ATE112340T1 - Verfahren zur erhaltung der mechanischen festigkeit von chemischen zellstoffen. - Google Patents

Verfahren zur erhaltung der mechanischen festigkeit von chemischen zellstoffen.

Info

Publication number
ATE112340T1
ATE112340T1 AT91917649T AT91917649T ATE112340T1 AT E112340 T1 ATE112340 T1 AT E112340T1 AT 91917649 T AT91917649 T AT 91917649T AT 91917649 T AT91917649 T AT 91917649T AT E112340 T1 ATE112340 T1 AT E112340T1
Authority
AT
Austria
Prior art keywords
pct
mechanical strength
maintaining
chemical pulp
date apr
Prior art date
Application number
AT91917649T
Other languages
English (en)
Inventor
Marc Hoyos
Marcel Robberechts
Paul Essemaeker
Original Assignee
Solvay Interox
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 Solvay Interox filed Critical Solvay Interox
Application granted granted Critical
Publication of ATE112340T1 publication Critical patent/ATE112340T1/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
    • D21C9/16—Bleaching ; Apparatus therefor with per 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
    • D21C9/1057—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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Materials For Medical Uses (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
AT91917649T 1990-10-17 1991-10-04 Verfahren zur erhaltung der mechanischen festigkeit von chemischen zellstoffen. ATE112340T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9000985A BE1004630A3 (fr) 1990-10-17 1990-10-17 Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.

Publications (1)

Publication Number Publication Date
ATE112340T1 true ATE112340T1 (de) 1994-10-15

Family

ID=3884976

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91917649T ATE112340T1 (de) 1990-10-17 1991-10-04 Verfahren zur erhaltung der mechanischen festigkeit von chemischen zellstoffen.

Country Status (13)

Country Link
US (1) US5534115A (de)
EP (1) EP0553141B1 (de)
AT (1) ATE112340T1 (de)
AU (1) AU648115B2 (de)
BE (1) BE1004630A3 (de)
BR (1) BR9107000A (de)
CA (1) CA2094268A1 (de)
DE (1) DE69104374D1 (de)
FI (1) FI931664A (de)
NO (1) NO300901B1 (de)
PT (1) PT99243B (de)
WO (1) WO1992007139A1 (de)
ZA (1) ZA918219B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
EP0652321B1 (de) * 1993-11-04 1998-01-21 Morton International, Inc. Bleichen von chemischem Zellstoff
SE9402726L (sv) * 1994-08-16 1995-08-28 Kvaerner Pulping Tech Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg
USH1690H (en) * 1995-07-20 1997-11-04 Nye; Jeffrey Process for bleaching kraft pulp
SE516219C2 (sv) * 1995-10-26 2001-12-03 Kvaerner Pulping Tech Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg
ES2122907B1 (es) * 1996-08-22 1999-07-01 Valverde Alonso Angel Procedimiento ecologico de obtencion de celulosa.
US6325892B1 (en) * 1998-09-23 2001-12-04 University Of New Brunswick Method of delignifying sulphite pulp with oxygen and borohydride
US6428653B1 (en) 2000-12-04 2002-08-06 West Fraser Timber Co. Ltd. Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide
US20080087390A1 (en) * 2006-10-11 2008-04-17 Fort James Corporation Multi-step pulp bleaching
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
US8980051B2 (en) * 2009-04-24 2015-03-17 International Paper Company Sulfonation of pulp produced by alkali pulping process
BR102014027199B1 (pt) * 2014-07-14 2022-10-04 Nalco Company Método para aprimorar a fabricação de polpa de soda ou kraft

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005947B1 (de) * 1980-02-16 1981-01-29 Degussa Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
SE8600615L (sv) * 1985-02-15 1986-08-16 Kamyr Ab Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande
JPH0197291A (ja) * 1987-10-05 1989-04-14 Fmc Corp 機械パルプの漂白方法
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
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.

Also Published As

Publication number Publication date
NO300901B1 (no) 1997-08-11
AU8637191A (en) 1992-05-20
ZA918219B (en) 1992-09-30
US5534115A (en) 1996-07-09
FI931664A0 (fi) 1993-04-14
PT99243A (pt) 1992-08-31
WO1992007139A1 (fr) 1992-04-30
EP0553141B1 (de) 1994-09-28
EP0553141A1 (de) 1993-08-04
BE1004630A3 (fr) 1992-12-22
CA2094268A1 (fr) 1992-04-18
NO931419L (no) 1993-04-16
AU648115B2 (en) 1994-04-14
DE69104374D1 (de) 1994-11-03
BR9107000A (pt) 1993-09-08
FI931664A (fi) 1993-04-14
PT99243B (pt) 1999-04-30
NO931419D0 (no) 1993-04-16

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Legal Events

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