NZ183555A - Nitrogen dioxide-alkali/oxygen treatment for lignocellulose delignification - Google Patents

Nitrogen dioxide-alkali/oxygen treatment for lignocellulose delignification

Info

Publication number
NZ183555A
NZ183555A NZ183555A NZ18355577A NZ183555A NZ 183555 A NZ183555 A NZ 183555A NZ 183555 A NZ183555 A NZ 183555A NZ 18355577 A NZ18355577 A NZ 18355577A NZ 183555 A NZ183555 A NZ 183555A
Authority
NZ
New Zealand
Prior art keywords
delignification
lignocellulose
alkali
nitrogen dioxide
oxygen treatment
Prior art date
Application number
NZ183555A
Inventor
A Yethon
Original Assignee
Canadian Ind
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 Canadian Ind filed Critical Canadian Ind
Publication of NZ183555A publication Critical patent/NZ183555A/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)
NZ183555A 1976-05-04 1977-03-09 Nitrogen dioxide-alkali/oxygen treatment for lignocellulose delignification NZ183555A (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
NZ183555A true NZ183555A (en) 1978-11-13

Family

ID=4105864

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ183555A NZ183555A (en) 1976-05-04 1977-03-09 Nitrogen dioxide-alkali/oxygen treatment for lignocellulose delignification

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) FI771383A (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 Method of production for 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
ZA771424B (en) 1978-02-22
AU498646B2 (en) 1979-03-22
SE7705136L (en) 1977-11-05
JPS52134690A (en) 1977-11-11
FR2350421B1 (en) 1982-08-13
FR2350421A1 (en) 1977-12-02
CA1070909A (en) 1980-02-05
AU2311177A (en) 1978-09-14
BR7702713A (en) 1978-03-21
ES458434A1 (en) 1978-03-16
DE2717257A1 (en) 1977-11-17
NO771297L (en) 1977-11-07
FI771383A (en) 1977-11-05

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