DE3877403D1 - Verfahren zum bleichen von zellstoffen. - Google Patents

Verfahren zum bleichen von zellstoffen.

Info

Publication number
DE3877403D1
DE3877403D1 DE8888420102T DE3877403T DE3877403D1 DE 3877403 D1 DE3877403 D1 DE 3877403D1 DE 8888420102 T DE8888420102 T DE 8888420102T DE 3877403 T DE3877403 T DE 3877403T DE 3877403 D1 DE3877403 D1 DE 3877403D1
Authority
DE
Germany
Prior art keywords
bleaching
cellular materials
action
temperature
mechanical
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8888420102T
Other languages
English (en)
Other versions
DE3877403T2 (de
Inventor
Michel Devic
Jacques Kervennal
Jean-Pierre Schirmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkema France SA
Original Assignee
Elf Atochem 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 Elf Atochem SA filed Critical Elf Atochem SA
Publication of DE3877403D1 publication Critical patent/DE3877403D1/de
Application granted granted Critical
Publication of DE3877403T2 publication Critical patent/DE3877403T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE8888420102T 1987-04-02 1988-03-29 Verfahren zum bleichen von zellstoffen. Expired - Fee Related DE3877403T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8704844A FR2613388B1 (fr) 1987-04-02 1987-04-02 Procede de blanchiment de pates

Publications (2)

Publication Number Publication Date
DE3877403D1 true DE3877403D1 (de) 1993-02-25
DE3877403T2 DE3877403T2 (de) 1993-05-19

Family

ID=9349862

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198888420102T Pending DE285530T1 (de) 1987-04-02 1988-03-29 Verfahren zum bleichen von zellstoffen.
DE8888420102T Expired - Fee Related DE3877403T2 (de) 1987-04-02 1988-03-29 Verfahren zum bleichen von zellstoffen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE198888420102T Pending DE285530T1 (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) DE285530T1 (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
DE402335T1 (de) * 1989-06-06 1992-04-09 Eka Nobel Ab, Surte Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
SE467006B (sv) 1989-06-06 1992-05-11 Eka Nobel Ab Blekning av kemisk massa med peroxid varvid massan foerst behandlas med en komplexbildare
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
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
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
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
SE0950616L (sv) * 2003-10-02 2009-08-27 Andritz Inc Flerstegsframställning av mekanisk massa med AP genom blåslinjebehandling med raffinör
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
JPH0156197B2 (de) 1989-11-29
FI93749C (fi) 1995-05-26
ES2004846A4 (es) 1989-02-16
NO881404D0 (no) 1988-03-29
CA1310797C (fr) 1992-12-01
FR2613388A1 (fr) 1988-10-07
JPS63256786A (ja) 1988-10-24
ES2004846T3 (es) 1993-06-16
AU1406788A (en) 1988-10-06
NO881404L (no) 1988-10-03
EP0285530B1 (de) 1993-01-13
AU606930B2 (en) 1991-02-21
FI881544A (fi) 1988-10-03
EP0285530A1 (de) 1988-10-05
FR2613388B1 (fr) 1990-05-04
NZ224144A (en) 1989-07-27
ATE84581T1 (de) 1993-01-15
DE285530T1 (de) 1989-03-30
NO173886C (no) 1994-02-16
NO173886B (no) 1993-11-08
FI881544A0 (fi) 1988-03-31
DE3877403T2 (de) 1993-05-19
FI93749B (fi) 1995-02-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee