SE8600615L - Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande - Google Patents

Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande

Info

Publication number
SE8600615L
SE8600615L SE8600615A SE8600615A SE8600615L SE 8600615 L SE8600615 L SE 8600615L SE 8600615 A SE8600615 A SE 8600615A SE 8600615 A SE8600615 A SE 8600615A SE 8600615 L SE8600615 L SE 8600615L
Authority
SE
Sweden
Prior art keywords
mechanical mass
pulp
chemical
ctmp
cmp
Prior art date
Application number
SE8600615A
Other languages
English (en)
Swedish (sv)
Other versions
SE8600615D0 (sv
Inventor
T P M Tibbling
Original Assignee
Kamyr Ab
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 Kamyr Ab filed Critical Kamyr Ab
Publication of SE8600615D0 publication Critical patent/SE8600615D0/xx
Publication of SE8600615L publication Critical patent/SE8600615L/

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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Joints Allowing Movement (AREA)
  • Springs (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Liquid Crystal Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Electron Beam Exposure (AREA)
SE8600615A 1985-02-15 1986-02-12 Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande SE8600615L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70200085A 1985-02-15 1985-02-15

Publications (2)

Publication Number Publication Date
SE8600615D0 SE8600615D0 (sv) 1986-02-12
SE8600615L true SE8600615L (sv) 1986-08-16

Family

ID=24819495

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8600615A SE8600615L (sv) 1985-02-15 1986-02-12 Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande

Country Status (8)

Country Link
EP (1) EP0191756B1 ( )
JP (1) JPS61245392A ( )
AT (1) ATE39714T1 ( )
BR (1) BR8600637A ( )
DE (1) DE3661641D1 ( )
FI (1) FI85729C ( )
NO (1) NO166244C ( )
SE (1) SE8600615L ( )

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455203B (sv) * 1986-10-20 1988-06-27 Eka Nobel Ab Forfarande for styrning av peroxidblekning av massa
FR2622221A1 (fr) * 1987-10-22 1989-04-28 Atochem Procede de blanchiment de pates
FR2639371B1 (fr) * 1988-11-24 1995-04-14 Atochem Procede de blanchiment de pates desencrees
CA1340348C (en) * 1989-03-23 1999-01-26 Michel Barbe Bleaching process for the production of high bright pulps
JPH076148B2 (ja) * 1989-06-27 1995-01-30 新王子製紙株式会社 リグノセルロース物質の漂白方法
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.
GB9212926D0 (en) * 1992-06-18 1992-07-29 Morton Int Inc Method of bleaching paper pulp
US5464501A (en) * 1993-04-06 1995-11-07 Societe Anonyme Pour L'etude Et L'exploitation L'air Liquide, Des Procedes Georges Claude Bleaching recycled pulp with a reductive-oxidative sequence
IT1296947B1 (it) * 1997-12-10 1999-08-03 Donato Fausto De Composizione per sbiancare la pasta di legno e relativo procedimento
EP1418269B1 (en) 2002-11-05 2009-02-11 Rohm And Haas Company Method for brightening virgin mechanical pulp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1820502A (en) * 1928-06-30 1931-08-25 Champion Fibre Company Bleaching cellulose pulp
US2290601A (en) * 1940-02-16 1942-07-21 Du Pont Bleaching of ground wood pulp with preliminary bisulphite treatment
US2862784A (en) * 1955-03-04 1958-12-02 Virginia Smelting Company Oxidative-reductive multi-stage bleaching of ground wood pulp
JPS5679798A (en) * 1979-12-03 1981-06-30 Mitsubishi Gas Chemical Co Production of bleaching machine pulp
JPS575992A (en) * 1980-06-04 1982-01-12 Mitsubishi Gas Chemical Co Bleaching of high yield pulp by peroxide
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

Also Published As

Publication number Publication date
EP0191756A1 (en) 1986-08-20
FI85729B (fi) 1992-02-14
FI85729C (fi) 1992-05-25
BR8600637A (pt) 1986-11-04
JPS61245392A (ja) 1986-10-31
NO860546L (no) 1986-08-18
FI860688A (fi) 1986-08-16
SE8600615D0 (sv) 1986-02-12
FI860688A0 (fi) 1986-02-14
ATE39714T1 (de) 1989-01-15
NO166244C (no) 1991-06-19
DE3661641D1 (en) 1989-02-09
EP0191756B1 (en) 1989-01-04
NO166244B (no) 1991-03-11

Similar Documents

Publication Publication Date Title
SE8600615L (sv) Hog ljushet astadkommes genom blekning av mekanisk massa, sasom kemisk-mekanisk massa (cmp), kemisk-termisk-mekanisk massa (ctmp) och liknande
GB9018426D0 (en) Improvements in or relating to novel compounds
IN161416B ( )
GR3017274T3 (en) Process for blanching plant materials in dry environment.
DE69212051D1 (de) Verfahren zur Herstellung von gebleichtem Hochausbeutepapierzellstoff
BR9204097A (pt) Processo para obtener melhorada,seletividade de deslignificacao de polpa durante a deslignificacao com oxigenio,de elevada consistencia
SE8405128L (sv) Behandling av hogutbytesmassa
NO843255L (no) Fremgangsmaate for peroksydbleking av celluloseholdig materiale
CA2014563A1 (en) Hydrogen peroxide reinforced oxygen delignification
NZ235754A (en) Bleaching wood pulp with chlorine dioxide first at ph of 5 to 10 then at ph of 1.9 to 4.2
FI882769A (fi) Styrning av peroxidblekning av olika traemassor.
MY106117A (en) Delignification of lignocellulose-containing fiber.
EP0377981A3 (en) Process for improved alkaline oxidative delignification of cellulose pulp
SE9700884L (sv) Blekning med klordioxid i ett trefassteg
SE9100744L (en) Pulp bleaching method - involves multistage bleach sequence using ozone, oxygen@, hydrogen peroxide and chlorine di:oxide or peracetic acid
SE8501032D0 (sv) Kontinuerligt syre-alkaliextraktionsforfarande for blekning och delignifiering av tremassa samt anordning herfor
SE8405369L (sv) Sett att bleka kraftmassa
SE9602601L (sv) Förfarande för blekning av mekanisk massa i minst två steg