ATE131886T1 - Verfahren zum bleichen von zellstoffen in aliphatischen monocarbonsäuren - Google Patents

Verfahren zum bleichen von zellstoffen in aliphatischen monocarbonsäuren

Info

Publication number
ATE131886T1
ATE131886T1 AT92102469T AT92102469T ATE131886T1 AT E131886 T1 ATE131886 T1 AT E131886T1 AT 92102469 T AT92102469 T AT 92102469T AT 92102469 T AT92102469 T AT 92102469T AT E131886 T1 ATE131886 T1 AT E131886T1
Authority
AT
Austria
Prior art keywords
pulp
bleaching pulp
stage
bleaching
aliphatic
Prior art date
Application number
AT92102469T
Other languages
English (en)
Inventor
Alex Dr Dipl-Chem-Ing Berg
Wim Dipl-Ing Janssen
Stefan Dipl-Ing Agr Balle
Rudolf Gustav Dr Dipl-Hol Kunz
Wolf-Dieter Dipl-Ing 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
Application granted granted Critical
Publication of ATE131886T1 publication Critical patent/ATE131886T1/de

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
    • 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
    • D21C9/1005—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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • External Artificial Organs (AREA)
AT92102469T 1991-03-08 1992-02-14 Verfahren zum bleichen von zellstoffen in aliphatischen monocarbonsäuren ATE131886T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4107356A DE4107356C1 (de) 1991-03-08 1991-03-08

Publications (1)

Publication Number Publication Date
ATE131886T1 true ATE131886T1 (de) 1996-01-15

Family

ID=6426710

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92102469T ATE131886T1 (de) 1991-03-08 1992-02-14 Verfahren zum bleichen von zellstoffen in aliphatischen monocarbonsäuren

Country Status (6)

Country Link
EP (1) EP0503303B1 (de)
AT (1) ATE131886T1 (de)
CA (1) CA2062325A1 (de)
DE (2) DE4107356C1 (de)
FI (1) FI920832A (de)
NO (1) NO920829L (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2391011A (en) * 2002-07-19 2004-01-28 Crosmill Ltd Bleaching cellulose suspensions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183643A (en) * 1936-05-05 1939-12-19 Manufacture of cellulose
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
DE3118384C1 (de) * 1981-05-09 1982-11-11 Mannesmann AG, 4000 Düsseldorf Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon
DE3445132A1 (de) * 1984-12-11 1986-06-12 Nimz, Horst H., Prof.Dr., 2050 Hamburg Holzaufschluss mit essigsaeure
EP0325891A1 (de) * 1988-01-25 1989-08-02 Kunz Holding Gmbh & Co. Kg Verfahren zur Gewinnung von gebleichtem Zellstoff

Also Published As

Publication number Publication date
EP0503303B1 (de) 1995-12-20
NO920829L (no) 1992-09-09
DE4107356C1 (de) 1992-11-05
CA2062325A1 (en) 1992-09-09
EP0503303A1 (de) 1992-09-16
DE59204715D1 (de) 1996-02-01
FI920832A0 (fi) 1992-02-25
NO920829D0 (no) 1992-03-03
FI920832A (fi) 1992-09-09

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Legal Events

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