SE7705136L - PROCEDURE FOR DELIGNIFICATION OF CELLULOSA MATERIAL - Google Patents

PROCEDURE FOR DELIGNIFICATION OF CELLULOSA MATERIAL

Info

Publication number
SE7705136L
SE7705136L SE7705136A SE7705136A SE7705136L SE 7705136 L SE7705136 L SE 7705136L SE 7705136 A SE7705136 A SE 7705136A SE 7705136 A SE7705136 A SE 7705136A SE 7705136 L SE7705136 L SE 7705136L
Authority
SE
Sweden
Prior art keywords
cellulosa
delignification
procedure
cellulosa material
Prior art date
Application number
SE7705136A
Other languages
Swedish (sv)
Inventor
A E Yethon
Original Assignee
Canadia Ind Ltd
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 Canadia Ind Ltd filed Critical Canadia Ind Ltd
Publication of SE7705136L publication Critical patent/SE7705136L/en

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)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
SE7705136A 1976-05-04 1977-05-03 PROCEDURE FOR DELIGNIFICATION OF CELLULOSA MATERIAL SE7705136L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA251,752A CA1070909A (en) 1976-05-04 1976-05-04 Nitrogen dioxide-oxygen delignification

Publications (1)

Publication Number Publication Date
SE7705136L true SE7705136L (en) 1977-11-05

Family

ID=4105864

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7705136A SE7705136L (en) 1976-05-04 1977-05-03 PROCEDURE FOR DELIGNIFICATION OF CELLULOSA MATERIAL

Country Status (12)

Country Link
JP (1) JPS52134690A (en)
AU (1) AU498646B2 (en)
BR (1) BR7702713A (en)
CA (1) CA1070909A (en)
DE (1) DE2717257A1 (en)
ES (1) ES458434A1 (en)
FI (1) FI771383A7 (en)
FR (1) FR2350421A1 (en)
NO (1) NO771297L (en)
NZ (1) NZ183555A (en)
SE (1) SE7705136L (en)
ZA (1) ZA771424B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441192B (en) * 1980-05-27 1985-09-16 Mo Och Domsjoe Ab PROCEDURE FOR DELIGNIFICATION OF CHEMICAL CELLULOSAMASSA WITH OXYGEN IN THE PRESENCE OF ONE OR MULTIPLE NEUTRALIZING AGENTS
SE421938B (en) * 1980-06-05 1982-02-08 Mo Och Domsjoe Ab PROCEDURE FOR TREATMENT OF CELLULOSAMASSA
SE445122B (en) * 1980-12-17 1986-06-02 Mo Och Domsjoe Ab PROCEDURE FOR DELIGNIFICATION OF CELLULOSAMASSA IN THE PRESENTATION OF NITROGEN Dioxide
SE425674B (en) * 1981-03-23 1982-10-25 Mo Och Domsjoe Ab PROCEDURE FOR DELIGNIFICATION OF CELLULOSAMASSA WITH NITROGEN Dioxide AND Oxygen
DE3118384C1 (en) * 1981-05-09 1982-11-11 Mannesmann AG, 4000 Düsseldorf Process for bleaching chemically produced pulp with ozone
SE448006B (en) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab PROCEDURE FOR WHITING CELLULOSAMASSA INCLUDING AN ACTIVATION STEP WITH NITROGEN OXIDES
SE450394B (en) * 1981-12-30 1987-06-22 Mo Och Domsjoe Ab PROCEDURE FOR BLACKING OF SIMILAR CELLULOSAMASSA
JP2002302888A (en) * 2001-04-05 2002-10-18 Oji Paper Co Ltd Manufacturing method of bleached pulp
FI20115754A0 (en) * 2011-03-22 2011-07-15 Andritz Oy Process and arrangement for the treatment of chemical pulp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505070A (en) * 1974-06-11 1978-03-22 Canadian Ind Process for bleaching of lignocellulosic material

Also Published As

Publication number Publication date
FI771383A7 (en) 1977-11-05
NO771297L (en) 1977-11-07
BR7702713A (en) 1978-03-21
AU498646B2 (en) 1979-03-22
ZA771424B (en) 1978-02-22
AU2311177A (en) 1978-09-14
NZ183555A (en) 1978-11-13
DE2717257A1 (en) 1977-11-17
JPS52134690A (en) 1977-11-11
FR2350421B1 (en) 1982-08-13
ES458434A1 (en) 1978-03-16
CA1070909A (en) 1980-02-05
FR2350421A1 (en) 1977-12-02

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