IT1170488B - Procedimento di sbianca per materiale contenente cellulosa - Google Patents

Procedimento di sbianca per materiale contenente cellulosa

Info

Publication number
IT1170488B
IT1170488B IT48965/83A IT4896583A IT1170488B IT 1170488 B IT1170488 B IT 1170488B IT 48965/83 A IT48965/83 A IT 48965/83A IT 4896583 A IT4896583 A IT 4896583A IT 1170488 B IT1170488 B IT 1170488B
Authority
IT
Italy
Prior art keywords
cellulose
containing material
whitening procedure
whitening
procedure
Prior art date
Application number
IT48965/83A
Other languages
English (en)
Other versions
IT8348965A0 (it
Inventor
Tjell-Ake Hagglund
Original Assignee
Sca Development 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 Sca Development Ab filed Critical Sca Development Ab
Publication of IT8348965A0 publication Critical patent/IT8348965A0/it
Application granted granted Critical
Publication of IT1170488B publication Critical patent/IT1170488B/it

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
    • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
IT48965/83A 1982-09-14 1983-09-12 Procedimento di sbianca per materiale contenente cellulosa IT1170488B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8205241A SE451606B (sv) 1982-09-14 1982-09-14 Sett vid blekning av hogutbytesmassor medelst peroxider

Publications (2)

Publication Number Publication Date
IT8348965A0 IT8348965A0 (it) 1983-09-12
IT1170488B true IT1170488B (it) 1987-06-03

Family

ID=20347840

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48965/83A IT1170488B (it) 1982-09-14 1983-09-12 Procedimento di sbianca per materiale contenente cellulosa

Country Status (9)

Country Link
JP (1) JPS5966589A (it)
AU (1) AU554072B2 (it)
DE (1) DE3333219C2 (it)
FI (1) FI74054B (it)
FR (1) FR2537177B1 (it)
IT (1) IT1170488B (it)
NL (1) NL8303159A (it)
NO (1) NO833282L (it)
SE (1) SE451606B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2582692B1 (fr) * 1985-05-29 1987-12-11 Atochem Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
FR2593527B1 (fr) * 1986-01-30 1988-03-25 Centre Tech Ind Papier Procede de blanchiment des pates mecaniques.
FR2622221A1 (fr) * 1987-10-22 1989-04-28 Atochem Procede de blanchiment de pates
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.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008603A (en) * 1931-09-17 1935-07-16 Thorne Carl Busch Apparatus for refining pulp and the like
DE1203592B (de) * 1962-02-23 1965-10-21 Rudolf Bott Dipl Ing Verfahren zum Bleichen von cellulosehaltigen Faserstoffen
GB1106842A (en) * 1965-01-25 1968-03-20 Electric Reduction Co Manufacture of cellulosic pulp
FR1524581A (fr) * 1966-05-25 1968-05-10 Solvay Procédé de réglage de la blancheur d'une pâte cellulosique traitée par le peroxyde d'hydrogène ou un produit similaire
DE2219505C3 (de) * 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff
DE2219504C2 (de) * 1972-04-21 1974-10-03 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
SE390178B (sv) * 1974-09-04 1976-12-06 Sunds Ab Sett vid blekning av lignocellulosahaltigt material med en kombination av gasfasklorering och ett system for fortrengningsblekning innehallande klordioxid
SE415581B (sv) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab Forfarande for perocidblekning av hogutbytesmassa
SE420329C (sv) * 1978-02-16 1984-10-15 Mo Och Domsjoe Ab Forfarande for framstellning av slipmassa vid overtryck
JPS5545806A (en) * 1978-09-21 1980-03-31 Oji Paper Co Peroxide bleaching method of wood pulp
CA1151363A (en) * 1979-04-17 1983-08-09 Henri Lemoyne Process for the delignification of unbleached chemical pulp
JPS5721591A (en) * 1980-07-11 1982-02-04 Mitsubishi Gas Chemical Co Peroxide bleaching of wood pulp

Also Published As

Publication number Publication date
SE8205241L (sv) 1984-03-15
SE451606B (sv) 1987-10-19
FI74054B (fi) 1987-08-31
IT8348965A0 (it) 1983-09-12
FR2537177B1 (fr) 1986-02-21
DE3333219A1 (de) 1984-03-15
AU554072B2 (en) 1986-08-07
NO833282L (no) 1984-03-15
FR2537177A1 (fr) 1984-06-08
DE3333219C2 (de) 1986-10-23
SE8205241D0 (sv) 1982-09-14
AU1837983A (en) 1984-03-22
FI833246A0 (fi) 1983-09-12
JPS5966589A (ja) 1984-04-16
NL8303159A (nl) 1984-04-02
FI833246A (fi) 1984-03-15

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