SE8101815L - - Google Patents

Info

Publication number
SE8101815L
SE8101815L SE8101815A SE8101815A SE8101815L SE 8101815 L SE8101815 L SE 8101815L SE 8101815 A SE8101815 A SE 8101815A SE 8101815 A SE8101815 A SE 8101815A SE 8101815 L SE8101815 L SE 8101815L
Authority
SE
Sweden
Application number
SE8101815A
Other versions
SE425674B (sv
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 filed Critical
Priority to SE8101815A priority Critical patent/SE425674B/sv
Priority to NZ199697A priority patent/NZ199697A/en
Priority to AU81151/82A priority patent/AU550433B2/en
Priority to JP57037131A priority patent/JPS57161185A/ja
Priority to FR8204875A priority patent/FR2502203A1/fr
Priority to CA000399940A priority patent/CA1180510A/en
Publication of SE8101815L publication Critical patent/SE8101815L/xx
Publication of SE425674B publication Critical patent/SE425674B/sv

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE8101815A 1981-03-23 1981-03-23 Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas SE425674B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8101815A SE425674B (sv) 1981-03-23 1981-03-23 Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas
NZ199697A NZ199697A (en) 1981-03-23 1982-02-11 Delignifying lignocellulose pulp using oxygen and nitrogen dioxide treatment followed by oxygen and alkali treatment
AU81151/82A AU550433B2 (en) 1981-03-23 1982-03-05 Bleaching cellulose pulp
JP57037131A JPS57161185A (en) 1981-03-23 1982-03-08 Delignification of cellulose pulp
FR8204875A FR2502203A1 (fr) 1981-03-23 1982-03-23 Procede de delignification de pate de cellulose
CA000399940A CA1180510A (en) 1981-03-23 1982-03-31 Process for removing residual lignin in chemical cellulose pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8101815A SE425674B (sv) 1981-03-23 1981-03-23 Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas

Publications (2)

Publication Number Publication Date
SE8101815L true SE8101815L (enrdf_load_stackoverflow) 1982-09-24
SE425674B SE425674B (sv) 1982-10-25

Family

ID=20343394

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8101815A SE425674B (sv) 1981-03-23 1981-03-23 Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas

Country Status (6)

Country Link
JP (1) JPS57161185A (enrdf_load_stackoverflow)
AU (1) AU550433B2 (enrdf_load_stackoverflow)
CA (1) CA1180510A (enrdf_load_stackoverflow)
FR (1) FR2502203A1 (enrdf_load_stackoverflow)
NZ (1) NZ199697A (enrdf_load_stackoverflow)
SE (1) SE425674B (enrdf_load_stackoverflow)

Family Cites Families (2)

* 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
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification

Also Published As

Publication number Publication date
AU550433B2 (en) 1986-03-20
JPS57161185A (en) 1982-10-04
NZ199697A (en) 1986-01-24
AU8115182A (en) 1982-09-30
JPS6360158B2 (enrdf_load_stackoverflow) 1988-11-22
SE425674B (sv) 1982-10-25
FR2502203B1 (enrdf_load_stackoverflow) 1984-11-23
FR2502203A1 (fr) 1982-09-24
CA1180510A (en) 1985-01-08

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