NO147761C - Fremgangsmaate til bleking av lignocellulosemateriale ved behandling med nitrogen-oksygen-forbindelser - Google Patents

Fremgangsmaate til bleking av lignocellulosemateriale ved behandling med nitrogen-oksygen-forbindelser

Info

Publication number
NO147761C
NO147761C NO752025A NO752025A NO147761C NO 147761 C NO147761 C NO 147761C NO 752025 A NO752025 A NO 752025A NO 752025 A NO752025 A NO 752025A NO 147761 C NO147761 C NO 147761C
Authority
NO
Norway
Prior art keywords
lignocellulos
blacking
nitrogen
procedure
treatment
Prior art date
Application number
NO752025A
Other languages
English (en)
Norwegian (no)
Other versions
NO752025L (fi
NO147761B (no
Inventor
Andrew Edward 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 NO752025L publication Critical patent/NO752025L/no
Publication of NO147761B publication Critical patent/NO147761B/no
Publication of NO147761C publication Critical patent/NO147761C/no

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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
    • 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)
NO752025A 1974-06-11 1975-06-09 Fremgangsmaate til bleking av lignocellulosemateriale ved behandling med nitrogen-oksygen-forbindelser NO147761C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25845/74A GB1505070A (en) 1974-06-11 1974-06-11 Process for bleaching of lignocellulosic material

Publications (3)

Publication Number Publication Date
NO752025L NO752025L (fi) 1975-12-12
NO147761B NO147761B (no) 1983-02-28
NO147761C true NO147761C (no) 1983-06-08

Family

ID=10234280

Family Applications (1)

Application Number Title Priority Date Filing Date
NO752025A NO147761C (no) 1974-06-11 1975-06-09 Fremgangsmaate til bleking av lignocellulosemateriale ved behandling med nitrogen-oksygen-forbindelser

Country Status (10)

Country Link
JP (1) JPS522003B2 (fi)
BR (1) BR7503680A (fi)
CA (1) CA1045759A (fi)
DE (1) DE2526084C2 (fi)
ES (1) ES438433A1 (fi)
FI (1) FI751734A (fi)
FR (1) FR2274729A1 (fi)
GB (1) GB1505070A (fi)
NO (1) NO147761C (fi)
SE (1) SE7506646L (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification
SE421938B (sv) * 1980-06-05 1982-02-08 Mo Och Domsjoe Ab Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning
SE425674B (sv) * 1981-03-23 1982-10-25 Mo Och Domsjoe Ab Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas
DE3118384C1 (de) * 1981-05-09 1982-11-11 Mannesmann AG, 4000 Düsseldorf Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider
SE450393B (sv) * 1981-10-27 1987-06-22 Mo Och Domsjoe Ab Forfarande for behandling av ved med kveveoxider och syrgas fore sulfatkokning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204460C (fi) *
DE212838C (fi) *
DE391713C (de) * 1922-12-12 1924-03-11 Paul Krais Dr Verfahren zum Aufschliessen von Stroh, Schilf u. dgl.

Also Published As

Publication number Publication date
JPS522003B2 (fi) 1977-01-19
DE2526084A1 (de) 1976-01-02
GB1505070A (en) 1978-03-22
ES438433A1 (es) 1977-05-16
BR7503680A (pt) 1976-06-29
SE7506646L (sv) 1975-12-12
FR2274729A1 (fr) 1976-01-09
CA1045759A (en) 1979-01-09
AU8201275A (en) 1976-12-16
FI751734A (fi) 1975-12-12
FR2274729B1 (fi) 1978-09-22
NO752025L (fi) 1975-12-12
NO147761B (no) 1983-02-28
JPS5132802A (fi) 1976-03-19
DE2526084C2 (de) 1981-11-26

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