FI98840B - Förfarande för framställning av högutbytesmassor - Google Patents

Förfarande för framställning av högutbytesmassor

Info

Publication number
FI98840B
FI98840B FI911118A FI911118A FI98840B FI 98840 B FI98840 B FI 98840B FI 911118 A FI911118 A FI 911118A FI 911118 A FI911118 A FI 911118A FI 98840 B FI98840 B FI 98840B
Authority
FI
Finland
Prior art keywords
aid
sulphite
production
washing
followed
Prior art date
Application number
FI911118A
Other languages
English (en)
Finnish (fi)
Other versions
FI911118A (sv
FI98840C (sv
FI911118A0 (sv
Inventor
Michel Devic
Original Assignee
Atochem
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9394633&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI98840(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem filed Critical Atochem
Publication of FI911118A0 publication Critical patent/FI911118A0/sv
Publication of FI911118A publication Critical patent/FI911118A/sv
Publication of FI98840B publication Critical patent/FI98840B/sv
Application granted granted Critical
Publication of FI98840C publication Critical patent/FI98840C/sv

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing 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
    • D21C9/16—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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Glass Compositions (AREA)
  • Noodles (AREA)
  • Detergent Compositions (AREA)
FI911118A 1990-03-07 1991-03-06 Förfarande för framställning av högutbytesmassor FI98840C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9003128 1990-03-07
FR9003128A FR2659363B1 (fr) 1990-03-07 1990-03-07 Procede de preparation de pates a haut rendement blanchies.

Publications (4)

Publication Number Publication Date
FI911118A0 FI911118A0 (sv) 1991-03-06
FI911118A FI911118A (sv) 1991-09-08
FI98840B true FI98840B (sv) 1997-05-15
FI98840C FI98840C (sv) 1997-08-25

Family

ID=9394633

Family Applications (1)

Application Number Title Priority Date Filing Date
FI911118A FI98840C (sv) 1990-03-07 1991-03-06 Förfarande för framställning av högutbytesmassor

Country Status (13)

Country Link
US (1) US5143581A (sv)
EP (1) EP0446110B1 (sv)
JP (1) JPH0660474B2 (sv)
AT (1) ATE125013T1 (sv)
AU (1) AU641478B2 (sv)
CA (1) CA2037678C (sv)
DE (1) DE69111098T2 (sv)
ES (1) ES2074670T3 (sv)
FI (1) FI98840C (sv)
FR (1) FR2659363B1 (sv)
NO (1) NO178899C (sv)
NZ (1) NZ237310A (sv)
PT (1) PT96951B (sv)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639371B1 (fr) * 1988-11-24 1995-04-14 Atochem Procede de blanchiment de pates desencrees
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
FR2675518B1 (fr) * 1991-04-17 1996-10-18 Atochem Procede de preparation de pate a papier a haut rendement et blanchie, a partir de copeaux de bois.
US6398908B1 (en) 1991-04-30 2002-06-04 Eka Nobel Ab Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
SE502667C2 (sv) * 1993-07-12 1995-12-04 Kvaerner Pulping Tech Behandling av fibermaterial med komplexbildare före kokning
AU1357097A (en) * 1996-02-27 1997-09-16 Tetra Laval Holdings & Finance Sa Process for sanitizing post-consumer paper fibers and product formed therefrom
DE10064131C2 (de) * 2000-12-22 2003-03-27 Sca Hygiene Prod Gmbh Vollgebleichter Sulfit-Zellstoff, Verfahren zu seiner Herstellung und daraus hergestellte Produkte
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
US11591751B2 (en) 2019-09-17 2023-02-28 Gpcp Ip Holdings Llc High efficiency fiber bleaching process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604197B1 (fr) * 1986-09-23 1988-11-18 Atochem Procede de blanchiment de matieres lignocellulosiques.
FR2613388B1 (fr) * 1987-04-02 1990-05-04 Atochem Procede de blanchiment de pates
FR2615874B1 (fr) * 1987-05-25 1992-02-21 Atochem Procede de preparation de pates chimicothermomecaniques
JPH0197291A (ja) * 1987-10-05 1989-04-14 Fmc Corp 機械パルプの漂白方法
JPH0677245B2 (ja) * 1988-08-11 1994-09-28 株式会社日立製作所 キャッシュ制御方法および情報処理システム

Also Published As

Publication number Publication date
PT96951B (pt) 1998-10-30
EP0446110A1 (fr) 1991-09-11
PT96951A (pt) 1991-10-31
CA2037678A1 (fr) 1991-09-08
ATE125013T1 (de) 1995-07-15
ES2074670T3 (es) 1995-09-16
NO910865D0 (no) 1991-03-05
NO178899B (no) 1996-03-18
FR2659363A1 (fr) 1991-09-13
DE69111098T2 (de) 1995-11-23
CA2037678C (fr) 1999-11-16
FR2659363B1 (fr) 1996-04-19
FI911118A (sv) 1991-09-08
NO910865L (no) 1991-09-09
NZ237310A (en) 1993-07-27
AU641478B2 (en) 1993-09-23
DE69111098D1 (de) 1995-08-17
US5143581A (en) 1992-09-01
NO178899C (no) 1996-06-26
FI98840C (sv) 1997-08-25
JPH0660474B2 (ja) 1994-08-10
EP0446110B1 (fr) 1995-07-12
AU7266891A (en) 1991-09-12
JPH04214491A (ja) 1992-08-05
FI911118A0 (sv) 1991-03-06

Similar Documents

Publication Publication Date Title
AU3404099A (en) Method of producing lignocellulosic pulp from non-woody species
SE7902901L (sv) Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
SE8100373L (sv) Forfarande vid ozonblekning av pappersmassa
DE60144190D1 (de) Verfahren zum bleichen von zellstoff
FI98840B (sv) Förfarande för framställning av högutbytesmassor
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
ATE21133T1 (de) Verfahren zur herstellung von halbgebleichten zellstoffen.
FI934036A (sv) Förfarande för blekning av massa med klorfria kemikalier
ATE140283T1 (de) Verfahren zur herstellung von gebleichtem hochausbeutepapierzellstoff
AU1406788A (en) Pulp bleaching process
SE0301773D0 (sv) Alkaline extraction stages comprising xylanase
MX9602927A (es) Procedimiento para blanquear pasta pulpa kraft.
FI950882A (sv) Metod för behandling av processvatten
ES8603607A1 (es) Procedimiento para blanquear pastas papeleras quimicas
FI952551A0 (sv) Förfarande för blekning av lignocellulosahaltig massa
DE3861982D1 (de) Verfahren zur herstellung von chemithermomechanischen zellstoffen.
BR9406763A (pt) Processo de tratamento de polpa de papel quimica
SE8604852D0 (sv) Delignification and bleaching of a cellulose pulp with an alkali-oxygen-hypochlorite extraction
SE8700313L (sv) Forfarande for blekning av mekaniska massor
DE3667184D1 (de) Verfahren zum bleichen von chemischen holzpulpen.
SE9501287D0 (sv) Electrochemical process
SE9900178D0 (sv) Removal of transition metal ions from wood pulp fibers
SE9202464D0 (sv) Foerfarande foer behandling av processvatten
RU96114250A (ru) Способ получения древесной массы

Legal Events

Date Code Title Description
BB Publication of examined application