NO920830D0 - PROCEDURE FOR DELIGNIFICATION OF CELLULOSE-SUBSTANCES - Google Patents

PROCEDURE FOR DELIGNIFICATION OF CELLULOSE-SUBSTANCES

Info

Publication number
NO920830D0
NO920830D0 NO920830A NO920830A NO920830D0 NO 920830 D0 NO920830 D0 NO 920830D0 NO 920830 A NO920830 A NO 920830A NO 920830 A NO920830 A NO 920830A NO 920830 D0 NO920830 D0 NO 920830D0
Authority
NO
Norway
Prior art keywords
delignification
cellulose
substances
procedure
Prior art date
Application number
NO920830A
Other languages
Norwegian (no)
Other versions
NO920830L (en
Inventor
Horst Nimz
Alex Berg
Rudolf Gustav Kunz
Wim Janssen
Stefan Balle
Wolfdieter Klein
Original Assignee
Acetocell Gmbh & Co Kg
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 Acetocell Gmbh & Co Kg filed Critical Acetocell Gmbh & Co Kg
Publication of NO920830D0 publication Critical patent/NO920830D0/en
Publication of NO920830L publication Critical patent/NO920830L/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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/003—Pulping cellulose-containing materials with organic 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
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
NO92920830A 1991-03-08 1992-03-03 PROCEDURE FOR DELIGNIFICATION OF CELLULOSE-SUBSTANCES NO920830L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914107357 DE4107357C1 (en) 1991-03-08 1991-03-08

Publications (2)

Publication Number Publication Date
NO920830D0 true NO920830D0 (en) 1992-03-03
NO920830L NO920830L (en) 1992-09-09

Family

ID=6426711

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92920830A NO920830L (en) 1991-03-08 1992-03-03 PROCEDURE FOR DELIGNIFICATION OF CELLULOSE-SUBSTANCES

Country Status (5)

Country Link
EP (1) EP0503304A1 (en)
CA (1) CA2062475A1 (en)
DE (1) DE4107357C1 (en)
FI (1) FI920831A (en)
NO (1) NO920830L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228171C2 (en) * 1992-08-25 1995-06-14 Kaemmerer Projekt Agentur Gmbh Process for the production of cellulose
US6302997B1 (en) * 1999-08-30 2001-10-16 North Carolina State University Process for producing a pulp suitable for papermaking from nonwood fibrous materials
DE19962411A1 (en) * 1999-12-22 2001-07-05 Natural Pulping Ag Recovering carboxylic acids from waste solutions in pulp production by adding an extraction agent to the waste solution

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE309551C (en) * 1916-01-14
AT83396B (en) * 1916-06-19 1921-03-25 Hermann Pauly Dr Process for the production of the so-called lignin-forming substances from cellulose-containing materials.
GB579669A (en) * 1943-11-05 1946-08-12 Stanley Charles Bate Improvements in or relating to the production of cellulose
US3553076A (en) * 1968-01-22 1971-01-05 Weyerhaeuser Co Non-catalytic process for the production of cellulose from lignocellulosic materials using acetic acid
DE3445132A1 (en) * 1984-12-11 1986-06-12 Nimz, Horst H., Prof.Dr., 2050 Hamburg Wood pulping with acetic acid
ATE90404T1 (en) * 1988-01-25 1993-06-15 Acetocell Gmbh & Co Kg PROCESS FOR TREATMENT OF LIGNIN-CONTAINING CELLULOSE MASS WITH OZONE.
EP0325891A1 (en) * 1988-01-25 1989-08-02 Kunz Holding Gmbh & Co. Kg Process for obtaining bleached cellulose pulp

Also Published As

Publication number Publication date
NO920830L (en) 1992-09-09
FI920831A (en) 1992-09-09
EP0503304A1 (en) 1992-09-16
FI920831A0 (en) 1992-02-25
DE4107357C1 (en) 1992-11-05
CA2062475A1 (en) 1992-09-09

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