwerke Ag filed Critical Ver Edelstahlwerke Ag
Priority to AT437582A priority Critical patent/AT378016B/en
Publication of ATA437582A publication Critical patent/ATA437582A/en
Application granted granted Critical
Publication of AT378016B publication Critical patent/AT378016B/en

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
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
AT437582A 1982-12-02 1982-12-02 METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD AT378016B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT437582A AT378016B (en) 1982-12-02 1982-12-02 METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT437582A AT378016B (en) 1982-12-02 1982-12-02 METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD

Publications (2)

Publication Number Publication Date
ATA437582A ATA437582A (en) 1984-10-15
AT378016B true AT378016B (en) 1985-06-10

Family

ID=3563169

Family Applications (1)

Application Number Title Priority Date Filing Date
AT437582A AT378016B (en) 1982-12-02 1982-12-02 METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD

Country Status (1)

Country Link
AT (1) AT378016B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114134A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignifying of alkali cellulose - by bleaching with aq. peracid, extracting with alkaline soln.,bleaching with aq. peracid and bleaching twice with cyanamide-activated hydrogen peroxide soln.
DE4114135A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignification of alkali cellulose - by first treating with aq. organic peracid soln. and then with cyanamide (salt) activated hydrogen peroxide soln.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124325B2 (en) * 1970-05-25 1979-09-27 International Paper Co., New York, N.Y. (V.St.A.) Process for bleaching chemical wood pulp
US4222819A (en) * 1978-02-17 1980-09-16 Mo Och Domsjo Aktiebolag Process for the acid bleaching of cellulose pulp with peroxides
DE3005947B1 (en) * 1980-02-16 1981-01-29 Degussa Process for bleaching pulp using organic peracid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124325B2 (en) * 1970-05-25 1979-09-27 International Paper Co., New York, N.Y. (V.St.A.) Process for bleaching chemical wood pulp
US4222819A (en) * 1978-02-17 1980-09-16 Mo Och Domsjo Aktiebolag Process for the acid bleaching of cellulose pulp with peroxides
DE3005947B1 (en) * 1980-02-16 1981-01-29 Degussa Process for bleaching pulp using organic peracid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114134A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignifying of alkali cellulose - by bleaching with aq. peracid, extracting with alkaline soln.,bleaching with aq. peracid and bleaching twice with cyanamide-activated hydrogen peroxide soln.
DE4114135A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignification of alkali cellulose - by first treating with aq. organic peracid soln. and then with cyanamide (salt) activated hydrogen peroxide soln.

Also Published As

Publication number Publication date
ATA437582A (en) 1984-10-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee