ATA167682A - METHOD FOR BLEACHING CHEMICALLY PRODUCED CELLULAR - Google Patents

METHOD FOR BLEACHING CHEMICALLY PRODUCED CELLULAR

Info

Publication number
ATA167682A
ATA167682A AT0167682A AT167682A ATA167682A AT A167682 A ATA167682 A AT A167682A AT 0167682 A AT0167682 A AT 0167682A AT 167682 A AT167682 A AT 167682A AT A167682 A ATA167682 A AT A167682A
Authority
AT
Austria
Prior art keywords
chemically produced
produced cellular
bleaching
bleaching chemically
cellular
Prior art date
Application number
AT0167682A
Other languages
German (de)
Inventor
Rudolf Dr Patt
David Long-Kuo Dipl Holzw Wang
Othar Dipl Holzwirt Kordsachia
Original Assignee
Mannesmann 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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of ATA167682A publication Critical patent/ATA167682A/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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
    • 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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AT0167682A 1981-05-09 1982-04-29 METHOD FOR BLEACHING CHEMICALLY PRODUCED CELLULAR ATA167682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3118384A DE3118384C1 (en) 1981-05-09 1981-05-09 Process for bleaching chemically produced pulp with ozone

Publications (1)

Publication Number Publication Date
ATA167682A true ATA167682A (en) 1985-04-15

Family

ID=6131844

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0167682A ATA167682A (en) 1981-05-09 1982-04-29 METHOD FOR BLEACHING CHEMICALLY PRODUCED CELLULAR

Country Status (9)

Country Link
JP (1) JPS57191388A (en)
AT (1) ATA167682A (en)
BR (1) BR8202532A (en)
DE (1) DE3118384C1 (en)
FI (1) FI821265A0 (en)
FR (1) FR2505377A1 (en)
NO (1) NO821525L (en)
SE (1) SE8202603L (en)
ZA (1) ZA823048B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404740B (en) * 1989-10-30 1999-02-25 Chemiefaser Lenzing Ag Process for the chlorine-free bleaching of pulps
DE4107356C1 (en) * 1991-03-08 1992-11-05 Acetocell Gmbh & Co Kg, 7162 Gschwend, De
US5364503A (en) * 1992-02-20 1994-11-15 Macmillan Bloedel Limited Nitric oxide treatment for ozone bleaching

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR432552A (en) * 1911-07-25 1911-12-09 Claude Achilles Meygret Improvements in the bleaching of vegetable fibers, vegetable pulps and their equivalents
FR2158873A5 (en) * 1972-10-09 1973-06-15 Bourit Jean Pierre Bleaching of wood cellulose - using nitrogen oxides
GB1505070A (en) * 1974-06-11 1978-03-22 Canadian Ind Process for bleaching of lignocellulosic material
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification
GB1590704A (en) * 1976-11-23 1981-06-10 Defibrator Ab Method end device for the continuous production of pulp from fibrous lignocellulosic materials

Also Published As

Publication number Publication date
FR2505377A1 (en) 1982-11-12
JPS57191388A (en) 1982-11-25
DE3118384C1 (en) 1982-11-11
NO821525L (en) 1982-11-10
BR8202532A (en) 1983-04-19
FI821265A0 (en) 1982-04-08
SE8202603L (en) 1982-11-10
ZA823048B (en) 1983-03-30

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties