ATE210217T1 - Verfahren zur erhöhung des weissgrades von aus altpapier gewonnenem papierfaserstoff - Google Patents

Verfahren zur erhöhung des weissgrades von aus altpapier gewonnenem papierfaserstoff

Info

Publication number
ATE210217T1
ATE210217T1 AT97108991T AT97108991T ATE210217T1 AT E210217 T1 ATE210217 T1 AT E210217T1 AT 97108991 T AT97108991 T AT 97108991T AT 97108991 T AT97108991 T AT 97108991T AT E210217 T1 ATE210217 T1 AT E210217T1
Authority
AT
Austria
Prior art keywords
paper
whiteness
increasing
waste paper
fibrous obtained
Prior art date
Application number
AT97108991T
Other languages
English (en)
Inventor
Volker Dr Gehr
Original Assignee
Voith Sulzer Stoffaufbereitung
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 Voith Sulzer Stoffaufbereitung filed Critical Voith Sulzer Stoffaufbereitung
Application granted granted Critical
Publication of ATE210217T1 publication Critical patent/ATE210217T1/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
    • 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
    • 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AT97108991T 1996-06-29 1997-06-04 Verfahren zur erhöhung des weissgrades von aus altpapier gewonnenem papierfaserstoff ATE210217T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19626200A DE19626200C2 (de) 1996-06-29 1996-06-29 Verfahren zur Erhöhung des Weißgrades von Altpapierfaserstoff

Publications (1)

Publication Number Publication Date
ATE210217T1 true ATE210217T1 (de) 2001-12-15

Family

ID=7798439

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97108991T ATE210217T1 (de) 1996-06-29 1997-06-04 Verfahren zur erhöhung des weissgrades von aus altpapier gewonnenem papierfaserstoff

Country Status (4)

Country Link
EP (1) EP0816558B1 (de)
AT (1) ATE210217T1 (de)
CA (1) CA2208940A1 (de)
DE (1) DE19626200C2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751173A1 (de) * 1997-11-19 1999-05-27 Voith Sulzer Papiertech Patent Verfahren zur Erhöhung des Weißgrades von Papierfaserstoff

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA918978A (en) * 1970-01-08 1973-01-16 G. Jamieson Allan Oxygen bleaching
JPS5212801B2 (de) * 1973-02-07 1977-04-09
JPS517203A (en) * 1974-07-10 1976-01-21 Sadayoshi Watanabe Arukariekifurikakeo tokuchotosuru kapponkashokubutsuparupuno sansosankaseizoho
FR2566015B1 (fr) * 1984-06-15 1986-08-29 Centre Tech Ind Papier Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
JPH0364589A (ja) * 1989-07-28 1991-03-19 Mitsubishi Gas Chem Co Inc 化学パルプの漂白方法
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers
CA2082557C (en) * 1992-02-24 1997-03-11 Charles W. Hankins Integrated pulping process of waste paper yielding tissue-grade paper fibers

Also Published As

Publication number Publication date
EP0816558A1 (de) 1998-01-07
EP0816558B1 (de) 2001-12-05
DE19626200C2 (de) 2001-02-01
CA2208940A1 (en) 1997-12-29
DE19626200A1 (de) 1997-05-15

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Legal Events

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