ATE84581T1 - Verfahren zum bleichen von zellstoffen. - Google Patents

Verfahren zum bleichen von zellstoffen.

Info

Publication number
ATE84581T1
ATE84581T1 AT88420102T AT88420102T ATE84581T1 AT E84581 T1 ATE84581 T1 AT E84581T1 AT 88420102 T AT88420102 T AT 88420102T AT 88420102 T AT88420102 T AT 88420102T AT E84581 T1 ATE84581 T1 AT E84581T1
Authority
AT
Austria
Prior art keywords
bleaching pulp
action
bleaching
pulp
temperature
Prior art date
Application number
AT88420102T
Other languages
English (en)
Inventor
Michel Devic
Jacques Kervennal
Jean-Pierre Schirmann
Original Assignee
Atochem Elf Sa
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 Atochem Elf Sa filed Critical Atochem Elf Sa
Application granted granted Critical
Publication of ATE84581T1 publication Critical patent/ATE84581T1/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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Dental Preparations (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Seasonings (AREA)
  • Noodles (AREA)
AT88420102T 1987-04-02 1988-03-29 Verfahren zum bleichen von zellstoffen. ATE84581T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8704844A FR2613388B1 (fr) 1987-04-02 1987-04-02 Procede de blanchiment de pates
EP88420102A EP0285530B1 (de) 1987-04-02 1988-03-29 Verfahren zum Bleichen von Zellstoffen

Publications (1)

Publication Number Publication Date
ATE84581T1 true ATE84581T1 (de) 1993-01-15

Family

ID=9349862

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88420102T ATE84581T1 (de) 1987-04-02 1988-03-29 Verfahren zum bleichen von zellstoffen.

Country Status (11)

Country Link
EP (1) EP0285530B1 (de)
JP (1) JPS63256786A (de)
AT (1) ATE84581T1 (de)
AU (1) AU606930B2 (de)
CA (1) CA1310797C (de)
DE (2) DE3877403T2 (de)
ES (1) ES2004846T3 (de)
FI (1) FI93749C (de)
FR (1) FR2613388B1 (de)
NO (1) NO173886C (de)
NZ (1) NZ224144A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647641B1 (fr) * 1989-06-05 1992-01-17 Atochem Procede de fabrication de pulpes vegetales blanchies
SE467006B (sv) 1989-06-06 1992-05-11 Eka Nobel Ab Blekning av kemisk massa med peroxid varvid massan foerst behandlas med en komplexbildare
DE402335T1 (de) * 1989-06-06 1992-04-09 Eka Nobel Ab, Surte, Se Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
FR2661430B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement.
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
ZA955290B (en) * 1994-07-11 1996-12-27 Ingersoll Rand Co Peroxide bleaching process for cellulosic and lignocellulosic material
JP4580343B2 (ja) * 2003-10-02 2010-11-10 アンドリッツ インコーポレーテッド リファイナーブローライン処理を伴うアルカリ過酸化物を用いた多段階メカニカルパルプ化方法
US8298373B2 (en) 2008-02-07 2012-10-30 University Of New Brunswick Combined process of peroxide bleaching of wood pulps and addition of optical brightening agents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL202075A (de) * 1954-11-19 Fmc Corp
US3251731A (en) * 1963-02-11 1966-05-17 Andrew J Gard Bleaching of wood pulp with a sequestering agent and hydrogen peroxide
JPS5344563A (en) * 1976-10-05 1978-04-21 Ouchi Shinkou Kagaku Kougiyou Preparation of benzothiazolylsulfenamide
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
FI881544A0 (fi) 1988-03-31
NO881404L (no) 1988-10-03
ES2004846A4 (es) 1989-02-16
AU1406788A (en) 1988-10-06
NO173886B (no) 1993-11-08
NO881404D0 (no) 1988-03-29
DE285530T1 (de) 1989-03-30
FI93749B (fi) 1995-02-15
FR2613388B1 (fr) 1990-05-04
NO173886C (no) 1994-02-16
DE3877403T2 (de) 1993-05-19
JPH0156197B2 (de) 1989-11-29
EP0285530B1 (de) 1993-01-13
JPS63256786A (ja) 1988-10-24
FR2613388A1 (fr) 1988-10-07
NZ224144A (en) 1989-07-27
AU606930B2 (en) 1991-02-21
FI93749C (fi) 1995-05-26
CA1310797C (fr) 1992-12-01
EP0285530A1 (de) 1988-10-05
FI881544A (fi) 1988-10-03
ES2004846T3 (es) 1993-06-16
DE3877403D1 (de) 1993-02-25

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